生物炭对废水中重金属吸附研究进展

摘要

生物炭(Biochar)是废弃生物材料经厌氧限温制备而形成的一种碳含量丰富的炭.由于其精密的孔隙结构和独特的表面化学性质,且廉价易加工,生物炭被广泛应用于废水重金属的修复治理中.近年来,生物炭对废水中重金属吸附的定性和定量描述已经成为研究的热点.对生物炭的概念和基本特性、生物炭吸附废水中重金属的机理与理论模型、影响吸附的因素等进行综述,并探索了生物炭吸附重金属未来的研究方向.%Biochar is the product of thermal degradation of the waste biological material in the absence of air,which is made up of abundant carbon.Biochar is widely applied to absorb heavy metals in the waste water,due to its unique chemical properties,precise pore structure,cheap cost and easy processing.Biochar has been a research hotspot on the qualitative and quantitative description of absorbing heavy metals in the waste water.This article summarized the concept and the basic characteristics of biochar,mechanism,theoretical model for describing the absorption process,affecting factors and the future research direction.