Life Cycle Inventory of Anaerobic Digestion at the Wastewater Treatment Plant of a Dairy Company

Effect and benefits of a product or service could be analyzed and evaluated by life cycle assessment during the whole life cycle. Urban sewage treatment plants could improve and control urban water pollution escalating, but it also had certain harm to environment. Effect and benefits of urban wastewater treatment plant A and B were analyzed and evaluated, 13 factors were selected, and comprehensive benefits were researched quantificationally using the method of analytic hierarchy process. It found that urban wastewater treatment plant A who applied A/O process had better benefits than urban wastewater treatment plant B who applied BIOLAK process.

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Case study on technical feasibility of galvanic wastewater treatment plant based on life cycle assessment and costing approach

Journal of Environmental Chemical Engineering ◽

10.1016/j.jece.2020.104535 ◽

2020 ◽

Vol 8 (6) ◽

pp. 104535

Author(s):

Valentina Innocenzi ◽

Federica Cantarini ◽

Alessia Amato ◽

Barbara Morico ◽

Nicolò Maria Ippolito ◽

...

Keyword(s):

Wastewater Treatment ◽

Life Cycle Assessment ◽

Life Cycle ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Technical Feasibility

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

Water Science & Technology ◽

10.2166/wst.2012.317 ◽

2012 ◽

Vol 66 (6) ◽

pp. 1277-1281 ◽

Cited By ~ 38

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.

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Environmental performance of a full-scale wastewater treatment plant applying Life Cycle Assessment

Ambiente e Agua - An Interdisciplinary Journal of Applied Science ◽

10.4136/ambi-agua.2216 ◽

2018 ◽

Vol 13 (4) ◽

pp. 1 ◽

Cited By ~ 1

Author(s):

Thaís Andrade de Sampaio Lopes ◽

Luciano Matos Queiroz ◽

Asher Kiperstok

Keyword(s):

Wastewater Treatment ◽

Life Cycle Assessment ◽

Life Cycle ◽

Environmental Impacts ◽

Wastewater Treatment Plant ◽

Treatment Plant ◽

Full Scale ◽

Anaerobic Sludge ◽

Treated Effluent ◽

Useful Life

Life Cycle Assessment (LCA) was applied to estimate and analyze the environmental impacts from the construction and operation phases of a full-scale wastewater treatment plant (WWTP) located in the municipality of Lauro de Freitas, Bahia, Brazil. The WWTP process consists of the association of an Upflow Anaerobic Sludge Blanket (UASB) reactor followed by four constructed wetlands (CWL) and a disinfection step. The functional unit was defined as one cubic meter of treated effluent during the useful life of this WWTP (20 years). The LCA was carried out using SimaPro® software and the Centre of Environmental Science (CML) assessment method. The environmental impacts during construction phase were mainly from the wooden forms for concrete and the use of reinforcing steel. During the operation phase, the chlorine used as effluent disinfectant caused the greatest impacts in the abiotic depletion and acidification categories. Macronutrient concentrations present in the treated effluent and the methane generated also caused significant environmental impacts during the WWTP’s useful life. The results obtained highlight the importance of the application of a methodology like LCA to assist in decision-making with regard to the implementation, construction and operation of a WWTP.

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Data on Biogas Production Quality: Evidence from the Wastewater Treatment Plant of Durrës

European Journal of Engineering and Technology Research ◽

10.24018/ejers.2021.6.4.2474 ◽

2021 ◽

Vol 6 (4) ◽

pp. 85-87

Author(s):

Stela Sefa ◽

Tania Floqi ◽

Julian Sefa

Keyword(s):

Wastewater Treatment ◽

Anaerobic Digestion ◽

Wastewater Treatment Plant ◽

Biogas Production ◽

Treatment Plant ◽

Production Quality ◽

Treatment Area ◽

Biochemical Processes ◽

Energy Grid

The wastewater treatment plant (WWTPD) located in Durrës, responsible for a treatment area of 205,000 inhabitants, employs the tertiary advanced wasterwater treatment to generate biogas from activated sludge for self use. The biogas collected from the anaerobic digestion tank feed the boiler and the co-generation unit which is then transformed to power its own energy grid. In order to evaluate the quality of biogas produced by anaerobic digestion of WWTPD’s sludge, is measured the percentage of CH4 and CO2 from the biogas production during a three years period (2016 – 2018). From the performed analyses has resulted a percentage of CH4 up to 75% and 25% CO2 in 2016. While the lowest percentage of CH4 in 2018 with respectively 70% CH4 and 30% CO2. Based on the value measurements, qualitative results of biogas parameters show that physicochemical and biochemical processes are performed under strict conditions and anaerobic digestion is performed according to standards.

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Selection of an ultraviolet disinfection system for a municipal wastewater treatment plant

Water Science & Technology ◽

10.2166/wst.2004.0445 ◽

2004 ◽

Vol 50 (7) ◽

pp. 163-169 ◽

Cited By ~ 12

Author(s):

S.J. Kang ◽

T.A. Allbaugh ◽

J.W. Reynhout ◽

T.L. Erickson ◽

K.P. Olmstead ◽

...

Keyword(s):

Wastewater Treatment ◽

Life Cycle ◽

Wastewater Treatment Plant ◽

Life Cycle Cost ◽

Municipal Wastewater ◽

Treatment Plant ◽

Normal Operation ◽

Ultraviolet Disinfection ◽

Municipal Wastewater Treatment ◽

Team Members

As part of an expansion to an average flow of 45.9 million gallons per day (174 mld), the Ypsilanti Community Utilities Authority wastewater treatment plant in the State of Michigan, USA, elected to install ultraviolet disinfection as a replacement for the existing chlorination process. This paper presents a unique methodology used in selecting the best system based on not only the life cycle costs, and O & M considerations but also the participation of the stakeholders. The Team members consisted of representatives of all departments at the Authority, and these Team members made the decision. The Team evaluated all criteria in the office, which was followed by verification at selected sites with similar types of equipment. The selected equipment then was pilot tested for validation of the dose-kill relationship under normal operation and also under reduced irradiation conditions. A low-pressure, high intensity system was selected, based on life-cycle cost, reliability, safety, and ease of operation. This paper describes the unique methodologies used in making that decision. The full-scale system is scheduled for start-up in Spring 2003.

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