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Wyszukujesz frazę "Wastewater Treatment" wg kryterium: Temat


Tytuł:
Evaluation of wastewater treatment efficiency in Wolbrom
Autorzy:
Gawron, M.
Łukasiewicz, M.
Malinowski, M.
Salamon, J.
Powiązania:
https://bibliotekanauki.pl/articles/101059.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
wastewater treatment plant
efficiency
wastewater treatment
Opis:
The study was conducted to assess the effectiveness of wastewater treatment at the municipal wastewater treatment plant in Wolbrom, to which predominantly domestic wastewater and industrial sewage flow. The assessment was made based on the analysis of the physical and chemical research results of raw and treated wastewater. The research was carried out in the period from January 2014 to December 2014. To perform the analysis of the treatment plant efficiency, four indicators of wastewater pollutants such as BOD5 , COD, total nitrogen and total phosphorus were selected for further investigation. For each of the indicators degrees of reduction and coefficients of treatment plant operational reliability were calculated. The calculated degrees of reduction for each of the indicators were high and amounted to 99.0% for BOD5 , 95.2% for COD, 91.0% for total nitrogen and 91.6%. for total phosphorus. These results prove the effective reduction in the amount of pollutants. The determined coefficients of treatment plant operational reliability were at a low level: BOD5 - 0.27, COD - 0.44, total nitrogen - 0.33 and total phosphorus - 0.53. The conducted analyses prove the effective operation of the treatment plant, which was confirmed by high efficiency of pollutants removal.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/4; 1889-1897
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative analysis of selected wastewater treatment plants
Autorzy:
Nowakowska, Anita
Powiązania:
https://bibliotekanauki.pl/articles/1177394.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
biological wastewater treatment plant
mechanical-biological wastewater treatment plant
wastewater
wastewater management
Opis:
The article presents the classification of wastewater treatment plants and indicates the types of processes occurring during wastewater treatment. The purpose of the article is to get acquainted with the functioning as well as technical and economic differences of biological and mechanical-biological wastewater treatment plant. The author also made a comparative analysis containing a list of wastewater treatment efficiency in the presented treatment plants, as well as compared economic aspects necessary for the operation of these treatment plants.
Źródło:
World Scientific News; 2018, 104; 359-374
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrobotaniczne oczyszczalnie ścieków
Autorzy:
Gołąb, M.
Nocoń, W.
Michalski, R.
Powiązania:
https://bibliotekanauki.pl/articles/273982.pdf
Data publikacji:
2012
Wydawca:
Roble
Tematy:
oczyszczanie ścieków
oczyszczalnia ścieków
hydrobotaniczna oczyszczalnia ścieków
system Lemna
wastewater treatment
wastewater treatment plant
hydrobotanic wastewater treatment plant
Lemna-type
Źródło:
LAB Laboratoria, Aparatura, Badania; 2012, 17, 4; 6-10
1427-5619
Pojawia się w:
LAB Laboratoria, Aparatura, Badania
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal Changes in Nitrogen, Phosphorus, BOD and COD Removal in Bystre Wastewater Treatment Plant
Autorzy:
Skoczko, I.
Struk-Sokołowska, J.
Ofman, P.
Powiązania:
https://bibliotekanauki.pl/articles/124271.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
seasonal changes
dairy wastewater
Opis:
The aim of this study was to determinate seasonal changes in industrial wastewater treatment effectiveness. Studies were carried out in mechanical-biological wastewater treatment plant in Bystre near Giżycko to which inflows mixture of domestic and dairy wastewater. Laboratory studies were carried out by Water and Wastewater Company in Giżycko. For statistical analysis results form years 2014 and 2015 were considered. The scope of statistical analysis includes basic statistical measures including arithmetic mean, median, minimum, maximum and standard deviation. Changes in seasonal treatment effectiveness were shown by Fisher-Snedecore LSD test. Seasonal changes were observed for BOD, COD and total nitrogen removal effectiveness. Total phosphorus was not subjected to that kind of changes.
Źródło:
Journal of Ecological Engineering; 2017, 18, 4; 185-191
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the Microbial Composition of Municipal Wastewater Treated in Biological Processes
Autorzy:
Bawiec, A.
Pawęska, K.
Jarząb, A.
Powiązania:
https://bibliotekanauki.pl/articles/125067.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
municipal wastewater
microbial composition
wastewater treatment
Opis:
Municipal wastewater is characterized by diverse microbial content, largely dependent on their sources as well as many other factors like condition and health of their producer, but also environmental factors. The number and share of individual bacterial population in wastewater is changing during the process of their treatment in wastewater treatment plants. The microbial content of treated wastewater is significantly affected by the type of technology used for wastewater treatment. The paper presents the results of the species composition of bacteria present in the wastewater at various stages of treatment for the two different technologies. Samples of wastewater from hydroponic wastewater treatment plant and from the plant whose technology is based on biofilters were analysed. A key mechanism for wastewater treatment in both cases is biological treatment, using microbial activity that decomposes pollutants in the wastewater, which significantly contributes to changes in the species composition of bacteria comparing to microbiological composition of sewage flowing into the treatment plant. Analyses of microbial composition showed that in the objects consisting of preliminary tank and biofilter, composition of bacteria species is changing, but many species isolated from raw sewage is also found in treated wastewater. In the plant with hydroponic lagoon after wastewater treatment throughout the process system, bacteria present in raw sewage or in wastewater after biological treatment were not identified in the outlet.
Źródło:
Journal of Ecological Engineering; 2016, 17, 3; 41-46
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Treatment of Coking Wastewater Using Sorption Processes
Autorzy:
Bargieł, Piotr
Zabochnicka-Świątek, Magdalena
Wolski, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/2027801.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
coking wastewater
wastewater treatment
sorption
biochar
Opis:
Adsorption is one of the basic surface phenomena involving saturation of the adsorbent surface with adsorbate molecules located near the adsorbent-adsorbate interface. The processes that are accompanied by the accumulation of adsorbate molecules on the surface are different from absorption, which is related to absorbing molecules into the whole mass and requires diffusion into the interior. If both processes can occur simultaneously, this phenomenon is called sorption. The aim of the present study was to characterize the sorption properties of selected sorbents and to assess the possibility of their application to support the treatment of coking wastewater from ammonium nitrogen, phenol, and TOC. The scope of the study included the examinations of sorption properties of selected sorbents (coal dust, coke dust, biochar), physicochemical tests of coking wastewater after biological treatment, as well as the examinations aimed to determine the dose of adsorbents and time needed to establish the equilibrium state of the process. The results obtained were analyzed for the effect of dose and contact time on the pollutant removal efficiency. The literature describes the efficiency of ammonium nitrogen removal from wastewater using chemical processes. However, there is a lack of studies on the removal of ammonium nitrogen, phenol, and TOC from industrial (coking) wastewater. The conducted study aimed to develop an alternative solution to the currently used conventional methods of removing high concentrations of pollutants from wastewater.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 43-47
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The State and Needs of the Development of Water Supply and Sewerage Infrastructure in The Radzyń District
Autorzy:
Bogusz, Monika
Marzec, Michał
Malik, Arkadiusz
Jóźwiakowski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/123674.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
water supply network
sewerage network
collective wastewater treatment plants
household wastewater treatment plants
Opis:
The paper presents the current state of water supply and sewerage infrastructure and the need for its expanding in Radzyń district. The district is located in the northern part of Lublin Voivodeship in Poland. The following communes belong to Radzyń district: the municipal commune of Radzyń Podlaski and 7 rural communes: Borki, Czemierniki, Kąkolewnica, Komarówka Podlaska, Radzyń Podlaski, Ulan-Majorat, Wohyń. The data show that the water supply network in Radzyń district is well developed. The most significant percentage of the population using the water supply network has the rural commune of Radzyń Podlaski – 99.9%, while the smallest, commune Komarówka Podlaska – 54.5%. The survey showed that there was a very large disproportion between the development of the sewerage and water supply systems. The largest percentage of the population using the sewerage network has the municipal commune of Radzyń Podlaski – 99.7%. The smallest percentage of users of collective sewage disposal systems was recorded in the rural commune of Radzyń Podlaski (7.2%). The commune of UlanMajorat does not have a sewerage system. The survey conducted in 2016 shows that 8 collective wastewater treatment plants operated in Radzyń district at that time. The total capacity of the treatment plants is over 5,300 m3/d. In 2016, Radzyń district had about 1,000 household wastewater treatment plants. The presented data show that the condition of the sanitary infrastructure in rural communes of Radzyń district is unsatisfactory and requires the investment activities mainly aimed at expanding collective sewage disposal and treatment systems as well as developing a network of household wastewater treatment plants.
Źródło:
Journal of Ecological Engineering; 2020, 21, 3; 171-179
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the Effectiveness of the Coagulation Process in the Treatment of Wastewater from the Foundry Industry
Autorzy:
Dawczak, Paulina
Dudziak, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/123257.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
foundry industry
wastewater treatment
coagulation
Opis:
The wastewater from the foundry industry contains both inorganic and organic pollutants. Their characteristic feature is the variability of the composition, which depends on the intensity of production in a given industrial plant or the combination of various pollutant streams. As part of the paper, the coagulation process was proposed for the treatment of selected wastewater from the foundry industry. The purpose of the research was to evaluate the effectiveness of coagulation depending on the concentration of pollutants in wastewater.
Źródło:
Journal of Ecological Engineering; 2019, 20, 6; 174-176
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Sedimentation Supported by Coagulation Process on Effectiveness of Separation of the Solid Phase from Wastewater Stream
Autorzy:
Maciołek, P.
Szymański, K.
Schmidt, R.
Powiązania:
https://bibliotekanauki.pl/articles/123962.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
coagulation
flocculation
separation
Opis:
The objective of this work was to test the impact of coagulant and flocculant at the stage of mechanical wastewater treatment on the wastewater treatment plant operation, performed in the A2O process. In this paper, the principles of correct conduct of coagulation in wastewater treatment have been discussed. It appears from the research performed that significant elimination of BOD5 such as 20÷30%, total suspended matter up to 90%, COD up to 50% and total nitrogen at 30% level was achieved supported by the coagulation process in the pre-settling tanks. Approximately 50% of phosphorus was eliminated after the mechanical part. Additionally, a significant impact of Superfloc flocculant on the effectiveness of the solid phase separation (activated sludge) in the secondary settling tank was noted under diversified flow conditions.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 81-87
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność oczyszczania ścieków w przydomowej hybrydowej oczyszczalni hydrofitowo-biologicznej
The efficiency of wastewater treatment with the household hybrid (biological-constructed wetland) wastewater treatment plant
Autorzy:
Bergier, T.
