Evaluation of energy consumption during aerobic sewage sludge treatment in dairy wastewater treatment plant

2017 ◽  
Vol 153 ◽  
pp. 135-139 ◽  
Author(s):  
Wojciech Dąbrowski ◽  
Radosław Żyłka ◽  
Paweł Malinowski
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Dairy Wastewater ◽  
Sludge Treatment ◽  
Sewage Sludge Treatment

Potentials and limits of anaerobic digestion of sewage sludge: Energy self-sufficient municipal wastewater treatment plant?

2012 ◽  
Vol 66 (6) ◽  
pp. 1277-1281 ◽  
Author(s):  
P. Jenicek ◽  
J. Bartacek ◽  
J. Kutil ◽  
J. Zabranska ◽  
M. Dohanyos
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Municipal Wastewater ◽  
Biogas Production ◽  
Treatment Plant ◽  
Self Sufficiency ◽  
Digestion Efficiency

Anaerobic digestion is the only energy-positive technology widely used in wastewater treatment. Full-scale data prove that the anaerobic digestion of sewage sludge can produce biogas that covers a substantial amount of the energy consumption of a wastewater treatment plant (WWTP). In this paper, we discuss possibilities for improving the digestion efficiency and biogas production from sewage sludge. Typical specific energy consumptions of municipal WWTPs per population equivalent are compared with the potential specific production of biogas to find the required/optimal digestion efficiency. Examples of technological measures to achieve such efficiency are presented. Our findings show that even a municipal WWTP with secondary biological treatment located in a moderate climate can come close to energy self-sufficiency. However, they also show that such self-sufficiency is dependent on: (i) the strict optimization of the total energy consumption of the plant, and (ii) an increase in the specific biogas production from sewage sludge to values around 600 L per kg of supplied volatile solids.

scholarly journals Sewage sludge treatment for fertilizer production using biotechnologies: perspectives for the Bezludivka wastewater treatment plant, Kharkiv

2019 ◽  
pp. 425-431
Author(s):  
Lidija Svirenko ◽  
Natasha Suchkova
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Sludge Treatment ◽  
Plant Environment ◽  
Enteric Parasites ◽  
Cr Concentration

Complex "Dikanivka" & "Bezludivka" wastewater treatment plant (WWTP, Kharkiv) is oneof the biggest in Ukraine. Mixture of industrial and domestic wastewater is treated on thestation. Great volume of sewage sludge has been produced and accumulated for forty years ofthe plant operation, Environment of the region has been affected rather seriously in result ofout-of-date sludge dewatering system exploitation and heaps of dewatered sludge on theterritory of the plant Environment stabilization in the area of sludge treatment is an urgentproblem of the region, Phytoremediation as a promising natural technology for the purpose isdiscussed in the article.Sewage sludge is rich in organic matter and nutrient elements (nitrogen and phosphates)therefore it could be applied for soil fertilization. On the other hand, due to high heavy metals(Cd, Ni, Cu, Cr) concentration in sludge, contamination with enteric parasites, pH less than5,5 there is restriction for sludge application in agricultural production,Willow (Salix spp,) is discussed as a plant for phytoremediation of the territory and forsubstratum properties melioration because of its availability to accumulate heavy metals,regulate concentration of nutrients, high biomass production and high environmentaltolerance.Experiment in situ has to be carried for the plant-remediater selection and for investigation ofsludge agricultural properties dynamic.

A study of the digestion process of sewage sludge from a dairy wastewater treatment plant to determine the composition and load of reject water

2014 ◽  
Vol 9 (1) ◽  
pp. 71-78 ◽  
Author(s):  
W. Da˛browski
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Research Work ◽  
Treatment Plant ◽  
Ammonia Nitrogen ◽  
Dairy Wastewater ◽  
High Concentration ◽  
Reject Water

The issue of reject water has to be considered in almost every biological municipal or industrial wastewater treatment plant (WWTP) that applies aerobic or anaerobic digestion of sewage sludge. Reject water is usually returned to the beginning of the treatment process, which results in periodical disturbances in stable and efficient sewage treatment. Due to planned modernization of one of the biggest dairy WWTPs in Poland, a laboratory scale research has been carried out to determine quality characteristics of reject water. Aerobic and anaerobic digestion was applied to a mixture of two kinds of sludge: excessive and flotation. According to research performed by the author results (range value) of reject water were: 7.3 to 12.9 mg N-NH4/L after aerobic and 460.0 to 574.0 mg N-NH4/L after anaerobic digestion. The study has confirmed a higher value of organic substances in reject water after anaerobic digestion in comparison with aerobic. Due to high concentration of ammonia nitrogen in reject water obtained during co-digestion of excessive and flotation sludge, a separated system for its treatment should be applied. The results of research work presented in this paper provided a base for the project of the pilot installation with constructed wetland.

