接种苯氧化富集物后石油污染含水层沉积物中的厌氧苯降解
Anaerobic benzene degradation in petroleum-contaminated aquifer sediments after inoculation with a benzene-oxidizing enrichment.
作者信息
Weiner J M, Lovley D R
机构信息
Department of Microbiology, University of Massachusetts, Amherst 01003, USA.
出版信息
Appl Environ Microbiol. 1998 Feb;64(2):775-8. doi: 10.1128/AEM.64.2.775-778.1998.
Abstract
Sediments from the sulfate-reduction zone of a petroleum-contaminated aquifer, in which benzene persisted, were inoculated with a benzene-oxidizing, sulfate-reducing enrichment from aquatic sediments. Benzene was degraded, with apparent growth of the benzene-degrading population over time. These results suggest that the lack of benzene degradation in the sulfate-reduction zones of some aquifers may result from the failure of the appropriate benzene-degrading sulfate reducers to colonize the aquifers rather than from environmental conditions that are adverse for anaerobic benzene degradation.
摘要
在一个受石油污染的含水层的硫酸盐还原区中，苯持续存在，从水生沉积物中富集得到的一种能氧化苯且能进行硫酸盐还原的菌接种到了该区域的沉积物中。苯被降解，随着时间推移，苯降解菌群明显生长。这些结果表明，一些含水层的硫酸盐还原区中苯降解的缺乏，可能是由于合适的苯降解硫酸盐还原菌未能在含水层中定殖，而非是由于不利于厌氧苯降解的环境条件所致。
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