High-Efficiency Emulsified Oil Separation Equipment: SINOKLE's Purely Physical Technology Solves Industrial Wastewater Challenges
In industrial fields such as petroleum refining and oilfield production, the treatment of oily wastewater - especially highly emulsified oily wastewater - has long been a pain point in environmental operations. Conventional processes rely on chemicals, which are not only costly but also generate large amounts of oily sludge (hazardous waste), causing secondary pollution. Drawing on its independently developed CDFU cyclonic dissolved gas flotation system and KHC high-precision coalescing oil-water separator, SINOKLE provides the industry with an efficient, green and economical integrated solution built on a disruptive purely physical, zero-chemical technology.
Core Technical Principle: Purely Physical, Highly Efficient Demulsification and Separation
SINOKLE's CDFU (cyclonic dissolved gas flotation) system integrates cyclonic centrifugal separation with ultra-fine bubble flotation, generating uniform ultra-fine bubbles only 5-30 um in diameter. These bubbles greatly increase the contact area and adhesion efficiency with emulsified oil droplets (0.1-20 um) in the water, completing oil-water separation rapidly in a high-efficiency centrifugal field, with single-stage oil removal efficiency above 90%.
Meanwhile, the KHC coalescing oil-water separator uses a patented oleophilic hydrophobic fibre material and integrates cyclonic separation with collision coalescence, efficiently removing emulsified oil with droplets of 0.1 um and above and stably keeping effluent oil content below 10 ppm without any chemical demulsifier, eliminating sludge generation at the source.
Performance Comparison: Significantly Better Than Conventional Processes

With a compact skid-mounted design, SINOKLE equipment occupies only 1/3 of the footprint of conventional processes and shortens hydraulic retention time to under 5 minutes, yet achieves higher precision and more stable effluent quality.
Application Scenarios and Proven Cases
The technology has been widely applied to difficult emulsified oily wastewater scenarios, including:
Refining and coking sour water: in a petrochemical project, influent oil content reached 2,000 mg/L and was reduced to below 200 mg/L after treatment.
Oilfield produced fluid: oil removal above 95% is maintained under high temperature, high salinity and high emulsification.
Offshore platforms and tank-farm drain water: highly integrated equipment with strong shock-load tolerance, suited to harsh environments with limited space and fluctuating water quality.

CDFU equipment working principle: integrating cyclonic, dissolved gas and ultra-fine bubble technologies for efficient separation

CDFU cyclonic dissolved gas flotation unit at a project site
Why Choose SINOKLE?
SINOKLE equipment not only improves treatment performance but also delivers significant economic and environmental benefits:
✅ Low operating cost: no chemical consumption, lower sludge disposal costs;
✅ Resource recovery: separated crude oil can be recovered and reused, creating additional revenue;
✅ Intelligent control: fully automatic operation with remote monitoring, reducing manual intervention;
✅ Fast delivery: modular skid-mounted structure supporting rapid installation and online retrofits.
Centred on 'purely physical, zero chemical, highly efficient separation', SINOKLE continues to drive difficult industrial wastewater treatment toward a green and efficient new era. If you are facing emulsified oil separation challenges, you are welcome to contact SINOKLE for a customised solution and technical consultation.