以重金属污染来源及其污染过程展开分析,围绕固化稳定化法、螯合剂法及氧化还原法,使用碎石排土机能避免物料堵塞,KH200设备具备不同土壤的兼容性,二者应用广泛.重金属修复以铁系试剂为主,搭配磷酸盐硫酸盐及石灰复合调配后,使用水射器和泵、一体化挖掘机等混合投加.新技术如遥感激光等为监测由传统实验室走向现场监测,广泛应用于后期工程概算,药剂的选配和工程时间控制等.%This paper summerized the major sources of heavy metal pollution in soil and pollution levels of heavy metals in different type of lands.By emphasizing the soil heavy metal pollution to the harm of human activity directly or indirectly, the importance and necessity of soil restoration was illustrated.The mechanism ( REDOX process, chela legal and electrochemical method), equipment installation (water injector and pump), monitoring, selection of chemical agents(ferrous sulfate, sodium sulfide and sodium dithionite) and their costs, and environmental risk assessment, used in engineering was proposed.
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