零价铁渗透性反应墙长期性能的影响因素  

INFLUENCE FACTORS ON LONG-TERM PERFORMANCE OF ZERO-VALENT IRON PERMEABLE REACTIVE BARRIERS

作　　者：朱雪强[1] 韩宝平 ZHU Xue-qiangI , HAN Bao-ping2(1. School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou 221116, China; 2. School of Geography ＆ Geomatics and Urban-Rural Planning, Jiangsu Normal University, Xuzhou 221116, Chin)

机构地区：[1]中国矿业大学环境与测绘学院,江苏徐州221116 [2]江苏师范大学地理测绘与城乡规划学院,江苏徐州221116

出　　处：《环境工程》2018年第2期163-167,172,共6页Environmental Engineering

基　　金：国家自然科学基金项目"岩溶含水层四氯化碳污染生物修复机理与调控"(21146005)

摘　　要：介绍了零价铁渗透性反应墙(ZVI-PRB)长期性能的影响因素和潜在失效机理。指出设计缺陷、反应材料活性损失和不可逆的水力变化是ZVI-PRB失效的主要原因;而次生矿物沉淀、生物淤积、气体堵塞、氧化剂竞争和地球化学条件是ZVI-PRB潜在失效机理。The factors influencing the long-term performance and potential failure mechanisms of zero-valent iron permeable reactive barriers（ZVI-PRB） were briefly summarized. Loss of reactivity,design flaws and adverse hydraulic change were pointed out to be the most common causes of the ZVI-PRB failures. Precipitation of secondary minerals,biofouling,gas clogging,competing of oxidizing agents and geochemical condition were pointed out as the potential failure mechanisms of long performance of ZVI-PRB.

关 键 词：零价铁 渗透性反应墙 长期性能 失效机理 

分 类 号：X523[环境科学与工程—环境工程]