污泥基生物炭的研究进展

近年来,我国污水处理行业发展迅速,随之而来的污泥处置问题成为亟待解决的难题。污泥来源不同,最终的用途也会有差异,部分污泥含重金属、有机污染物,无法直接农用,使污泥经预处理制备成生物炭是一个较好的出路。目前,不少学者研究污泥热解工艺的可行性,热解产物生物炭作为土壤改良剂施加到土壤中,可改善土壤的物理、化学和生物学性状,有效降低土壤中的污染物浓度。基于此。总结污泥基生物炭在国内外的研究应用进展,并在此基础上展望污泥基生物炭的发展前景。

The Research Progress of Sludge-based Bio-carbon

In recent years, China’s sewage treatment industry has developed rapidly, followed by sludge disposal problems become the priority that environmentalists need to solve. If the source of sludge is different, the ifnal use of sludge will be different. Some sludge contain heavy metals, organic pollutants, so that can’t be used in agriculture directly, it is a better way to make sludge for bio-carbon after pretreatment. At present, many scholars are studying the feasibility of the pyrolysis process, bio-carbon as a soil amendment to the soil can improve the soil physical and chemical properties and biological traits, effectively reduce the concentration of soil contaminants. In this paper, the progress of research and application of sludge-based bio-carbon at home and abroad is summarized, the development prospect of sludge-based bio-carbon is evaluated and forecasted.