Włodyka-Bergier, A.
Powiązania:
https://bibliotekanauki.pl/articles/339038.pdf
Data publikacji:
2012
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
oczyszczalnie hydrofitowe
oczyszczanie ścieków
przydomowe oczyszczalnie
constructed wetlands
household wastewater treatment plant
wastewater treatment
Opis:
W artykule przedstawiono wyniki badań nad skutecznością usuwania zanieczyszczeń w przydomowej oczyszczalni ścieków komunalnych firmy Enko, zainstalowanej przy Urzędzie Gminy w Zawoi. Badaniom poddano ścieki surowe, ścieki po wstępnym oczyszczeniu i ścieki oczyszczone. Próbki pobierano co miesiąc, w okresie od listopada 2010 r. do czerwca 2011 r. Przeanalizowano zdolność usuwania w oczyszczalni Enkosystem substancji rozpuszczonych w postaci jonów (przewodność elektryczna właściwa), zawiesiny ogólnej, ogólnego węgla organicznego, BZT5, azotu ogólnego i fosforu ogólnego. Na podstawie uzyskanych wyników stwierdzono dużą, dochodzącą aż do 99%, skuteczność usuwania związków organicznych podatnych na biochemiczny rozkład (BZT5). Również dużą skuteczność usuwania zanieczyszczeń zaobserwowano dla zawiesiny ogólnej - od 74 do 95%. Ogólny węgiel organiczny również był usuwany ze stosunkowo dużą skutecznością (30-81%). Średnia skuteczność usuwania substancji rozpuszczonych w postaci jonów (mierzonych jako przewodność elektryczna właściwa) wynosiła 28%, natomiast fosforu ogólnego 41%. Najgorzej oczyszczalnia Enkosystem usuwała związki azotu - średnio o 27%. Oczyszczalnia Enkosystem pracowała prawidłowo, a wartości badanych wskaźników w zasadzie nie przekraczały wartości dopuszczalnych, zdefiniowanych w polskich przepisach prawnych.
The paper presents results of a study on the efficiency of a household hybrid wastewater treatment plant (WWTP) made by the Enko company, installed for the Town Hall in Zawoja. Samples of raw, pre-treated and treated sewage were analysed. The samples were taken every month, since November 2010 till June 2011. The following parameters were analysed: electrolytic conductivity, suspended solids, total organic carbon, BOD5, total nitrogen and total phosphorus. A high BOD removal efficiency of up to 99% was observed. Suspended solids were also removed with a high efficiency between 74% and 95%. Total organic carbon was removed with a relatively high efficiency (30-81%). The average removal efficiency for electric conductivity was 28%, and 41% for total phosphorus. The worst effects were noted for total nitrogen, the average removal efficiency of which was 27%. Enkosystem WWTP was characterized by proper performance, the values of analysed parameters did not in general exceed the standards defined by Polish legal regulations.
Źródło:
Woda-Środowisko-Obszary Wiejskie; 2012, 12, 1; 25-36
1642-8145
Pojawia się w:
Woda-Środowisko-Obszary Wiejskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the sewage treatment system of the Silesian agglomeration
Analiza systemu oczyszczania ścieków miasta aglomeracji Śląskiej
Autorzy:
Stankowska, P.
Standera, J.
Kwiatkowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/127491.pdf
Data publikacji:
2016
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
wastewater treatment plant
efficiency of wastewater treatment technology
oczyszczalnia ścieków
skuteczność technologii oczyszczania ścieków
Opis:
The construction of the technological treatment plant is closely related to the amount and physicochemical parameters of incoming sewage. The economic aspects and the principles of sustainable development also should be taken into account at the stage of sewage treatment plant construction planning. Moreover, in large cities, there is often greater number of sewage treatment plants, which should create an effective system for wastewater treatment. Municipal wastewater treatment system should not disturb the ecological balance of the area and cannot contribute to the deterioration of the living conditions of people (especially those living in the immediate vicinity of the sewage treatment plant). The paper compares the process lines of three wastewater treatment plants located in the city of Bytom: “Centralna” plant, “Miechowice” plant and “Bobrek” plant. The paper also compares the main indicators of the efficiency of the described wastewater treatment plants and the selected parameters of the sewage sludge. Based on the above data, an attempt was made to assess the proper operation of the sewage treatment system in the city of Bytom.
Budowa ciągu technologicznego oczyszczalni jest ściśle powiązana z ilością i parametrami fizykochemicznymi dopływających ścieków. Na etapie planowania należy rozważyć także kryteria zrównoważonego rozwoju oraz aspekty ekonomiczne. Ponadto, w dużych miastach na skuteczny system oczyszczania ścieków składa się często większa liczba oczyszczalni. Miejski system oczyszczania ścieków nie może zakłócać równowagi ekosystemowej danego obszaru ani przyczyniać się do pogorszenia warunków bytowania ludzi (szczególnie tych mieszkających w bezpośrednim sąsiedztwie oczyszczalni ścieków). W artykule porównano ciągi technologiczne trzech oczyszczalni ścieków znajdujących się na terenie miasta Bytom: Oczyszczalni „Centralna”, Oczyszczalni „Miechowice” oraz Oczyszczalni „Bobrek”. Zestawiono także główne wskaźniki efektywności oczyszczania oraz niektóre parametry osadu czynnego. Na podstawie powyższych danych podjęto próbę oceny prawidłowego funkcjonowania systemu oczyszczania ścieków w Bytomiu.
Źródło:
Proceedings of ECOpole; 2016, 10, 2; 511-516
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza procesu oczyszczania ścieków poprodukcyjnych w zakładzie SAPA Aluminium Trzcianka
Analysis of post-production wastewater treatment process in the SAPA Aluminium Trzcianka plant
Autorzy:
Ochowiak, M.
Sadowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/2071667.pdf
Data publikacji:
2012
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
oczyszczanie ścieków
anodowanie
wastewater treatment
anodizing
Opis:
W pracy przedstawiono wyniki badań doświadczalnych procesu oczysz-czania ścieków poprodukcyjnych w dziale anodowania zakładu SAPA Aluminium. W pracy wykonano szereg badań w celu ustalenia odpo-wiedniego czasu neutralizacji strumienia ścieków, a następnie wpływu różnych flokulantów na proces sedymentacji oraz na zawartość siarcza-nów w ściekach. Na podstawie wyników badań doświadczalnych sformułowano warunki zastosowania dostępnych surowców odpadowych, aby spełniały one w sposób stabilny normy ochrony środowiska zapisane w pozwoleniu wodno-prawnym.
The experimental results of post-production wastewater treatment process in the anodizing department of SAPA Aluminum plant are presented. Several tests for the determination of appropriate neutralization time of wastewater stream were carried out in the study. An influence of different flocculants on sedimentation process and a content of sulfates in wastewater were also established. The conditions of using available waste materials, satisfying stable environmental standards according to the license related to the water status permission, were formulated on the experimental bases.
Źródło:
Inżynieria i Aparatura Chemiczna; 2012, 3; 65-67
0368-0827
Pojawia się w:
Inżynieria i Aparatura Chemiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intensification of the Wastewater Treatment Process of a Bitumen Plant with the Production of Recycled Water
Autorzy:
Serikbayeva, Akmaral
Taizhanova, Lyailim
Suleimenova, Botagoz
Altybayeva, Zhansaule
Seidalieva, Leila
Powiązania:
https://bibliotekanauki.pl/articles/2202366.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
bitumen
oil
plant
distillation
Opis:
The increasing demand for water with the industrialisation of the world is becoming a major problem as there is a water shortage all over the earth. Therefore, the water problem is one of the important problems that need to be effectively solved. This paper presents the results of research on wastewater treatment of bitumen production in the Mangystau region, which after physical and chemical treatment methods is sent to natural evaporation fields. As a result of research work, a method of wastewater treatment of bitumen plant was developed, which includes two stages: distillation of water on the solar plant and ozonation in order to oxidize volatile organic matter. Distillation to obtain primary treated water of 70–75% volume was carried out at 33–37 °C ambient temperature and 15–30 kPa rarefaction, at the same time COD of water was reduced by 68%.
Źródło:
Journal of Ecological Engineering; 2023, 24, 2; 295--301
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Removal of lindane from wastewater using liquid-liquid extraction process
Autorzy:
Patil, I. D.
Patil, Y. S.
Pangarkar, B. L.
Powiązania:
https://bibliotekanauki.pl/articles/778239.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
lindane
extraction
ternary diagram
wastewater treatment
Opis:
Pesticide pollution is a serious problem being faced. Harmful levels of pesticides are found in the water which is used for daily purposes. In the event of such a scenario, this paper presents a working solution for bringing down the Pesticide levels in the water to safe levels by using the method of liquid-liquid extraction. The experimental liquid-liquid equilibrium data on pesticide-water-solvent ternary mixtures at a temperature of 288.15 K are presented here. The pesticide used here is a chlorinated hydrocarbon called lindane found in the water (underground, land), beverages and foods. The solvents used are Petro-ether-Chloroform (1:1), Ethylene di chloride and n-hexane. The equilibrium generation diagram, triangular diagram, tie lines and bimodal curves as well as the distribution coefficient have been determined and reported. The petro-ether-chloroform was found to be the right solvent for the separation of lindane from wastewater because of high selectivity (25.36) and distribution coefficient (4). The extraction process is simulated into ‘C’ language.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 3; 81-84
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Usuwanie mikrozanieczyszczeń o estrogenicznej aktywności biologicznej w procesie nanofiltracji
Removal of endocrine disrupting compounds by means of nanofiltration
Autorzy:
Bohdziewicz, J.
Kamińska, G.
Grübel, K.
