污染土壤的物理/化学修复

将土壤污染物分为非卤代VOCs、卤代VOCs、非卤代SVOCs、无机物等8大类型,并在分析污染土壤原位修复和异位修复两种方式不同特点的基础上,根据各种修复技术的不同作用原理,较为全面地介绍了目前国内外各种物理/化学修复的技术原理、适用性、局限性、实施时间及处理成本等,具体包括化学淋洗、蒸汽抽提、强化破裂、空气喷射、可渗透反应墙、固化/稳定化、电动学、物理分离、热解吸、玻璃化等修复技术.针对几种常见的土壤污染类型,列举了一些可行的组合修复工艺.

Physical/chemical remediation of contamitated soil

Soil contaminants are classified into 8 groups here,such as non-halonated volatile organic carbons(VOCs),halonated volatile organic carbons(VOCs),non-halonated semi-volatile organic carbons(SVOCs),inorganics,etc.After presenting the advantages and disadvantages of both in-situ and ex-situ remediations,the mechanism,applicability and limitations of various treatment technologies of physical/chemical remediation are discussed in considerable details. Technologies such as soil washing,soil vapor extraction,permeable reactive wall,stabilization/solidification,thermal desorption,vitrification,etc.are all included here.A number of treatment trains are listed for some common contamination sites.