Comparative Experimental Research on Oily Wastewater Treatment by Hydrocyclones in Series

摘要

Oily wastewater treating technologies of tertiary oil recovery in oilfields are introduced first. The technological process and the main test contents of wastewater treatment are described. Oily wastewater was treated advanced by multi-type hydrocyclones in two stage series. The hydrocyclone type per stage, combination mode and operation parameter in two stage series are determined by separation efficiency. The experimental results show that the highest efficiency can reach up to 94%.