Which type of pump is most commonly used in solution pumping for water treatment?

In water treatment processes, peristaltic pumps are frequently employed for solution pumping due to their specific advantages. These pumps operate by compressing a flexible tube, which creates a vacuum that draws fluid into the tube and then pushes it out as the compression moves along the tube. This design allows for accurate dosing and minimal contact between the pumped fluid and the moving parts of the pump, which is particularly beneficial when handling chemicals that may react with metal components or require strict hygiene standards.

The ability to maintain a consistent flow rate and to handle a range of viscosities makes peristaltic pumps well-suited for various applications in water treatment, including the dosing of chemicals for disinfection, coagulation, and pH adjustment. Their self-priming capability also makes them effective for various setups in water treatment plants.

Additionally, peristaltic pumps allow for easy maintenance, as replacing the tubing is usually the only required upkeep, which is efficient in demanding operational environments. Thus, the choice of a peristaltic pump for solution pumping in water treatment is primarily due to its reliability, simple maintenance, and effective chemical handling characteristics.