中国海洋大学学报（自然科学版）2017，Vol.47Issue(4)：100-105,6.DOI:10.16441/j.cnki.hdxb.20160128
硝酸盐存在对硫自养/电化学氢自养组合工艺还原高氯酸盐性能影响
Effects of NO3——Appearance on Perchlorate Reduction of The Combined Process of Electrochemical Hydrogen Autotrophy and Sulfur Autotrophy
摘要
Abstract
The effects of NO3--N concentration on perchlorate reduction were evaluated in electrochemical hydrogen autotrophy and sulfur autotrophy.Compared with 0 mg/L NO3--N,the ClO4-reduction efficiency had no obvious variation at 10 mg/L NO3--N in the combined process of electrochemical hydrogen autotrophy and sulfur autotrophy.The ClO4-concentration from both electrochemical hydrogen autotrophy and sulfur autotrophy showed obvious increase at 30 and 50 mg/L NO3--N.As a competitive relation existed in the electrochemical hydrogen autotrophy and sulfur autotrophy of NO3--N and ClO4-,the ClO4-reduction process was inhibited under the appearance of NO3--N,suggesting the NO3--N reduction were preferential to the ClO4-reduction under the same conditions of hydrogen autotrophy and sulfur autotrophy.The effluent pH from the sulfur autotrophy varied between 7.40 and 7.98.H+ from the sulfur autotrophic reduction of NO3--N and ClO4-became the precursor of the electrochemical hydrogen autotrophic reduction of NO3--N and ClO4-,which resulted in the increase of pH from electrochemical hydrogen autotrophy and settled the problem of excessively high pH from the sulfur autotrophy.关键词
硝酸盐/高氯酸盐/硫自养还原/电化学氢自养还原Key words
NO3-/ClO4-/sulfur autotrophic reduction/electrochemical hydrogen autotrophic reduction分类
化学化工引用本文复制引用
赵堃,张健,王森,郑栋,王雪礁,李志伟,高孟春..硝酸盐存在对硫自养/电化学氢自养组合工艺还原高氯酸盐性能影响[J].中国海洋大学学报（自然科学版）,2017,47(4):100-105,6.基金项目
国家自然科学基金项目(21077096)资助 （21077096）
Supported by the National Natural Science Foundation of China (21077096) （21077096）
