scholarly journals ENVISIONing the LCA of a wastewater treatment plant

2018 ◽  
Vol 13 (3) ◽  
pp. 583-588
Author(s):  
A. Kadava ◽  
S. Murthy ◽  
A. R. Shaw
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Credit Rating ◽  
Treatment Plant ◽  
Holistic Approach ◽  
Rating System ◽  
Treatment Facility ◽  
Sustainable Infrastructure ◽  
Wide Acceptance

Abstract In today's sustainability market where there are several tools to rate and grade the ‘green’ level of modern day infrastructure, the multi-tiered credit rating system called Envision provides an holistic approach to tackle the issue. Developed by the Institute for Sustainable Infrastructure (ISI), Envision has around 60 sustainability credits to score points in order to reach a recognized level of achievement. Life cycle assessment (LCA) is another tool that is gaining industry-wide acceptance for assessing potential environmental impacts. LCA is recognized by Envision as a good way to assess several of the available credits in their system. An LCA performed for Blue Plains Advanced Wastewater Treatment Facility (AWTF), Washington, D.C., USA was used as an example case study to show how credits could be calculated for a used water treatment facility.

scholarly journals Anaerobic digestion life cycle assessment (LCA)

2020 ◽  
Vol 2 (5) ◽  
pp. 92-104
Author(s):  
Farhad Sakhaee
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Anaerobic Digestion ◽  
Training Center ◽  
Treatment Facility ◽  
Practical Solution ◽  
Treatment Facilities ◽  
Management Report

Abstract: Life cycle assessment (LCA) is a tool to evaluate environmental impacts based on products of a process. This research is a case study of wastewater treatment facilities of ERTC (Environmental Resources Training Center), SIUE University, based on available data for two semi-annual sludge quantities (year 2015) from sludge management report. The aim of this study is to compare set of possibilities for a wastewater treatment facility at ERTC. The simulation has been done through SimaPro model. Electricity and methane were considered and the cumulative weight of their impacts has been investigated. Total solids for two semi-annual sludge has been fed to the model in kilogram and different production (electricity and methane) configuration were investigated. The most plausible configuration based on the cumulative environmental impact proposed as best practical solution.

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

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

The Rigorous Application of FMEA to a Wastewater Treatment Plant Aerator Drive: Understanding Requirements, Conditions, Limitations, and Success Factors

2009 ◽  
Author(s):  
Tomoki Tanaka ◽  
Daniel J. Rosseljong
Keyword(s):  
Wastewater Treatment ◽  
Success Factors ◽  
Failure Modes ◽  
Treatment Plant ◽  
Fault Tree Analysis ◽  
External Factors ◽  
Treatment Facility ◽  
Top Down ◽  
Tree Analysis

Any supplied gearbox performing below a user’s clearly defined expectations can be viewed as a failure. This case study involves consistent lubricant leakage starting almost immediately after installation. Through various field inspections, modifications and a factory rebuild, the problem was not resolved to the owner’s satisfaction until replaced by (2) new units. This paper documents the factual elements of an engineering evaluation of a gearbox removed from an aerator drive at a wastewater treatment facility, using FMEA [Failure Modes and Effects Analysis] over FTA [Fault Tree Analysis]. The gearbox supplier chose FMEA because it considers the importance of the gearbox components, weighting them to the application, where FTA is often a pure top-down analytical engineering approach without consideration for external factors. The gearbox supplier performed a detailed disassembly of the gearbox under controlled conditions and inspected each gearbox component to identify any faults in material or designs focusing on those that affect the user. The goal of this analysis is to provide a technical understanding of the cause(s) of failure, its consequences, and a means to correct any problems with the gearbox, real or perceived.

Life Cycle Assessment of Urban Wastewater Treatment

2014 ◽  
Vol 535 ◽  
pp. 346-349
Author(s):  
Mei Wang ◽  
Ming Yang ◽  
Jun Liu ◽  
Jian Fen Li
Keyword(s):  
Wastewater Treatment ◽  
Life Cycle Assessment ◽  
Life Cycle ◽  
Wastewater Treatment Plant ◽  
Sewage Treatment ◽  
Treatment Plant ◽  
Urban Wastewater ◽  
Urban Sewage ◽  
Urban Wastewater Treatment ◽  
Whole Life Cycle

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.

Predicting the sound power and impact of a wastewater treatment plant

2001 ◽  
Vol 44 (2-3) ◽  
pp. 235-242 ◽  
Author(s):  
B. De heyder ◽  
P. Ockier ◽  
R. Jansen ◽  
R. Huiberts
Keyword(s):  
Wastewater Treatment ◽  
Empirical Model ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Empirical Models ◽  
Sound Power ◽  
Water Line ◽  
Model Derivation ◽  
Close Distance

Several process units at a wastewater treatment plant (WWTP) can produce a significant level of sound and thus induce sound nuisance for nearby residents. The risk for sound nuisance should be considered by making a prognosis of sound impact in an early project phase (planning, design). A prognosis requires information with respect to the sound characteristics of the different process units. This paper reports the development of empirical models for the sound power of relevant process units in the water line at Aquafin WWTPs. The used methodology for model derivation and validation allowed us to minimize the required number of measurements. Besides the methodology, the paper describes in detail the derivation and validation of the empirical model for the splashing water of screw pumps. Also the use of all the derived empirical models to determine the sound impact of a wastewater treatment plant at close distance is illustrated with a case-study.

Optimising dissolved air flotation/filtration treatment of algae-laden lagoon effluent using surface charge: a Bolivar treatment plant case study

2012 ◽  
Vol 66 (8) ◽  
pp. 1684-1690 ◽  
Author(s):  
Russell Yap ◽  
Michael Holmes ◽  
William Peirson ◽  
Michael Whittaker ◽  
Richard Stuetz ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Surface Charge ◽  
Wastewater Treatment Plant ◽  
Pilot Plant ◽  
Treatment Plant ◽  
Dissolved Air Flotation ◽  
Air Flotation ◽  
A Charge ◽  
Dissolved Air

Dissolved air flotation (DAF) incorporating filtration (DAFF) is used at the Bolivar wastewater treatment plant (WWTP) to polish lagoon effluent for reuse. Elevated algal populations are frequently experienced and can lead to increased coagulant requirements and process control issues. Streaming current detectors (SCDs) and a charge demand analyser (CDA) were used to monitor the full-scale plant. This was followed by an optimisation study using a pilot plant with a CDA. It was found that the normal operational charge demand range for DAF at Bolivar was between −46 and −40 μeq L−1. Decreasing the pH of coagulation reduced coagulant consumption and facilitated more sensitive CDA responses to changes in alum dose.

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