Temat: WWTP - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The Prevalence of tet(A) and tet(M) Tetracycline Resistance Genes in Municipal Wastewater
Autorzy:: Hubeny, Jakub
Buta, Martyna
Zieliński, Wiktor
Harnisz, Monika
Korzeniewska, Ewa
Nowrotek, Monika
Płaza, Grażyna
Powiązania:: https://bibliotekanauki.pl/articles/123400.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: WWTP
tetracyclines
ARGs
ARB
antibiotic resistance
environment
wastewater
Opis:: Antibiotic resistance is a widespread problem that poses one of the greatest risks to public health around the world. The main cause of antibiotic resistance is the overuse of antibiotics in the human and veterinary medicine and in agriculture. Drugs are released into the environment with treated wastewater, and they can act as stressors that increase the prevalence of antibiotic resistance genes (ARGs). Wastewater treatment plants (WWTPs) are not equipped with appropriate technologies for eliminating the genetic material from the treated wastewater. In this study, the prevalence of tet(A) and tet(M) genes encoding resistance to tetracycline antibiotics was investigated in the samples of municipal wastewater and sewage sludge collected from two WWTPs and in the water samples collected from rivers which receive the treated wastewater. The samples were collected in two seasons of the year (summer and fall). The presence of ARGs was confirmed by PCR. The study revealed that ARGs were not effectively removed from wastewater by the WWTP in the Region of Silesia. Seasonal variations in the occurrence of the analyzed genes were not observed in the samples collected from the above-mentioned plant. Tetracycline resistance genes were detected in all samples of river water. The tet(A) gene was not removed from the treated wastewater in the WWTP in the Region of Warmia and Mazury, whereas the tet(M) gene was detected on a seasonal basis. The tet(M) gene was not detected in the samples of river water collected upstream and downstream from the WWTP. The study demonstrated that the existing WWTPs lack the means to eliminate ARGs. The wastewater treatment systems have to be modified to effectively remove ARGs from the treated wastewater.
Źródło:: Journal of Ecological Engineering; 2019, 20, 10; 1-6
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Prevalence of Beta Lactamases Genes in Sewage and Sludge Treated in Mechanical-Biological Wastewater Treatment Plants
Autorzy:: Zieliński, Wiktor
Buta, Martyna
Hubeny, Jakub
Korzeniewska, Ewa
Harnisz, Monika
Nowrotek, Monika
Płaza, Grażyna
Powiązania:: https://bibliotekanauki.pl/articles/124493.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: WWTP
beta-lactamases
wastewater treatment
antibiotic resistance genes
Opis:: Wastewater treatment plants (WWTPs) are a very important link in the spread of antibiotic resistance genes to the environment and the formation of antibiotic-resistant microorganisms. The mechanical and biological methods of wastewater treatment in WWTPs do not completely remove the resistance genes from sewage. The genes responsible for extended-spectrum beta-lactamases (ESBLs) are very common in the family Enterobacteriaceae that colonize the human digestive tract and are abundant in wastewater. The aim of this study was to analyze the prevalence of genes encoding beta-lactamases in the wastewater and sludge samples collected from two WWTPs in the Polish regions of Warmia and Silesia and from the river water upstream and downstream from the WWTPs. The wastewater samples were passed through polycarbonate membrane filters, whereas the sludge samples were homogenized, and genomic DNA was extracted. The bla_TEM, bla_OXA and bla_SHV genes were detected by means of standard PCR. The most prevalent gene was bla_TEM which occurred in all samples, including the treated wastewater. The bla_OXA gene was also frequently detected in all samples from the WWTP in Silesia. The bla_SHV gene was least prevalent in the tested samples. These results indicate that wastewater is a hotspot for resistant bacteria. Beta-lactamase genes are not eliminated through the mechanical-biological wastewater treatment methods, and they can spread to other environments, thus increasing the pool of antibiotic resistance genes around the world and creating epidemiological risks.
