The reverse osmosis system uses city water as raw water, and then treats the water through a pre-filter (water softener is optional), reverse osmosis membrane. It can remove particles, colloids, organic impurities, heavy metal ions, bacteria, viruses, and 99% of dissolved salts in water. The desalination rate of the whole system can reach 97%-99%, making the conductivity of permeate water <10us/cm. Concentrated water will not pollute the environment.
Reverse osmosis equipment does not need to consider the water quality of the influent too much. The main feature of RO equipment is that it does not need any regeneration and can be stable for a long time.
The second stage reverse osmosis system use the first stage reverse osmosis system output water as raw water to make water to be more pure. Normally output water conductivity<2 us/cm.

Process: raw water tank(buyer provided)→ raw water pump→quartz sand filter →activated carbon filter→security filter→1#high pressure pump→1#ro system→2#high pressure pump→2#ro system→pure water tank(buyer provided)+UV sterilizer(ozone generator) +water supply point