安徽农业科学2017，Vol.45Issue(23)：52-54,3.
复合淋洗剂对镉污染土壤的淋洗效果
Leaching Effects of Compound Eluent on Cadmium Contaminated Soil
周芙蓉 1钟礼春 1杨寿南1
作者信息
- 1. 四川省核工业辐射测试防护院,四川成都610052
- 折叠
摘要
Abstract
[Objective] To study the leaching effect of complex eluent on heavy metals.[Method] With cadmium contaminated soil as the material,the removal of cadmium in soil by CA + CaCl2,CA + FeCl3 and CA + CaCl2 + FeCl3 combination reagent was studied by oscillating elution method.[Result] The results showed that the removal rate of cadmium by several reagents in combination was higher than that by single reagent.CA + FeCl3 had the best effect on cadmium removal in soil,and the removal rate was 86.31％-89.61％.The effective content of cadmium in CA + FeCl3 (3∶1) was the highest,reaching 1.794 μg/L,according to the available cadmium content before and after leaching.Morphological analysis results showed that the spray lotion after leaching in soil exchangeable cadmium were mostly leached out,its proportion was greatly reduced,oxidizable and residual content was increased,the activity of cadmium in the soil decreased,the biological toxicity was greatly reduced.[Conclusion] CA + FeCl3 (3∶1) had the best removal efficiency of cadmium in soil,and the removal rate was 89.61％.关键词
淋洗剂/镉污染/土壤修复Key words
Leaching reagent/Cadmium contamination/Soil remediation分类
资源环境引用本文复制引用
周芙蓉,钟礼春,杨寿南..复合淋洗剂对镉污染土壤的淋洗效果[J].安徽农业科学,2017,45(23):52-54,3.
