同济大学学报（自然科学版）2012，Vol.40Issue(6)：876-881,889,7.DOI:10.3969/j.issn.0253-374x.2012.06.013
利用氢基质生物膜反应器同步去除多种污染物
Simultaneous Removal of Selected Oxidized Contaminants from Groundwater with a Hydrogen-based Membrane Biofilm Reactor
摘要
Abstract
A hydrogen-based membrane biofilm reactor (MBfR) was applied for simultaneous biodegradation of selected oxidized contaminants in groundwater including nitrate (NO3-- N), sulfate (SO42-),bromate (BrO3-), chromate (Cr(Ⅵ)) and para-chloronitrobenzene (p-CNB). The autohydrogentrophic bacteria lived on the membrane surface bioreduced nitrate to N2, sulfate to sulfide (S2-/ HM2S), bromate to bromide ion (Br-), Cr(Ⅵ) to Cr(Ⅲ) and p- CNB to p- CAN and AN with hydrogen as electron donor. Removal and/or toxicity decrease of these oxidized contaminates was achieved through biological reduction. After biofilm enrichment and 32 d continuous running, the reactor reached a steady state for removing oxidized contaminates with a nearly complete removal for nitrate and bromate, 19.8% for sulfate, 85. 6% for chromate, and 86. 1% for p-CNB, under the hydrogen pressure at 0. 06 MPa and hydraulic retention time at 4.67 h. The results show that the MBfR technology can be effective for removal of oxidized contaminates and of a potential application in the treatment of groundwater.关键词
氧化性污染物/地下水/同步去除/氢基质生物膜反应器Key words
oxidized contaminants/groundwater/simultaneous removal/ membrane biofilm reactor (MBfR)分类
资源环境引用本文复制引用
夏四清,梁郡,李海翔,徐晓茵..利用氢基质生物膜反应器同步去除多种污染物[J].同济大学学报（自然科学版）,2012,40(6):876-881,889,7.基金项目
国家自然科学基金(50978190) （50978190）
国家“八六三”高技术研究发展计划(2009AA062902) （2009AA062902）