Źródło:: Journal of Ecological Engineering; 2019, 20, 9; 80-86
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Occupational exposure to Staphylococcus aureus in the wastewater treatment plants environment
Autorzy:: Kozajda, Anna
Jeżak, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/2085573.pdf
Data publikacji:: 2020-05-15
Wydawca:: Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:: occupational exposure
antibiotic resistance
bioaerosol
MRSA
S. aureus
WWTP
Opis:: BackgroundThe aim of the study was to assess the occupational exposure to Staphylococcus aureus bacteria, including methicillin- resistant S. aureus (MRSA) and other antibiotic-resistant strains in the municipal wastewater treatment plants (WWTPs) environment.Material and MethodsIn 16 WWTPs in Poland, 33 wastewater and 253 air samples were collected in the spring–summer season. The microbiological analysis was carried out using a chromogenic medium. Species identification was carried out using the matrix assisted laser desorption ionization time-of-flight method, while the antibiotic-resistance analysis was performed with an automatic method.ResultsAmong 2805 bacterial isolates from the air and wastewater, 574 were identified as S. aureus species (20.5%). The presence of S. aureus species was found in 11 WWTPs (69%), among them in 11 WWTPs in raw wastewater and in 1 WWTP additionally in treated wastewater. The concentrations of S. aureus in wastewater ranged 2–1215 colony-forming units per milliliter (CFU/ml). In the air, 2 S. aureus isolates were identified in concentrations of 5 and 10 CFU/m³; both samples were collected at the stage of mechanical wastewater treatment. The results revealed the following trend: the higher the outdoor temperature, the bigger the number of WWTPs with confirmed S. aureus presence. Among 149 S. aureus isolates (2 from the air and 147 from wastewater, including 2 MRSA), 100 isolates were resistant only to penicillin, while 34 isolates showed multi-antibiotic resistance (to penicillin and other drugs). It was found that isolated bacteria were resistant almost strictly to critical and highly important antibiotics in veterinary medicine.ConclusionsIn general, WWTPs workers are occupationally exposed to S. aureus, including MRSA, and other antibiotic- and multi-antibiotic-resistant strains. The highest risk of infection concerns the activities carried out in direct contact with wastewater or devices through which wastewater flows, particularly at the stage of mechanical treatment. A significant source of S. aureus seems to be intensive livestock farming located in the area of the WWTPs under analysis. The study confirms the necessity to disinfect the wastewater discharging into WWTPs.
Źródło:: Medycyna Pracy; 2020, 71, 3; 265-278
0465-5893
2353-1339
Pojawia się w:: Medycyna Pracy
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Applying the Wastewater Quality Index for Assessing the Effluent Quality of Recently Upgraded Meet Abo El-koum Wastewater Treatment Plant
Autorzy:: Ayoub, Mohamed
El-Morsy, Ahmed
Powiązania:: https://bibliotekanauki.pl/articles/1838434.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: assessment
evaluation
multiple linear regression
quality
wastewater
WWTP
wastewater treatment plant
Opis:: The wastewater quality index (WWQI) can be defined as a single value, which reflects the overall wastewater quality related to its input constituent parameters. The major objective of the present study was to investigate the suitability of the effluent quality from Meet Abo El-koum wastewater treatment plant in Egypt for safe disposal based on the wastewater quality index approach. Moreover, statistical analysis was applied to develop a simple model using multiple linear regression (MLR) for accurate prediction of WWQI depending on different wastewater quality parameters. The results indicate good quality of the treated wastewater for safe disposal in general. Moreover, it is apparent that about 17% of the WWQI values reached excellent quality referring to the classification of the WWQI levels. For greater simplicity, a relationship between BOD5 and COD was deduced using linear regression, so that the results of the BOD5 analyses that appear after five days can be skipped. This approximation can be used to calculate WWQI on a specific day given the results of the treated wastewater analyses on that day.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 128-133
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Study on activated sludge flocs morphology and composition in a full-scale wastewater treatment plant in Poland
Autorzy:: Liwarska-Bizukojc, Ewa
Andrzejczak, Olga
Solecka, Monika
Powiązania:: https://bibliotekanauki.pl/articles/207156.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: filamentous bacteria
biomass
activated sludge
WWTP
bakterie nitkowate
biomasa
osad czynny
Opis:: This work is a comprehensive study of a full-scale municipal wastewater treatment plant (WWTP) in the city of Zgierz (Poland) aiming at the estimation of the impact of seasonal changes of temperature on flocs morphology, biomass concentration, quantity of filamentous bacteria, content of polyhydroxybutyrate (PHB) and composition of microinvertebrates in the activated sludge system. Two short-term measurement campaigns, in winter and in summer, were carried out under dry weather conditions. It occurred that lower temperatures (11.1–14.6 °C) had hardly any effect on flocs size or concentration of activated sludge biomass in the full-scale activated sludge system treating municipal wastewater. They did not aggravate the biosynthesis of PHB either. However, decreasing temperature favored the growth of filamentous bacteria and led to the elevation of the sludge volume index (SVI). In spite of this, it did not induce any bulking events. Irrespective of the season, the groups of crawling ciliates, attached ciliates and testate amoebae, indicating good performance of the full-scale plant tested, were predominant.
