吸附法处理含油废水的研究进展

摘要

Oily wastewater is a kind of industrial wastewater to be hardly treated. The adsorption method is usually used to treat oily wastewater because of its good treatment effect. In this paper,mechanisms,adsorption characteristics and modification methods of adsorbents (activated carbon, bentonite, expanded graphite, fly ash,etc.)used in the adsorption method were introduced. Research achievements of adsorbents at home and abroad in recent years were summarized, limitations and improvement direction of existing adsorbents were discussed as well as development trend of adsorbents in the future.%含油废水是一种较难处理的工业废水，而吸附法处理则可以达到较好的效果，所以常采用吸附剂的吸附作用实现处理过程。结合吸附法处理含油废水过程中较常使用的吸附剂，分别介绍了活性炭、膨润土、膨胀石墨、粉煤灰等的作用机理、吸附特性及部分改性方法。综合国内外近年来的研究成果，总结现有吸附剂的局限性及其改进方向，并对今后吸附剂的发展前景进行探讨。