沼泽红假单胞菌对硫化亮绿的脱色研究  

Study on Decolorization of Sulphur Bright Green by Rhodopseudomonas palustris

作　　者：李可[1] 张肇铭[1] 刘建红[1] 李海云[1] 

机构地区：[1]山西大学生命科学与技术学院光合细菌研究所,山西太原030006

出　　处：《山西大学学报（自然科学版）》2004年第2期199-201,共3页Journal of Shanxi University(Natural Science Edition)

基　　金：国家科技攻关项目 (2 0 0 1BA5 4 0 C)

摘　　要：研究了各种环境因子对沼泽红假单胞菌 (Rhodopseudomonas palustris)降解硫化亮绿的影响 ,结果表明脱色最适温度和 p H分别为 4 0℃和 7.0 ,在通 N2 、厌氧的条件下菌株的脱色效果最好 .此外 ,还讨论了硫化亮绿初始浓度对硫化亮绿降解速率的影响 ,当初始浓度低于 10 0 m g/ L 时的降解速率随浓度增加而加快 ,高于 10 0 mg/ L 时则表现出抑制作用 ;在可降解浓度范围内 ,硫化亮绿降解率为 5 5 %～ 92 % .The effect of three factors on the degradation of sulphur bright green by Rhodopseudomonas palustris was studied.The result showed that pH7.0,temperature40 ℃ were optimum conditions for decolorization.The decolorization rate in anaerobic condition were higher than that in aerobic condition.The initial concentration of dye affect the rate of biodegradation.When the initial concentration was below 100 mg/L,the rate increased with the increase of the concentration.When the initial concentration was more than 100mg/L,the degradation was inhibited.The rate of biodegradation varied from 55 %to92 %.

关 键 词：沼泽红假单胞菌 硫化亮绿 脱色 微生物降解 染料废水 废水处理 

分 类 号：X791.031[环境科学与工程—环境工程] X172