Water purification using MF or UF with reverse osmosis

摘要

This patent covers a method of purifying impure water contaminated with a filterable impurity and a dissolved impurity,such as sea water.It comprises a number of steps.First,it involves supplying the impure water to a primary microfiltration (MF) or ultrafil-tration (UF) unit to remove the filterable impurity,and produce impure filtered water contaminated with a dissolved impurity.