The reverse osmosis technique is used, whose characteristics are:
- It is the process in which pressure is exerted on water so that it passes through a semi-permeable membrane.
- Separation, due to the effect of osmotic pressure, of all salts and chemical compounds, in the order of 99.5%;
- The temperature, which influences, must not be lower than 4 ° C or higher than 35 ° C;
- The contamination of the membrane will depend on the previous treatment applied to the incoming water;
- The higher the turbidity, the higher the degree of pretreatment.