scholarly journals Edukacja ekologiczna prowadzona przez Grupową Oczyszczalnię Ścieków ŁódzkiejAglomeracji Miejskiej i jej znaczenie w równoważeniu rozwoju

2019 ◽  
pp. 23-31
Author(s):  
Paweł Dziemdziela
Keyword(s):  
Sustainable Development ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Ecological Education ◽  
Urban Wastewater ◽  
The Impact

The article presents the role of ecological education and its impact on sustainable development on the example of the Group Urban Wastewater Sewage Treatment Plant. The results of research on the impact of ecological education on residents were presented.

scholarly journals Działalność informacyjno-promocyjna Grupowej Oczyszczalni Ścieków Łódzkiej Aglomeracji Miejskiej w kształtowaniu świadomości ekologicznej

2017 ◽  
pp. 47-54
Author(s):  
Paweł Dziemdziela
Keyword(s):  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Ecological Education ◽  
The Impact

The article presents the role of ecological education as a form of information and promotion activities based on the example of Group Sewage Treatment Plant of Łódź City Agglomeration in Łódź. It presents the results of research on the impact of ecological education on residents and the value of the advertising equivalent (AVE) obtained depending on the type of medium.

scholarly journals Identification of Eco-friendly Practices in the Industries of EGREE Region for Sustainable Development, Andhra Pradesh, India

2021 ◽  
Vol 4 (1) ◽  
pp. 33
Author(s):  
Teki Surayya ◽  
Gudivada Rajendra Prasad ◽  
Arigela Srinivasa Rao ◽  
Jetti Srinivasa Ravisankar ◽  
Matcha Johar Khrisna ◽  
...  
Keyword(s):  
Sustainable Development ◽  
Working Conditions ◽  
Small And Medium Enterprises ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Effluent Treatment ◽  
Coal Consumption ◽  
Estuarine Ecosystem ◽  
Godavari River

This study has been conceived with the basic objective to investigate the role played by industries in the East Godavari River Estuarine Ecosystem (EGREE) region to reduce the level of industrial pollution and other eco-friendly initiatives taken for eco-friendly and sustainable development. Effluent treatment systems prevalent in the majority of the studied industries are in working conditions. 57% of industries' effluent treatment plants are working conditions, 29% of the industries are using landing filling methods for disposal of agro-based waste. There is a strong common understanding among the EGREE region industries to lower the CO2 footprint by substituting coal consumption with bio-fuel. In some companies like ITC, biofuel consumption is 80%, and the remaining 20% is Coal. Government and policymakers have to make provision for industrial waste disposal, especially for small and medium enterprises (SME).  Waste transporting cost is high for SME. Effluent treatment plant (ETP) and sewage treatment plant (STP) conditions to be verified by the pollution control board periodically

Seasonal and Spatial Nutrient Dynamics in Saronikos Gulf: The Impact of Sewage Effluents from Athens Sewage Treatment Plant

2013 ◽  
pp. 111-130 ◽  
Author(s):  
A. Pavlidou ◽  
H. Kontoyiannis ◽  
N. Zarokanelos ◽  
I. Hatzianestis ◽  
G. Assimakopoulou ◽  
...  
Keyword(s):  
Nutrient Dynamics ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Sewage Effluents ◽  
The Impact

scholarly journals Ciliated protozoa in the impact zone of the Uzhgorod treatment plant

2018 ◽  
Vol 30 ◽  
pp. 02008 ◽  
Author(s):  
Volodimir Pliashechnyk ◽  
Yaroslav Danko ◽  
Grzegorz Łagód ◽  
Jakub Drewnowski ◽  
Tatiana Kuzmina ◽  
...  
Keyword(s):  
Wide Spectrum ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Wastewater Discharge ◽  
Local Conditions ◽  
Ciliate Species ◽  
Before And After ◽  
Quantitative Development ◽  
The Impact

This paper presents the results of studies on the Uzh River (Ukraine, Zakarpattia Oblast) near the effluent point of a sewage treatment plant in Uzhgorod. The samples were taken at various sites of the treatment plant along the stages of purification process, as well as in the river, at a number of different points above and below the wastewater discharge. At each of these objects, the temperature and O2 were measured. The structure of ciliate assemblage was analyzed along the stages of the treatment process in the WWTP and in the river before and after the sewage discharge. A total of 26 ciliate taxa were observed and included in the analysis. All the studied stations were considered as a continuum in which populations of protozoa spread freely according to their ecological preferences. The majority of ciliate species were encountered in each of the examined stations, but their quantitative development differed significantly, reflecting their response to the environmental conditions at the stations. The analysis of the qualitative and quantitative distribution of ciliate populations by the stations enabled to group them in respect to the peculiarities of the local conditions. The study showed that the majority of the ciliate species, typical of bioreactors, are equally common at the stations of the Uzh River below wastewater discharges. The ciliate assemblage in the oxygen gradient demonstrated a wide spectrum of ecological tolerance at the species level. These findings confirm that ciliates are very good indicators of the environmental quality, provided that detailed information about their environmental priorities is available.

