Temat: sewage plant - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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

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Skocz do pozycji: 2.

Tytuł:: Pollution Indicator of a Megawatt Hour Produced in Cogeneration – the Efficiency of Biogas Purification Process as an Energy Source for Wastewater Treatment Plants
Autorzy:: Ciuła, Józef
Kowalski, Sławomir
Wiewiórska, Iwona
Powiązania:: https://bibliotekanauki.pl/articles/24201631.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biogas purification
cogeneration
pollution indicator
renewable energy
sewage treatment plant
Opis:: The sewage treatment plant, as a producer of renewable energy, should make every effort to ensure that the biogas used as a fuel meets the quality requirements, including those of the manufacturers of cogeneration units. Such measures necessitate the application of a conditioning process of biogas in order to remove harmful compounds, so that its parameters ensure failure-free operation of engines. The aim of the research was to evaluate the effectiveness of biogas treatment in the A-type installation using the “wet biogas treatment” technology, and in the B-type installation, which is a comprehensive solution comprising sulfur removal as a result of a simultaneous regeneration of the bed with oxygen, removal of siloxanes on activated carbon, cooling and heating of biogas along with its filtration. The analysis of the results of biogas testing for these two installations demonstrated fundamental qualitative differences for the benefit of the installation B, in which the biogas was characterized by a much lower content, mainly of sulfur, hydrogen sulfide, siloxanes and humidity. The introduced pollution indicator of a megawatt hour produced in cogeneration one has confirmed much higher pollution load from the A-type installation. The hybrid solution applied in the work with simultaneous regeneration of the bed has confirmed the efficiency of biogas conditioning. Such a solution contributes to a safe and reliable operation of the cogeneration system for generating energy from a renewable source, which in turn contributes to the optimization of energy.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 232--245
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Study on the Composition and Environmental Impact of Sewage Sludge
Autorzy:: Jumasheva, Kamshat
Syrlybekkyzy, Samal
Serikbayeva, Akmaral
Nurbaeva, Farida
Kolesnikov, Alexandr
Powiązania:: https://bibliotekanauki.pl/articles/24201791.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sludge
sewage treatment plant
wastewater
mapping
Opis:: The article examinee the characteristics of sewage sludge and its impact on the environment. The description of technical installations, sludge sites in the municipal wastewater treatment systems, which are sources of unfavorable sanitary and epidemiological condition of the studied territory, was presented. A detailed analysis of the structure, composition and morphology of sludge sediment was given. It was found that the sludge presents a loose, rough heterogeneous porous structure represented by the presence of a fibrous substrate with amorphous scaly-crystalline inclusions. During laboratory analyses of the composition of the dry residue, the presence of such types of heavy metals as chromium, manganese, nickel, copper, zinc, lead, cobalt, molybdenum, cadmium was revealed. The excess of permissible concentrations of various elements was observed: chromium more than 7.1 at MPC – 6.0 by 1.18 times; copper more than 3.3 at MPC – 3.0 by 1.1 times; zinc more than 27.3 at MPC – 23.0 by 1.18 times; lead more than 34.3 at MPC – 32.0 by 1.07 times; cobalt more than 6.4 at MPC – 5.0 by 1.28 times; molybdenum more than 6.9 at MPC – 5.0 by 1.3 times. Soil analysis revealed a pH of 7.1, which is neutral, may be optimal for plants; the concentration of calcium, iron and chromium does not exceed the established maximum permissible values. When analyzing the air environment of the territory of the treatment facilities, the presence of gaseous pollutants, such as methane, ammonia, nitrogen dioxide, hydrogen sulfide, carbon monoxide, was established. It has been established that anthropogenic sludge landfills are the sources that create a technogenic load on the atmospheric air, polluting it with methane, since the concentration of methane exceeds the MPC by more than 3 times.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 315--322
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

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: 5.

