
Reverse Osmosis or RO is a water treatment process where water flows over a membrane that has tiny holes referred to as pores. As the water flows over the pores the membrane blocks larger contaminants and allows clean water to pass through while the remaining contaminants are washed away
Stages of a Dashing Aquatics Reverse Osmosis System
Stage 1 - During the initial stage, unfiltered tap or well water passes through a sediment filter that removes silt, sand, clay and other particles that might clog or reduce the efficiency of the RO membrane.
Stage 2 - The water then passes through a Carbon Block Filter. The CBF helps to further remove contaminants in the water. It does this through absorption where contaminants like herbicides‚ pesticides and chlorine form a physical or chemical bond to the active carbon contained within the filter. This is important, as chlorine will shorten the life of the Reverse Osmosis membrane.
Stage 3 - Water is then transferred from the CBF into the Reverse Osmosis membrane. The membrane will then strain out in purities in the water allowing only clean water to pass through the tiny holes or pores in the membrane. Inpurities unable to pass through the membrane are flushed away as waste water.
Stage 4 - Although not mandatory, depending on the Total Dissolved Solids or TDS of your feed water you may wish to have a Deionization cartridge. After leaving the RO membrane, the water flows over a bed of ion exchange resins. During this process the resins strip the water of mineral ions such as sodium, iron, copper as well as anions like Chloride and Bromide. The DI cartridge will further improve the waters taste and smell. After stage 4 you are left with pure refreshing water.
Advantages of Reverse Osmosis Filtration