Temat: Sewage - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of sewage susceptibility to biodegradation on an example of sewage treatment plant in Wodzisław Śląski
Autorzy:: Chmielowski, K.
Wąsik, E.
Operacz, A.
Bugajski, P.
Kaczor, G.
Jurik, L.
Powiązania:: https://bibliotekanauki.pl/articles/101267.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: sewage biodegradation
sewage composition
sewage treatment plant
Opis:: The paper presents an analysis of sewage susceptibility to biodegradation on an example of sewage treatment plant in Wodzisław Śląski in the Śląskie province. For this purpose, dependencies between selected indices of domestic sewage pollution were applied. Descriptive statistics of the respective indices rations COD/BOD5 , BOD5 /TN, BOD5 /TPwere presented. Moreover, an analysis was conducted on the composition of raw sewage flowing into the treatment plant, pre-treated sewage and sewage leaving the studied treatment plant. The analysis was carried out on the basis of three basic indices of sewage pollution (BOD5 , COD and total suspended solids) and two biogenic indices (total nitrogen and total phosphorus). Tests on the sewage composition were conducted in the years 2010-2015. Basic descriptive statistics were compiled for the values of the studied indices of sewage pollution and the obtained results were interpreted. On the basis of collected material it may be said that sewage reaching the treatment plant in Wodzisław Śląski revealed a good susceptibility to biodegradation, whereas the BOD5 /TN and BOD5 /TP ratios were below the optimum value.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/1; 1427-1443
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Determination of metal content in sewage sludge and sewage sludge ash to find opportunities to use them in the construction industry
Autorzy:: Świerczek, Lesław
Cieślik, Bartłomiej
Powiązania:: https://bibliotekanauki.pl/articles/1163144.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: heavy metals
sewage sludge
sewage sludge ash
sewage sludge management
Opis:: Sewage sludge management is becoming an increasing problem in developed and developing countries. Due to their physicochemical properties (mainly high content of heavy metals) a safe method of utilization is sought. Considering environmental protection, energy recycling, reduction in use of the raw materials and the possibility of immobilization hazardous substances, the use of ashes in building materials becomes a very good way of utilization. Both unprocessed sewage sludge and ashes after their thermal utilization can be used in the construction industry. Before using sediments and ashes, it is necessary to analyze the content of heavy metals, because they can have a negative effect, for example, on cement-stabilized products. The purpose of this work was to determine selected metals (Cd, Cu, Ni, Pb, Zn, Cr, Mg, Mn, Fe) in the primary, dehydrated, digested, excess sludge and ash after his incineration to check and compare heavy metal content. The obtained data can be used to optimize the production process of cement products that contain sewage sludge at differ form, and confirm the environmental safety of proposed approaches.
Źródło:: World Scientific News; 2018, 110; 227-235
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The efficiency of pollutant elimination in the Dobra treatment plant
Autorzy:: Nowak, J.
Chmielowski, K.
Chmielowska, B.
Bedla, D.
Powiązania:: https://bibliotekanauki.pl/articles/101622.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: sewage treatment plant
domestic sewage
SBR
Opis:: This study was aimed to conduct an analysis of the efficiency of pollutant elimination in the Dobra treatment plant, which operates based on the SBR reactor. The object purifies domestic sewage and pre-treated industrial sewage from a slaughterhouse within the Dobra municipality. The source material for the analysis comprised the values of pollution indicators: BOD5 , CODCr, total suspended solids (TTS) in raw sewage (19 samples) and treated sewage (34 samples). The results of chemical analyses were obtained in the period 2007-2014. The results were compared with the limit values imposed by the Regulation (2014). The coefficient of reliability of the treatment plant was also calculated in this study. The average efficiency of pollutant elimination in the treatment plant was: BOD5 - 98.6%, CODCr - 94.9%, total suspended solids - 97.6%. These results demonstrate that the studied facility operates flawlessly and the treatment efficiency is high. On the other hand, the reliability coefficient values indicate that the operation of this object is unstable.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2016, III/1; 737-747
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Drop in Conductivity of Sewage Sludge in the Process of Autothermal Thermophilic Aerobic Digestion
Autorzy:: Bartkowska, I.
