期刊论文

Experimental Study on Effect of Calcium Salts on Leaching Efficiency of Heavy Metal Cd,Zn and Cu Composite Polluted Soil

中文

衡阳师范学院学报

1673-0313

2023

44

03

136-141

10.3969/j.issn.1673-0313.2023.03.020

2020JJ4150:湖南省自然科学基金面上项目 CX20221270:湖南省研究生科研创新项目

本校为第一机构

淋洗是重金属污染土壤修复的有效途径。利用土柱模拟淋洗试验,通过设置3个浓度(0,0.2%、0.4%)和3种钙盐(CaCl2、Ca(NO3)2、Ca(Ac)...展开更多 淋洗是重金属污染土壤修复的有效途径。利用土柱模拟淋洗试验,通过设置3个浓度(0,0.2%、0.4%)和3种钙盐(CaCl2、Ca(NO3)2、Ca(Ac)2),研究添加钙盐对重金属Cd、Zn、Cu复合污染土壤的淋洗修复效果,筛选合适的钙盐来修复重金属污染土壤。试验结果表明,对Cd淋出影响表现为同一浓度的钙盐淋洗效果依次为:CaCl2>Ca(NO3)2>Ca(Ac)2。0.2%CaCl2淋洗效果优于0.4%CaCl2,淋洗率分别是对照的2.79和2.2倍。对Zn和Cu而言,当钙盐浓度为0.2%时,淋出效果表现为:CaCl2>Ca(NO...

Leaching is an effective way to remediate heavy metal contaminated soil.Using a soil column simulation leaching experiment,three concentrations(0,0.2%,0.4%)and three types of calcium salts(CaCl2,Ca(NO3)2,Ca(Ac)2)were set to study the lea...MORE Leaching is an effective way to remediate heavy metal contaminated soil.Using a soil column simulation leaching experiment,three concentrations(0,0.2%,0.4%)and three types of calcium salts(CaCl2,Ca(NO3)2,Ca(Ac)2)were set to study the leaching and remediation effect of adding calcium salts on heavy metal Cd,Zn and Cu composite polluted soil,and to choose...