Review on oily sludge treatment technology

Abstract

Oily sludge is one of the most important solid pollutants produced by petroleum industry. Due to the serious pollution and the increasing production of oily sludge year by year, how to effectively treat oily sludge is the focus of worldwide attention. This paper mainly introduces the source, characteristics, environmental impact, as well as traditional and newly developed oily sludge treatment technologies. With the improvement of national environmental protection requirements, oily sludge quality reduction, recyclable and harmless treatment technology will become the most potential technologies in the future.