Źródło:: Environment Protection Engineering; 2019, 45, 2; 69-82
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Analysis and Assesment of the Wastewater Treatment Plant Operation in the City of Kłodzko
Autorzy:: Garbowski, T.
Wiśniewski, J.
Bawiec, A.
Powiązania:: https://bibliotekanauki.pl/articles/125373.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment system
sewage treatment efficiency
WWTP
treatment plant reliability factor
Opis:: In this study, the current operation efficiency of the wastewater treatment plant (WWTP) in the city of Kłodzko in the Lower Silesia Voivodeship (Poland) was analyzed and the predicted amount of the wastewater flowing to the WWTP in a 20-year period (until the year 2036) was estimated. The data on the quality and the quantity of raw (entering to the WWTP) and treated sewage from the years 2012-2016 were analyzed. The five essential pollutants indicators: biochemical oxygen demand (BOD₅), chemical oxygen demand (COD_Cr), total suspended solids (TSS), total nitrogen and total phosphorus, regulated in the water permit were used to evaluate the efficiency of contaminants removal. On the basis of the percentage reduction of the individual pollutants indicators and their acceptable concentrations in the treated sewage, the effectiveness of the operation of the object was determined. Furthermore, a so-called the treatment plant reliability factor (RF) was calculated and its value below 1.0 indicates the correct operation of the wastewater treatment plant. After determining the prospective amount of raw sewage in 2036 (based on the decreasing population in the city) it has been found that the WWTP will work with a significant reserve of capacity and the modernization of the treatment system, leading to a decrease of its capacity should be considered.
Źródło:: Journal of Ecological Engineering; 2018, 19, 2; 114-124
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Charakterystyka wybranych gminnych oczyszczalni ścieków
Characteristic of selected commune wastewater treatment plants
Autorzy:: Ścisłowska, M.
Wolny, L.
Powiązania:: https://bibliotekanauki.pl/articles/297728.pdf
Data publikacji:: 2010
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: ścieki
oczyszczanie ścieków
przepustowość
efekt oczyszczania
sewage
wastewater treatment plant
WWTP
throughput
efficiency
Opis:: Oczyszczalnie ścieków na terenach wiejskich, ze względu na zmienność dopływu i skład ścieków oraz brak laboratoriów umożliwiających ciągłą kontrolę i ewentualne korekty parametrów procesu oczyszczania, powinny być proste i niezawodne. W artykule zostały przedstawione nowoczesne technologie lokalnego oczyszczania ścieków (oczyszczalnie typu ECOLO-CHIEF i BIO-PAK). Oczyszczalnie te, pracujące w oparciu o mechaniczno- biologiczny proces oczyszczania, obsługują podobną liczbę mieszkańców. Oczyszczaniu poddawane są ścieki doprowadzane zarówno siecią kanalizacyjną, jak również dowożone wozami asenizacyjnymi. Przedstawiono analizę porównawczą wybranych wskaźników zanieczyszczeń w ściekach surowych i oczyszczonych dla omawianych oczyszczalni, wykonanych w dwóch próbach. Wszystkie zostały wybudowane po 2000 roku. Przepustowość hydrauliczna badanych oczyszczalni nie przekracza 2000 m³/d, a dobowy dopływ ścieków wynosi ok. 100 m³. Stopień usunięcia zawiesiny ogólnej mieści się w granicach 93 ÷ 99%, natomiast spadek wartości BZT5 i ChZT w zakresie 90 ÷ 98%. W zależności od oczyszczalni i samej metody oczyszczania stopień usunięcia zanieczyszczeń jest różny w każdej z oczyszczalni, jednakże każda z nich spełnia kryteria dotyczące wartości dopuszczalnych stężeń zanieczyszczeń dla ścieków oczyszczonych, odprowadzanych do odbiornika.
