一株红假单胞菌对偶氮染料的脱色研究  

The decolorization of azo dyes by a Rhodobacter sphaeroides YB strain

作　　者：宋智勇[1] 周集体[1] 王竞[1] 严滨[1] 杜翠红[1] 

机构地区：[1]大连理工大学环境科学与工程学院,大连116023

出　　处：《环境污染治理技术与设备》2004年第3期44-47,共4页Techniques and Equipment for Environmental Pollution Control

基　　金：教育部跨世纪人才基金(科技函1999-2)

摘　　要：一株球形红假单胞菌(Rhodobacter sphaeroides YB)缺氧情况下对数种偶氮染料的24 h脱色率达到90％以上。结构相对简单的偶氮染料较容易脱色。研究了外加碳源、温度和pH值等环境因素对该菌生长以及脱色活性的影响,得出最优脱色条件为:光照缺氧、蛋白胨作碳源、温度35～40℃、pH=7-8。A Rhodobacter sphaeroides YB strain can decolorize several azo dyes over 90% under anaerobic condition in 24 h. Dyes having more simple structure can be decolorized more rapidly. The environmental conditions affecting decolorizations were studied, the optimal conditions are: illuminated anaerobic, peptone as carbon source, temperature from 35 to 40℃ and pH 7 - 8.

关 键 词：球形红假单胞菌 偶氮染料 脱色率 染料工业 生物可降解性 废水处理 

分 类 号：X788.03[环境科学与工程—环境工程]