1) Pre-treatment and post-treatment of RO plant with feeding water of seawater, surface water, well water, ground water, wastewater, etc. 2) For the treatment of drinking water. 3) Cooling water reuse, producing pure water for making food and drinking. 4) Reuse of deep treated wastewater. 5) Removing turbidity and bacterias from wine, juice, beer, etc. 6) Concentration of food, milk etc. 7) Filtration of blood. 8) Gas/Water separation, Gas/Gas separation.