In this paper the modern, local wastewater treatment technologies, such as ECOLO-CHIEF, BIO-PAK were presented. These mechanical-biological wastewater treatment plants run mainly in the agricultural areas and serve similar numbers of inhabitants. The wastewater treatment plants for the agricultural areas should be as simple and reliable as possible, because of the fluctuation of sludge feed and wastewater composition, as well as lack of laboratories to control and correct the parameters of the treatment processes. In the paper the comparative analysis of pollution indicators in the raw and treated sewage was presented. All analyzed WWTP were started after 2000 year. The hydraulic throughput of the tested wastewater treatment plants did not exceed 2000 m³ and the daily sewage input is about 100 m³. The effect of the total suspension reduction in the described plants is about 98 ÷ 99% and the BOD5 and COD decrease of about 97 ÷ 98%. Therefore all tested wastewater treatment plants have met the requirements and the new discharge limits for the treated and disposed wastewater.
Źródło:: Inżynieria i Ochrona Środowiska; 2010, 13, 2; 133-146
1505-3695
2391-7253
Pojawia się w:: Inżynieria i Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

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

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Analysis of the periphyton communities at the municipal wastewater treatment plant – case study
Analiza zbiorowisk peryfitonu miejskiej oczyszczalni ścieków
Autorzy:: Babko, R.
Kuzmina, T.
Łagód, G.
Jaromin-Gleń, K.
Powiązania:: https://bibliotekanauki.pl/articles/389216.pdf
Data publikacji:: 2014
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: periphyton
communities
municipal wastewater treatment plants
WWTP
protozoa, metazoa
peryfiton
zbiorowisko
komunalna oczyszczalnia ścieków
pierwotniaki
metazoa
Opis:: There was studied the composition of periphyton and its quantitative development during different stages of wastewater treatment in the flow type purification plant with the biological part working as a modified bardenpho system (Hajdow, Lublin). The periphyton samples were taken from the walls of the object at all main stages of water purification. In the composition of periphyton there were identified the following groups of organisms: algae, fungi, flagellates, testate amoeba, ciliates, rotifers and nematodes. Towards the end of purification process in periphyton of successive chambers, the part of metazoa and protozoa has increased while the abundance of flagellates has decreased. In all of the studied sampling points, the basis of periphyton community was formed by protozoa and metazoa: their part ranged from 75 to 95 %. The periphyton structure regardless of forming conditions shows similar tendencies, determined by the general conditions of a system, in which from initial stages of the purification till its end the amount of organic matters in environment decreases.
W pracy zaprezentowano badania składu peryfitonu i jego rozwój ilościowy podczas kolejnych etapów oczyszczania ścieków w miejskiej oczyszczalni ścieków Hajdów w Lublinie, której część biologiczna pracuje w technologii zmodyfikowanego systemu bardenpho. Próby peryfitonu pobierano z powierzchni ścian obiektów na wszystkich głównych etapach oczyszczania ścieków. W składzie peryfitonu zostały zidentyfikowane następujące grupy organizmów: glony, grzyby, wiciowce, ameby skorupkowe, orzęski, wrotki i nicienie. W kolejnych analizowanych urządzeniach zlokalizowanych w ciągu technologicznym oczyszczalni peryfiton wykazywał wzrost ilości organizmów w obrębie grup metazoa i pierwotniaków, podczas gdy liczebność wiciowców uległa zmniejszeniu. We wszystkich badanych punktach pomiarowych podstawa zbiorowisk peryfitonu utworzona była przez pierwotniaki i metazoa, ich udział wahał się od 75 do 95 %. Struktura peryfitonu badanych urządzeń wykazuje podobne tendencje, uzależnione od warunków panujących w poszczególnych urządzeniach, w którym od pierwszych etapów oczyszczania aż do jego końca ilość dostępnych substancji organicznych maleje.