Powiązania:
https://bibliotekanauki.pl/articles/126707.pdf
Data publikacji:
2015
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
EDCs
nanofiltracja
fouling
nanofiltration
wastewater treatment
Opis:
Celem niniejszej pracy było zastosowanie procesu nanofiltracji do usuwania mikrozanieczyszczeń z rzeczywistych ścieków komunalnych oczyszczonych metodą osadu czynnego. Zastosowane membrany różniły się graniczną masą molową i polimerem, z jakiego je wytworzono. Filtrację membranową realizowano w ciśnieniowym urządzeniu przystosowanym do prowadzenia procesu w układzie filtracji jednokierunkowej (dead-end), na membranie o powierzchni czynnej 144 cm2. W zależności od parametrów operacyjnych procesu (ciśnienie transmembranowe) i rodzaju polimeru membranotwórczego współczynniki retencji badanych związków kształtowały się w zakresie wartości 10-90%. W badaniach analizowano również wpływ zjawiska foulingu membran na zmianę ich właściwości powierzchniowych i charakteru kwasowo-zasadowego.
The aim of this study was to the remove micropollutants with biological estrogenic activity from real effluent. Four types of nanofiltration membranes were used, differ in molecular weight cut-off and polymer material. The nanofiltration process was carried out in pressure installation enabling conduction of the process in the dead-end mode on membrane area of 144 cm2. In dependence of operational parameters of the process (the transmembrane pressure), and type of membrane, retention coefficients of the tested compounds were in the range 10-90%. The study also determined the impact of the fouling phenomenon of membranes on change their surface characteristics.
Źródło:
Proceedings of ECOpole; 2015, 9, 1; 171-177
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Efficiency of Landfill Leachate Treatment Using the Fenton’s Reagent
Autorzy:
Koc-Jurczyk, J.
Jurczyk, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/124411.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
landfill leachate
Fenton's reagent
Opis:
In this studies the influence of the dose and ratio of chemical reagents (Fe2+ and H2O2) on the efficiency of COD removal and changes of BOD5/COD ratio in landfill leachate was analysed. The molar Fe2+/H2O2 ratio was lower than 1 and amounted to: 1:10, 1:5, 1:3, three research series with 1; 2.5 and 5 g/L Fe2+ concentration. A higher efficiency in removing BOD than COD, and therefore the decrease of BOD5/COD ratio in effluent was stated. The efficiency of COD removal from leachate was from 58.34% (Fe2+ 0.5 g/L, Fe22+/H2O2 1:5) to 8.33% (Fe2+ = 0.1 g/L, Fe2+/H2O2 = 1:10), while the efficiency of BOD removal ranged from 62 to 77%. With the molar ratio Fe2+/H2O2 equal 1:5 the BOD5/COD ratio was the largest for each of the analysed Fe2+ doses. The lowest BOD5/COD ratio was observed for the Fe2+ dose 0.1 g/L and molar ratio of reagents 1:3.
Źródło:
Journal of Ecological Engineering; 2015, 16, 3; 70-76
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability Evaluation of Wastewater Treatment Plant Impact on the Receiving Waters
Autorzy:
Andraka, Dariusz
Powiązania:
https://bibliotekanauki.pl/articles/125206.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
reliability
wastewater treatment
wastewater receiver
water purity class
Opis:
The paper presents the results of the study on reliability of the "Wastewater Treatment Plant (WWTP) – Receiver" system, using different models for predicting probability that the river will stay in the required purity class after receiving the discharge from a WWTP. A probabilistic model based on the total probability theorem and Monte Carlo (MC) simulations of the water quality below the wastewater discharge were used. The results show that probabilistic model generates lower values of "WWTP-Receiver" system’s reliability than the MC simulations. The results from the MC model may give more realistic values, being able to reflect the stochastic nature of the process, also showing that for the overall reliability of the "WWTP-Receiver" system – the quality of the receiver is a more sensitive factor than the WWTP’s reliability.
Źródło:
Journal of Ecological Engineering; 2019, 20, 8; 226-231
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prawne aspekty funkcjonowania przydomowych oczyszczalni ścieków
Legal aspects of sewage treatment plants
Autorzy:
Wawrentowicz, D.
Ignatowicz, G.
Sadowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/908489.pdf
Data publikacji:
2013
Wydawca:
Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:
przydomowe oczyszczalnie ścieków
prawne aspekty przydomowych oczyszczalni ścieków
household wastewater treatment plant
legal aspects of the wastewater treatment plants
standards of the wastewater treatment plants
Opis:
W ustawie – Prawo Wodne zapisano regulację prawną dotyczącą udoskonalenia odprowadzania ścieków do wód gruntowych. W Polsce ogromna liczba budynków mieszkalnych czy też gospodarczych jest rozproszona, co utrudnia budowanie zbiorczych oczyszczalni ścieków. Osoby posiadające takie budynki powinny budować przydomowe oczyszczalnie ścieków. Gminy coraz częściej ustawowo proponują dopłaty do tego typu inwestycji, co z jednej strony zwalnia ich z obowiązku budowy zbiorowych oczyszczalni, a drugiej zabezpiecza troskę o ochronę środowiska na własnym terenie. Każda oczyszczalnia powinna spełniać zarówno wymogi formalne jak też wymogi ochrony środowiska.
Owners of scattered households are more often finding out building household wastewater treatment plants useful. Polish legislation has been fitted to the European Union’s law in this aspect, however there is a lack of appropriate tools to control over newly build household wastewater treatment plants. Local governments shows more financial support for those households, which are going to build household wastewater treatment plants, and at the same way making the contribution in protecting the environment. Rules of the building law, and the water law as equal are, clearly require certain responsibilities on households on the range of those types of wastewater treatment plants. Rules are making requirements for manufacturers of those wastewaters very clearly. Those must have reach minimal quality standards, every reservoir must go under proper certification. If all those parameters are going to be respected by the manufactureres and the users, so as local governments, then the environmental protection in this matter will be uphold.
Źródło:
Ekonomia i Środowisko; 2013, 3; 117-125
0867-8898
Pojawia się w:
Ekonomia i Środowisko
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of Dairy and Domestic Wastewater Treatment and Technological Reliability of the Wastewater Treatment Plant in Michów, Poland
Autorzy:
Zawadzka, Beata
Siwiec, Tadeusz
Marzec, Michał
Powiązania:
https://bibliotekanauki.pl/articles/2027778.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
domestic wastewater
dairy wastewater
wastewater treatment effectiveness
technological reliability
Opis:
The study aimed to assess the operation of the mechanical and biological wastewater treatment plant in Michów (Poland) in terms of the effectiveness of removing contaminants from mixed wastewater (dairy and domestic) and technological reliability. The wastewater treatment plant is owned by the Dairy Cooperative “Michowianka”. It is intended to treat mixed sewage, consisting of technological and sanitary sewage as well as part of rainwater from the plant, domestic wastewater supplied by a sewerage system from Michów, and wastewater delivered from septic tanks. In 2017 and in the first quarter of 2018, the permeate from the whey thickening process was also sent to the treatment plant. The period 2017-2021 was covered by the analysis. The analysis included the indicators from the fundamental group (TSS, BOD5, COD), biogenic indices (total phosphorus, total nitrogen, and ammonium nitrogen). The applied technology ensured the removal of total suspended solids, BOD5, and COD at the level of over 96%. Total phosphorus was removed with an average efficiency of 91%. Slightly lower effects were found in the elimination of total nitrogen – 78.5% on average, while the ammonium nitrogen removal rate was 88% on average. Due to the high efficiency of the facility, the values of the standard contamination indicators at the outflow, as a rule, met the requirements specified in the water permit. The technological reliability of the wastewater treatment plant in Michów, determined by the Weibull method, was at a high level, usually exceeding 90%. The reliability analysis shows that the facility in Michów has a high capacity to treat wastewater to the extent required for the wastewater receiver, and that the treated wastewater discharge does not cause negative changes in the environment. It indicates a high probability of obtaining the wastewater quality at the outflow from the treatment plant meeting the water permit requirements.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 141-151
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Condition of the Sanitary Infrastructure in the Ryki District in Poland and the Need for its Development
Autorzy:
Jóźwiakowska, Karolina
Micek, Agnieszka
Kanios, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1839635.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
district
septic tank
household wastewater treatment plants
collective wastewater treatment plants
water supply network
sewage system
Opis:
The aim of this paper was to present the current state and the need for development of the sanitary infrastructure in the communes of the Ryki District located in the Lublin Voivodeship. The Ryki District encompasses 1 urban Commune – Dęblin, 1 urban-rural Commune – Ryki and 4 rural communes: Kłoczew, Nowodwór, Stężyca and Ułęż. The paper is based on the data from the surveys conducted in all the afore-mentioned communes in 2016. In the whole district on average 71.3% of the population used the water supply network, while 42% of the inhabitants were able to discharge wastewater to the sewage system. Within the area of the Ryki District, 5 collective wastewater treatment plants with a capacity exceeding 5 m3/d functioned in 2016. The households which were not connected to the sewage network discharged wastewater mainly to non-return tanks. About 440 household sewage treatment plants were found in the surveyed communes. The overwhelming majority of such small objects in the discussed district were activated sludge systems (92%). The research carried out in 2016 proved a strong need to develop the current state of the sanitary infrastructure in the Ryki District. A particular emphasis should be placed on the wastewater management by connecting the inhabitants of urban areas to a joint sewage disposal system. Ecological awareness must be raised so as to encourage people to invest in household wastewater treatment plants, which should be used in the areas with scattered development.
