粉煤灰廉价吸附剂资源化利用的现状和对策分析

Actuality and countermeasure analysis of coal fly ash resource utilization as a low-cost absorbent

粉煤灰是燃煤电厂排放的固体废弃物,其大量堆积造成环境污染和资源浪费,对粉煤灰的资源化利用近年来引起人们的广泛关注.粉煤灰呈多孔结构,具有良好的吸附性能,可用作处理废水中污染物质的廉价吸附剂.本文对粉煤灰吸附剂在水污染治理中的研究现状进行分析和总结,在此基础上,根据粉煤灰的组成和性质,提出粉煤灰资源化利用的方向为化学处理提高吸附性能和成型造粒以利于其工业化利用.

Coal fly ash is a waste substance from thermal powder plant, and the accumulation of coal fly ash will induce many environmental problems and resource waste. The utilization of coal fly ash as resource has attracted more attention in recent years. Coal fly ash has a good absorption capacity for the porous structure and can be used as a low-cost absorbent for the removal of pollutant from aqueous solution. In this paper the actuality and utilization of coal fly ash as a lowcost absorbent has been reviewed. Based on this, research directions of coal fly ash utilization as resource are proposed for chemical treatment to enhance the absorption capacity and granulation.