Źródło:: Ecological Chemistry and Engineering. A; 2014, 21, 4; 403-414
1898-6188
2084-4530
Pojawia się w:: Ecological Chemistry and Engineering. A
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: The periphyton communities within municipal wastewater treatment plant
Zbiorowiska peryfitonu miejskiej oczyszczalni ścieków
Autorzy:: Babko, R.
Kuzmina, T.
Łagód, G.
Jaromin-Gleń, K. M.
Powiązania:: https://bibliotekanauki.pl/articles/125920.pdf
Data publikacji:: 2015
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: periphyton
communities
municipal wastewater treatment plants
WWTP
protozoa
metazoa
peryfiton
zbiorowisko
komunalna oczyszczalnia ścieków
pierwotniaki
Opis:: The study was undertaken to determine the composition of periphyton and its quantitative development during consecutive stages of wastewater treatment in a flow-type purification plant with the biological part serving as a modified Bardenpho system (Hajdow, Lublin, south-eastern Poland).The periphyton was sampled from the wastewater plant walls at all main stages of water purification. The following groups of organisms: algae, fungi, flagellates, testate amoeba, ciliates, rotifers, and nematodes were identified in the composition of periphyton. At the end of the purification process, the proportion of metazoa and protozoa in the periphyton of the successive chambers increased, while the abundance of flagellates declined. In all the sampling points studied, protozoa and metazoa formed the basis of the periphyton community and their proportion ranged from 75 to 95%.
W pracy zaprezentowano badania składu peryfitonu i jego rozwój ilościowy podczas kolejnych etapów oczyszczania ścieków w miejskiej oczyszczalni ścieków Hajdów w Lublinie, której część biologiczna pracuje w technologii zmodyfikowanego systemu Bardenpho. Próbki peryfitonu pobierano z powierzchni ścian obiektów na wszystkich głównych etapach oczyszczania ścieków. W składzie peryfitonu zostały zidentyfikowane następujące grupy organizmów: glony, grzyby, wiciowce, ameby skorupkowe, orzęski, wrotki i nicienie. W kolejnych analizowanych urządzeniach zlokalizowanych w ciągu technologicznym oczyszczalni peryfiton wykazywał wzrost ilości organizmów w obrębie grup metazoa i pierwotniaków, podczas gdy liczebność wiciowców uległa zmniejszeniu. We wszystkich badanych punktach pomiarowych podstawa zbiorowisk peryfitonu utworzona była przez pierwotniaki i metazoa, ich udział wahał się od 75 do 95%.
Źródło:: Proceedings of ECOpole; 2015, 9, 1; 13-17
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Benefits and Risks of Liquid Sewage Sludge Recycling in Agricultural Spreading – A Case Study of WWTP of Skhirat, Morocco
Autorzy:: Achkir, Abdelmajid
Aouragh, Abdelhakim
El Mahi, Mohammed
Lotfi, El Mostapha
Kabriti, Mohamed
Abid, Abdesalam
El Moussaoui, Tawfik
Yagoubi, Maâmar
Powiązania:: https://bibliotekanauki.pl/articles/2202347.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage sludge
WWTP
wastewater treatment plant
Skhirat
Morocco
liquid sludge
physicochemical parameter
bacteriological parameter
heavy metals
agricultural
Opis:: The sewage sludge recycling as an agricultural land resource has received a great deal of attention worldwide. This practice has highly increased because of ever-increasing municipal wastewater production and the awareness of its fertilizing potential as amendment resources. However, there is a concern about land spreading linked mainly to health associated risks due to the presence of diverse pollutants. Thus, sewage spreading management is a key factor the guarantees benefits and avoids risks. The present work aimed to investigate the benefits and risks of sewage sludge (SS) application on agricultural land. To this end, physicochemical main parameters and bacteriological indicators, fecal coliform (FC) and fecal streptococcus (FS), of the sewage sludge generated form WWTP of Skhirat, Morocco, were performed during the period 2018–2019. The obtained results of physicochemical parameters reveal high concentration of organic matter in SS, which reach 96.3 mg/l, and in nutrients. Indeed, total Kjeldahl nitrogen TKN reaches a maximum of 3791 mg/l, potassium K+ reaches 58.71 mg/l. In addition, the average content of FC and FS are around 5.40 CFU/ml and 5.85 CFU/ml, respectively, whereas total phosphorus reaches 508.25 mg/l. In addition, concentrations of micronutrients such as Cl-, SO42-, Ca2+, Mg2+, and Na+ were high, which is interesting and could benefit for both soils and plant. Furthermore, this sewage sludge contains high concentration of heavy metals, mainly zinc and copper which could limit reuse in land spreading. The obtained results were compared to the applied standards and directives established within the framework of the agricultural spreading.