Źródło:
Journal of Ecological Engineering; 2021, 22, 4; 256-264
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Condition of the Sanitary Infrastructure in the Bialski District in Poland and the Need for its Development
Autorzy:
Jóźwiakowska, Karolina
Marzec, Michał
Powiązania:
https://bibliotekanauki.pl/articles/124925.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
district
septic tank
household wastewater treatment plants
collective wastewater treatment plants
water supply network
sewerage system
Opis:
The aim of this paper was to present the current state and the need for development of the sanitary infrastructure in the communes of the Bialski District located in the Lublin Voivodeship. The Bialski District encompasses 2 urban communes: Miedzyrzec Podlaski and Terespol and 17 rural communes: Biała Podlaska, Drelów, Janów Podlaski, Kodeń, Konstantynów, Leśna Podlaska, Łomazy, Międzyrzec Podlaski, Piszcząc, Rokitno, Rossosz, Sławatycze, Sosnówka, Terespol, Tuczna, Wisznice and Zalesie. The present paper uses the data from the surveys conducted in these communes in 2016. On average, 79.2% of the population used the water supply system in the surveyed communes, while 39.4% of the inhabitants had the possibility of discharging wastewater to the sewerage system. In the area of the communes, there were 20 collective, mechanical and biological wastewater treatment plants with a capacity exceeding 5 m3/d. The households which were not connected to the wastewater network, discharged wastewater mainly to non-return tanks. In the surveyed communes, there were 4437 household wastewater treatment plants. Most of them (above 80%) were the systems with infiltration drainage, which do not ensure high efficiency of pollutants removal and may even contribute to the degradation of the groundwater quality. In order to solve the existing problems of wastewater and water management occurring in the communes where the Bialski District is located, it is necessary to further develop collective wastewater systems and equip the areas characterized by dispersed housing with highly efficient household treatment plants, e.g. constructed wetlands.
Źródło:
Journal of Ecological Engineering; 2020, 21, 5; 155-163
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wastewater reuse
Autorzy:
Wilas, Janusz
Draszawka-Bołzan, Beata
Cyraniak, Emil
Powiązania:
https://bibliotekanauki.pl/articles/1119300.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
small wastewater treatment plants
technology selection
wastewater reuse
Opis:
Once freshwater has been used for an economic or beneficial purpose, it is generally discarded as waste. In many countries, these wastewaters are discharged, either as untreated waste or as treated effluent, into natural watercourses, from which they are abstracted for further use after undergoing "self-purification" within the stream. Through this system of indirect reuse, wastewater may be reused up to a dozen times or more before being discharged to the sea. Such indirect reuse is common in the larger river systems of Latin America. However, more direct reuse is also possible: the technology to reclaim wastewaters as potable or process waters is a technically feasible option for agricultural and some industrial purposes (such as for cooling water or sanitary flushing), and is a largely experimental option for the supply of domestic water. Wastewater reuse for drinking raises public health, and possibly religious, concerns among consumers. The adoption of wastewater treatment and subsequent reuse as a means of supplying freshwater is also determined by economic factors. Human excreta and wastewater contains useful materials. These are water, organic carbon and nutrients and should be regarded as a resource. In their natural cycles, they are broken down by micro-organisms and become accessible to plants and animals, thus sustaining natural ecosystems. When improperly disposed, these substances can cause pollution. This is because the organic materials exert oxygen demand, and the nutrients promote algal growth in lakes, rivers and near-shore marine environments. Human excreta and wastewater also contain pathogens. Reuse of the wastes must ensure that public health is maintained. Planned reuse is the key to wastewater reuse. Planning for reuse ensures that public health and protection of the environment are taken into account. Reuse of treated wastewater for irrigation of crops, for example, will need to meet (i) standards for indicator pathogens, and (ii) plant requirement for water, nitrogen and phosphorus. WHO and others have developed standards for reuse of wastewater for various purposes. Further details of these standards can be found in the Regional Overviews in the Source Book, published by IWA and IETC. It must be pointed out, however, that requirements for water and nutrients are plant-specific and site-specific (dependent on soil type and climate), and information on these requirements need to be obtained from local information sources.
Źródło:
World News of Natural Sciences; 2016, 5; 33-41
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania dobowej i sezonowej zmienności składu ścieków mleczarskich
Research of daily and seasonal variability of dairy wastewater composition
Autorzy:
Struk-Sokołowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/400614.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ścieki mleczarskie
ładunek zanieczyszczeń
oczyszczanie ścieków
oczyszczalnia komunalna
dairy wastewater
pollutant load
wastewater treatment
municipal wastewater treatment plant
Opis:
Celem badań było wykazanie zmienności składu ścieków mleczarskich, dopływających do oczyszczalni komunalnej w ciągu doby oraz w różnych porach roku. Analizom poddano ścieki z zakładu przetwórstwa mleka zlokalizowanego w Polsce północno-wschodniej. Określono charakterystykę produkcji zakładu przetwórstwa mleka, odprowadzającego ścieki mleczarskie do oczyszczalni komunalnej oraz ilości i ładunki ścieków mleczarskich i komunalnych. Analizy składu ścieków mleczarskich dokonywano w czerwcu oraz listopadzie 2014 roku. W każdym miesiącu wykonano 4 serie pomiarowe. Próbki ścieków mleczarskich podlegały analizom 8 razy w ciągu doby. Na podstawie wyników badań wyznaczono zależności pomiędzy wskaźnikami zanieczyszczeń organicznych oraz biogennych. Uzyskane wyniki porównano z podanymi w literaturze. Ścieki mleczarskie z Olecka charakteryzują się dużą zmiennością składu w ciągu doby, co może negatywnie oddziaływać na proces oczyszczania w oczyszczalni komunalnej. Stwierdzono różnice w ilości związków organicznych w ściekach mleczarskich w okresie letnim i jesiennym. Zdecydowanie wyższymi wartościami wskaźników BZT5 i ChZT charakteryzowały się ścieki w okresie wegetacyjnym.
Purpose of the study was to demonstrate the variability of dairy wastewater flowing into municipal WWTP per day and in different seasons. Research was carried out on effluent from Olecko milk processing plant located in north-eastern Poland. Characteristics of milk processing plant sewage discharge to the municipal treatment plant and the amount and loads of dairy and municipal wastewater was presented. The analysis of the qualitative composition of dairy wastewater was carried out in June and November 2014 year. Every month 4 series of measurements were performed and dairy effluent samples were analyzed 8 times a day. Based on the test results the relationship between indicators of organic pollutants and nutrients was determined. The results were compared with those presented in literature. Dairy wastewater from Olecko is characterized by varying composition during the day, which may negatively affect the purification process of municipal wastewater. There were differences in the amount of organic compounds in the dairy wastewater in summer and autumn. Significantly higher values of BOD5 and COD indicators were found in the sewage during the vegetation season.
Źródło:
Inżynieria Ekologiczna; 2016, 47; 74-81
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pollutants Removal Efficiency in The Hydroponic Lagoon of The Wastewater Treatment Plant
Autorzy:
Jakubaszek, Anita
Powiązania:
https://bibliotekanauki.pl/articles/27314840.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
wastewater treatment plant
wastewater treatment
hydroponic lagoon
mechanical-biological wastewater
oczyszczalnia ścieków
oczyszczanie ścieków
laguna hydroponiczna
oczyszczanie mechaniczno-biologiczne
Opis:
Wastewater treatment in semi-natural systems, such as a hydroponic lagoon operating as the third stage of treatment, is becoming more and more popular because of the efficiency of organic matter and nutrient removal. The article presents an analysis of the efficiency of pollutant removal at the mechanical-biological wastewater treatment plant in Gronów with a capacity of Qd = 1125m3/day and a load of 9375 PE. The wastewater treatment plant operates on the basis of activated sludge and biomass settling technology on submerged flow beds. The treatment plant is characterized by a very high variability of wastewater inflow during the year due to periodic inflow of wastewater from tourist resorts in Łagów. The average efficiency of removing pollutants from wastewater was: BOD5 - 98.5%, COD - 92.8%, total suspended solids - 93.2%, total nitrogen - 86.1% and total phosphorus - 69.5%. The study showed that the use of a hydroponic lagoon in the technological system improved the efficiency of wastewater treatment by 1.7% for BOD5, 0.9% - COD, total suspended solids by 4.3%, 6.4% for total nitrogen and total phosphorus - 3.3%.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 4; 293--305
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena poprawności funkcjonowania miejskiej oczyszczalni ścieków w Ostrowcu Świętokrzyskim
Validation of the operations of municipal wastewater treatment plant in Ostrowiec Świętokrzyski
Autorzy:
Długosz, J.
Gawdzik, J.
Powiązania:
https://bibliotekanauki.pl/articles/357304.pdf
Data publikacji:
2011
Wydawca:
Politechnika Śląska
Tematy:
oczyszczalnia ścieków
Ostrowiec Świętokrzyski
wastewater treatment plant
Opis:
W pracy przedstawiono ocenę funkcjonowania jednej z największych oczyszczalni ścieków w województwie świętokrzyskim - oczyszczalni ścieków komunalnych w Ostrowcu Św. Przedstawiono charakterystykę procesów jednostkowych oraz dokonano oceny efektywności systemu oczyszczania ścieków na oczyszczalni. Autorzy określili stopień wykorzystania przepustowości oczyszczalni w odniesieniu do: ChZT, BZT5, zawiesiny ogólnej, azotu ogólnego oraz fosforu ogólnego. W odniesieniu do wszystkich ładunków zanieczyszczeń omawiana oczyszczalnia ścieków pracuje jako niedociążona - w największym stopniu w przypadku ładunku BZT5 (ωBZT5=58,9%). Obiekt uzyskuje bardzo dobre wyniki w oczyszczaniu ścieków, które zgodne są z dopuszczalnymi wartościami zawartymi w Rozporządzeniu Ministra Środowiska z dnia 24 lipca 2006 oraz z pozwoleniem wodno-prawnym. Zawartości wskaźników zanieczyszczeń w oczyszczonych ściekach są zwykle trzy razy niższe od dopuszczalnych. Podobnie, analizując wartości średniodobowego niskiego przepływu rzeki oraz średniej dobowej ilości ścieków odprowadzanej do odbiornika można stwierdzić, iż rzeka Kamienna jest odpowiednim odbiornikiem dla oczyszczonych ścieków.
The paper presents an evaluation of functioning of one of the largest sewage treatment plant in Świętokrzyskie Province - wastewater treatment plant near Ostrowiec Św. The characteristics of unit processes and assessment of the effectiveness of the sewage treatment systems was done in this work. Authors determined the degree of utilization of plant capacity in relation to: COD, BOD, suspended solid, total nitrogen and total phosphorus. For all loads of pollutants in question of works as a sewage treatment plants is unload - in the case of BOD in particular (ωCOD=58,9%). Very good results of wastewater treatment, which complies with the limit values laid down in the Regulation of the Minister of Environment of 24 July 2006 and in the water-legal permission was achieved. Content indicators of pollution in treated wastewater are typically three times lower than the limit. Similarly, by analyzing the average daily low flow of the Kamienna River and the average daily volume of wastewater discharged into the receiver can be concluded, that Kamienna river is a suitable receiver for the treated wastewater.
