期刊论文

Study on Reduction and Passivation Remediation of Cr(VI)Contaminated Soil

中文

南华大学学报(自然科学版)

1673-0062

2023

37

01

16-23

10.19431/j.cnki.1673-0062.2023.01.003

校企合作项目(200KHX081)。

本校为第一机构

采用还原剂多硫化钙与包封钝化剂水泥等联合修复Cr(Ⅵ)污染土壤,并对修复后土壤中Cr的稳定性进行了阶段跟踪。研究了水溶液中还原剂多硫化钙投加量、pH值变化对Cr(Ⅵ)还原性能的影响,并在土壤中添加还原剂,以及与钝化剂联合...展开更多 采用还原剂多硫化钙与包封钝化剂水泥等联合修复Cr(Ⅵ)污染土壤,并对修复后土壤中Cr的稳定性进行了阶段跟踪。研究了水溶液中还原剂多硫化钙投加量、pH值变化对Cr(Ⅵ)还原性能的影响,并在土壤中添加还原剂,以及与钝化剂联合修复比较对Cr钝化的效果。研究结果表明,水溶液中,当还原剂多硫化钙添加量为理论计算值的1.03倍时,Cr(Ⅵ)刚好可以被还原去除,且pH在4~10的...

A combination of the reducing agent calcium polysulphide and encapsulated passivate cement was used to remediate Cr(VI)-contaminated soil,and the stability of Cr in the soil after remediation was followed in stages.This paper investigated the effect of reductant calcium...MORE A combination of the reducing agent calcium polysulphide and encapsulated passivate cement was used to remediate Cr(VI)-contaminated soil,and the stability of Cr in the soil after remediation was followed in stages.This paper investigated the effect of reductant calcium p...