Źródło:: Journal of Ecological Engineering; 2023, 24, 1; 277--288
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Estimation of Per Capita Loading and Treated Wastewater Quality Index in Sharkia Governorate, Egypt
Autorzy:: Aboulfotoh, Ahmed
Heikal, Ghada
Powiązania:: https://bibliotekanauki.pl/articles/2086401.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: domestic wastewater
evaluation
per capita loading
water quality
WWQI
wastewater quality index
WWTP
wastewater treatment plant
Opis:: Monthly reports from June 2017 to May 2018 of Twenty-one wastewater treatment plants in Sharkia were evaluated for the following parameters: temperature, pH, total dissolved solids (TDS), total suspended solids (TSS), chemical oxygen demand (COD), biochemical oxygen demand (BOD), nitrate (NO3), oil and grease (O&G) and Dissolved Oxygen (DO) values. The first aim of this study was to estimate the main wastewater per capita pollution generation per day (PCPL) and found that the 90th percentile PCPL for TSS, COD, BOD, NO3 and O&G were equal to 57.42, 91.59, 59.13, 1.64 and 12.39 (g/capita/day) respectively. The second aim was to assess the performance of the WWTPs in the governorate, by calculating of the wastewater quality index (WWQI) of each plant and for the entire governorate which shows that; 2 WWTPs gives a good performance, 9 WWTPs gives a fair performance, 9 WWTPs gives a marginal performance and 1 WWTP is in bad conditions, the average performance all over the governorate is considered marginal. A simple empirical formula had been established to be used for calculation of the WWQI based on the tested parameters using the multiple linear regression and found to be very effective in predicting the WWQI for the WWTPs.
Źródło:: Journal of Ecological Engineering; 2022, 23, 5; 73--80
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Toksyczność osadów ściekowych z oczyszczalni ścieków
Ecotoxicity of sewage sludge from waste water treatment plant
Autorzy:: Raclawska, H.
Doskarova, S.
Skrobankova, H.
Powiązania:: https://bibliotekanauki.pl/articles/318135.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Przeróbki Kopalin
Tematy:: osad ściekowy
WWTP
toksyczność
metale ciężkie
Daphnia magna (rozwielitki)
Desmodesmus subspicatus
sewage sludge
ecotoxicity
Daphnia magna
heavy metals
Opis:: Tematem artykułu jest określenie przyczyn toksyczności ścieków. Toksyczność badano na rozwielitkach Daphnia magna oraz algach Desmodesmus subspicatus. Dla zmniejszenia toksyczności, do wartości określonej przez ustawę nr 294/2005 Coll., do ekstraktu wodnego dodano różne sorbenty (aktywny węgiel i amberlit - XAD - niejonowy absorbent polimerowy). Ustalono, że mętność wody spowodowana dodaniem aktywnego węgla wpływa na zachowanie Desmodesmus subspicatus. Koncentracja składników odżywczych uwolnionych ze ścieków oraz przez obecność zanieczyszczeń (PAH, AOX i metale ciężkie) także wpływa na zachowanie alg. Dodatek aktywnego węgla zmniejszył koncentrację PAH poniżej limitu, co jest niebezpieczne dla Daphnia magna, ale zmniejszenie zawartości składników szkodliwych w wodzie nie było wystarczające. Nie osiągnięto granicznych wartości EC50 dla Pb, Zn i Cu określonych w literaturze.
