4-甲基喹啉的微生物降解研究  

Study on the Biodegradation of 4-Methylquinoline

作　　者：崔明超[1] 陈繁忠[1] 傅家谟[1] 盛国英[1] 孙国平[2] 蔡小伟[2] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室和广东省环境资源利用与保护重点实验室,广东广州510640 [2]广东省微生物研究所,广东广州510070

出　　处：《重庆环境科学》2003年第9期20-22,共3页Chongqing Environmental Science

基　　金：中国科学院知识创新工程前沿性研究项目 (0 0 1 1 0 8)

摘　　要：从处理油制气废水的活性污泥中分离得到一株可降解喹啉的菌 Q1 0 ,经鉴定为睾丸酮丛毛单胞菌 (Coma-monastestosteroni)。该菌还可以降解 4 -甲基喹啉 ,本文着重研究了该菌在好氧条件下对 4 -甲基喹啉降解特性。实验结果表明 ,该菌在碱性条件下比在酸性条件下更有利于 4 -甲基喹啉的降解 ;温度为 30℃时降解较快 ;振荡速度对降解没有明显影响 ;在适当的细菌浓度和底物浓度水平上 ,4 -甲基喹啉具有较高的降解效率。实验也表明 ,菌 Q1 0 是一株喹啉衍生物广谱降解菌 。A bacterial strain Q 10 with the ability to degrade quinoline was isolated from activated sludge of a gas-generating wastewater and identified as Comamonas testosteroni.The bacteria can also degrade 4-methylquinoline.This paper focused on the study of the biodegradation characteristic of 4-methylquinoline under aerobic condition by strain Q 10.The experimental results showed that the Q 10 could remove 4-methylquinoline in aqueous solution more effectively at alkali pH values than acidic pH values.The degradation of 4-methylquinoline was much faster at 30℃ and the oscillation rate had no obvious effects on the degradation of 4-methylquinoline.Higher removal efficiencies can be obtained when appropriate concentrations of cell and 4-methylquinoline were used.The results also indicated that the strain Q 10 is a broad-spectrum strain and has important applications for the degradation of quinoline and its derivatives.

关 键 词：4--甲基喹啉 睾丸酮丛毛单胞菌Q10 生物降解 

分 类 号：X172[环境科学与工程—环境科学]