Shenzhen water group futian water purification plant, the project design scale is 400,000 cubic meters per day, and the actual daily processing capacity fluctuates between 390,000 cubic meters and 450,000 cubic meters. Due to long-term overload operation, the equipment's backwashing frequency is high, and the water volume in the rainy season is relatively When large, overflow will occur. In 2018, our company carried out technical transformation of the project, and optimized the flux under the premise of ensuring that the emissions were met. After the optimization, the average treatment capacity was 450,000 m3 per day, which effectively relieved the operation load of the water plant and reduced the backwash of the equipment. Frequency and mechanical wear.