On July 11, 2020, the Minhang District Economic Committee organized experts to hold a special support project for advanced manufacturing in Minhang District undertaken by Shanghai Winning Environmental Technology Co., Ltd. "High-salt wastewater gradient membrane concentration and zero-discharge technology development and application" project acceptance meeting. The acceptance expert group listened to the report on the project summary report, technical summary report, test report, scientific and technological innovation report, financial audit report and other material reports by Dr. Li Yunfeng, deputy general manager of our company, and inspected the project site. The acceptance expert group believes that the relevant technical performance indicators and economic indicators have reached or exceeded the requirements specified in the project contract and mandate. After a pilot test, the process flow has been formed and it has the ability to industrialize. The project undertaking unit has completed the various indicators specified in the contract and the assignment letter, and agreed to pass the inspection and acceptance.

      Facing the difficulties and problems in the treatment of high-salt wastewater in the industrial field, our company, with the support of the policy and special funds of the Minhang District Economic Commission, established the technical application development project of "High-salt wastewater gradient membrane concentration and zero-discharge technology development and application". Through the construction of the company’s project team, optimized and developed a gradient membrane ultrafiltration-nanofiltration-reverse osmosis-electrodialysis membrane combined process, developed a low-temperature vacuum evaporator, high-salt organic wastewater biochemical treatment technology and multi-stage high-salt wastewater biochemical treatment The device realizes the high multiple concentration of high-salt wastewater, realizes the reuse of water resources, the biochemical salt tolerance can reach 2.5%, and the effluent can realize the high-salt wastewater treatment process technology route and system that meets the CODCr discharge standard.