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Persistence of fermentative process to phenolic toxicity in groundwater

Wu, Youxian; Lerner, David N.; Banwart, Steven A.; Thornton, Steven F.; Pickup, Roger W.. 2006 Persistence of fermentative process to phenolic toxicity in groundwater. Journal of Environmental Quality, 35. 2021-2025. 10.2134/jeq2006.0080

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Abstract/Summary

The fermentation process is an important component in the biodegradation of organic compounds in natural and contaminated systems. Comparing with terminal electron-accepting processes (TEAPs), however, research on fermentation processes has to some extent been ignored in the past decades, particularly on the persistence of fermentation process in the presence of toxic organic pollutants. Both field and laboratory studies, presented here, showed that microbial processes in a groundwater-based system exhibited a differential inhibitory response to toxicity of phenolic compounds from coal tar distillation, thus resulting in the accumulation of volatile fatty acids (VFAs) and hydrogen. This indicated that fermentation processes could be more resistant to phenol toxicity than the subsequent TEAPs such as methanogenesis and sulfate reduction, thus providing us with more options for enhancing bioremediation processes.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.2134/jeq2006.0080
Programmes: CEH Programmes pre-2009 publications > Biodiversity
CEH Sections: _ Ecological Processes in Freshwater & Soils
ISSN: 0047-2425
NORA Subject Terms: Hydrology
Chemistry
Date made live: 15 May 2008 10:40
URI: http://nora.nerc.ac.uk/id/eprint/2949

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