氢自养菌降解水中溴酸盐和高氯酸盐的影响因素  

Influencing factors of hydrogen autotrophic bacteria on the degradation of bromate and perchlorate in water

作　　者：韩亚梅[1] 蒋敏敏[1] 李海翔[1] 张学洪[1] 

机构地区：[1]桂林理工大学环境科学与工程学院,广西环境污染控制理论与技术重点实验室,广西桂林541004

出　　处：《工业水处理》2018年第1期31-34,共4页Industrial Water Treatment

基　　金：国家自然科学基金(51408146);广西自然科学基金(2016GXNSFAA380204;2016GXNSFBA380207)

摘　　要：基于序批式摇瓶实验研究了pH、NO_3^--N、底物浓度(BrO_3^-、ClO_4^-初始浓度)对氢自养反硝化菌同步降解水中BrO_3^-和ClO_4^-的影响。结果表明:氢自养还原反应的最佳pH为7.0~7.5,pH过高或过低均会对BrO_3^-和ClO_4^-的还原产生抑制作用。NO_3^--N为5 mg/L时,氢自养反硝化菌对BrO_3^-和ClO_4^-降解率最大。氢自养微生物降解BrO_3^-和ClO_4^-有一定的浓度限制,浓度过高或过低均会降低BrO_3^-和ClO_4^-的降解效果。The influences of pH, NO3--N and substrate concentrations （the initial concentrations of BrO3- and C104-） on the simultaneous degradation of bromate and perchlorate in water by hydrogen autotrophic denitrifying bacteria have been researched,based on sequential batch shake flask tests. The results show that the optimum pH of hydrogen autotrophic reduction reaction is 7.0-7.5, and the pH value, no matter whether it is too high or too low, has inhibition effect on the reduction of BrO3- and C]O4-,When NO3- -N is 5 mg/L,the degradation rates of BrOw- and C104- by hydro- gen autotrophic bacteria are the highest. The degradation of BrO3- and C104- by hydrogen autotrophic microbial has a certain concentration limitation. When the concentration is too high or too low, the degradation effects of BrO3- and CIO4- can be reduced.

关 键 词：氢自养反硝化菌 溴酸盐 高氯酸盐 硝酸盐 

分 类 号：X703.1[环境科学与工程—环境工程]