EVALUATION OF BIOMETHANE YIELDS FROM HIGH-ENERGY ORGANIC WASTE AND SEWAGE SLUDGE: A PILOT STUDY FOR A WASTEWATER TREATMENT PLANT

2019 ◽  
Vol 18 (9) ◽  
pp. 2023-2034 ◽  
Author(s):  
Agnieszka A. Pilarska ◽  
Krzysztof Pilarski ◽  
Boguslawa Waliszewska ◽  
Magdalena Zborowska ◽  
Kamil Witaszek ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Pilot Study ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
Organic Waste ◽  
Treatment Plant ◽  
High Energy

scholarly journals Environmental monitoring of Aichi virus and human bocavirus in samples from wastewater treatment plant, drain, and River Nile in Egypt

2019 ◽  
Vol 18 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Mohamed N. F. Shaheen ◽  
Sahar E. Abd El-Daim ◽  
Nehal I. Ahmed ◽  
Elmahdy M. Elmahdy
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Wastewater Treatment Plant ◽  
River Sediment ◽  
Treatment Plant ◽  
Drainage Water ◽  
Aichi Virus ◽  
Human Bocavirus ◽  
River Nile ◽  
Water Drain

Abstract Wastewater plays a major role in water pollution causing transmission of several viral pathogens, including Aichi virus (AiV) and human bocavirus (HBoV), associated with gastrointestinal illness in humans. In this study, we investigated the presence of AiV and HBoV in aquatic, sludge, sediment matrices collected from Abu-Rawash wastewater treatment plant (WWTP), El-Rahawy drain, Rosetta branch of the River Nile in Egypt by conventional polymerase chain reaction (PCR). AiV RNA was detected in 16.6% (2/12), 8.3% (1/12), 8.3% (1/12), 22% (16/72), 12.5% (3/24), 4% (1/24), and 0/24 (0%) of untreated raw sewage, treated sewage, sewage sludge, drainage water, drain sediment, river water, and river sediment, respectively. On the other hand, HBoV DNA was detected in 41.6% (5/12), 25% (3/12), 16.6% (2/12), 48.6% (35/72), 29% (7/24), 3/24 (12.5%), 4% (1/24) of untreated raw sewage, treated raw sewage, sewage sludge, drainage water, drain sediment, river water, and river sediment, respectively. This study provides data on the presence of these viruses in various types of water samples that are valuable to environmental risk assessment. In addition, the current study demonstrates the importance of environmental monitoring as an additional tool to investigate the epidemiology of AiV and HBoV circulating in a given community.

scholarly journals Analysis and Forecasting of the Energy Consumption in Wastewater Treatment Plant

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
ZhenHua Li ◽  
ZhiHong Zou ◽  
LiPing Wang
Keyword(s):  
Wastewater Treatment ◽  
Energy Consumption ◽  
Energy Saving ◽  
Wastewater Treatment Plant ◽  
Rbf Neural Network ◽  
Influence Factors ◽  
Treatment Plant ◽  
Fuzzy Clustering Method ◽  
Complete Set ◽  
The Relationship

Wastewater treatment plant (WWTP) is the energy-intensive industries. Energy is consumed at every stage of wastewater treatment. It is the main contributor to the costs of WWTP. Analysis and forecasting of energy consumption are critical to energy-saving. Many factors influence energy consumption. The relationship between energy consumption and wastewater is complex and challenging to identify. This article employed the fuzzy clustering method to categorize the sample data of WWTP and analyzed the relationship between energy consumption and the influence factors in different categories. The study found that energy efficiency in various categories was changed and the same influence factors in different types had different influence intensity. The Radial Basis Function (RBF) neural network was used to forecast energy consumption. The data from the complete set and categories was adopted to train and test the model. The results show that the RBF model using the date from the subset has better performance than the multivariable linear regression (MLR) model. The results of this study provided an essential theoretical basis for energy-saving in WWTP.

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