scholarly journals Evaluation of the impact of explanatory variables on the accuracy of prediction of daily inflow to the sewage treatment plant by selected models nonlinear

2017 ◽  
Vol 43 (3) ◽  
pp. 74-81 ◽  
Author(s):  
Bartosz Szeląg ◽  
Lidia Bartkiewicz ◽  
Jan Studziński ◽  
Krzysztof Barbusiński
Keyword(s):  
Prediction Models ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Municipal Sewage ◽  
Support Vector ◽  
Prediction Errors ◽  
Explanatory Variables ◽  
Input Variables ◽  
The Impact

AbstractThe aim of the study was to evaluate the possibility of applying different methods of data mining to model the inflow of sewage into the municipal sewage treatment plant. Prediction models were elaborated using methods of support vector machines (SVM), random forests (RF), k-nearest neighbour (k-NN) and of Kernel regression (K). Data consisted of the time series of daily rainfalls, water level measurements in the clarified sewage recipient and the wastewater inflow into the Rzeszow city plant. Results indicate that the best models with one input delayed by 1 day were obtained using the k-NN method while the worst with the K method. For the models with two input variables and one explanatory one the smallest errors were obtained if model inputs were sewage inflow and rainfall data delayed by 1 day and the best fit is provided using RF method while the worst with the K method. In the case of models with three inputs and two explanatory variables, the best results were reported for the SVM and the worst for the K method. In the most of the modelling runs the smallest prediction errors are obtained using the SVM method and the biggest ones with the K method. In the case of the simplest model with one input delayed by 1 day the best results are provided using k-NN method and by the models with two inputs in two modelling runs the RF method appeared as the best.

scholarly journals Influence of storms on the emission of pollutants from sewage into waters

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Monika Suchowska-Kisielewicz ◽  
Ireneusz Nowogoński
Keyword(s):  
Environmental Protection Agency ◽  
Negative Impact ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Heavy Precipitation ◽  
Climatic Conditions ◽  
Storm Water Management Model ◽  
Rainy Weather ◽  
The Impact

AbstractDuring heavy precipitation, chemical and biological pollutants from urban and agricultural areas enter the waters from storm overflows as a result of infiltration and inflow, as well as via uncontrolled outflows from water treatment plants. Infiltration and inflow of rainwater into sewers is an especially popular and major worldwide problem. Climate forecasts indicate changes in climatic conditions towards an increase in the intensity and frequency of torrential rainfalls. It may therefore be assumed that the negative impact of rainwater on water quality will increase. This article attempts to address the question of the impact of pollution from wastewater introduced into water during rainy weather to the receiver. The assessment of the impact of rainfalls on a receiver was carried out on the basis of a simulation of pollution loads from sewage introduced into a river by storm overflows based on data from monitoring the amount of rainfall and simulating the operation of storm overflows using Environmental Protection Agency Storm Water Management Model (EPA SWMM). The obtained results were compared with the pollutant loads discharged at the same time from the sewage treatment plant (STP). In addition, the article assesses possible improvement solutions to reduce the negative impact of storm overflows on water.

Size fractionation of COD in urban wastewater from a combined sewer system

2004 ◽  
Vol 50 (12) ◽  
pp. 79-86 ◽  
Author(s):  
D. Marani ◽  
V. Renzi ◽  
R. Ramadori ◽  
C.M. Braguglia
Keyword(s):  
Large Fraction ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Complete Removal ◽  
Primary Treatment ◽  
Size Fractionation ◽  
Urban Wastewater ◽  
Physical Fractionation ◽  
Coagulation Tests

The objective of this work was to determine the partitioning of the pollutant load in urban wastewater in order to improve the conventional sewage treatment. In addition to settling tests, physical fractionation of COD in the degritted influent of Roma-Nord sewage treatment plant was performed via sequential filtration through sieves and membrane filters of the following pore size: 150-100-50-25-1-0.2 μm, and 100 kD (about 0.02 μm). Biodegradability studies were also performed on the different size fractions. Size fractionation showed that COD in Roma-Nord sewage is predominantly associated with settleable and supracolloidal (> 1 μm) particles, each size range including about 40% of total COD. Biodegradability tests indicated that the large fraction of COD associated with supracolloidal particles, which are not removed in the primary treatment, is characterised by slow degradability. This suggests that removal of these particles prior to biological treatment may greatly improve the overall treatment scheme. Preliminary pilot plant coagulation tests with lime at pH 9 showed that lime-enhanced primary treatment may increase COD removal efficiencies from typical 30-35% up to 65-70%, by inducing almost complete removal of the COD fraction associated with supracolloidal particles.

