摘要
近年来,随着工农业的发展,土壤重金属污染日趋严重,对人类健康和食品安全造成严重威胁。利用生物炭来治理土壤重金属污染已经成为近年来的研究热点,生物炭可有效吸附并固定重金属使其难以迁移转化,具有良好的应用前景。本文综述了生物炭的性质、制备方法和预处理方法,简述了生物炭修复土壤重金属污染的机理,列举了国内外生物炭修复土壤重金属污染的研究进展。最后对生物炭治理技术做出展望,以期对科技工作者日后的研究提供参考。
In recent years, with the development of industry and agriculture, the pollution of heavy metals in soil has become more and more serious, which poses serious threat to human health and food safety. Using biochar to treat heavy metal pollution in soil has become a hot spot in recent years. Biochar can effectively adsorb and fix heavy metals, making it difficult to migrate and transform,so it has a good application prospect. This paper reviews the properties, preparation methods and pretreatment methods of biochar, and briefly describes the mechanism of restoration of heavy metal pollution in soil,and lists the research progress of remediation of soil heavy metal pollution by biochar at home and abroad. At last, the prospect of biochar treatment technology was made in order to provide reference for the future research of scientists.
作者
李伟婕
张超
Li Wei-jie;Zhang Chao(Southwest Forestry University, Yunnan Kunming 650224;Chengdu University of Technology, Sichuan Chengdu 610059)
出处
《生物化工》
2019年第4期146-148,共3页
Biological Chemical Engineering
关键词
生物炭
土壤重金属污染
修复机理
Biochar
Soil heavy metal pollution
Remediation mechanism
