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ClO4-的研究Study on Perchlorate Reduction in an Anion Exchange Membrane Bioreactor Under Different Hydraulic Retention Time
高孟春,于恒,刘洁琼,梁方圆,李耀如,杨丽娟,王子超,张优,王悦静
摘要(Abstract):
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。
关键词(KeyWords): 水力停留时间;水流动室;厌氧生物反应室;ClO4-
基金项目(Foundation): 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
作者(Author): 高孟春,于恒,刘洁琼,梁方圆,李耀如,杨丽娟,王子超,张优,王悦静
DOI: 10.16441/j.cnki.hdxb.2012.z1.005
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