... Element, High Quality, Guarantee: 3 Years Reverse osmosis (RO) is a membrane technical filtration method that ... pressurized side of the membrane and the pure solvent is allowed to pass to the ... (such as the solvent) to pass freely. Machine description: 1,Advance RO technology applied, high ... 3, desalination for sea and brackish water 4, waste water treatment for metallurgy, light industry, electroplating ...