Powiązania:: https://bibliotekanauki.pl/articles/123193.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal stabilization of sewage sludge
conductivity of sewage sludge
neutralization of sewage sludge
sanitation of sewage sludge
sewage sludge processing
Opis:: The article presents research on the assessment of electrolytic conductivity changes of sludge during the process of its autothermal thermophilic aerobic digestion (ATAD), which takes place in a two-stage installation system, operating in a municipal sewage-treatment plant. In the years 2012–2014 sludge was studied and the results were analyzed. Thickened sludge in the intermediate tank, which was then directed to installation reactors, was examined. Conductivity was measured in each tank. In this manner collected results made it possible to follow the changes of this index at consecutive stages of the system. The results were statistically analyzed and it was determined to what degree, as a result of an objective process, the values of processed sludge conductivity would change. The conclusions from the carried-out studies and from own experiments are also presented.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 67-75
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Quantitative-Qualitative Analysis of Sewage for the Newly Designed Sanitary Sewage System
Analiza ilościowo-jakościowa ścieków dla nowo projektowanej kanalizacji sanitarnej
Autorzy:: Krukowski, I.
Iwanek, M.
Widomski, M. K.
Fisz, M.
Powiązania:: https://bibliotekanauki.pl/articles/387687.pdf
Data publikacji:: 2013
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: sanitary sewage
sewage quality
sanitary sewage system
sewage quantity
ścieki sanitarne
jakość ścieków
kanalizacja sanitarna
ilość ścieków
Opis:: A basic kind of engineering activity improving quality and comfort of citizens’ life is maintenance of the suitable sanitary state. The above may result from suitable devices and buildings of sewage transport and treatment. The correctly designed sewer system assures the uninterrupted intake of sewage at the minimization of the negative impact on human health and the environment. The existing sewer systems are frequently extended for new lines causing the growth of the quantity and load of pollutions in sewage entering the wastewater treatment plant (WWTP). This paper shows the results of the quantitative-qualitative analysis of sanitary sewage from the newly designed sanitary sewage system in the west site of Rejowiec Fabryczny. Our analysis was conducted to determine the increase of the pollutants load entering the WWTP. The analysis was based on the pollutants load in average-twenty-four hours samples of raw sewage sampled in the screens chamber in mechanical-biological WWTP. The results of sewage qualitative analyses from the period of years 2008–2009 were adopted to our research. The pollutants loads in the newly designed network in the west of Rejowiec Fabrycznego were defined basing on the research of the inequality of the water demand in seven household. This analysis allowed the pollutants loads prediction in raw sewage inside the newly designed network of the sanitary sewage system. The proposed analysis demands validation permitting for confirmation of assumed simplifications.
Podstawowym rodzajem aktywności inżynierskiej pozwalającym na poprawę jakości i komfortu życia mieszkańców jest utrzymanie odpowiedniego stanu sanitarnego. Możliwe jest to dzięki urządzeniom i budowlom pozwalającym na odprowadzanie i unieszkodliwianie ścieków. Prawidłowo zaprojektowana sieć kanalizacyjna zapewnia nieprzerwany odbiór ścieków przy minimalizacji negatywnego wpływu na zdrowie i środowisko naturalne. Coraz częściej istniejące już sieci kanalizacyjne są rozbudowywane, co powoduje wzrost ilości i ładunku zanieczyszczeń w ściekach dopływających do oczyszczalni. Niniejsza praca przedstawia wyniki analizy ilościowo-jakościowej ścieków sanitarnych z nowo projektowanej kanalizacji sanitarnej w zachodniej części miejscowości Rejowiec Fabryczny. Analiza miała na celu określenie wzrostu ładunku zanieczyszczeń dopływających do oczyszczalni. Przeprowadzono ją na podstawie analizy ładunku zanieczyszczeń w próbkach średnio-dobowych ścieków surowych, dopływających do kraty w istniejącej mechaniczno-biologicznej oczyszczalni ścieków. Do analizy przyjęto badania jakości ścieków z okresu 2008–2009, przeprowadzanych w kolejnych kwartałach. Ładunek zanieczyszczeń w kolejnych godzinach w ciągu doby z nowo projektowanej sieci w zachodniej części Rejowca Fabrycznego określono na podstawie badań nierównomierności rozbioru wody w siedmiu gospodarstwach domowych. Przeprowadzona analiza pozwala na określenie całkowitego prognozowanego ładunku zanieczyszczeń w ściekach surowych, doprowadzanego przez nowo projektowaną sieć kanalizacji sanitarnej. Jednocześnie określa ona ładunki dopływające w poszczególnych godzinach w ciągu doby. Zaproponowana analiza wymaga przeprowadzenia weryfikacji w celu potwierdzenia bądź odrzucenia prawidłowości zastosowanych uproszczeń.
