Remediation of biochar on heavy metal polluted soils

2017 3rd International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Wang, Shuguang^1 ; Xu, Yan^1 ; Norbu, Namkha^1 ; Wang, Zhan^1

Shaanxi Provincial Land Engineering Construction Group Co., LTD, Xi'an

710075, China^1

关键词: Ecological safety;    Environmental stability;    Heavy metal pollutants;    Heavy metal polluted soils;    Raw material sources;    Sewage irrigation;    Soil environment;    Technical support;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/108/4/042113/pdf
DOI  :  10.1088/1755-1315/108/4/042113

来源: IOP

【 摘 要 】

Unreasonable mining and smelting of mineral resources, solid waste disposal, sewage irrigation, utilization of pesticides and fertilizers would result in a large number of heavy metal pollutants into the water and soil environment, causing serious damage to public health and ecological safety. In recent years, a majority of scholars tried to use biochar to absorb heavy metal pollutants, which has some advantages of extensive raw material sources, low-cost and high environmental stability. This paper reviewed the definition, properties of biochar, the mechanism of heavy metal sorption by biochar and some related problems and prospects, to provide some technical support for the application of biochar into heavy metal polluted soils.