%0 Journal Article
%T Effect of sulfate on anaerobic biodecolorization of azo dyes<br>硫酸盐在偶氮染料厌氧生物脱色中的作用
%A Wang Xingzu
%A Sun Dezhi
%A Cheng Xiang
%A <br>王兴祖
%A 孙德智
%A 程翔
%J 环境工程学报
%D 2012
%I 
%X The effect of sulfate on anaerobic biodecolorization of Reactive Black 5(RB5) and Direct Yellow 11(DY11) by Rhodopseudomonas palustris W1 was investigated.Results showed that sulfate did not affect the decolorization process,whereas its reduction product,sulfide,greatly stimulated chemical decolorization of both of two dyes in the presence of redox mediators,which can be completed in 3 min.Without external supplement of redox mediators,RB5 decolorization can also be accelerated by sulfide with redox mediators from RB5 degrdation,however,no similar acceleration was observed in DY11 decolorization due to the lack of redox mediators production.Furthermore,elemental sulfur resulting from the oxidation of sulfide was biotransformed to sulfide again to reduce azo dyes repeatedly.
%K Rhodopseudomonas palustris
%K sulphate bioreduction
%K redox mediator
%K decolorization<br>沼泽红假单胞菌
%K 硫酸盐生物还原
%K 氧化还原介体
%K 脱色
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=804D8F4691AB7856895316E89531CFCF&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=DF92D298D3FF1E6E&sid=93FEF544983216C1&eid=86C17F046E2342EE&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0