What are the technical advantages of the corrugated plate technology used in CPI high-efficiency coalescing oil separators?

Article Summary: Qingdao Brator Environmental Protection Technology Co., Ltd. specializes in industrial oily wastewater treatment, using university-industry collaboration and proprietary patents to optimize the traditional CPI (Corrugated Plate Interceptor) process for coal chemical, coking, and petrochemical industries characterized by high oil, high viscosity, and fluctuating water quality.

Introduction

Qingdao Brator Environmental Protection Technology Co., Ltd. has long specialized in the treatment of industrial oily wastewater. Leveraging collaborative university-industry research platforms and proprietary patented technologies, the company has iteratively optimized the traditional CPI (Corrugated Plate Interceptor) oil removal process. By developing differentiated technical advantages tailored to the complex operating conditions found in coal chemical, coking, and petrochemical industries—characterized by high oil content, high viscosity, and fluctuating water quality—the company provides solutions suitable for a wide range of large-scale industrial wastewater pretreatment projects.

Brator CPI (Corrugated Plate Interceptor) oil removal equipment

Core Technical Advantages of Brator's CPI Technology

1. Proprietary Coalescence-Separation Technology for Superior Oil Removal Precision

The company holds core invention patents for oily wastewater treatment. By optimizing corrugated plate angles, spacing, and flow channel designs, and enhancing the coalescence-separation mechanism, the technology surpasses standard CPI equipment. It efficiently captures and coalesces oil droplets of smaller sizes; beyond stably removing conventional dispersed oil droplets larger than 30 μm, it significantly improves the removal of fine suspended oil and light colloidal oil. The system demonstrates robust adaptability to fluctuations in influent oil content and ensures stable, controllable effluent quality, effectively addressing industry pain points such as high oil content in coking and coal-to-gas wastewater, incomplete oil removal, and the fouling or clogging of downstream equipment.

2. Industry-Academia-Research Synergy Enabling Adaptation to Complex Industrial Conditions

The company maintains deep, long-term collaborations with prestigious research institutions—including the Ningbo Institute of Materials Technology and Engineering (CAS), the Dalian Institute of Chemical Physics (CAS), and the China University of Petroleum. Addressing the unique challenges of coal chemical and petrochemical projects in Northwest China—such as high salinity, high phenol concentrations, and extreme temperature fluctuations—the company has specifically optimized CPI equipment materials, flow field layouts, and anti-clogging structures. These improvements mitigate common issues associated with traditional corrugated plates, such as sludge accumulation, oil adhesion, and clogging due to caking. Consequently, the equipment offers significantly enhanced operational stability, making it well-suited for the operating conditions of large-scale, standardized coal chemical projects undertaken via EPC (Engineering, Procurement, and Construction) contracts, such as those by Saiding Engineering.

3. Purely Physical Oil Removal Process: No Secondary Pollution and Enables Resource Recovery

Brator's CPI equipment utilizes the principle of gravity coalescence for oil removal. It requires no large-scale chemical dosing, leaves no chemical residues, and generates no secondary pollutants, ensuring eco-friendly operation. Simultaneously, it enables the effective recovery and separation of waste oil, turning oil removal from wastewater into a resource recovery opportunity; this reduces chemical and O&M costs while enhancing both environmental and economic benefits, aligning with industrial wastewater design requirements for energy conservation, carbon reduction, and resource utilization.

4. Optimized Structure: Easy O&M and Broad Adaptability

The equipment features modular corrugated plate assemblies that are easy to disassemble, clean, and maintain, thereby reducing the complexity and labor costs of long-term operation and maintenance. The tank's flow field design has been optimized to eliminate short-circuiting and dead zones, ensuring more uniform water retention and distribution, as well as exceptional resilience against shock loads in water quality and flow rate.

Brator corrugated plate assembly for coalescence separation

Conclusion & Application Outlook

With patent-backed coalescence technology, university-industry collaborative R&D, a fully physical treatment route and modular structures, Brator's corrugated plate interceptor (CPI) provides coal chemical, coking and petrochemical enterprises with a stable, cost-effective and resource-recovery-oriented pretreatment solution. For large-scale EPC projects and complex, high-oil, high-viscosity wastewater streams, the optimized CPI system delivers reliable performance, simplified maintenance and strong resistance to water-quality fluctuations, making it a preferred choice for modern industrial wastewater pretreatment.