- Function: Peristaltic pumps are used in the disinfection process of water treatment systems to deliver sodium hypochlorite, used as a disinfectant.
- Features: Due to the highly corrosive, easily decomposed, and gas-release properties of sodium hypochlorite, the stability and precision of the equipment used for adding it are extremely important. Peristaltic pumps deliver the medium by circulating and squeezing the tubing with rollers. The sodium hypochlorite disinfectant solution only contacts the inner wall of the pump tubing, completely separating it from other parts of the pump, eliminating the risk of leakage and pump wear. Peristaltic pumps also have self-priming and dry-running capabilities, meaning they can also be used to deliver air. If gas is generated during the addition of sodium hypochlorite solution, the gas can be naturally discharged with the fluid, eliminating the risk of crystallization and blockage, and requiring no additional auxiliary venting device, thus balancing economy and safety.
- Typical Applications of Peristaltic Pumps in the Water Treatment Industry:
1) In the sodium hypochlorite disinfection process of municipal wastewater treatment, peristaltic pumps are used to precisely dilute the concentrate to 1% and add it to the effluent tank. Its resistance to gas and crystallization effectively solves the problem of salt solidification in pipelines, ensuring the continuous operation of unattended systems.
2) In drinking water and swimming pool disinfection processes, for scenarios with high requirements for residual chlorine stability, the peristaltic pump is linked with online water quality instruments (pH/ORP/residual chlorine monitors), and threshold-triggered dosing is achieved through a PLC control system, increasing the residual chlorine compliance rate to over 98% and reducing the frequency of manual inspections by 50%.
3) In water purification equipment, using a peristaltic pump to replace the traditional diaphragm pump for delivery in simple water channels can completely eliminate injection interruptions caused by airlock, ensuring stable and compliant residual chlorine concentrations, and reducing the frequency of emergency intervention by maintenance personnel to near zero.