Źródło:: Ecological Chemistry and Engineering. A; 2013, 20, 1; 89-97
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

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: 7.

Tytuł:: Reliability of sewage treatment plants processing sewage from school buildings located in non-urban areas
Autorzy:: Bugajski, P.
Almeida, M. A. A.
Kurek, K.
Powiązania:: https://bibliotekanauki.pl/articles/101488.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:: sewage
reliability
on-site sewage treatment facility
Opis:: The aim of this study was to assess the reliability of two on-site sewage treatment facilities (BCT S-12 and TJ EP-4) serving two school buildings located in rural communes in Małopolska region. The reliability was determined using Weibull reliability method. The research was conducted for 24 months and it involved the collection and analysis of 48 samples of raw and treated sewage from each facility. The analyses included organic and biogenic pollution, i.e. BOD5 , COD, and total nitrogen. Reliability assessment revealed the following effectiveness for BCT S-12 facility: 77% for BOD5 , 96% for COD and 25% for total nitrogen. For TJ EP-4 facility, the effectiveness was 81%, 88% and 72% for BOD5 , COD and total nitrogen, respectively. Both facilities used the activated sludge process and experienced periodic disturbances in the treatment flow that resulted in reduced sewage treatment efficiency. Considering the above, the processes of nitrification and denitrification in the biological reactor should be streamlined to provide more effective removal of organic and nitrogen-based compounds in the investigated facilities.
Źródło:: Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/3; 1547-1557
1732-5587
Pojawia się w:: Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Analysis of the Variability of the Composition of Sewage Sludge Before and After Drying Treatment – SEM Studies
Autorzy:: Kiper, Justyna
Głowacka, Anna
Rucińska, Teresa
Powiązania:: https://bibliotekanauki.pl/articles/124107.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage sludge
sewage sludge management
SEM observation
Opis:: The aim of the study was to determine the physical and chemical properties of the sewage sludge from “Pomorzany” and “Zdroje” municipal wastewater treatment plants located in Szczecin, Poland. The paper presents the outcomes of SEM observation of dried and stabilized sewage sludge. The research on the obtained materials was conducted using reference methods; the images from a scanning electron microscope were used. The amount of sewage sludge produced with the methods of its management was presented. The technology of sludge management is based on its dehydration up to dry weight content of roughly 20% and then drying in contact dryers up to 90–92% dry weight, separately in both plants. Dried sewage sludge is subsequently burned in mechanical grid boilers at “Pomorzany” WWTP. The analyzed materials were characterized by the pH of 7.90–8.42, dry mass and average organic matter content were 18.949% and 68.903%, respectively. The elements identified in the largest amount on the surface of analyzed materials included calcium, iron, phosphorus, sulphur and silicon. The amount of phosphorus ranging from 1.82 to 3.44% indicates the possibility of using sewage sludge as organic fertilizer product or an alternative source of phosphorus.
Źródło:: Journal of Ecological Engineering; 2019, 20, 7; 45-52
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Current State of Communal Sewage Treatment in the Republic of Kazakhstan
Autorzy:: Andraka, D.
Ospanov, K.
Myrzakhmetov, M.
Powiązania:: https://bibliotekanauki.pl/articles/124515.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage treatment
sewage characteristics
decentralized systems
sustainability
Opis:: Protection of water environment from pollution is one of the major tasks in the contemporary world. Nowadays, in the Republic of Kazakhstan ecological situation concerning sewage treatment remains deficient. Raw sewage is often discharged directly onto filtration beds or landfills. Many existing wastewater treatment facilities in cities are in unsatisfactory technical conditions. In many villages and small settlement units the problem of treatment and disposal of sewage sludge from treatment facilities also requires urgent solutions. In this article, the current state of communal sewage treatment in the Republic of Kazakhstan is shown. The technical and technological characteristics of sewage disposal systems, including the cities of Almaty and Astana, are presented. This article is especially aimed at identification of environmental problems related with sewage treatment in the Republic of Kazakhstan.
