Stabilize lead and cadmium in contaminated soils using hydroxyapatite and potassium chloride

被引：0
作者：
Li Wang
Yonghua Li
Hairong Li
Xiaoyong Liao
Binggan Wei
Bixiong Ye
Fengying Zhang
Linsheng Yang
Wuyi Wang
Thomas Krafft
机构：
[1] Chinese Academy of Sciences,Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research
[2] Maastricht University,Department of International Health, Faculty of Health, Medicine and Life Sciences
[3] Beijing Key Laboratory of Environmental Damage Assessment and Remediation,Institute of Environmental Health and Related Product Safety
[4] China CDC,Institute of Geographic Sciences and Natural Resources Research
[5] China National Environmental Monitoring Center,undefined
[6] Chinese Academy of Sciences,undefined
来源：
Environmental Monitoring and Assessment | 2014年 / 186卷
关键词：
Heavy metal; Toxicity characteristic leaching procedure; Pot experiment; Hydroxyapatite; Potassium chloride;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Combination of hydroxyapatite (HAP) and potassium chloride (KCl) was used to stabilize lead and cadmium in contaminated mining soils. Pot experiments of chilli (Capsicum annuum) and rape (Brassica rapachinensis) were used to evaluate the stabilization efficiency. The results were the following: (1) the optimal combination decreased the leachable lead by 83.3 and 97.27 %, and decreased leachable cadmium by 57.82 and 35.96% for soil HF1 and soil HF2, respectively; (2) the total lead and cadmium concentrations in both plants decreased 69 and 44 %, respectively; (3) The total lead and cadmium concentrations in the edible parts of both vegetables also decreased significantly. This study reflected that potassium chloride can improve the stabilization efficiency of hydroxyapatite, and the combination of hydroxyapatite and potassium chloride can be effectively used to remediate lead and cadmium contaminated mining soil.
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页码：9041 / 9050
页数：9
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