Reverse Osmosis System

Clean water is everyone’s concern. People have become sensitive about the safety and purity of the water they drink. Many of them resort to use desalination systems at home. The most common used technique to desalinate water is “Reverse Osmosis” or RO system. RO systems desalinate water through three stages: pre-treatment, reverse osmosis and post-treatment.

  

  A RO system may seem complex when looking at its colored tubes and multitude of filters; however, it is a very simple process to get desalinated water. First, the pretreatment of water takes place where Cold Water Line Valve pumps water from the water source for the RO system into the RO pre-filters. The water passes through a sediment filter to remove sand silt, dirt and other sediment. Then, this water moves to a carbon filter to remove chlorine. Using one pre-filter or more depends on the product water requirements and its salinity.

  Second, the water goes through the reverse osmosis process. In this process, the water is pushed through a semi permeable membrane. This membrane, being as thick as a cellphone, allows only the water to pass through, retaining all impurities and particles larger than .oo1 microns. Those contaminants are then flushed down the drain. Then the water is ready for the third and last treatment.

  

  Before the water leaves the RO storage tank to the RO faucet, it must go through post-filters. A post-filter is typically carbon whether in granular or carbon block form. In this stage, any remaining odor or tastes are removed from the product water. This process is required to make the water potable to the human use. Next, this water is held in the RO storage tank, of capacity up to 2.5 gallons of water. Finally, the water comes out, highly-purified, from the RO faucet which is usually installed on the kitchen sink.

  In conclusion, RO systems are very convenient. They consume no energy. They have low production cost i.e. they give highly-guaranteed water for pennies per gallon.