Źródło:
Archiwum Gospodarki Odpadami i Ochrony Środowiska; 2011, 13, 4; 1-11
1733-4381
Pojawia się w:
Archiwum Gospodarki Odpadami i Ochrony Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the Potential of Opuntia Ficus-Indica Cladodes as a Natural Flocculant for Wastewater Treatment through Simple Procedures
Autorzy:
Trindade, Sofia
Rouxinol, Maria Inês
Nabais, João
Agulheiro-Santos, Ana Cristina
Powiązania:
https://bibliotekanauki.pl/articles/1838408.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
turbidity
wastewater treatment
flocculation
lyophilization
mucilage extraction
Opis:
Nowadays there is a search for new alternatives to replace harsh and expensive chemical methods to wastewater treatments. The common methods include the usage of chemicals that negatively affect the environment and the human health. The cladodes of Opuntia ficus-indica (L.) Mill have a great potential for use in innovative, cheap, renewable and eco-friendly water treatment due to their flocculant properties. In this work, different water treatments including fresh cladodes, lyophilized cladodes and the material obtained through mucilage extraction were tested. The turbidity of the water was measured, and it was concluded that the use of 60 g of small pieces of fresh cut cladodes was the method with the best results, reaching 4 NTU of turbidity. It confirmed the ability of O. ficus-indica (L.) Mill cladodes to promote the flocculation of clay in water, enabling to turn the unused material waste into a useful raw material.
Źródło:
Journal of Ecological Engineering; 2021, 22, 5; 249-257
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Future Performance Study of Al-Muamirah Wastewater Treatment Plant Applying a Statistical Analysis
Autorzy:
Nasir, Mohsin J.
Noori, Nazik A.
Kariem, Nagam O.
Powiązania:
https://bibliotekanauki.pl/articles/2027893.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
future performance
statistical analysis
wastewater treatment plant
Opis:
Wastewater management is considered to be a great challenge, particularly in towns and cities with rapidly growing population. The study aimed to assess the Al-Muamirah WW treatment plant (WWTP), located in the Babylon governorate of Iraq, in terms of its hydraulic loading as a quality performance indicator. The findings showed that there will be a significant deficit in the capacity of the plant of 20%, 32% and 37% in the year of 2024, and will cumulatively arise in 2030 to become 26%, 41.5% and 47.7% for suggested growth rates of 1.27%, 2.5% and 3.95%, respectively. The outcomes of expected amounts of daily discarded wastewater in terms of estimated population were analyzed using the ANOVA test and it was found that the population growth ratio has a significant impact on the generated inflow, as f (2,30) = 3.713, and p= 0.019 < 0.05.
Źródło:
Journal of Ecological Engineering; 2021, 22, 10; 264-268
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Affecting the Performance of Double Chamber Microbial Fuel Cell for Simultaneous Wastewater Treatment and Power Generation
Autorzy:
Khan, M.R.
Amin, M.S.A.
Rahman, M.T.
Akbar, F.
Ferdaus, K.
Powiązania:
https://bibliotekanauki.pl/articles/779340.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
catholyte
COD
Microbial Fuel Cell
wastewater treatment
Opis:
Electricity generation from the readily biodegradable organic substrate (glucose) accompanied by decolorization of azo dye was investigated using a two-chamber microbial fuel cell (MFC). Batch experiments were conducted to study the effect of dye and substrate concentration on MFC performance. Electricity generation was not signifi cantly affected by the azo dye at 300 mg/L, while higher concentrations inhibited electricity generation. The chemical oxygen demand (COD) removal and decolorization of dye containing wastewater used in the MFC were studied at optimum operation conditions in anode and cathode, 57% COD removal and 70% dye removal were achieved. This study also demonstrated the effect of different catholyte solutions, such as KMnO4 and K2Cr2O7 on electricity generation. As a result, KMnO4 solution showed the maximum electricity generation due to its higher standard reduction potential.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 1; 7-11
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring and Biochemical Treatment of Wastewater
Autorzy:
Dychko, Alina
Remez, Natalya
Kyselov, Volodymyr
Kraychuk, Serhii
Ostapchuk, Nataliia
Kniazevych, Anna
Powiązania:
https://bibliotekanauki.pl/articles/123219.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biochemical wastewater treatment
biogas
fractals
monitoring
reliability
Opis:
The present paper provides the methodology for the environmental monitoring of natural and engineering wastewater systems, which involves the determination of the dichotomous fractal structure of the measuring network, the boundaries of the range and the density of pollution on the Peano and Koch curves, based on the data of the measuring network and the corresponding interpolation and smoothing algorithms, as well as determination of the dynamics of the pollution range using the Bayesian theorem. On the basis of the theory of fractals and the theory of sets, the developed algorithms for monitoring allow determining the structure of the measuring network taking into account the features of the controlled range and the sets of fractal isolines of any configuration with a given accuracy of reflection, which allows predicting the change in the composition of the effluent that comes to the reservoirs from the landscapes and improving the functioning of the equipment and environmental safety of water in general. The established dependence of biogas productivity on the different methods for destruction of the active sludge microorganisms allows determining that the maximum output of biogas occurs when applying the chemical destruction of part of the sludge.
Źródło:
Journal of Ecological Engineering; 2020, 21, 4; 150-159
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reliability of a Collective Wastewater Treatment Plant
Autorzy:
Bugajski, P.
Chmielowski, K.
Kaczor, G.
Powiązania:
https://bibliotekanauki.pl/articles/125059.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment plant
technological reliability
Weibull theory
Opis:
The paper discusses technological reliability of a collective wastewater treatment plant (WTP). The WTP capacity expressed as population equivalents (PE) was 22,500. The research was conducted in 2013 and 2014 and it involved the collection and physical and chemical analysis of 101 samples of raw and treated sewage. Reliability analysis was based on Weibull reliability theory. Reliability of retaining organic compounds defined as BOD5 was 68%, and for biogenic compounds, such as total nitrogen and total phosphorus, it was 92% and 88%, respectively.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 143-147
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Service Characteristics of Two Town’s WWTP
Autorzy:
Jurik, L.
Kaletova, T.
Sedmakova, M.
Balazova, P.
Cervenanska, A.
Powiązania:
https://bibliotekanauki.pl/articles/125312.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater
wastewater treatment plant
pollutants
inflow
dry weather flow
Opis:
The study presents variation of wastewater inflow and its components during a year. We considered a situation with and without precipitation. Two renovated wastewater treatment plants were selected to analyse the available parameters and relation between them. Both wastewater treatment plants served to treat domestic and industrial wastewater with similar characteristics. One of them is only for the town purposes; second one serves for the surrounding villages. The relation between the concentration of pollutants and a flow of wastewater is very low. The correlation and a coefficient of the determination between pollutants were over 0.5.
Źródło:
Journal of Ecological Engineering; 2017, 18, 3; 61-67
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rozkład pestycydów metodą Fentona z wykorzystaniem MgO2
Research on Pesticide Degradation with Fenton Method Using MgO2
Autorzy:
Skoczko, I.
Powiązania:
https://bibliotekanauki.pl/articles/1819039.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
rozkład pestycydów
metoda Fentona
wastewater treatment
removal
Opis:
The aim of the paper are experiments on old redundant chemical plant protection products degradation. The goal of research is efficiency analysis of chosen, out-dated pesticides by the Fenton-like method with MgO2 as an alternative source of H2O2, an optimal dose of MgO2 choice and possibility of method’s using to numerous toxic preparation. The results of experiments on efficiency of the Fenton-like method to utilization of chlorotalonil (included in the pesticide Bravo 500 SC), gliphosat (as the active substance of the herbicideRoundap 360 SL), mancozeb (the main compound of the fungicide DithaneNeoTec) and finally the mix of pesticides are shown in graphs let us notice that in the each case the utilization’s effect reaches the level of 96.0%, what might be the proof that the Fenton reagent is enough strong and very useful to pesticide degradation.On the other hand Fenton-like method in described in this article conditions may generate relatively high costs of capital expenditure. This conclusion let us continue experiments and look for other equally efficient but cheaper method.
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 2; 1460-1473
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advanced treatment of municipal wastewater in nanofiltration. Effect of membranes and operating parameters on performance
Pogłębione oczyszczanie ścieków w nanofiltracji. Wpływ membrany i warunków prowadzenia procesu na jego efektywność
Autorzy:
Bohdziewicz, J.
Kamińska, G.
Peszke, S.
Powiązania:
https://bibliotekanauki.pl/articles/126506.pdf
Data publikacji:
2013
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
EDCs
nanofiltration
wastewater treatment
nanofiltracja
oczyszczanie ścieków
Opis:
In recent years, increasing attention is focused on the presence of endocrine disrupting chemicals (EDCs) in the aquatic environment that degrade its quality. These substances and derivatives of their incomplete oxidation, even at low concentrations discharge with effluent streams into natural reservoirs, strongly degrade water quality and pose a serious threat to aquatic ecosystems. Among EDCs, which presence even in trace amount is adverse for biological equilibrium in aquatic environment to which belong inter alia xenoestrogens (ie bisphenol A). The aim of this study was to polish wastewater constituting effluent from municipal WWTP in the nanofiltration process. Two types of membranes were used, differ in molecular weight cut-off and material (cellulose acetate, polyethersulphone). The nanofiltration process was carried out in pressure installation enabling conduction of the process in the dead-end mode on membrane area of 0.44 m2. Polishing effectiveness was evaluated on the base of the reduction degree of typical pollution indicators (COD, TOC, phenolic compounds, total nitrogen) and bisphenol A. Obtained results show that removal efficiency of phenolic compounds in case of applied membranes was comparable. Overall it was found that membranes characterized of diversified hydraulic permeability and resistance to fouling, what constitute important factor during exploitation of membrane processes.
