活性污泥生物炭的制备及吸附性能的研究进展

Research progress on preparation and adsorption properties of activated sludge-based biochar

污水处理厂产生大量剩余污泥,其处置问题一直以来是研究的重点与热点。利用热解的方法将污泥转化为污泥基生物炭,不但可以解决剩余污泥的处置问题,而且可以在处理污废水的基础上,对剩余污泥实现重新利用。污泥基生物炭在污废水的处理中逐渐受到了关注,尤其是在新兴污染物的去除方面。以污水处理厂污泥为基础的污泥生物炭,分别通过制备方式、热解温度、改性手段等因素综述污泥生物炭对重金属、有机物、新兴污染物的影响,并通过用图表的形式指出改变之后的作用与机理。以期能给今后污泥生物炭在重金属、有机物、新兴污染物领域上的应用和研究提供更多的思路。

The treatment of a large amount of residual sludge from sewage treatment plants has consistently been a research priority and hotspot.Furthermore,the conversion technique of sludge into sludge-based biochar by pyrolysis can not only deal with the residual sludge,but also facilitate its reuse in the sewage treatment.The sludgebased biochar has garnered growing attention for its application in wastewater treatment,especially in the emerging pollutants removal.The sludge-based biochar from the sewage sludge was functional in the field on heavy metals,organic matter,and emerging pollutants by preparation methods,pyrolysis temperature,and modification methods.Moreover,it visually illustrated the mechanisms and functions of these transformations through charts and diagrams.This paper provides more ideas for future research and the practical application of sludge biochar in addressing the removal of heavy metals,organic matter,and emerging pollutants.