Tytuł:: Assessment of the reliability of the operation of a sewage treatment plant using Monte Carlo simulation
Autorzy:: Migdał, Karolina
Operacz, Agnieszka
Vaskina, Iryna
Śliz, Paulina
Tavares, Jorge
Almeida, Adelaide
Migdał, Michał
Powiązania:: https://bibliotekanauki.pl/articles/2203571.pdf
Data publikacji:: 2022
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: efficiency
mathematical simulation
Monte Carlo simulation
pollution indicators
probability distribution
sewage treatment plant
Opis:: The aim of the study was to model the operation of a wastewater treatment plant using the Monte Carlo method and selected probability distributions of random variables. Pollutant indices in treated wastewater were analysed, such as: biological oxygen demand (BOD 5), chemical oxygen demand (COD Cr), total suspended solids (TSS), total nitrogen (N tot), total phosphorus (P tot). The preliminary analysis of pollution indicators series included the: calculation of descriptive statistics and assessment of biological degradability of wastewater. The consistency of the theoretical distributions with the empirical ones was assessed using Anderson-Darling statistics. The best-fitting statistical distributions were selected using the percent bias criterion. Based on the calculations performed, it was found that the analysed indicators of pollution in treated wastewater were characterised by an average variability of composition for BOD 5, COD Cr and TSS, and a high variability of composition for N tot and P tot. The best fitted distribution was log-normal for BOD 5, TSS, N tot and P tot and general extreme values for COD Cr. The simulation carried out using the Monte-Carlo method confirmed that there may be problems associated with the reduction of nutrients (N tot and P tot) the analysed wastewater treatment plant. Results of values obtained of the risk values of negative control of wastewater treatment plant operation for biogenic compounds, different from 1, indicate that the number of exceedances at the outflow may be higher than the acceptable one.
Źródło:: Journal of Water and Land Development; 2022, Special Issue; 80--90
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Assessment of Treatment Effect of Heavy Metal Pollution from Sewage Sludge in Wastewater Treatment Plant Discharge in China’s Nanjing MV Industrial Park
Autorzy:: Xu, Lingjuan
Sun, Fengqi
Han, Xiuyan
Powiązania:: https://bibliotekanauki.pl/articles/2174921.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: assessment of treatment effect
heavy metal pollution
niche model
sewage sludge
wastewater treatment plant
Opis:: To explore methods for a comprehensive assessment of the treatment effect of heavy metal pollution in the sewage sludge from China’s industrial parks, we studied the wastewater treatment plant of the Nanjing MV Industrial Park as an example. Eight common heavy metals in sewage sludge – Zinc (Zn), Copper (Cu), Lead (Pb), Mercury (Hg), Chromium (Cr), Nickel (Ni), Arsenic (As), Cadmium (Cd) were studied. The treatment effect of these containments was comprehensively assessed using the absolute niche fitness model, the relative niche model and the spatial niche fitness model. All three models showed that Pb > Cu > Ni > Hg > Cd > Cr > Zn > As in the samples. However, they produced – different numerical values – the absolute niche suitability model < the spatial niche suitability model < and the relative niche suitability model. Therefore, we concluded that special attention should be paid to the carcinogenic risk of As and Cr heavy metals to the person exposed to the sewage sludge.
Źródło:: Rocznik Ochrona Środowiska; 2022, 24; 276--293
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Challenges of the Republic of Serbia in the treatment of waste sludge contaminated with heavy metals
Autorzy:: Prokic, Dunja
Stepanov, Jasna
Stojic, Natasa
Curcic, Ljiljana
Powiązania:: https://bibliotekanauki.pl/articles/2171835.pdf
Data publikacji:: 2022
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: sewage sludge
heavy metals
Republic of Serbia
EU policy
wastewater treatment plant
osad ściekowy
metale ciężkie
Serbia
polityka UE
oczyszczalnia ścieków
Opis:: The interactions of heavy metals and cement phases in the solidification/stabilization (S/S) process have been examined. The S/S method was applied to the waste sludge contaminated with heavy metals to determine the conditions under which the treated materials can be safely disposed of at landfills for inert, non-hazardous, or hazardous waste. Sludge samples were mixed with soil and sand to simulate improper sludge disposal directly into the soil. S/S technology was selected using different cement fractions to treat these contaminated samples. The use of Portland cement or mixtures of different types of cement for the treatment of sludge containing heavy metals is widespread. Samples of leached content were analyzed for the presence of the following metals: arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), and zinc (Zn). The study results lead to the conclusion that the sludge contaminated with heavy metals after the application of S/S with the addition of different cement fractions is transformed into non-hazardous, monolithic material.