Celem niniejszej pracy było pogłębione oczyszczenie ścieków rzeczywistych stanowiących odpływ z komunalnej oczyszczalni ścieków w procesie nanofiltracji. Zastosowane membrany nanofiltracyjne różniły się graniczną masą molową i materiałem, z jakiego je wykonano (octan celulozy i polieterosulfon). Proces filtracji membranowej odbywał się w ciśnieniowym urządzeniu przystosowanym do prowadzenia procesu w układzie filtracji jednokierunkowej (dead-end), na membranie o powierzchni czynnej 0,44 m2. Efektywność procesu doczyszczania została określona na podstawie stopnia obniżenia bisfenolu A i typowych wskaźników zanieczyszczeń (COD, TOC, IC (węgiel nieorganiczny), Nog.). Uzyskane wyniki wskazują, że stopień usuwania mikrozanieczyszczeń na badanych membranach był porównywalny. Badane membrany nanofiltracyjne charakteryzowały się zróżnicowaną wydajnością hydrauliczną i odpornością na foulingu, co jest istotne z punktu widzenia eksploatacji procesów.
Źródło:
Proceedings of ECOpole; 2013, 7, 2; 467-472
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological Quality of Indoor and Outdoor Air in a Municipal Wastewater Treatment Plant – A Case Study
Autorzy:
Staszowska, Amelia
Powiązania:
https://bibliotekanauki.pl/articles/2027817.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
microbial air quality
wastewater treatment plant
bioaerosol
Opis:
Wastewater treatment plants (WWTPs) have been recognized as a source of odors and microbial pathogens to the outdoor air. The results of many studies revealed that high amounts of microorganisms are not only present in the stream of wastewater or sludges but also in the bioaerosols that are generated during the different stages of the wastewater treatment. Hence, possible migration of biological contaminants into the interiors cannot be excluded. However, there is a knowledge gap in an assessment of the microbiological indoor air quality of the facilities located at WWTPs. The aim of this study was to evaluate the level of outdoor microbial air contamination upon the indoor environment based on the determined outdoor to indoor (O/I) ratios. The sampling of airborne bacteria and fungi was conducted in three replications with the sedimentation and impaction method, during a one-year survey in ten technological and office buildings as well as their vicinity, at the municipal wastewater treatment plant of Lublin (Poland). Moreover, the cleanliness of hand contact surfaces in staff rooms was examined (Rodac plates). Additionally, API identification of bacteria and fungi was carried out. The highest concentration of total bacteria count (3617 CFU/$m^3$) and fungi in bioaerosols (5386 CFU/$m^3$) was detected in the air around the sewage pumping station, close to the aeration tanks. P. fluorescens was found in the air around the grit chamber (78 CFU/$m^3$). The majority of the examined indoor air samples were characterized with different levels of microbiological contamination – from non-polluted to moderately polluted. The number of total bacteria counts ranged from 180 to 4679 CFU/$m^3$. The highest estimated indoor fungi concentration was 4022 CFU/$m^3$. The controlled surfaces were mostly contaminated with the Actinomycetes and Coliform bacteria. No Salmonella sp. were detected. The bacteria from the Enetrobacteriaceae family were commonly isolated from the indoor and outdoor air samples. The obtained data can be used to devise further guidelines facilitating control and management of WWTP to avoid or minimize the staff exposure.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 185-190
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Compositional analysis of the sewage incoming to and discharged from the sewage treatment plant in Kolbuszowa Dolna
Autorzy:
Chmielowski, K.
Bugajski, P.
Kaczor, G.
Powiązania:
https://bibliotekanauki.pl/articles/123438.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
sewage biodegradation
wastewater treatment plant
sewage composition
Opis:
The paper presents the compositional analysis of sewage supplied to and discharged from the wastewater treatment plant in Kolbuszowa Dolna in the Subcarpathian region. The analysis was based on three basic indicators of sewage pollution (BOD5, CODCr, total suspended solids) and two biogenic indicators (total nitrogen and total phosphorus). The composition of sewage was studied in the years 2010–2015. Basic descriptive statistics for the values of the analyzed indicators of sewage pollution were summarized and the obtained results were interpreted. The study showed that the sewage was susceptible to biological treatment. Descriptive statistics for the relationship between the following indicators were presented: CODCr/BOD5, BOD5/Ntot, BOD5/Ptot. The collected results indicate high variability of the composition of sewage entering the studied facility. The coefficients of variation for the values of basic indicators (BOD5, CODCr, total suspended solids) in the raw sewage were similar and amounted to Wn = 0.45 while for total nitrogen it was Wn = 0.33 and for total phosphorus Wn = 0.40. The analysis of the collected material showed that sewage entering the treatment plant was readily biodegradable. On the other hand, the treated sewage was characterized by low values of the analyzed indicators, much below the permissible values provided by the water permit. The raw sewage was divided into five groups depending on the concentration of each pollution indicator. The number of raw sewage samples was determined for each group of the analyzed pollution indicator concentrations.
Źródło:
Journal of Ecological Engineering; 2016, 17, 5; 9-16
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Estimating Environmental Impact Potential of Small Scale Fish Processing Using Life Cycle Assessment
Autorzy:
Astuti, R. S. D.
Hadiyanto, H.
Powiązania:
https://bibliotekanauki.pl/articles/123450.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment
fish processing
life-cycle assessment
Opis:
Post-harvest handling / processing of fishery commodities requires large amounts of water and energy to overcome their perishable properties. Water is needed as raw/auxiliary material and to ensure that the production process and its environment meet the sanitary and hygiene principles. Meanwhile, large amount of energy is required for the transportation of raw materials and products, cold chain system during the process and operations of processing machines. They contribute towards the environmental impact of fish processing. This study used life cycle assessment to estimate the potential environmental impact of small scale mackerel fish processing. The results showed that the fish processing has contributed to 0.079 kg SO2 eq acidification potential, 9.66 kg CO2 eq climate changGWP 100, 0.02 kg PO4 eq Eutrophication-generic, 0.17 kg 1.4 DCB eq human toxicity-HTP inf, and 0.0015 kg ethylene eq photochemical oxidation-high NOx. Wastewater treatment implementation simulation showed elimination of direct emissions that contribute to eutrophication and increasing the potential of other process associated with energy consumption.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 65-74
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Impact of Treated Sewage on Water Quality in Mordarka Stream
Autorzy:
Kurek, Karolina
Bugajski, Piotr
Młyński, Dariusz
Nowobilska-Majewska, Elwira
Powiązania:
https://bibliotekanauki.pl/articles/124636.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
wastewater treatment plant
sewage
quality of water
Opis:
This paper presents the analysis and evaluation of the impact of clean sewage on the water in the Mordarka river, in the period 2012–2015. The analysis was conducted based on the collected and statistical research: the amount and composition of the purified sewage discharged to the receiver. The following pollution indices were tested: total suspended solids, BOD5, COD, total nitrogen and total phosphorus. On the basis of the obtained results it was concluded that the amount of purified wastewater discharge to the Mordarka river, did not contribute to the degradation of the water quality in that period of time. Moreover, the level of indicators: total suspended solid, BOD5 and COD did not exceed the limit values from the regulation, which confirmed the effective protection of water quality in the Mordarka river. However, because of the high concentration of biogenic compounds in the purified wastewater effluents, the river is prone to eutrophication process.
Źródło:
Journal of Ecological Engineering; 2019, 20, 1; 39-45
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Statistical process control of removal of nitrogen compounds in the wastewater treatment plant in Krosno
Autorzy:
Wąsik, E.
Jurík, L.
Chmielowski, K.
Operacz, A.
Bugajski, P.
Powiązania:
https://bibliotekanauki.pl/articles/101057.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
control chart
biogenic compounds
wastewater treatment plant
Opis:
The aim of the paper was to determine the possibility of the use of Shewhart control charts to monitor changes in the forms of nitrogen, showing the quality of wastewater discharged from the wastewater treatment plant in Krosno in the years 2010-2015. The performed statistical analysis showed the highest number of cases of elevated nitrate nitrogen and/or ammonium nitrogen when the temperature of treated wastewater was below 8-9°C. This low temperature resulted in adverse effect on the activity of bacteria that were involved in biological removal of nitrogen. It was found that in the winter months, the second stage of nitrifying bacteria responsible for oxidation of nitrite to nitrate, exhibited higher activity than the denitrifying bacteria. Graphical presentation of total nitrogen content using control charts for the mean of the process revealed the exceedance of the upper specification line (USL = 10 mgNtot·dm-3) in the months from December to April. It was observed that the total nitrogen removal process in the months from June to November was stable with a very high 90% reduction in biogenic activity. The obtained results confirm the efficacy of control charts as a tool which can easily be applied in the statistical process control of total nitrogen removal in municipal wastewater treatment plants.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1699-1711
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetics of Pollutants Removal in Wetlands Influenced by Retention Time and Number of Plants Using Cyperus alternifolius
Autorzy:
Rahman, Danar Arifka
Priambodo, Eka Wahyudi
Caturputranto, Trisnadi Widyaleksono
Wahyudianto, Febri Eko
Powiązania:
https://bibliotekanauki.pl/articles/2202280.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
constructed wetland
Cyperus alternifolius
kinetics
wastewater treatment
Opis:
Constructed wetland is considered an alternative for domestic wastewater treatment in cities. This study serves to evaluate the removal capacity and kinetics of TSS, COD, phosphate, and surfactant in domestic wastewater with several plants of Cyperus alternifolius, through the use of the constructed wetlands treatment. The overall objective of the study was to determine the ability of Cyperus alternifolius to remove water pollutants in domestic wastewater in several plants. The domestic wastewater was contacted in a batch system. The results indicated that CWs had a good performance on COD, phosphate, and surfactant with removal efficiencies of more than 80%, with a retention time of 8 days and 5 plants. However, the removal of suspended solids was found limited, as shown that the TSS removal efficiency was under 40%. The first-order equation of kinetics described the degradation of pollutants. The q1/2 values, which were defined as the average removal loading prior to the half of the pollutant concentration being removed and represented the removal capacity without limitation of pollutants concentration, were moderately increased with an addition to the number of plants.
