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This post was last edited by Desert Fish on 2021-11-10 at 21:03. Completion of the intelligent upgrade of Xiangyu Salt Chemical’s desalination system. Author/Source: Xiangyu Salt Chemical; Date: 2021-11-01; Views: 11. In order to enhance environmental protection measures, reduce production costs, improve the automation level of production facilities, and meet the requirements of industrial upgrading, the company upgraded its thermal power desalination system in 2021. The approach taken was to repurpose existing equipment: the original 5 filters were replaced with multi-media filters, while the 4 anion and cation exchange beds were replaced with activated carbon filters as pre-treatment units for reverse osmosis. All filters were upgraded to allow for automated operation. Two new 2*75t/h reverse osmosis RO membrane systems were installed and operated in parallel with the existing 2*60t/h systems, with 5 cation exchange beds and 4 anion exchange beds kept as backups. The upgrade project for the thermoelectric water desalination system was led by the company’s Technology Planning Department, with Shandong Yitong Company responsible for its implementation. Construction began in March 2021, and the Thermoelectric Division actively participated throughout the process in terms of construction support and operational testing. During the renovation of the project, it was necessary to convert the existing ion exchangers and filters into pre-treatment units, and new reverse osmosis operation rooms along with associated electrical and instrumentation facilities had to be built in the existing plant area. This led to numerous overlapping tasks. The Thermal Power Division overcame difficulties such as carrying out operations while construction was in progress and dealing with complex on-site conditions, thereby creating the best possible conditions for the safe execution of the project. At the end of August 2021, the project was completed as scheduled, and it went into operation in September. With the strong support and careful guidance from the company’s leadership, the Technology Planning Department, the Production Department, and other functional departments, the staff at the water treatment facility worked diligently and intensively to fine-tune the system. Now all parameters are operating normally: the production capacity of each unit reaches 80–90 tons per hour, which is above the designed value of 75 tons per hour; the system’s recovery rate exceeds 75%, while the desalination rate is over 98.5%. This results in a reduction of acid and alkali usage by 110 tons per month and 90 tons per month respectively, enabling annual cost savings of over 2.4 million yuan. This technical upgrade enabled the automatic operation of the reverse osmosis system, reduced consumption costs, minimized the need for treatment and disposal of wastewater generated after the regeneration of the anion and cation exchange resins, lessened the workload on workers, **and reduced safety and environmental risks, achieving the intended objectives of the project renovation.