生物炭及其复合材料的制备及对镉的吸附研究进展

Research progress in the preparation and cadmium adsorption performance of biochar and its composites

随着科技的发展,电镀、化工等行业逐渐兴起,产生多种化合态的镉,对土壤、水体、大气造成污染,在动、植物体内富集,通过食物链进入人体并产生不良影响。利用生物炭及其复合材料来源广泛、吸附性强、造价低廉等优势,吸附环境中的镉。介绍了生物炭及其复合材料的制备方法,研究了炭材料对镉的去除机理及应用现状,以期为实践提供理论参照。

With the development of technology,industries such as electroplating and chemical engineering are gradually emerging,pro⁃ducing various combined forms of cadmium that cause pollution to soil,water,and atmosphere.It accumulates in animals and plants,en⁃ters the human body through the food chain,and has adverse effects.To solve the problem of cadmium pollution,biochar and its com⁃posite materials are utilized to adsorb cadmium from the environment,taking advantage of their wide range of sources,strong adsorption ability,and low cost.This article mainly discusses the preparation methods of biochar and its composite materials,clarifies the adsorption and removal mechanism of cadmium by various materials,as well as the application of cadmium adsorption in water and soil,in order to provide theoretical reference for practice.