In the coagulation stage, the introduction of high-density
insoluble medium particles accelerates the formation and settling of flocs through the gravity and adsorption of the carrier. This achieves significantly enhanced settling rates.
专精特新
核心技术
By introducing dense microsand during the coagulation stage, it expedites the growth of flocs, increasing their density and volume. This increases the settling speed, which is 20-30 times that of a regular sedimentation tank.
This technology is applicable to both municipal waterworks and wastewater treatment plants, particularly effective in treating low-temperature and low-turbidity water in northern regions.
The remarkably high settling speed minimizes the space needed for sedimentation tanks, which takes up only 5%-10% of the area compared to traditional sedimentation tanks.
Coagulants are added to the coagulation tank to destabilize suspended solids and colloidal particles in water, forming larger flocs. Then microsand and flocculants are respectively added in the injection tank and maturation tank. The destabilized impurities use the carrier as a flocculation nucleus, and through the bridging adsorption of polymer chains and the trapping action of microsand particles, denser flocs are rapidly formed. This rapid formation of denser flocs significantly shortens settling time and improves treatment efficiency in the inclined tube settler. Mircrosand is efficiently separated and recirculated through a hydrocyclone, allowing for the recovery of microsand for reuse within the system.
This technology is widely used in municipal water supply, municipal wastewater drainage, and industrial wastewater treatment. It shows excellent performance even in challenging conditions such as low temperatures, fluctuating water volumes, high turbidity, and elevated organic content.
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