摘要
针对南京一块经济适用房用地土壤中存在Cr6+超标的问题,先用硫酸亚铁将土壤中的Cr6+还原成Cr3+,再用NaOH进行稳定化处理,最终使土壤中的铬转变成Cr(OH)3,处理后土壤中的六价铬达到了相应标准要求,并且消除了重金属向食物链转移的风险,实验证明该方法能够很好地修复铬污染土壤,使之满足建设住宅的要求。
In Nanjing,a piece of affordable housing land soil in the presence of Cr6＋ exceed the standard,first with ferrous sulfate solution in soil Cr6＋ is reduced to Cr3＋,then NaOH stabilizing,eventually made of Cr in soil to Cr（OH）3,processing in soil Cr six to the requirements of relevant standards,and eliminates the heavy metal to food chain transfer of risk,experiment shows that this method can very good remediation of chromium contaminated soil,so as to meet the requirements of residential construction.
出处
《安徽农学通报》
2013年第3期77-78,共2页
Anhui Agricultural Science Bulletin