Źródło:: Environment Protection Engineering; 2022, 48, 3; 39--52
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Growth Parameters of Herbaceous Plants on Phosphogypsum Dumps with Using Soil Coverings Based on Sewage Sludge
Autorzy:: Prysedskyi, Yuriy
Mashtaler, Oleksandra
Powiązania:: https://bibliotekanauki.pl/articles/1839583.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: phosphogypsum
sewage sludge
cover substrate
herbaceous plant
Opis:: The phosphogypsum dumps are one of the most toxic solid wastes of phosphoric acid, phosphate and phosphorus fertilizers manufacturing enterprises. In the article the possibility of remodeling of phosphogypsum dumps with using the Poaceae family herbaceous plants seeding was considered. On the basis of determination of growth parameters as well as sulfur and fluorine ions accumulation in the plants, the expediency of the dumps surface covering with a ground-covering mixture consisting of sand and sediment of wastewater in the amount of 10% or 20% by weight is established. In the dumps Bromus inermis Leyss., Dactylis glomerata L., Elytrigia pseudocaesia (Pacz.) Procud., Festuca arundinacea L. and Festuca altissima L. are the most suitable plants for cultivation.
Źródło:: Journal of Ecological Engineering; 2021, 22, 4; 20-26
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Value of sewage management devices in rural areas in the opinion of local communities on the example of the Wyszki commune
Wartość urządzeń gospodarki ściekowej na obszarach wiejskich w opinii lokalnych społeczności na przykładzie gminy Wyszki
Autorzy:: Rauba, Krystyna
Powiązania:: https://bibliotekanauki.pl/articles/1845341.pdf
Data publikacji:: 2021
Wydawca:: Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:: contingent valuation method
social acceptability of the investment
home sewage treatment plant
metoda wyceny warunkowej
społeczna akceptacja inwestycji
przydomowa oczyszczalnia ścieków
Opis:: The aim of the article is to present the public reception of the implementation of house-hold-level sewage treatment plants in the Municipality of Wyszki. The CVM method of conditional valuation was used to learn the opinion of residents on the implementation of domestic sewage treatment plants, using the willingness test for payment (WTP). The method of conditional valuation was carried out based on a survey. The research trial was conducted using direct interviews among 100 inhabitants of the commune of Wyszki. The questionnaire contained, among other things, questions about the types of sewage collection and treatment system in the municipality. For the article, the answers of the commune residents who were not connected to the sewage system or had a holding tank were considered.
Celem artykułu jest przedstawienie społecznego odbioru realizacji przydomowych oczyszczalni ścieków na terenie Gminy Wyszki. Do poznania opinii mieszkańców w kwestii realizacji przydomowych oczyszczani ścieków posłużono się metodą wyceny warunkowej CVM, wykorzystującą bada-nie gotowości do zapłaty (WTP). Metoda wyceny warunkowej została zrealizowana w oparciu o przeprowadzone badania ankietowe. Próba badawcza przeprowadzona została metodą wywiadu bezpośredniego wśród 105 mieszkańców gminy Wyszki. Ankieta zawierała między innymi pytania dotyczące rodzajów systemu odprowadzania i oczyszczania ścieków na terenie gminy. Na potrzeby artykułu wzięto pod uwagę odpowiedzi mieszkańców gminy, którzy nie byli podłączeni do kanalizacji lub posiadali zbiornik bezodpływowy.
Źródło:: Ekonomia i Środowisko; 2021, 2; 40-55
0867-8898
Pojawia się w:: Ekonomia i Środowisko
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Vegetable oil plant wastewater treatment by bacterial isolates : a study in the city of Hila, Iraq
Autorzy:: Salim, Hanan Kareem
Al-Ahmed, Suad Ghali Kadhim
Powiązania:: https://bibliotekanauki.pl/articles/2048496.pdf
Data publikacji:: 2021
Wydawca:: Instytut Technologiczno-Przyrodniczy
Tematy:: biotreatment
polymerase chain reaction
PCR
sewage
vegetable oil plant
wastewater
Opis:: The present study was to reflect the use of some bacteria in the treatment and removal of pollutants in three selected wastewater sites, including a vegetable oil plant (viz. Al-Etihad Food Industries), the main wastewater treatment station in the city of Hila, and Al-Hila River water from October 2019 to January 2020. The bacterial isolates identified in these three sites were Klebsiella pneumoniae, Escherichia coli, Enterobacteria cloacae, Pseudomonas aeruginosa, Thalasobacillus devorans, Acinetobacter baumannii, and Bacillus subtilis. The molecular study of the bacterial isolates involved the detection of bacterial genera using the polymerase chain reaction (PCR). The results showed that water had a variable nature, depending on the substances in it. It recorded varying chemical and physical property values, ranging between 6.36 and 7.82 for pH and from 2500 to 7100 mg∙dm-3 for total alkalinity. Additional values were 713–2051 μS∙cm-1 for electrical conductivity (EC), 5.90–9.80 mg∙dm-3 for chemical oxygen demand (COD), and 480–960 mg∙dm-3 for total hardness. The given values were also 0.20–0.65 μg∙dm-3, 0.03-0.23 μg∙dm-3, and 0–107 mg∙dm-3 for nitrite (NO2), phosphate (PO4) oils, respectively.
