阴离子交换膜生物反应器在不同水力停留时间下还原饮用水中ClO_4^-的研究  

Study on Perchlorate Reduction in an Anion Exchange Membrane Bioreactor Under Different Hydraulic Retention Time

作　　者：高孟春[1,2] 于恒[1,2] 刘洁琼[2] 梁方圆[2] 李耀如[2] 杨丽娟[2] 王子超[2] 张优[2] 王悦静[2] 

机构地区：[1]中国海洋大学海洋环境与生态教育部重点实验室 [2]中国海洋大学环境科学与工程学院,山东青岛266100

出　　处：《中国海洋大学学报（自然科学版）》2012年第1期31-35,共5页Periodical of Ocean University of China

基　　金：国家自然科学基金项目(21077096);教育部新世纪优秀人才支持计划项目(NCET-07-0780);中国海洋大学本科生研究发展计划(091042347)资助

摘　　要：在不同水力停留时间(HRT)下考察了阴离子交换膜生物反应器对饮用水中ClO4-的还原效果。研究结果表明,在进水ClO4-浓度为60μg/L情况下,HRT从5h逐渐降低到2.5h,水流动室出水ClO4-浓度随着HRT降低呈增大趋势,但运行稳定后出水ClO4-浓度均低于18μg/L。厌氧生物反应室在HRT降低初期高氯酸盐有一定的积累,随着运行时间的增加,积累的ClO4-能被厌氧微生物还原,厌氧污泥混合液中ClO4-浓度低于2.0μg/L,说明厌氧生物反应室具有较强的抗负荷冲击能力。水流动室出水pH稳定在7左右,电导率和Cl-随着HRT降低而增大。The perchlorate reduction of drinking water in an anion exchange membrane bioreactor was investigated under different hydraulic retention time.When influent ClO4- was 60 μg/L,the effluent ClO-4 gradually increased with HRT from 5 h to 2.5 h.However,influent ClO4- was below 18 μg/L after steady operation.Perchlorate was accumulated in the anaerobic reactive pool at the beginning of each HRT,which was quickly reduced microorganism,and perchlorate in the anaerobic sludge was below 2.0 μg/L.The pH of effluent from the water flowing chamber was about 7,and the conductivity and Cl-increased with the decrease of HRT.

关 键 词：水力停留时间 水流动室 厌氧生物反应室 ClO4- 

分 类 号：X172[环境科学与工程—环境科学]