U2R08c
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Available as an ebook
Please purchase via www.iwaponline.comOpens in new window
Also part of Water Intelligence Online Digital Reference Library
Standard ePrice: £29.00
+ VAT
These case studies focus on the CH4 emissions from wastewater treatment in photosynthetic oxidation ponds and facultative sludge lagoons. These area-intensive processes are for cryophilic-to-mesophilic treatment and storage and are uncovered, except for a layer of aerobic liquid. Pond/lagoon treatment technologies represent some of the lowest energy processes available and as such are attractive options from an indirect GHG perspective.
While it is intuitive that sludge treatment lagoons have significant anaerobic zones, oxidation ponds have also been shown to develop anaerobic layers, particularly in the deeper portions. Literature also suggests that CH4 evolution is mitigated by methanotrophic bacteria in the water column that can aerobically oxidize CH4, as occurs naturally in lakes and other environments. Because each system has potentially significant anaerobic volumes, quantifying the levels of CH4 emissions would provide insight into the significance of direct CH4 emissions and whether improvements are warranted to address fugitive emissions in these otherwise very sustainable technologies.
These tasks provide a better understanding of the wastewater treatment industry’s true impacts from a GHG standpoint. With that understanding better solutions may be developed to remediate their impact as warranted by their significance.
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In a world where there is a growing awareness of the possible effects of human activities on climate change, there is a need to identify the emission of greenhouse gases (GHG) from wastewater...
In 2008, the New York State Energy Research and Development Authority (NYSERDA) published the “Statewide Assessment of Energy Use by the Municipal Water and Wastewater Sector” documenting 2003/...
A flare efficiency estimator (FEE) tool is part of Water Environment Research Foundation (WERF) project U2R08 entitled Methane Evolution from Wastewater Treatment and Conveyance under WERF’s...
Available as eBook only
Methane (CH4) production from sewers is a suspected, yet relatively undocumented source of greenhouse gases (GHGs). The Intergovernmental Panel on...
This study was designed to be a follow up of the WERF Phase III odor study (Biosolids Processing Modifications for Cake Odor Reductions, 03-CTS-9T) odor study. The Phase III study found that iron...
Various control strategies are employed to ensure that a sufficient amount of chlorine has been applied to wastewater effluent in disinfection. In commonly used control strategies, such as Feed...
Municipal wastewater treatment facilities were not specifically designed to remove xenobiotics such as endocrine disrupting compounds (EDCs) and pharmaceuticals and personal care products (PPCPs...
The purpose of this study was to assess the economic feasibility of using large-scale, restored wetlands to assist publicly owned treatment works (POTWs) in meeting the U.S. Environmental...
In 1996, the Electric Power Research Institute (EPRI) published a report entitled Water and Wastewater Industries: Characteristics and Energy Management Opportunities which described how...
A common characteristic of water demand in urban areas worldwide is its inexorable rise over many years; continued growth is projected over coming decades. The chief influencing factors are...
This is the Portuguese translation of Manual on the Human...
Guidance for Professional Development in Drinking Water and Wastewater Industry recognises the water practitioner's journey from the novice student phase all the way to an established expert...