Źródło:: Journal of Water and Land Development; 2021, 51; 163-167
1429-7426
2083-4535
Pojawia się w:: Journal of Water and Land Development
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Analiza gospodarki osadowej i biogazowo-energetycznej w oczyszczalni ścieków w Opolu
Analysis of sewage sludge and biogas-energy management at the Opole wastewater treatment plant
Autorzy:: Szczyrba, Paulina
Masłoń, Adam
Czarnota, Joanna
Olszewski, Kamil
Powiązania:: https://bibliotekanauki.pl/articles/399850.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: osady ściekowe
fermentacja beztlenowa
biogaz
energochłonność oczyszczalni ścieków
sewage sludge
anaerobic digestion
biogas
energy consumption
wastewater treatment plant
Opis:: Zwiększające się wymagania oczyszczania ścieków oraz rozwój systemów oczyszczania ścieków, unieszkodliwiania i przeróbki osadów ściekowych powodują znaczny wzrost zapotrzebowania na energię elektryczną i cieplną. Alternatywnym sposobem na pozyskiwanie taniej energii jest wykorzystywanie biogazu wytworzonego w procesie fermentacji z osadów ściekowych. W pracy przedstawiono analizę gospodarki osadowej i biogazowo-energetycznej w oczyszczalni ścieków w Opolu w aspekcie uzyskiwania biogazu i jego wykorzystania do produkcji energii elektrycznej. Układ biogazowo-energetyczny w rozpatrywanym okresie funkcjonował prawidłowo. W dwóch agregatach prądotwórczych wyprodukowano z biogazu łącznie 7,26 GWh energii elektrycznej, co pozwoliło na pokrycie blisko 35% zapotrzebowania na energię elektryczną.
Increasing requirements of wastewater treatments and the development of wastewater treatment and sewage sludge systems cause a significant increase in the demand for electricity and heat. An alternative way to obtain cheap energy is to use biogas produced in the anaerobic digestion process from sewage sludge. The paper presents an analysis of sewage sludge and biogas-energy management at the wastewater treatment plant in Opole in the aspect of obtaining biogas and its use for electricity production. The biogas-energy system was functioning properly in 2017–2019. A total of 7.26 GWh of electricity was produced from biogas in two power generators, which allowed to cover nearly 35% of the demand for electricity.
Źródło:: Inżynieria Ekologiczna; 2020, 21, 2; 26-34
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Assessment of the possibilities of agricultural use of sewage sludge from small, medium and large wastewater treatment plants
Autorzy:: Czarnota, Joanna
Kurcek, Justyna
Twaróg, Natalia
Powiązania:: https://bibliotekanauki.pl/articles/2172369.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: municipal sewage sludge
heavy metals
sludge
fertilisation properties
sanitary properties
wastewater treatment plant PE
komunalne osady ściekowe
metale ciężkie
nawożenie
właściwości sanitarne
oczyszczalnia ścieków
Opis:: The management of sewage sludge, generated at various stages of wastewater treatment, is still a significant problem. One of the possibilities of using sewage sludge, which is a valuable source of nutrients (carbon, nitrogen, phosphorus), is its use for agricultural purposes. Sludge can be used for fertilising when it meets the requirements with regard to the content of heavy metals, the number of eggs of intestinal parasites and Salmonella bacteria, and when the amount of organic substances and fertilising components is sufficient. That is why it is so important to know exactly the characteristics of sewage sludge. This allows determination of whether it can be used as fertiliser in agriculture. The study assesses the agricultural use of sewage sludge from three mechanical and biological wastewater treatment plants of different PE, produced in 2016-2018. The analysis was carried out on the basis of the physicochemical parameters of the sludge. Particular attention was paid to the fertilisation and sanitary properties, as well as the presence of heavy metals, which were largely influenced by such factors as: the size of the wastewater treatment plant, the method of sewage sludge treatment and sludge management, and the nature of the catchment area. The concentrations of particular substances in sludge from wastewater treatment plants differed from one another, and sometimes these were very large differences. The conducted analysis showed that sewage sludge, from both small and large wastewater treatment plants, has a significant potential as agricultural fertiliser due to the presence of minerals such as nitrogen, phosphorus and calcium.
