Additionally, electric dehydration, oil cut of waste water and suspended solid content were also tested.

The Research of Skidded Oily Water Treatment Equipment;

Study on the Stabilization Mechanism and Oil/Water Separation Chemicals of Polymer Flooding Produced Oily Water;

In order to make the oily water to the quality of return to oil field,the power free oil-water separator, which had function of coagulation,sedimentation and filtration,was used,the coagulant added amount to be optimized based on the test results.

Experimental study on purifying oily wastewater by air-sparged hydrocyclone and its application;

Research of integrated gas flotation and hydrocyclone for oily wastewater treatment;

Research of skidded equipment for oily wastewater treatment;

On-line cleaning and regeneration of filtering material of oily sewage filter;

Study on the photocatalytic oxidation of oily sewage;

Enmutation character of oily sewage, drilling fluid waste water and waste drilling fluid;

Study on oil-bearing wastewater comprehensive treatment technology for Hekou first station;

Recovery and utilization of oil-bearing wastewater in delayed coking unit of refinery works;

Researches on the new technology of oil-bearing wastewater treatment in continuous casting systems;

Study of coagulation monitoring and control technique of oily waste water from oil field;

Combination processes have been developed for oil field oily waste water treatment, i.

Oily waste water which extsts widely in petroleum production has the characteristics by multi component, abundant with oil content, widely range of water quality and difficult to sepatate.