还原稳定化法修复六价铬污染土壤的中试研究.pdf

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1、第!卷"第#期环境工程学报$%&'!!(%'##)*+年#月,-./0102%34/5&%67/8.4%/90/:5&7/;./004./;<0='#)*+还原稳定化法修复六价铬污染土壤的中试研究**##**#*#黄"莹"徐民民"李书鹏"郭丽莉"李永霞"杨"健"许"超"高甫威"黄树焘"*c山东省环境保护科学研究设计院生态与土壤修复研究所!济南#+))*E##c北京建工环境修复股份有限公司!北京*)))B+$摘"要"为探索还原稳定化法修复六价铬污染土壤的工程可行性!以某化工厂铬渣堆存场内六价铬污染土壤为研究

2、对象!开展还原稳定化法修复六价铬污染土壤的中试研究%结果表明!d?_?T7(dIT-硫酸亚铁"<0QA$和多硫化钙B",JQ$E种药剂对土壤中,4")$的还原率超过了!!b!糖蜜对,4")$的还原率达!E'!b%经糖蜜和d?_?T7(dIT处理的下层土壤!水溶态铬n交换态铬由原来的#*'>>b分别下降至G'#Gb和#'!+b#经<0QA和,JQ处理的渣土混合物!水B溶态铬n交换态铬由##'*#b分别下降至B'+Fb和#'!Bb!铬的稳定性明显增强%采用糖蜜-d?_?T7(dIT和<0QA处B理后可以降低土

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