Źródło:: Journal of Ecological Engineering; 2015, 16, 5; 101-109
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Analysis of the sewage system expandability in Mściwojów commune
Autorzy:: Bergel, T.
Bugajski, P.
Pawełek, J.
Powiązania:: https://bibliotekanauki.pl/articles/100285.pdf
Data publikacji:: 2013
Wydawca:: Uniwersytet Rolniczy im. Hugona Kołłątaja w Krakowie
Tematy:: sewage system
expansion
sewage
kanalizacja
rozwój
ścieki
Opis:: The aim of the study is to analyze the hydraulic conditions of the existing sewage system and the sewage treatment plant in the commune of Mściwojów. This is in relation to the aspect of connecting new buildings, as a part of the investments in the pilot project VITAL LANDSCAPES no. 2CE164P3. The analysis led to the conclusion that an increased wastewater inflow from the new buildings is manageable. The current capacity of the sewage treatment plant will be increased by 3 to 5%, which will not affect the stability of the existing treatment process. The hydraulic analysis of the sewer network proved that the existing sewer collectors can handle the increased flow.
Źródło:: Geomatics, Landmanagement and Landscape; 2013, 2; 7-14
2300-1496
Pojawia się w:: Geomatics, Landmanagement and Landscape
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Changes in surface water microflora caused by discharge of purified sewage into rivers
Autorzy:: Godela, Agnieszka
Lewańska, Monika
Myga-Nowak, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/1179554.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Sewage
river
sewage treatment plant
sewers
water microflora
Opis:: Progressive environmental degradation results in an increase in the number of waters that do not meet the standards in force. Surface waters are particularly vulnerable to pollution because they are receivers of purified water and agricultural or industrial wastewater flow. In addition, the local increase in temperature and the increase amount and availability of nutrients associated with wastewater discharged improves the microbial growth and thus increase their quantity. The treated sewage must meet certain requirements regarding their physicochemical and biological parameters. However, the regulations do not require to check microbiological quality by treatment plants, so the purpose of the study was to determine the impact of discharge of purified wastewater by the "Warta" sewage treatment plant down to Warta river. The study was conducted in 2008-2016 at three collection points near the place of discharge of purified sewage from Warta SA sewage treatment plant. It has been demonstrated that the process of sewage treatment is not enough in terms of microbiological pollution because the water samples collected at the points behind the discharge site of the effluent into the river were characterized by increased abundance and microbiological diversity.
Źródło:: World Scientific News; 2017, 75; 26-32
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Methods of Flushing of Sewage Sludge Collected on the Bottom of a Retention Chamber
Autorzy:: Malmur, R.
Mrowiec, M.
Powiązania:: https://bibliotekanauki.pl/articles/125069.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: drainage system
retention
sewage
sewage reservoirs
transfer reservoirs
Opis:: This paper presents new achievements in the field of designing the gravitation and gravitation-underpressure chamber for bottom flushing in the detention chamber immediately after its emptying from the accumulated sewage. Temporary accumulation of the sewage in the detention chamber of the reservoir causes partial sedimentation of the solids suspended in the liquid. The location of the flushing chamber at the maximal level of filling with sewage in the retention chamber substantially improves the effectiveness of flushing of the bottom of the retention chamber with the stream of sewage that is discharged from the flushing chamber. An opportunity for effective flushing of the sludge that remains on the bottom of a detention chamber represents an important operation which is essential for reliable functioning of retention reservoirs within sewerage systems.
