无泡曝气供氢修复三氯乙烯污染地下水实验研究  

RESEARCH ON RESTORING GROUNDWATER CONTAMINATED BY TCE VIA BUBBLELESS AERATION SUPPLYING HYDROGEN TECHNOLOGY

作　　者：宋震宇[1,2,3] 杨伟[1,2,3] 王文茜 张景辉[1,2,3] 陈冠益[1,3] 

机构地区：[1]天津大学环境科学与工程学院,300072 [2]天津生态城环保有限公司,300467 [3]天津市污染场地治理修复技术工程中心,300467 [4]天津生态城环境检测中心有限公司,天津300467

出　　处：《水处理技术》2014年第6期70-73,共4页Technology of Water Treatment

摘　　要：以中空纤维膜作为无泡曝气供氢的载体,对三氯乙烯污染地下水进行生物厌氧还原修复,考察了曝气压力、水相流速、温度等因素条件对三氯乙烯降解速率以及去除率的影响。结果表明,随着曝气压力的升高,水相氧化还原电位降低,三氯乙烯的还原率提高;随着水循环流速的升高,水相氧化还原电位降低,三氯乙烯的还原率出现先增大后减小的趋势;随着水相温度的降低,三氯乙烯的还原率仅出现略微的下降。Using hollow fiber membrane as the carrier for bubbleless aeration supplying hydrogen, restored the groundwater contaminated by TCE via biological anaerobic reduction technology. The effects of aeration pressure, water flow rate and temperature on TCE degradation rate were investigated. The results showed that the oxidation reduction potential （ORP） decreased and the removal rate of TCE increased as the aeration pressure enhanced. The ORP decreased and the removal rate of TCE increased first with subsequent decreased as the water flow rate increased. The removal rate of TCE showed a light downward as the water temperature decreased.

关 键 词：地下水污染 三氯乙烯 无泡曝气 中空纤维膜 修复 

分 类 号：TQ028.8[化学工程] X523[环境科学与工程—环境工程]