Article is oriented on the cause of sludge ecotoxicity. The ecotoxicity was studied on Daphnia magna and algae Desmodesmus subspicatus. For decreasing of water extract exotoxicity to the limit value required by Decree No.294/2005 Coll. the addition of different sorbent (active carbon and Amberlite – XAD nonionic polymeric absorbent) were observed. The behaviour of Desmodesmus subspicatus is influenced by turbidity of water extract after adding of aktive carbon, concentration of nutrients releasing from sludge and also by presence of pollutants (PAHs, AOXs and heavy metals). The addion of activated carbon decrease the concentration of PAHs below the limit which is hazardous for Daphnia magna, but the decreasing of hazardous elements in water extract was not sufficient. The limit value EC50 published in literature for Pb, Zn and Cu was not reached.
Źródło:: Inżynieria Mineralna; 2011, R. 12, nr 1, 1; 39-50
1640-4920
Pojawia się w:: Inżynieria Mineralna
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Antibiotics in WWTP discharge into the Chaobai River, Beijing
Autorzy:: Zhang, C.
Wang, L.
Gao, X.
He, X.
Powiązania:: https://bibliotekanauki.pl/articles/204951.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: antibiotics
PPCPs
pharmaceuticals and personal care products
WWTP
wastewater treatment plant
BAF
biological aerated filter
advanced treatment
Opis:: 22 representative antibiotics, including 8 quinolones (QNs), 9 sulfonamides (SAs), and 5 macrolides (MCs) were selected to investigate their occurrence and removal efficiencies in a Wastewater Treatment Plant (WWTP) and their distribution in the receiving water of the Chaobai River in Beijing, China. Water quality monitoring was performed in an integrated way at different selected points in the WWTP to explore the potential mechanism of antibiotics removal during wastewater treatment. Water quality of the Chaobai River wa s also analyzed to examine environmental distribution in a river ecosystem. The results showed that within all the 22 compounds examined, 10 antibiotics were quantifi ed in wastewater influent, 10 in effluent, and 7 in river. Sulfadiazine (SDZ, 396 ng/L) and Sulfamethazine (SMZ, 382 ng/L) were the dominating antibiotics in the influent. Both the conventional treatment and advanced Biological Aerated Filter (BAF) system was important for the removal of antibiotics from the wastewater. And the concentrations of selected antibiotics were ranged from 0–41.8 ng/L in the effluent-receiving river. Despite the fact that the concentrations were reduced more than 50% compared to effluent concentrations, WWTP discharge was still regarded as a dominant point-source input of antibiotics into the Chaobai River.
Źródło:: Archives of Environmental Protection; 2016, 42, 4; 48-57
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Policy Development of River Water Quality Governance Toward Land Use Dynamics Through a Risk Management Approach
Autorzy:: Namara, Idi
Hartono, Djoko M.
Latief, Yusuf
Moersidik, Setyo Sarwanto
Powiązania:: https://bibliotekanauki.pl/articles/2027788.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: river water pollution
land use
physical project approach
WWTP
wastewater treatment plant
drainage
legal aspect
institutional aspect
risk management
system dynamic
Opis:: The Cisadane River, Tangerang City, is one of the most important rivers in Indonesia. This river provides raw water for Municipal Waterworks (PDAM) of the Tangerang City and Soekarno-Hatta International Airport, but the water quality tends to deteriorate due to pollution. The government has made various efforts to manage the river water quality, but no significant resolution was issued yet. The problem is becoming more complicated due to land-use changes that affect the pollutant load. Therefore, more precise, integrated, and comprehensive management is needed. This study used an approach with various methodologies according to the stages of the research, including; qualitative and quantitative analysis, GIS, statistics, risk management, and System Dynamic. The outcome of this research was the development of the policies in river water quality management, specifically land use manage-ment, separation of drainage channels from domestic sewage channels, enhancement of Wastewater Treatment Plant (WWTP) services coverage, as well as reinforcement of institutional and regulatory aspects, especially in funding commitments.
Źródło:: Journal of Ecological Engineering; 2022, 23, 2; 25-33
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "WWTP" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język