Źródło:
Journal of Ecological Engineering; 2022, 23, 12; 37--43
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badania ścieków poudojowych w wybranych gospodarstwach rolnych województwa podlaskiego
Rechearches the wastewater after milking in chosen agricultural farm of the Podlaskie Province
Autorzy:
Boruszko, D.
Kisłowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/399535.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ścieki poudojowe
oczyszczanie ścieków
wastewater after milking
wastewater treatment
Opis:
Analiza literatury i prasy branżowej wykazała, że ścieki poudojowe nie są dostatecznie poznane i scharakteryzowane co do ich ilości i jakości. Przeprowadzono badania ankietowe na grupie 100 rolników – producentów mleka na temat gospodarki ściekami poudojowymi. W kilku wybranych gospodarstwach województwa podlaskiego przeprowadzono badania ścieków poudojowych w różnych systemach ich produkcji i oczyszczania. W pobranych próbkach oznaczono zawartość: ChZT, BZT5, zawiesiny ogólnej, azotu ogólnego, azotu amonowego, azotu azotanowego, fosforu całkowitego, fosforanów oraz pH. W wyniku badań ustalono, iż rolnicy w swoich gospodarstwach nie kontrolują ilości i jakości odprowadzanych ścieków poudojowych. Ilość i jakość tych ścieków są zależne od zastosowanego systemu dojenia. Substancje chemiczne zużyte do mycia urządzeń do dojenia mają duży wpływ na pH ścieków i mogą powodować powstawanie ścieków o charakterze kwaśnym lub zasadowym.
After reviewing the available literature, it was found that the wastewater after milking is not sufficiently characterized. A questionnaire was prepared in order to obtain more information on the wastewater produced when milking. It was carried out on a group of a hundred dairy farmers. In a few selected farms wastewater after milking was sampled. In the wastewater after milking the basic parameters, i.e. pH, indicators of COD, BOD5, total suspended solids content, the content of total nitrogen, ammonia nitrogen, nitrate nitrogen, total phosphorus and phosphate were determined. It was found that farmers do not control the quantity and quality of wastewater after milking produced in their farms. The amount of such wastewater is dependent on the system of milking and the highest values were obtained on the farms where the milking system is used based on the milking wired machines. The chemicals used for cleaning milking equipment have a large effect on the pH of wastewater samples and depending on their acidic or alkaline character.
Źródło:
Inżynieria Ekologiczna; 2015, 45; 27-35
2081-139X
2392-0629
Pojawia się w:
Inżynieria Ekologiczna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Perspective Technologies of the Treatment of the Wastewaters with High Content of Organic Pollutants and Ammoniacal Nitrogen
Autorzy:
Malovanyy, Myroslav
Moroz, Oleksandr
Hnatush, Svitlana
Maslovska, Olga
Zhuk, Volodymyr
Petrushka, Ihor
Nykyforov, Volodymyr
Sereda, Andriy
Powiązania:
https://bibliotekanauki.pl/articles/124528.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
leachate treatment
aerated lagoon
microbiocenosis
biofuels
wastewater treatment plant
Opis:
The paper analyzes the advanced technologies of wastewater treatment with a high content of organic pollutants and ammonium ions. Two different bi-stage scenarios for the treatment of such effluents are proposed. The first scenario includes the pretreatment in aerated lagoons and the final stage at the wastewater treatment plants after appropriate dilution with municipal sewages. The second scenario also includes the first stage in aerated lagoons with a tertiary treatment at the plant for cyanobacteria cultivation with the use of obtained biomass for biofuels production. The effects of the aeration periodicity on the leachate treatment efficiency and also on the composition of microbiocenosis in the aerated lagoons were investigated. The leachates of the Lviv landfill of municipal solid waste (MSW) were used in experimental investigations. The Lviv landfill of MSW was used for domestic and industrial wastes deposition for almost six decades, since the 1960s. It was found that the highest effect of ammoniacal nitrogen removal was obtained in the mode of periodic aeration, with the cycle duration of two hours including the one-hour aeration. It was found that the microorganisms extracted from the leachates of the Lviv MSW landfill are prospective for the new biotechnologies of treatment of the highly concentrated wastewaters, since this microbiocenosis is resistant to the widespread pollutants, in particular to heavy metal ions.
Źródło:
Journal of Ecological Engineering; 2019, 20, 2; 8-15
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effectiveness of Pollutant Removal At the Wastwewater Treatment Plant in Goleniów
Autorzy:
Jakubaszek, Anita
Powiązania:
https://bibliotekanauki.pl/articles/2051690.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
wastewater treatment
modernization
wastewater treatment plant
Wastwewater Treatment Plant in Goleniów
oczyszczanie ścieków
modernizacja
oczyszczalnia ścieków
Oczyszczalnia Ścieków w Goleniowie
Opis:
The article assesses the efficiency of pollutant removal at the sewage treatment plant in Goleniów after modernization of the technological system. The extension and modernization of the existing installation resulted from the need to adapt the treatment plant to accept larger loads of pollutants, improve the parameters of treated sewage discharged to the receiver, and the poor technical condition of the equipment. Before the modernization of the treatment plant, an increase in the loads of COD, BOD5, and periodic total suspended solids in raw sewage was observed as well as a reduction in the efficiency of removing pollutants from the sewage. The efficiency of removing pollutants after modernization was in the range of BOD5 - 94.4 ÷ 99.8%, COD - 89.3 ÷ 98.9%, total suspended solids TSS - 95.3 ÷ 99.7%, total nitrogen - 64.1 ÷ 95.4%, and total phosphorus - 75.4 ÷ 99.4%.
Źródło:
Civil and Environmental Engineering Reports; 2021, 31, 3; 251-264
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efektywność pracy oczyszczalni ścieków w gminie Kaczory
Operational efficiency of wastewater treatment plant in Kaczory
Autorzy:
Stankiewicz, Monika
Stankiewicz, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/2097848.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorska Szkoła Biznesu w Szczecinie
Tematy:
oczyszczalnia ścieków
redukcja zanieczyszczeń
technologia oczyszczania ścieków
efektywność pracy oczyszczalni ścieków
właściwości fizykochemiczne ścieków
wastewater treatment plant
reduction of pollutions
wastewater treatment technology
efficiency of wastewater treatment plants
physicochemical properties of wastewater
Opis:
Celem niniejszego artykułu jest ocena efektywności pracy oczyszczalni ścieków w Kaczorach po przebudowie na podstawie wyników badań fizykochemicznych ścieków surowych oraz ścieków oczyszczonych. Dane pomiarowe zbierano od momentu zakończenia prac budowlanych w 2017 roku. W pracy przeanalizowano wskaźniki zanieczyszczeń zebrane do 2020 roku, a w oparciu o uzyskane wyniki uzyskano potwierdzenie, że przebudowana oczyszczalnia funkcjonuje w sposób prawidłowy i wysoce wydajny.
The purpose of this article is evaluation of work efficiency of wastewater treatment plant in Kaczory after reconstruction, based on the results of physicochemical tests of raw wastewater and treated wastewater. Measurement data was collected since the completion of construction works in 2017. The study analyzed the collected pollution indicators in the period to 2020 year and on the basis of the obtained results, it was confirmed that the rebuilt sewage treatment plant is functioning properly and highly efficiently.
Źródło:
Zeszyty Naukowe ZPSB Firma i Rynek; 2020, 2(58); 36-51
2657-3245
Pojawia się w:
Zeszyty Naukowe ZPSB Firma i Rynek
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dewatering of conditioned sludge in small wastewater treatment plants
Autorzy:
Wolny, L.
Powiązania:
https://bibliotekanauki.pl/articles/207409.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
wastewater treatment
dewatering
filtration
polyelectrolytes
sewage sludge
sewage treatment
sewage treatment plants
water treatment plants
municipal wastewater treatment plants
wastewater treatment plants
oczyszczanie ścieków
odwadnianie
filtrowanie
polielektrolity
osady ściekowe
oczyszczalnie ścieków komunalnych
oczyszczalnie ścieków
Opis:
Parameters characterizing the dewatering process of sewage sludge in small wastewater treatment plants (WWTPs) have been analyzed. Two municipal wastewater treatment plants of comparable capacity and similar technology of sewage treatment were selected to the analysis. Comparison of dewaterability of unprepared and conditioned sludge was made. During preliminary tests, the capillary suction time (CST) of sludge conditioned with cationic polyelectrolyte was determined. Next, for the optimal doses of selected polyelectrolyte, more detailed technological experiments were conducted such as vacuum filtration and susceptibility to the gravitational thickening. Tested sludge had very low susceptibility to thickening. The final volume of unprepared tested samples after 2 hour thickening was 977.0 cm3, while the initial volume of thickened sludge was 1000 cm3.The lowest value of final hydration for conditioned sludge was 64.0%.
Źródło:
Environment Protection Engineering; 2015, 41, 2; 99-105
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life cycle assessment of industrial and urban wastewater treatment plant
Ocena cyklu życia w oczyszczalni ścieków komunalnych i przemysłowych
Autorzy:
Skoczko, Iwona
Szatyłowicz, Ewa
Horysz, Magdalena
Malinowski, Łukasz
Tunc, Alican
Powiązania:
https://bibliotekanauki.pl/articles/435119.pdf
Data publikacji:
2016-03
Wydawca:
Uniwersytet Opolski
Tematy:
Life Cycle Assessment
Wastewater Treatment
Wastewater Treatment Methods and Environmental Effects
ocena cyklu życia
LCA
oczyszczalnie ścieków
równowaga ekologiczna
Opis:
Life Cycle Assessment (LCA) is a technique to assess environmental impacts associated with all the stages of a product's life from cradle to grave. With raising human population and the increasing industrialization, there has been very substantial increase in waste products too. Nowadays the importance of the wastewater treatment (domestic and industrial wastewater) need more attention in terms of the ecological balance. In this article a study was conducted and focused on the comprehension of the methods which are used for life cycle assessment and evaluation of environmental effects. In the proceeding sections of this study, Life Cycle Assessment method was used for evaluation the environmental advantages and expenses of other different wastewater treatment technologies and standards. An inventory of the input (chemical substances, electrical energy etc.) and output (emissions releases into the water, earth and the air, amount of sludge etc.) of the plants, where wastewater is treated, was documented. Potential environmental effects of the input and the output was assessed too. Finally, the obtained results were interpreted with regard to the objectives of LCA. With regard to these studies, attention was drawn to the importance of wastewater treatment plants which are regularly managed. Utilization of treatment systems resources and its effects on human health and ecology were assessed, finally the most suitable methods of wastewater treatment methods were tried to be explained with best examples.
