Introduction to the functions of single-stage reverse osmosis equipment

1. Raw water tank: Storing raw water together with water can reduce subsequent water consumption.

2. Raw water booster pump: provides flow and pressure for the normal operation of the pre-treatment system of single-stage reverse osmosis equipment.

3. Sand filter: equipped with acid washed quartz sand. When water flows upstream through the filter layer, some of the suspended solids in the water enter the upper layer of the filter material to form small pores, which are mechanically retained by the surface of the filter material. At the same time, the intercepted suspended solids overlap and bridge with each other, as if forming a membrane on the surface of the filter layer, continuing to filter the suspended solids in the water. This filtering effect not only exists on the surface of the filter layer, but also exists when water enters the intermediate filter layer. In addition, due to the tight arrangement of filter media, the suspended material in the water passes through the filter media. When certain curved channels are bent, there will be more opportunities and time for collision and contact with the surface of the filter material. Therefore, suspended solids in the water adhere to the flocculent particles on the surface of the filter material, further purifying the water. The operation of the filter - backwashing - washing - operation process can be completed by switching relevant valves.

4. Activated carbon filter: The activated carbon filter contains activated carbon, supported by coarse quartz sand, which adsorbs residual chlorine, suspended colloids, and some organic matter in water, removing microorganisms, heavy metals, and odors.

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