期刊论文

Soil Leaching Technology for Graded Sieve-type Eutopic Heavy Metal Pollution

中文

基因组学与应用生物学

1674-568X

2019

38

7

3002-3008

10.13417/j.gab.038.003002

湖南省教育科学“十三五”规划课题(XJK016CZY048) 国家教育部创新团队发展计划项目(IRT1239) 湖南省级研究生精品课程项目(KC2011B023)共同资助.

本校为第一机构

本研究采用去离子水作淋洗剂,开发一种分级分筛式异位重金属污染土壤淋洗技术,研究显示,土壤中粒径大于25μm颗粒占比接近80%,重金属Pb、Cu、Ni、Cd和Cr含量分别为125.85 mg/kg、85.93 mg/kg、63.29 mg/kg、1.31 mg/kg和108.39 mg/kg,基本符合土壤环境质量二级标准,可用于农田回用土;土壤中粒径小于25μm颗粒占比低于20%,其对应重金属含量超出土壤环境质量三级标准,可用作制砖原料。

In this study, deionized water was used as eluent to develop a graded screen type of soil heavy metal pollution ectopic leaching technology. The results show that the soil particle size greater than 25 μm particles accounted for nearly 80%, and the contents of heavy metals Pb, Cu, Ni, Cd and Cr were 125.85 mg/kg, 85.93 mg/kg, 63.29 mg/kg, 1.31 mg/kg and 108.39 mg/kg respectively, basically meeting the second level standard of soil environmental quality, which can be used for soil to farmland. Soil particle size less than 25 μm accounted for l...