污泥中重金属固化-稳定化技术进展

Research Progress on Solidification-Stabilization of Heavy Metals in Sewage Sludge

随着我国污泥产量的日益加大,为减少污泥中重金属的渗出对环境造成的污染,污泥中重金属的处理已成为热点问题。越来越多的研究者意识到:重金属对环境的危害不仅取决于其含量,更取决于其存在的形态;本文以此为基础对污泥中重金属固化-稳定化技术的研究进展进行了综述,比较了各种重金属固化-稳定化技术的优缺点,并提出了新的展望。

With the amount of sewage sludge increased gradually and for avoiding the environment pollution from the leaching of heavy metals in sewage sludge,the disposal and treatment of heavy metals is a hot point. More and more researchers realized that the hazard of heavy metals depended not only on the content but also the existence form. Based on the description,the research progress on solidification-stabilization of heavy metals in sewage sludge methods was reviewed,and their advantages and disadvantages of various methods were compared and discussed. The prospects in this respect were proposed as well.