Reverse osmosis equipment technology principle and general process flow

Reverse osmosis is a membrane separation technique that uses pressure to drive the force through a (semi-permeable) membrane. When the pressure applied in the system is greater than the osmotic pressure of the aqueous solution, the water molecules are continuously permeable. Through the membrane, the product flows into the central tube through the product water channel, and then impurities in the water flowing out at one end, such as ions, organic matter, bacteria, viruses, etc., are trapped on the inlet side of the membrane, and then flow out at the outlet end of the concentrated water to achieve separation and purification. purpose.

Reverse osmosis equipment uses membrane separation technology to effectively remove charged ions, inorganic substances, colloidal particles, bacteria and organic substances in water. It is the best equipment for high purity water preparation, brackish water desalination and wastewater treatment. Widely used in electronics, medicine, food, textile, chemical, power generation and other fields.

The typical process flow of reverse osmosis ultrapure water equipment is:

1, pretreatment - reverse osmosis - purification tank - ion exchanger - UV lamp - pure water pump - water point

2, pretreatment - primary reverse osmosis - secondary reverse osmosis (positive charge reverse osmosis membrane) - purification tank - pure water pump - UV lamp - water point

3, pretreatment - reverse osmosis - intermediate tank - intermediate pump - EDI device - purification tank - pure water pump - UV lamp - water point

4. Pretreatment→UV sterilization device→First-level RO device→Secondary RO device→Intermediate water tank→EDI device→Deoxidation device→Nitrogen-sealed pure water tank→Except TOC UV device→Polishing mixed bed→Ultrafiltration device→Water point

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