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反硝化条件下苯生物降解的微环境研究

MICROCOSM STUDY OF BENZENE DEGRADATION ON NITRATE REDUCING CONDITIONS

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【作者】 李东艳钟佐燊孔惠刘菲王艳玲

【Author】 Li Dongyan Zhong Zuoshen Kong Hui Liu Fei Wang Yanling (Department of Water Resources and Environmental Engineering, China University of Geosciences, Beijing100083, China)$$$$

【机构】 中国地质大学水资源与环境工程系!北京100083

【摘要】 探讨了厌氧微环境中苯的生物降解 .接种物来自北京郊区的稻田土 .结果表明 ,在富集培养和转移培养微环境中 ,苯和甲苯的降解与硝酸盐还原作用同时发生 .甲苯比苯更易降解 ,甲苯的存在促进了苯的降解 .这是一例反硝化条件下苯能被生物降解的研究

【Abstract】 This paper discusses the biodegradation of benzene in anaerobic microcosms. The incovula were from the suburban rice soil. The results indicate that benzene and toluene degradation occurred concomitantly with nitrate reduction in enrichment and transfer cultures. Toluene was degraded more readily than benzene, and benzene degradation was enhanced by the presence of toluene. This is an instance of benzene degradation on nitrate reducing conditions.

【关键词】 生物降解反硝化作用微环境
【Key words】 biodegradationnitrate reductionbenzenemicrocosm.
【基金】 国家自然科学基金项目!(No .49772 15 9;4983 2 0 0 5 )
  • 【分类号】P641.73
  • 【被引频次】19
  • 【下载频次】235
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