生物质炭吸附土壤有机污染物的研究进展

Research progress on biochar adsorption of soil organic pollutants

生物质炭是生物废弃物在低温限氧条件下热裂解而成的富碳材料,具有独特的表面化学性质及复杂的孔结构,对环境介质中的有机污染物具有很强的吸附能力。文章综述了土壤有机污染物污染现状及危害、生物质炭的制备及优势特性、生物质炭的吸附机理、影响生物质炭对土壤有机污染吸附的因素及生物质炭在有机污染土壤修复中的应用等,并展望了生物质炭吸附土壤有机污染物的未来研究方向。

Biochar is a carbon rich material formed by the thermal decomposition of biological waste under low-temperature oxygen limiting conditions.It has unique surface chemical properties and complex pore structure,and has strong adsorption capacity for organic pollutants in environmental media.This article reviews the current situation and hazards of soil organic pollutant pollution,the preparation and advantageous characteristics of biochar,the adsorption mechanism of biochar,the factors affecting the adsorption of biochar on soil organic pollution,and the application of biochar in the remediation of organic contaminated soil.It also looks forward to the future research directions of biochar adsorption of soil organic pollutants.