室内模拟BPRB修复阿特拉津污染地下水  

Indoor simulation of BPRB remediating atrazine contaminated groundwater

作　　者：朱博麟[1] 邱华[1] 李海军[1] 毕海涛[1] 刘娜[1] 

机构地区：[1]吉林大学环境与资源学院,长春市130021

出　　处：《黄金》2012年第9期56-59,共4页Gold

基　　金：国家自然科学基金项目(40702039;41072170)

摘　　要：设计了新型生物可渗透反应墙(BPRB)用于处理被污染的地下水。以阿特拉津为污染物,装填固定有阿特拉津降解菌(Pseudomonas W4)的磷酸化聚乙烯醇(PPVA)生物活性材料介质,前半部分以草炭土-PPVA/砂子为填料,以长期稳定地释放C、P;后半部分以珍珠岩-PPVA/砂子为填料,消耗草炭土-PPVA释放的C、P。选择V(PPVA生物活性材料)∶V(砂子)=1∶1的比例安装BPRB。在BPRB内设置曝气井,供氧方式为连续空气曝气,整个BPRB内DO质量浓度大于3 mg/L。BPRB模拟槽共运行140 d,累计进水1 213.6 L,共去除阿特拉津(19.35±1.00)g,出水中始终未检出阿特拉津。试验结果表明,在不额外添加碳源、磷源的条件下,BPRB能够长期稳定修复阿特拉津污染地下水。The study designed an innovative bio permeable reactive barrier（BPRB）,filled with PPVA bioactive materials which immobilized atrazine degradation bacteria（Pseudomonas W4）,consisting of two parts.The former was filled with peat-PPVA and sand（V/V=1∶1）,constantly releasing C,P;the latter was filled with perlite-PPVA and sand（V/V= 1∶1）,consuming C,P released from peat.The oxygen supply was continuous air aeration in wells installed within BPRB and the DO concentration in BPRB was more than 3 mg/L.BPRB simulated slot had been running for 140 days,total inflow was 1 213.6 L,total removal of atrazine was 19.35±1.00 g,and there was no atrazine detected in effluent.With the absence of auxiliary C,P source,BPRB can stably remediate atrazine contaminated groundwater for a long term.

关 键 词：地下水污染 生物可渗透反应墙 包埋固定化 

分 类 号：X523[环境科学与工程—环境工程]