生物炭及其复合材料对铅的吸附研究进展

Advances in the Study of Lead Adsorption by Biochar and Its Composites

生物炭由于其稳定性高和吸附能力较强等优点而被广泛应用于铅污染防治,但单一生物炭的处理能力有限,近年来研究者们将磁性材料、纳米材料以及无机复合材料与生物炭进行复合及联用,并广泛应用于铅污染防治。该文重点综述了生物炭及其复合材料的原料来源和制备方法;总结其吸附铅的影响因素和吸附机理;比较了生物炭及其复合材料不同再生方法,并对生物炭及其复合材料吸附铅的发展前景提出了展望,今后应开展更多不同来源生物炭及其复合材料对铅的吸附研究,为其能更好地应用于工程实践提供理论参考。

Biochar is widely used in the prevention and control of lead pollution due to its high stability and strong adsorption capacity.However,the processing capacity of a single biochar is limited.In recent years,researchers have combined magnetic materials,nanomaterials,and inorganic composite materials with biochar.It is compounded and combined,and is widely used in the prevention and control of lead pollution.This article focuses on the raw material sources and preparation methods of biochar and its composite materials;summarizes the influencing factors and adsorption mechanism of its lead adsorption;compares the different regeneration methods of biochar and its composite materials,and adsorbs lead on biochar and its composite materials.The prospects for the development of biochar,suggest that more studies on the adsorption of lead from different sources of biochar and its composite materials should be carried out in the future to provide a theoretical reference for its better application in engineering practice.