The Study on the Impact of Microbial Community Structure by the Different Intermediate Concentration of Pharmaceutical Wastewater

2013 ◽  
Vol 647 ◽  
pp. 430-433
Author(s):  
Fu Guang Gu ◽  
Zhao Bo Chen ◽  
Xiao Yu Wang ◽  
Hong Cheng Wang ◽  
Jin Yang Hao
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Pharmaceutical Wastewater ◽  
Pharmaceutical Waste ◽  
The Impact ◽  
Intermediate Concentration

There is a certain amount of intermediate and other ingredient in pharmaceutical wastewater .These pharmaceutical will have a big effect on microorganism in sewage treatment plant. So this article discussed the study one impact of microbial community structure by the different intermediate concentration of Pharmaceutical waste water .The study shows that Microbial community structure are diversity in the pharmaceutical wastewater treatment plant.With the change of the environment some microbes are reduced or even disappear and some microbes are gradually produce. The microbes which have a big effect by different environment have adapt to 7-ACA, won the resistance and become a part of microbial community in stationary phase.

scholarly journals Efficiency of Sequential Batch Reactor (SBR) based sewage treatment plant and its discharge impact on Dal Lake, Jammu & Kashmir, India

2020 ◽  
Vol 5 (4) ◽  
pp. 517-524
Author(s):  
Mukesh Ruhela ◽  
Adil Ahmad Wani ◽  
Faheem Ahamad
Keyword(s):  
Removal Efficiency ◽  
Batch Reactor ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Continuous Increase ◽  
Sequential Batch Reactor ◽  
Dal Lake ◽  
Confluence Zone ◽  
The Impact

Dal Lake is the second largest and most beautiful Lake in the state of Jammu and Kashmir and is the major centre of tourist activities. Due to the continuous increase in the population, the generation of domestic wastewater also increased. The present study was carried out to assess the efficiency of Sequential Batch Reactor (SBR) based Sewage Treatment Plant (STP) located at Brari Numbal and its discharge impact on the physicochemical properties of Dal Lake. The sample was collected from the selected sampling sites (inlet and outlet of SBR based STP, upstream, confluence zone, and downstream of Dal Lake) for five months (November 2019 to March 2020) and analysed using the standard methodologies. The plant shows maximum removal efficiency for BOD (79.85%) although the effluent BOD was found above the standard limit. The minimum removal efficiency of the plant was observed in the case of pH (3.46%). The gain in the case of DO was observed +851.55%. All the sites of Dal Lake were found polluted but the confluence zone and downstream were more polluted in comparison to the upstream due to the discharge of STP outlet into Dal Lake with higher BOD and COD (21.39% increase in BOD, 43.29% increase in COD; 80.10% increase in iron, 65.61% increase in ammonical nitrogen, and 101% increase in phosphate concentration). Besides this, discharge of the huge quantity of untreated wastewater from the city into the lake is also responsible for the degraded water quality of Dal Lake. It can be concluded that efficiency of the plant was in moderate condition and it needs further modifications. This is the first study showing the impact of SBR-STP effluent on Dal Lake.

scholarly journals ROLE OF PHYCOREMEDIATION IN DOMESTIC WASTEWATER TREATMENT

2020 ◽  
Vol 5 (2) ◽  
pp. 53-57
Author(s):  
Nandini Moondra ◽  
Namrata D Jariwala ◽  
Robin A Christian
Keyword(s):  
Wastewater Treatment ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Secondary Treatment ◽  
Organics Removal ◽  
Treated Effluent ◽  
Domestic Wastewater Treatment

Conventional domestic wastewater treatment in most developing countries is confined to secondary treatments, mainly focusing on solids and organics removal, which results in eutrophication when the effluents are discharged into receiving bodies. Thus, to resolve the issues associated with the conventional treatment system, in the present study, microalgae was introduced in the primary treated effluent collected from a sewage treatment plant to study the efficiency of the system in reducing eutrophication and other challenges of secondary treatment. Phycoremediation is an effective and eco-friendly treatment alternative that reduced the primary-treated effluent’s PO4-P, NH3-N and COD concentration to 97.89%, 98.81%, and 88.24%, respectively at the identical HRT practiced for secondary treatment. One-way ANOVA was also conducted to determine the effectiveness of the system statistically. The experimental and statistical analysis proved that microalgal treatment could resolve the challenges of conventional secondary treatments if adopted for domestic wastewater.

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