Hydrocarbon Bioremediative Potential of (Per)Chlorate-Reducing Bacteria

Autor:	John D. Coates, Laurie A. Achenbach, Royce A. Bruce, Jennifer Patrick
Rok vydání:	1999
Předmět:	education.field_of_study Population Chlorate Inorganic chemistry chemistry.chemical_element Biodegradation complex mixtures Anoxic waters Oxygen chemistry.chemical_compound chemistry Sulfate education Chlorite General Environmental Science Naphthalene
Zdroj:	Bioremediation Journal. 3:323-334
ISSN:	1547-6529 1088-9868
DOI:	10.1080/10889869991219415
Popis:	Petroleum contamination of soils and sediments is a national concern due to the toxicity and recalcitrance of the aromatic components in the absence of oxygen. Oxygen can be introduced into the anaerobic zone of a contaminated environment by injection of gaseous O2 to stimulate biodegradation, but this process is costly and inefficient. Other more soluble electron acceptors, such as nitrate or sulfate, may alternatively be used, but the rates of oxidation are slow and not all hydrocarbons are degraded. Here we report that chlorite dismutation by (per)chlorate-reducing bacteria may offer an alternative source of oxygen for contaminant degradation. The dismutation of chlorite is an intermediate step in the microbial reduction of chlorate. Chlorite dismutation can stimulate the rapid oxidation of aromatic hydrocarbons such as benzene or naphthalene in anoxic environments by supplying oxygen to the aerobic hydrocarbon-oxidizing population. Benzene, which is extremely recalcitrant under anaerobic conditions, i...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5cacf5fe0e3d2c8293c86f340e70c97a https://doi.org/10.1080/10889869991219415 Zobrazit plný text záznamu