| New low-temperature applications of anaerobic wastewater treatment. | |
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MedLine Citation:
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PMID: 16702065 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Low-temperature or psychrophilic (<20 degrees C) anaerobic biological treatment of simple industrial wastewaters has recently been proven feasible as an alternative to more expensive mesophilic (ca. 37 degrees C) technology. We implemented novel expanded granular sludge bed (EGSB)-based bioreactor designs for 27 psychrophilic anaerobic digestion (PAD) trials for the treatment of a broad range of simple and complex synthetic wastewaters representing dairy, food-processing and pharmaceutical sector effluents. A variety of operating parameters, such as hydraulic retention time, organic and volumetric loading rates and upflow velocity, were tested. Chemical oxygen demand (COD) removal efficiencies were recorded, which were comparable to previous mesophilic trials. Specific methanogenic activity, toxicity and biodegradability batch assays were employed to monitor the metabolic capabilities of microbial consortia in anaerobic reactors. The prevalence of psychrotolerant communities was observed and psychrophilic populations were detected in two of the reactors. The potential of PAD with respect to global sustainable development is discussed. |
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Authors:
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Gavin Collins; Sharon McHugh; Sean Connaughton; Anne-Marie Enright; Aileen Kearney; Colm Scully; Thérèse Mahony; Pádhraig Madden; Vincent O'Flaherty |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering Volume: 41 ISSN: 1093-4529 ISO Abbreviation: J Environ Sci Health A Tox Hazard Subst Environ Eng Publication Date: 2006 |
Date Detail:
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Created Date: 2006-05-16 Completed Date: 2006-08-25 Revised Date: 2009-08-14 |
Medline Journal Info:
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Nlm Unique ID: 9812551 Medline TA: J Environ Sci Health A Tox Hazard Subst Environ Eng Country: United States |
Other Details:
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Languages: eng Pagination: 881-95 Citation Subset: IM |
Affiliation:
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Microbial Ecology Laboratory, Department of Microbiology and Environmental Change Institute (ECI), National University of Ireland, Galway (NUI, Galway), University Road, Galway, Ireland. gavin.collins@nuigalway.ie |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Anaerobiosis Biodegradation, Environmental Biomass Bioreactors* Cold Temperature* Industrial Microbiology / methods* Methane / chemistry, metabolism Oxygen / chemistry, metabolism Sewage / chemistry, microbiology* Time Factors Waste Disposal, Fluid / methods* |
| Chemical | |
Reg. No./Substance:
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0/Sewage; 74-82-8/Methane; 7782-44-7/Oxygen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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