Water treatment of cooling towers blowdown by reverse osmosis

An experimental investigation was conducted to study the effect of operating parameters on the permeable conductivity and product rate were studied for reverse osmosis process. The parameters studied were: - conductivity of feed water in the range of (1000-1500 us/cm), pH in the range of (4-10) and operating pressure in the range of (3-6 bar). The best operating conditions, which lead to good quantity and quality for water product, are: (1000 us/cm) conductivity of feed water, (7) pH and (6 bar) operating pressure. At these conditions the permeable conductivity is (52.905 us/cm) and the product rate is (328.143 1/hr).