MICROCOSM STUDY OF BENZENE DEGRADATION ON NITRATE REDUCING CONDITIONS
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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.
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Key words:
- biodegradation /
- nitrate reduction /
- benzene /
- microcosm
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图 1 微环境中苯和甲苯的降解
2-1B.第二批实验方案1苯的降解; 2-6T.第二批实验方案6甲苯的降解
Fig. 1. Benzene and toluene degradation in microcosms
表 1 微环境组成
Table 1. Constitution of microcosms
表 2 微环境中硝酸根的消耗量
Table 2. Reduction of nitrate in microcosms
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