生物炭在土壤重金属污染修复的应用研究进展

Progress of using biochar in remediation of heavy metal polluted soil

介绍了生物炭修复重金属土壤污染的研究进展,重点讲述了生物炭固定土壤重金属的机理、生物炭有效性的影响、生物炭对植物重金属吸收的影响、生物炭在田间工程应用的研究成果以及生物炭作为土壤改良剂存在的风险与不足,希望在满足安全生产的前提下,推进生物炭修复在农业生产中工程化应用。开启生物炭的生命周期评价,建立生物炭生命周期数据库,以便为以后生物炭使用提供全面、有效的科学依据。

Combined with the existing research,the research progress of biochar remediation of heavy metal pollution is reviewed.This paper focuses on the mechanism of biochar immobilization of heavy metals in soil,the effect of biochar on the absorption of heavy metals by plants,the research results of the application of biochar in field engineering,and the risks and shortcomings of biochar as a soil improver.Finally,it is hoped that on the premise of meeting safe production,the popularization of biochar should be promoted in agricultural production,rather than limited to scientific research.Start the life cycle assessment of biochar and establish a biochar life cycle database to provide a comprehensive and effective scientific basis for the future use of biochar.