Corrosion-optimized Pump Configurations Adapt to High-salinity Brine Conveyance for Global Desalination and Industrial Zero Liquid Discharge Systems

The concentrated brine produced by seawater desalination plants and the high-salinity wastewater produced by industrial production processes such as printing and dyeing, chemical industry and coal chemical industry have extremely high salt content. Long-term contact with high-concentration brine will accelerate the corrosion and aging of ordinary plastic pump materials, and salt crystal precipitation will also cause blockage and abrasion of pump flow channels, shortening the service life of pumps. With the continuous promotion of zero liquid discharge technology worldwide, the market demand for high-salinity brine conveying pumps is increasing.

Yida carries out targeted optimization for high-salinity brine working conditions. The wetted parts are made of modified PVDF materials with enhanced salt corrosion resistance, which can stably resist the corrosion of various high-concentration salt solutions for a long time. The internal flow channel adopts smooth anti-crystallization design to reduce the adhesion and precipitation of salt crystals on the inner wall of the pump cavity, and the widened flow passage structure reduces the blockage risk caused by salt crystallization. The impeller surface is treated with wear-resistant coating to cope with the abrasion of precipitated salt particles.

The brine-optimized pump products cover self-priming pumps for brine lifting, magnetic pumps for concentrated brine delivery and vertical pumps for brine tank circulation, which can meet the pump requirements of different process links of the brine treatment system. The product has been applied in desalination concentrated brine treatment projects and industrial zero liquid discharge systems in many coastal and arid regions.

The special configuration for high-salinity working conditions expands the application field of Yida's anti-corrosion pumps in the field of water treatment, matches the development trend of global industrial wastewater treatment towards resource recovery and zero discharge, and provides reliable fluid conveying solutions for more high-salinity wastewater treatment projects.