地下水原位修复渗透性反应墙反应介质的改良与展望

渗透性反应墙(PRBs)是倍受关注的地下水原位修复技术之一,具有高效廉价、安装简便、维护简单等优点。详细总结了零价铁、活性炭、无机矿物材料和生物质材料等PRBs反应介质的结构、性能、适用范围、改良方法及增强吸附机制,介绍了PRBs技术在国内外地下水原位修复领域的工程应用实例,指出研发可再生型反应介质、深入研究复杂体系的污染物去除主导机制以及开展多介质混合、多种原位修复技术集成应用研究将是今后PRBs的主要研究方向。

Improvement and prospect of reaction media in permeable reactive barriers for in situ groundwater remediation

Permeable reactive barriers（PRBs）,as one of in situ remediation technologies,is attracted much attention. They have advantages of high efficiency,low cost,easy installation and easy maintenance. The structure,properties,application scope,improvement methods and enhancing mechanisms of different reaction media in PRBs,such as zero iron,activated carbon,inorganic mineral material and biologic material,are summarized in detail. The engineering applications of PRBs technologies in groundwater remediation at home and abroad are introduced. It is pointed that the directions for further research are as followsdeveloping renewable reaction media,gaining insight into the removal mechanism of pollution in complex system and researching on integration application of in situ remediation technology with multiple media and technologies.