Application Analysis of High Precision Filtration Oil-containing Wastewater Treatment Process in Daqing Peripheral Oilfield
In recent years,the peripheral oilfields in western Daqing have accelerated the development of unconventional oil,and the complex composition of oil received by the joint station has increased the difficulty of subsequent oily wastewater treatment.The poor adaptability of conventional filtration,severe pollution of filter media,and poor regeneration capacity seriously affect the comprehensive water quality compliance rate.For this reason,the experimental application of the"pretreatment+high-precision filtration"treatment process in the peripheral oilfields of Daqing simplifies the treatment process,improves the filtration accuracy of the filter material,enhances the regeneration ability of the filter material,and has better adaptability to complex liquid production.Daqing Oilfield has continuously optimized the treatment process,improved the equipment structure,continuously optimized and adjusted the operating parameters,combined with gas-water backwashing and dosing system optimization,and promoted its application in sewage treatment stations.This treatment process has achieved a removal rate of over 90%for oil and suspended solids content in sewage,and has achieved good treatment results.
oily wastewater treatmentair flotation devicehigh-precision filtrationgas-water backwashingoptimization of reagent system
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