Ocena cyklu życia (LCA) jest techniką mającą na celu identyfikację potencjalnych zagrożeń środowiska związanych ze wszystkimi etapami życia produktu „od kołyski do grobu”. Wraz z rozwojem cywilizacji nastąpił znaczny wzrost ilości powstających ścieków i odpadów. Obecnie oczyszczanie ścieków zarówno bytowych jak i przemysłowych wymaga uwzględnienia zasad równowagi ekologicznej i zrównoważonego rozwoju. W niniejszym artykule przeprowadzono badania dotyczące zastosowania oceny cyklu życia produktu w odniesieniu do technologii oczyszczania ścieków. Z interpretacją LCA wiąże się także ocena oddziaływania na środowisko danego układu bądź obiektu oczyszczania ścieków. W początkowej części opracowania zaprezentowano metodę oceny cyklu życia, która została wykorzystana do analizy korzyści i kosztów różnych technologii oczyszczania ścieków. Uzyskane wyniki zinterpretowano w odniesieniu do celów polityki LCA. Szczególną uwagę zwrócono na znaczenie oczyszczalni ścieków oraz ich wpływ na środowisko naturalne i zdrowie ludzi. Celem pracy było także przedstawienie w użyciu narzędzia LCA poprzez dokonanie analizy dwóch wariantów oczyszczania ścieków pochodzących z różnych fabryk produkujących opakowania kartonowe.
Źródło:
Economic and Environmental Studies; 2016, 16, 1(37); 147-158
1642-2597
2081-8319
Pojawia się w:
Economic and Environmental Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Skuteczność oczyszczania ścieków farbiarskich
Treatment efficiency of dyed wastewater
Autorzy:
Jędrzejczak, M.
Wojciechowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/1207216.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Przemysłu Chemicznego. Zakład Wydawniczy CHEMPRESS-SITPChem
Tematy:
ścieki barwne
oczyszczanie ścieków przemysłowych
dyed wastewater
industry wastewater treatment
Opis:
W pracy poddano ocenie ścieki z pięciu zakładów (w Łodzi i okolicach), zajmujących się barwieniem i wykańczaniem tkanin. Zakłady były zróżnicowane pod względem wielkości, rodzaju i ilości barwionych materiałów, a także pod względem rodzaju procesów oczyszczania ścieków barwnych. Stwierdzono, że odprowadzane ścieki nie zawsze spełniają kryteria dopuszczające zrzut ścieków do kanalizacji miejskiej. Jest to spowodowane przede wszystkim złym stanem technicznym urządzeń przeznaczonych do oczyszczania ścieków.
In this study the wastewater after finishing processes from five dying works located in Lodz and its surroundings were analyzed. These works varied in size, type and quantity of colored fabrics, and also in terms of the type of colored wastewater treatment processes. It was found that treated effluent does not always meet the criteria allowing the discharge of wastewater into the municipal sewage system. This is primarily due to the poor condition of technical devices used for wastewater treatment.
Źródło:
Chemik; 2016, 70, 3; 150-157
0009-2886
Pojawia się w:
Chemik
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sustainable sewage sludge management in Morocco: Constraints and solutions
Autorzy:
Ghacha, Abdessamad
Ben Allal, Laila
Ammari, Mohammed
Powiązania:
https://bibliotekanauki.pl/articles/293242.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
disposal
recovery
sewage sludge
sustainable management
wastewater
wastewater treatment plant
Opis:
The remarkable development of sanitation in Morocco has inevitably led to the production of sludge generated from wastewater treatment plants in increasing quantities. Consequently, the problem of sludge management becomes persistent and worrying. The aim of this paper was to contribute to the study of sewage sludge management issue in Morocco by identifying the various constraints hampering the sustainable disposal and/or recovery of municipal sewage sludge and drawing up recommendations for the decision-makers. Moreover, in the context of improving by learning from best practices and seeking common solutions regarding this problematic, benchmarking with other countries has been conducted as well. To carry out this study, a methodological approach was defined based on bibliographic research, surveys, interviews and benchmarking. The constraints hampering the sustainable management of sludge are numerous and complex, they have not been technical and environmental but also a regulatory, institutional-organizational and economic-financial nature yet. Therefore, municipalities, government and academia ideally would be encouraged to participate in the decision-making process regarding the management of sewage sludge. Technical solutions, when coupled with stakeholder participation, can lead to policy implementation with a higher chance of improving the present situation. In the case of Morocco, when comparing with others sludge recovery and disposal routes, land application (reuse in agriculture, silviculture and rehabilitation of degraded soils) remains the most environmentally friendly option, as well as a sustainable and economically viable solution.
Źródło:
Journal of Water and Land Development; 2020, 46; 71-83
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Określenie możliwości zmniejszenia obciążenia oczyszczalni ścieków mleczarskich przez zastosowanie wydzielonego oczyszczania odcieków z przeróbki osadów
The possibility of dairy wwtp load decreasing by using separate constructed wetland for effluents from sludge processing treatment
Autorzy:
Dąbrowski, W.
Wiater, J.
Powiązania:
https://bibliotekanauki.pl/articles/1818790.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
obciążenie oczyszczalni
wydzielone oczyszczanie
ścieki mleczarskie
wastewater treatment
dairy wastewater
Opis:
The paper presents author's experience related to reject water produced during aerobic sludge treatment in dairy waste water treatment plant. Problem of reject water relates to almost every biological sewage treatment plant that applies aerobic or anaerobic stabilization of sewage sludge. Reject water is a byproduct like sewage sludge. It is usually returned to the beginning of purification line. Dairy WWTP belonging to Bielmlek Bielsk Podlaski was modernized in 2011 after 30 years exploitation with “Promlecz” system. Flotation process was implemented as high efficiency biological treatment witch SBR system too. The main aim of investigation was to find out the quantity and quality of reject water and raw sewage after modernization. Author presents results obtained between September and November 2012. Mean pollution concentration in reject water and sewage from Bielmlek dairy W.W.T.P. after modernization were: BOD5 -114 mg O2/l in reject water and 1520 mg O2/l in sewage, COD-290 mg O2/l in reject water and 1890 mg O5 /l in sewage, TKN-2.4 mg N/l in reject water and 65,0 mg N/l in sewage, ammonia nitrogen 19.8 mg N-NH4/l in reject water and 1.8 mg N-NH4/l, in sewage and total phosphorus -7.5 mg P/l in reject water and 9.8 mg P/l in sewage. The mean quantity of reject water was 45 m3/day while raw sewage 780 m3/day. The share of reject water load in row dairy sewage load was counted and it was only 0.7% for BOD5, 8% for TKN and 38% for ammonia nitrogen. Due to high load of ammonia nitrogen in reject water it is justified to implement separate treatment to decrease it. In 2010 in Bielmlek dairy WWTP was started full scale installation to treat reject water with constructed wetland. It was implementation of his research project “Evaluation of constructed wetlands usefulness to purify reject water from sludge aerobic processing in dairy wastewater treatment plants”. Due to composition of reject water after modernization of dairy WWTP. It was counted that the share ammonia nitrogen load in row wastewater can be decreased from 38.6% without treatment to 12.4% after treatment with constructed wetland.
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 1; 823-834
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza statystyczna zawartości azotu ogólnego w złożu oczyszczalni hydrofitowej w Małyszynie
Statistical analysis of total nitrogen in the soil of constructed wetland in Małyszyn
Autorzy:
Jakubaszek, A.
Wojciech, M.
Powiązania:
https://bibliotekanauki.pl/articles/372002.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
oczyszczanie ścieków
oczyszczalnia hydrofitowa
wastewater treatment
constructed wetland
Opis:
Usuwanie związków azotu w oczyszczalniach hydrofitowych uzależnione jest od wielu czynników fizyczno-chemicznych i biochemicznych oraz warunków środowiskowych. W artykule przedstawiono opracowanie statystyczne zawartości azotu ogólnego w złożu hydrofitowym oczyszczalni. Wyniki badań materiału filtracyjnego wykazały, że największą zawartością azotu charakteryzowała się powierzchniowa warstwa gruntu do 20 cm głębokości. Kumulacja azotu ogólnego malała wraz z penetracją w głąb złoża oraz w kierunku odpływu ścieków z oczyszczalni.
Removal of nitrogen from constructed wetlands depends on many physic-chemical and biochemical conditions, deposit and environmental factors. The paper contains the results of statistical analysis the accumulation of total nitrogen in the soil. The results of the research have indicated that the highest content of nitrogen was observed in the surface layer of the soil at a depth of up to 20 cm. The content of total nitrogen has dropped with the penetration depth and towards the sewage flow from the constructed wetland.
Źródło:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski; 2011, 142 (22); 75-85
1895-7323
Pojawia się w:
Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lepsza woda w stołecznych kranach
Autorzy:
Siedlecka, A.
Powiązania:
https://bibliotekanauki.pl/articles/363962.pdf
Data publikacji:
2011
Wydawca:
Nowoczesne Budownictwo Inżynieryjne
Tematy:
oczyszczanie ścieków
Warszawa
wodociągi
Warsaw
wastewater treatment
waterworks
Opis:
Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w m. st. Warszawie SA w 2010 r. sfinalizowało najważniejsze inwestycje wykonywane w ramach współ.nansowanego przez Unię Europejską projektu nr 2000/PL/16/P/PE/020 Zaopatrzenie w wodę i oczyszczanie ścieków w Warszawie, realizowanego w latach 2004-2010. Jego nadrzędnym celem była przede wszystkim poprawa jakości wody oraz stworzenie skutecznego systemu odbioru i oczyszczania ścieków z południowej części stolicy.
Źródło:
Nowoczesne Budownictwo Inżynieryjne; 2011, 2; 26
1734-6681
Pojawia się w:
Nowoczesne Budownictwo Inżynieryjne
Dostawca treści:
Biblioteka Nauki
Artykuł

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