摘要： 基于序批式摇瓶实验研究了pH、NO₃^--N、底物浓度（BrO₃^-、ClO₄^-初始浓度）对氢自养反硝化菌同步降解水中BrO₃^-和ClO₄^-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BrO₃^-和ClO₄^-的还原产生抑制作用。NO₃^--N为5 mg/L时，氢自养反硝化菌对BrO₃^-和ClO₄^-降解率最大。氢自养微生物降解BrO₃^-和ClO₄^-有一定的浓度限制，浓度过高或过低均会降低BrO₃^-和ClO₄^-的降解效果。

关键词: 氢自养反硝化菌, 溴酸盐, 高氯酸盐, 硝酸盐

Abstract: The influences of pH, NO₃^--N and substrate concentrations(the initial concentrations of BrO₃^- and ClO₄^-) 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 ClO₄^-, When NO₃^--is 5 mg/L, the degradation rates of BrO₃^- and ClO₄^- by hydro-gen autotrophic bacteria are the highest. The degradation of BrO₃^- and ClO₄^- by hydrogen autotrophic microbial has a certain concentration limitation. When the concentration is too high or too low, the degradation effects of BrO₃^- and ClO₄^- can be reduced.

Key words: hydrogen autotrophic denitrifying bacteria, bromate, perchlorate, nitrate

中图分类号: 

• X703.1