不同还原环境下Fe^0／厌氧微生物联合体系降解硝基苯的研究  

STUDY ON THE DEGRADATION OF NITROBENZENE BY INTEGRATED MICROBIAL-Fe^0 TREATMENT SYSTEM UNDER DIFFERENT REDUCING ENVIRONMENT

作　　者：罗春香[1] 戴友芝[1] 李启武 史雷[1] 汤文琪[1] 

机构地区：[1]湘潭大学环境工程系,湖南湘潭411105 [2]湖南省环境监测站,湖南长沙410004

出　　处：《水处理技术》2009年第4期31-34,共4页Technology of Water Treatment

基　　金：湖南省科技厅计划项目(2008SK4021)

摘　　要：采用间歇试验,对不同还原条件下Fe0/厌氧微生物联合体系降解硝基苯(NB)进行了研究。结果表明,铁还原环境和硫酸盐还原环境对Fe0/厌氧微生物联合体系降解硝基苯起促进作用;反硝化环境起抑制作用。各还原环境下测得Fe2+浓度与硝基苯的降解效果成正比关系,由此可见,Fe0在Fe0/厌氧微生物联合体系降解硝基苯的过程中起了很重要的作用。A batch laboratory test was conducted to study the degradation of nitrobenzene （NB） using an integrated microbial-Fe^0 treatment system under different reducing condition. The results showed that： the degradation rate was promoted under iron-reducing environment or sulfate-reducing environment; however, under denitrification environment, the degradation of nitrobenzene was inhibited. Fe^2＋ concentration is in direct proportion with the nitrobenzene degradation effect under various environments; therefore, Fe^0 played an important role in the process ofnitrobenzene degradation in the inte-grated microbial-Fe^0 treatment system.

关 键 词：硝基苯 Fe0 还原环境 厌氧微生物 

分 类 号：X703.1[环境科学与工程—环境工程]