System Composition

1. Pretreatment Generally includes raw water pumps, dosing devices, quartz sand filters, activated carbon filters, precision filters, etc. Its main function is to reduce the raw water's pollution index, residual chlorine, and other impurities to meet the feed water requirements for reverse osmosis. The equipment configuration of the pretreatment system should be determined based on the specific conditions of the raw water.

2. Reverse Osmosis Mainly consists of multi-stage high-pressure pumps, reverse osmosis membrane elements, membrane housings (pressure vessels), brackets, etc. Its primary function is to remove impurities from the water, ensuring the effluent meets usage requirements.

3. Post-Treatment This is an additional configuration employed when reverse osmosis alone cannot meet the effluent requirements. It mainly includes one or more devices such as anion beds, cation beds, mixed beds, sterilizers, ultrafiltration systems, EDI, etc. The post-treatment system further enhances the quality of the reverse osmosis effluent to meet usage standards.

4. Cleaning Primarily consists of cleaning tanks, cleaning pumps, and precision filters. When the reverse osmosis system becomes contaminated and the effluent indicators no longer meet requirements, cleaning is necessary to restore its efficiency.

5. Electrical Control Used to control the normal operation of the entire reverse osmosis system. Includes instrument panels, control panels, various electrical protections, electrical control cabinets, etc.