中安联合零排技术入选国家目录

Group 1 - The core viewpoint of the article highlights that Zhong'an United Coal Chemical Co., Ltd. has developed a complete technology for zero discharge and resource utilization of high-salinity wastewater, which has been included in the "Directory of Industrial Water-Saving Processes, Technologies, and Equipment Encouraged by the State (2025 Edition)" [1] Group 2 - The coal chemical industry has long faced challenges in treating high-salinity wastewater, with traditional processes being costly and having low salt recovery rates [1] - Zhong'an United Coal Chemical Co., Ltd. is located near the ecologically sensitive Huai River, necessitating stringent environmental protection requirements and the need to overcome industry bottlenecks such as large fluctuations in salt-nitrate ratios and low high-salinity water reuse rates [1] Group 3 - The company utilized the "Ten Dragons" technology research platform of Sinopec, collaborating with various research institutions to innovate and solve industry bottlenecks [1] - The developed technology includes a series of processes: pretreatment, reverse osmosis concentration, nanofiltration salt concentration, and thermal quality crystallization, enabling the treatment of over 180,000 tons of high-salinity wastewater annually [1] - The technology achieves a 100% freshwater reuse rate and recovers over 7,000 tons of industrial salt each year, generating nearly 90 million yuan in indirect economic benefits annually [1]