摘要
[目的]找到合适的土壤固定铜、锌、铅、镉的环境条件和吸附性能好、容量大的土壤矿物。[方法]以原沈阳市某冶炼厂废旧厂区污染土壤为研究对象,通过向土壤中添加碳酸钠,研究不同剂量的碳酸钠对土壤重金属污染的稳定化效果。[结果]Na2CO3添加量控制在2%以下时对铜锌铅镉的稳定化效果较好。[结论]该研究可以为降低土壤中铜锌铅镉的生物有效性,治理铜、锌、铅、镉复合污染土壤提供现实依据。
[Objective]The research aimed to find out the optimal soil fixation condition of Cu,Zn,Pb,Cd and the soil minerals which had good adsorption and big capacity.[Method] Taking a smeltery in Shenyang,Liaoning Province as research objects,alkali chemicals Na2CO3 were added.The stability of Na2CO3 on soil heavy metals contamination was studied.[Result] Mutli-sulfured calcium had clear effects on stabilization of soil arsenic when Na2CO3 concentration was below 2%.[Conclusion] The research could provide the theoretical basis for the reduction of the biological effectiveness of Cu,Zn,Pb,Cd and the control of the soil combined contamination.
出处
《安徽农业科学》
CAS
2012年第10期5899-5900,共2页
Journal of Anhui Agricultural Sciences
关键词
污染土壤
铜锌铅镉
稳定化
Contaminated soil
Cu
Zn
Pb
Cd
Stabilization
