生物炭制备及物性特征用于土壤修复的研究进展

Progress in Preparation and Properties of Biochar for Soil Remediation

生物炭是由生物质经热解、水热、气化等技术产生的固体物质,是一种绿色修复环境材料,常用于土壤修复、去除重金属及有机物及土壤肥效改良等。从生物炭制备方法及工艺、生物炭的特征及化学微观结构、生物炭对微生物菌群影响等方面进行了综述,分析了生物炭在土壤修复及农业应用的环境效益,为生物炭用于土壤绿色修复提供理论知识。

Biochar is a kind of green material for environment remediation, which is produced by biomass pyrolysis, hydrothermal, gasification and other technologies, and is commonly used in soil remediation, removal of heavy metals and organics, and improvement of soil fertility. In this paper, the preparation technologies of biochar, characteristics and chemical microstructure of biochar and influence of biochar on microbial flora are systematically reviewed, and the environmental benefits of biochar in soil remediation and agricultural application are analyzed to provide theoretical knowledge for the application of biochar in green soil remediation.