Źródło:: Czasopismo Inżynierii Lądowej, Środowiska i Architektury; 2020, 37, 67; 19--32
2300-5130
2300-8903
Pojawia się w:: Czasopismo Inżynierii Lądowej, Środowiska i Architektury
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Effect of carbon source and nitrate concentration on denitrification of high-nitrate wastewater
Autorzy:: Horová, Dorota
Bezucha, Petr
Růžičková, Iveta
Powiązania:: https://bibliotekanauki.pl/articles/207338.pdf
Data publikacji:: 2020
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: activated sludge
biological denitrification
sewage treatment plant
osad czynny
oczyszczalnia ścieków
denitryfikacja biologiczna
Opis:: The aim of the present work was to study the applicability of the activated sludge from a municipal wastewater treatment plant for high strength nitrate denitrification process. A sequenced batch reactor operated at initial nitrate concentration in the range from 750 to 8500 mg NO⁻₃_-N/dm³ .The effectiveness of various carbon sources on denitrification rate and nitrite accumulation was studied. The average specific denitrification rate was in the range from 58 to 62 mg NO⁻₃_-N /(g VSS·h) for ethanol, glycerol, molasses and whey. The denitrification with methanol was not effective.
Źródło:: Environment Protection Engineering; 2020, 46, 1; 73-89
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Social evaluation of the implementation of household-level sewage treatment plants on the example of the municipality of Juchnowiec Kościelny
Społeczna wycena realizacji przydomowych oczyszczalni ścieków na przykładzie gminy Juchnowiec Kościelny
Autorzy:: Rauba, Krystyna
Szerenos, Karolina
Powiązania:: https://bibliotekanauki.pl/articles/95983.pdf
Data publikacji:: 2020
Wydawca:: Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:: contingent valuation method
social acceptability of the investment
home sewage-treatment plant
metoda wyceny warunkowej
społeczna akceptacja inwestycji
przydomowa oczyszczalnia ścieków
Opis:: The aim of the article is to present the public reception of the implementation of household-level sewage treatment plants in the Municipality of Juchnowiec Kościelny. The CVM method of conditional valuation was used to learn the opinion of residents on the implementation of domestic sewage treatment plants, using the willingness test for payment (WTP). The method of conditional valuation was carried out on the basis of a survey. The research trial was conducted by means of direct interview among 100 inhabitants of the commune of Juchnowiec Kościelny. The questionnaire contained, among other things, questions about the types of sewage collection and treatment system in the municipality. For the purposes of the article, the answers of the commune residents who were not connected to the sewage system or had a holding tank were taken into account.
Celem artykułu jest przedstawienie społecznego odbioru realizacji przydomowych oczyszczalni Ścieków na terenie Gminy Juchnowiec Kościelny. Do poznania opinii mieszkańców w kwestii realizacji przydomowych oczyszczani ścieków posłużono się metodą wyceny warunkowej CVM, wykorzystującą badanie gotowości do zapłaty (WTP). Metoda wyceny warunkowej została zrealizowana w oparciu o przeprowadzone badania ankietowe. Próba badawcza przeprowadzona została metodą wywiadu bezpośredniego wśród 100 mieszkańców gminy Juchnowiec Kościelny. Ankieta zawierała między Innymi pytania dotyczące rodzajów systemu odprowadzania i oczyszczania ścieków na terenie gminy. Na potrzeby artykułu wzięto pod uwagę odpowiedzi mieszkańców gminy, którzy nie byli podłączeni do kanalizacji lub mieli zbiornik bezodpływowy.
Źródło:: Ekonomia i Środowisko; 2020, 3; 110-125
0867-8898
Pojawia się w:: Ekonomia i Środowisko
Dostawca treści:: Biblioteka Nauki

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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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