Capturing 0.1μm Emulsified Oil: How SINOKLE’s Purely Physical KHC Coalescing Separator Cuts O&M Costs and Chemical Reliance
In oily wastewater treatment processes, the stable existence of micron-sized emulsified oil droplets represents the core difficulty restricting pretreatment efficiency. Traditional gravity sedimentation and dissolved air flotation (DAF) processes exhibit limited removal capabilities for oil droplets with a particle size < 20μm, whereas chemical demulsification methods frequently face risks of high operational costs and secondary pollution.
Targeting this technical bottleneck, Shenzhen Clear Science & Technology Co., Ltd (SINOKLE) launched the KHC High-Efficiency Coalescing Oil Separator. This equipment adopts a purely physical coalescence separation mechanism, aiming to provide high-efficiency and stable advanced oil removal solutions for industries such as petrochemicals, refining, oilfields, and chemical engineering.
Technical Principles: Super-Hydrophilic Coalescence and Flow Field Optimization
The core of the KHC High-Efficiency Coalescing Oil Separator lies in the combination of its patented composite coalescing materials and fluid mechanics design. The equipment utilizes specially designed patented coalescing media and coalescing elements. Through atomic layer deposition (ALD) technology, the material surface undergoes super-hydrophilic modification to form a stable super-hydrophilic layer (water contact angle < 10°), increasing its organic anti-fouling/anti-adhesion capability by 90%. In water, this modified material preferentially binds with water molecules, forcing microscopic oil droplets to be captured, collide, and coalesce into larger oil droplets as they pass through the fiber media.
The internal structure of the equipment is optimized via CFD flow field simulation to maintain a stable laminar flow state, avoiding short-circuiting or circulating flows. The oil-water interface is rationally arranged to ensure rapid oil-water separation. Through the specialized fiber materials and structural design, high-efficiency interception of emulsified oil droplets above 0.1μm is achieved, delivering a remarkable coalescing effect.
Performance Parameters and Operational Advantages
The KHC High-Efficiency Coalescing Oil Separator strikes a balance between treatment efficiency and operational economy. The equipment's influent oil tolerance range is 50-2,000 mg/L, allowing it to withstand short-term high-concentration shocks, while the effluent oil concentration is stably controlled to below 10 mg/L (excluding dissolved oil). Compared to traditional processes, it features a large treatment capacity and a small footprint; its high cross-sectional flux allows a single unit/element capacity to reach up to 10 m³/h, which is 3~5 times that of similar products.
In terms of operational costs, the equipment exhibits remarkably low consumption characteristics. Because it relies on purely physical separation, zero dosing of demulsifiers or flocculants is required throughout the entire process, eliminating the generation and disposal costs of chemical sludge. The system pressure drop is less than 0.05 MPa, resulting in low operational energy consumption. Furthermore, the filter element lifespan is 2~5 times that of traditional coalescing cores, reducing replacement frequency and lowering long-term operation and maintenance (O&M) costs.
Engineering Application and Adaptability
To address the varying operating conditions across different industries, the KHC series offers a product framework combining standardization and customization. Standard modules cover treatment capacities ranging from 10 m³/h to 1000 m³/h, meeting wastewater treatment demands from the workshop level up to the industrial park level. For specialized environments, the equipment can be configured with anti-corrosion types (resistant to acidic wastewater), high-temperature types (temperature resistance up to 120°C), explosion-proof types (Ex d IIBT4), and mobile skid-mounted structures.
In actual engineering case studies, the KHC High-Efficiency Coalescing Oil Separator has successfully validated its technical reliability. In a treatment application case of oily crude desalting wash water (desalter wash water) at a certain petrochemical enterprise, the equipment served as the pretreatment unit, effectively reducing the influent oil concentration to below 50 mg/L. The separated slop oil exhibited high quality and possessed valuable recycling merits.
Conclusion
The efficiency of the pretreatment unit directly dictates the success or failure of the entire wastewater treatment system. Through the deep application of physical coalescence technology, the KHC High-Efficiency Coalescing Oil Separator resolves the industry pain points of difficult separation, high costs, and operational instability associated with oily emulsified wastewater. Its compact structural design and fully automated control mode make it a reliable technological asset for industrial enterprises seeking to achieve water resource reclamation and green production.