Temat: wastewater treatment plant - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

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

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Skocz do pozycji: 3.

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

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Skocz do pozycji: 4.

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

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Skocz do pozycji: 5.

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

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Skocz do pozycji: 6.

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

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Skocz do pozycji: 7.

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

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Skocz do pozycji: 8.

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

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Skocz do pozycji: 9.

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, COD_Cr, 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: COD_Cr/BOD₅, BOD₅/N_tot, BOD₅/P_tot. 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, COD_Cr, total suspended solids) in the raw sewage were similar and amounted to W_n = 0.45 while for total nitrogen it was W_n = 0.33 and for total phosphorus W_n = 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

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Skocz do pozycji: 10.

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

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Skocz do pozycji: 11.

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 mgN_tot·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

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Skocz do pozycji: 12.

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

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Skocz do pozycji: 13.

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

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Skocz do pozycji: 14.

Tytuł:: Studies of heavy metal content in bottom sediments and aquatic plants near treated wastewater discharge
Autorzy:: Skorbiłowicz, M.
Skorbiłowicz, E.
Tarasiuk, U.
Falkowska, M.
Powiązania:: https://bibliotekanauki.pl/articles/184819.pdf
Data publikacji:: 2017
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:: rivers
wastewater treatment plant
metals
bottom sediment
macrophytes
Opis:: The paper attempts to determine the degree of impact of discharged wastewater from five treatment plants on the Bug River ecosystem and its inflow, the Kamianka. For laboratory tests, samples of bottom sediments and aquatic plants were collected in 2014. The content of heavy metals: Zn, Pb, Ni in bottom sediments and aquatic plants (root, stem, leaf) growing close to the discharge of purified sewage, were analyzed. The amount of metals in the samples was determined applying the AAS method in its flame version. The average content of the metals determined in bottom sediments from the study points located before the treatment plant were Zn – 21.8; Pb – 11.5; Ni – 13.7 mg kg−1. However, the content of these metals was higher in samples from the collection points which were located after the place of purified sewage discharge and amounted to: Zn – 34.3; Pb – 12.2; Ni – 16.9 mg⋅kg−1. The test plants were Acorus calamus L., Nuphar lutea L., Typha angustifolia L. The content of metals in the individual parts of macrophytes (root, stem, leaf) was as follows: Zn > Pb > Ni. In the bottom sediments and aquatic plants of the Bug and Kamianka rivers, a higher content of lead, zinc and nickel was found after the discharge of treated sewage in relation to their content than before discharge, but it was not a threat to the aquatic environment of the watercourses studied. Statistical analysis showed that the amount of sewage discharged to the tested receivers influenced the content of organic matter, zinc and nickel in bottom sediments.
Źródło:: Geology, Geophysics and Environment; 2017, 43, 4; 311-325
2299-8004
2353-0790
Pojawia się w:: Geology, Geophysics and Environment
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Wybrane aspekty funkcjonowania oczyszczalni ścieków w Szczawnicy w aspekcie jakości wód odbiornika
Selected aspects of functioning of the sewage treatment plant in Szczawnica in terms of receiver water quality
Autorzy:: Wąsik, E.
Chmielowski, K.
Młyński, D.
Bedla, D.
Powiązania:: https://bibliotekanauki.pl/articles/400387.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: oczyszczalnia ścieków
odbiornik
Szczawnica
Dunajec
wastewater treatment plant
receiver
Opis:: Artykuł zawiera ocenę wpływu ścieków, odpływających z oczyszczalni w Szczawnicy przed i po modernizacji obiektu, na skład fizykochemiczny oraz jakość wód ich odbiornika – rzeki Dunajec. Pracę wykonano na podstawie analizy pobranych próbek ścieków surowych i oczyszczonych oraz wód odbiornika. Punkty poboru wody z Dunajca znajdowały się odpowiednio powyżej i poniżej punktu zrzutu ścieków z OŚ. Zakres oznaczanych wskaźników zanieczyszczeń obejmował 14 parametrów fizykochemicznych oraz dwa wskaźniki bakteriologiczne. Na podstawie wykonanych badań stwierdzono, że OŚ w Szczawnicy po jej modernizacji w 2016 r. funkcjonowała prawidłowo. Oczyszczone ścieki na niej spełniały wymogi pozwolenia wodnoprawnego, co przekładało się bezpośrednio na skuteczną ochronę przed zanieczyszczeniem wód odbiornika. Potwierdziły to wyniki zastosowanego testu Kruskala-Wallisa, które wykazały statystycznie istotne różnice pomiędzy medianami wartości stężeń azotu ogólnego przed i po modernizacji obiektu. W przypadku pozostałych analizowanych wskaźników zanieczyszczeń (zawiesiny ogólnej, BZT₅, ChZT_Cr, fosforu ogólnego) nie wykazano statystycznie istotnych różnic pomiędzy medianami. Ponadto stwierdzono, że w obydwu badanych przekrojach skład fizykochemiczny wód Dunajca był do siebie zbliżony. Ścieki oczyszczone, odprowadzane z oczyszczalni w Szczawnicy do rzeki Dunajec nie przyczyniły się do pogorszenia jakości jego wód w przypadku wskaźników fizykochemicznych. Na podstawie klasyfikacji tych elementów określono, że w analizowanym okresie badań wody Dunajca w przekroju bezpośrednio powyżej i poniżej OŚ spełniają wymogi dla kategorii A1 wód przeznaczonych na zaopatrzenie ludności (woda bardzo dobrej jakości). W przypadku klasyfikacji mikrobiologicznej, dokonanej na podstawie ilości bakterii grupy coli i Escherichia coli, Dunajec zakwalifikowano do IV i V klasy (woda niezadowalającej i złej jakości), co tym samym wyklucza jego wody jako przeznaczone do spożycia oraz jako miejsce potencjalnych kąpielisk.
This article includes an assessment pertaining to the impact of sewage discharged from the sewage treatment plant in Szczawnica before and after the modernization of the facility, the physicochemical composition and the quality of the water of their receiver, i.e. Dunajec River. The work was carried out on the basis of the analysis of samples taken from the raw and purified sewage and receiver waters. The Dunajec water intake was above and below the point of sewer discharge from the wastewater treatment plant (WWTP). The range of contaminated indicators included 14 physicochemical parameters and two bacteriological indicators. On the basis of the research conducted, it was stated that the Szczawnica Forest Enterprise functioned correctly after its modernization in 2016. The purified sewage on it complies with the requirements of a water permit, which translates directly into effective protection against the pollution of receiver waters. This was confirmed by the results of the Kruskal-Wallis test that showed statistically significant differences between the median values of overall nitrogen concentrations before and after the refurbishment of the facility. For the remaining pollutant indices (total suspensions, BOD₅, COD_Cr, total phosphorus), no statistically significant differences were found between the medians. In addition, it was found that the physicochemical composition of Dunajec waters was similar in both examined sections. The purified efflu ent discharged from the Szczawnica treatment plant to the Dunajec River did not contribute to deterioration of its water quality in the case of physicochemical indicators. On the basis of on the classification of these elements, it was determined that in the analyzed period, the Dunajec water in the section directly above and below the WWTP meets the requirements for category A1 of waters intended for the supply of the population (very good quality water). In the case of microbiological classification based on the number of bacteria of the coli group and Escherichia coli, Dunajec was classified as IV and V class (unsatisfactory and poor quality water), thus excluding its water for consumption and as a potential bathing place.
Źródło:: Inżynieria Ekologiczna; 2017, 18, 6; 41-51
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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