Źródło:: Journal of Ecological Engineering; 2018, 19, 5; 200-209
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Analysis of the Hydraulic Load of a Local WWTP in the South-Eastern Poland Including Hydraulic Capacity of the Sewage Receiver
Autorzy:: Młyńska, Anna
Młyński, Dariusz
Chmielowski, Krzysztof
Powiązania:: https://bibliotekanauki.pl/articles/2202274.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: hydraulic load
sewage
sewage receiver
sewage outflow
mean low flow
SNQ
wastewater treatment plant
WWTP
Opis:: The paper constitutes the analysis of hydraulic load of a local wastewater treatment plant in the south-eastern Poland along with the analysis of sewage receiver hydraulic capacity and related receiving waters protection. Assuming that the daily outflow of treated sewage should not exceed 10% of the mean-low flow (SNQ) of the receiver, no case of daily sewage outflow greater than 10%·SNQ = 51 840 m3·d-1 was recorded. Moreover, average daily hydraulic load of the treatment plant was lower than the limit value by over 70% and the maximum recorded value – by over 40%. Furthermore, the conducted analysis shows that the particular months differed from each other in the values of the daily hydraulic load of the wastewater treatment plant at the outflow; May was the month with the highest average daily sewage outflow, while September was characterized by the lowest average daily outflow of treated sewage. There was also no clear dependence between the hydraulic load of the WWTP and the day of the week. Daily sewage outflows ranging from 10 000 m3·d-1 to 12 000 m3·d-1 constituted the largest part of all observations. The daily sewage outflows directed to the receiver prove that there is no threat to the preservation of the water environment quality.
Źródło:: Journal of Ecological Engineering; 2022, 23, 11; 261--272
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Treated sewage as an additional source of dangerous bacteria in rivers such as Listeria spp.
Autorzy:: Lewańska, Monika
Godela, Agnieszka
Myga-Nowak, Magdalena
Powiązania:: https://bibliotekanauki.pl/articles/1179558.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Listeria
Listeria monocytogenes
listeriosis
sewage sludge
treated sewage
wastewater
Opis:: Purified water daily discharged to surface water from local sewage treatment plants can cause illnesses people and animals in nearby areas. Sometimes they also contribute to the development of diseases in much bigger region range. Often the cause of such infections are pathogenic Listeria rods especially Listeria monocytogenes, which are not eliminated in the technological process of wastewater treatment carried out by local sewage treatment plants. Therefore, the purpose of the study was to investigate the influence of the sewage treatment plant on the presence of Listeria bacteria and to estimate the potential hazard resulting from its occurrence in the water of the Warta River. Research points were located on the Warta River before and after the discharge of purified sewage through the treatment plant, also a direct exit of purified wastewater was examined. Samples were filtered and then estimated the growth characteristics of typical colonies on the selected diagnostic media were estimated and isolated microorganisms were characterized. Samples were filtered and then it had been defining the growth characteristics of typical colonies on the selected diagnostic media, finally isolated microorganisms were described. Studies have shown that the local wastewater treatment plant has a strong influence on the microbial quality of the Warta River and has shown strong impurity with Listeria rods, including pathogenic strains. Bearing in mind the results obtained, it can be stated that direct or indirect contact with receivers of the water of purified sewage poses a real threat to the health and even life of humans and animals.
Źródło:: World Scientific News; 2017, 75; 50-55
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Analysis of Selected Technical and Technological Parameters of the Sewage Sludge Stability Process
Autorzy:: Bartkowska, I.
Wawrentowicz, D.
Powiązania:: https://bibliotekanauki.pl/articles/123847.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal thermophilic stabilization
sewage sludge
dry mass
organic substances
sewage sludge hygienization
sewage sludge in agriculture
Opis:: The article presents the results of the analysis, which was carried out in 2015-2017 on the example of autothermal installation of thermophilic sludge stabilization (ATAD) in a sewage treatment plant in Giżycko. The installation was created in 2003 as the first of its kind and still remains operational. The purpose of the conducted research was to assess the suitability of the analyzed technological parameters as tools that can be used by operators to determine the actual possibilities of changing the operating conditions of the installation or to develop an optimization strategy to reduce the energy demand. The dry mass content and organic dry mass content was used as the assessment indicators. In the analysed period, the sludge from the process contained from 47.47% to 60.80% of organic matter in the dry mass of the sludge. The organic dry matter decrease due to the process was also calculated, and it ranged from 26.4% to 48.7%. The amount of sludge undergoing the process and the amount of electricity consumption were also analysed. On this basis, the energy consumption indicators in the ATAD process were calculated.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 69-74
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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