改良剂对重金属复合污染土壤的钝化修复研究  

Research on Amendments Application in Remediation of Soil Contaminated with Mixed Heavy Metals

作　　者：王意锟[1] 郝秀珍[2] 陈容[1] 

机构地区：[1]南京林业大学森林资源与环境学院,南京210037 [2]中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室,南京210008

出　　处：《腐植酸》2010年第4期6-8,27,共4页Humic Acid

基　　金：中国科学院知识创新工程重要方向项目(kzcx2-yw-404);国家自然科学基金项目(30700480);重大科学研究计划(2007CB936604)

摘　　要：研究了泥炭、凹凸棒土及不同施用方式对土壤重金属有效态的影响。结果表明:各处理对土壤溶液的pH值影响不大;泥炭的钝化效果明显比凹凸棒土好,但在和凹凸棒土配合施用后,其钝化效果有所下降,而表施处理对DTPA提取态重金属的钝化效果并不明显。Using incubation method,the effects of peat and palygorskite with different application method on availability of heavy metals were studied.The results showed that the amendments had slight impact on pH of soil solution.Peat was more effective than palygorskite in decreasing DTPA extractable content of heavy metals,but its effect was significantly weakened when combination with palygorskite.Surface application had no significant effect on availability of heavy metals.

关 键 词：泥炭 重金属 钝化 修复 

分 类 号：X53[环境科学与工程—环境工程]