载锰生物炭制备及其在环境修复中应用研究进展

Research progress of manganese-loaded biochar preparation and its application in environmental remediation

生物炭具有原料来源广、制备成本低、比表面积大等优点而成为一种有潜力的吸附剂,是固体废弃物资源化利用的一个重要方向,但吸附能力有限会限制其在环境修复的实际应用。通过不同方法对生物炭进行改性能够优化其理化性质,从而增强生物炭对污染物的去除能力。近年来,在生物炭上负载不同形态锰形成的载锰生物炭因在环境修复中表现出良好的应用潜力而备受关注。本文重点归纳和总结了载锰生物炭制备方法及其在去除环境中有机污染物和重金属方面的应用和机理研究,并介绍了其在高级氧化、污泥处理、低温选择性催化还原氮氧化物及再生利用等方面的应用。结合研究现状,提出未来载锰生物炭在制备、应用及应用后对环境影响方面的研究方向,以期为载锰生物炭在环境修复中更广泛应用提供参考。

Biochar is a promising adsorbent due to its wide source of raw materials,low preparation cost and large specific surface area,and is an important direction for the resource utilization of solid waste,but its low adsorption capacity limits its practical application in environmental remediation.The modification of biochar by different methods can optimize its physicochemical properties and thus enhance its ability to remove pollutants.In recent years,the preparation of Mn-loaded biochar by various methods has shown great potential for environmental remediation.This paper summarized the preparation of Mn-loaded biochar and its application in the removal of organic pollutants and heavy metals in the environment,and briefly discussed its application in environmental remediation such as advanced oxidation process,sludge treatment,low temperature selective catalytic reduction of nitrogen oxides and recycling.In light of the current research status,possible future research directions for the preparation,application and post application impacts of manganese loaded biochar were proposed,with a view to providing references for the wider application of manganese loaded biochar in environmental remediation.