重稠油污水处理技术

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重稠油污水30秒“一键分离”
Zhong Guo Hua Gong Bao· 2025-08-25 02:29
Group 1 - The core technology developed by the company is an electrochemical oil removal method based on low-pressure high-frequency pulsed electric fields, which effectively separates heavy oil wastewater without the use of demulsifiers [1][2] - The technology has been successfully applied in CNOOC Huizhou Petrochemical Company for over a year, processing more than 180,000 tons of heavy oil wastewater [1] - The technology allows for rapid demulsification within 50 seconds and efficient oil-water separation within 30 seconds, achieving oil content in treated water below 5 ppm [2] Group 2 - The technology is versatile and can be used for high oil content wastewater, including electro-dehydrated black water and sludge from crude oil tanks [2] - The industrial demonstration unit built in Huizhou Petrochemical has shown satisfactory results, with average oil content and suspended solids reduced to 16.6 mg/L and 25 mg/L, respectively, and treatment costs reduced by over 60% compared to conventional methods [2] - Future plans include expanding the technology's application to high-acid crude oil and aging oil wastewater treatment, as well as developing smaller units for different scales of sludge treatment [3]