生物炭改性及其对污染物吸附与降解行为的研究进展  

Research progress on modification of biochar and its adsorption and degradation behavior

作　　者：孙建财 周丹丹[1,2] 王薇 钱坤鹏 刘洋 张军[1,2] Jiancai SUN;Dandan ZHOU;Wei WANG;Kunpeng QIAN;Yang LIU;Jun ZHANG(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming,650500,China;Yunnan Provincial Key Laboratory of Carbon Sequestration and Pollution Control in Soils,Kunming,650500,China)

机构地区：[1]昆明理工大学环境科学与工程学院,昆明650500 [2]云南省土壤固碳与污染控制重点实验室,昆明650500

出　　处：《环境化学》2021年第5期1503-1513,共11页Environmental Chemistry

基　　金：国家自然科学基金(41703121,41703111);云南省重点研发计划资助(2018BC004)资助.

摘　　要：生物炭因其原料来源广泛、含碳量丰富、成本低等特点被广泛应用于污染环境修复领域。生物炭能否高效去除污染物的关键点在于生物炭所具备的理化性质。生物炭改性能促使生物炭理化性质改变(如比表面积增加、灰分含量降低、丰富表面官能团等),从而促进或抑制其对污染物吸附与降解行为。然而改性生物炭对污染物的吸附或降解行为受改性条件(物理、化学及生物等)和污染物性质的影响。文章回顾了国内外关于生物炭改性方法,以及生物炭改性对污染物吸附与降解行为研究的主要进展。在此基础上,总结了生物炭改性方法、改性机理以及对污染物吸附与降解行为的影响机制,并进一步提出了未来的研究重点和尚待解决的相关科学问题。Biochar has been widely applied in the field of environmental remediation due to its various feedstock,rich carbon content and low cost.The physical and chemical properties of biochar are key to efficient removal of pollutants.Modification of biochar can change its physicochemical properties(e.g.,specific surface area,ash content,and surface functional groups,etc.),thus promoting or inhibiting adsorption and degradation of pollutants on biochar.Normally,modification conditions(physical,chemical and biological treatment)and property of pollutants determine the adsorption or degradation behavior of biochar.This paper reviewed current methods of biochar modification and research progress on adsorption and degradation of pollutants on modified biochars.Based on this,methods and mechanisms of biochar modification,as well as influence on the adsorption and degradation of pollutants,were summarized.At the end of the paper,future research focuses and possible difficulties were prospected.

关 键 词：生物炭 改性 重金属 有机污染物 吸附 降解 

分 类 号：X505[环境科学与工程—环境工程]