Principle of Reverse Osmosis (RO)
Taking pressure as impetus, in the process of separation, RO uses pump to put pressure on brine solution or wastewater so that to overcome the resistance of natural osmotic pressure and membrane. The dissolved salts or contaminated impurities in the water are blocked on the other side of the reverse osmosis membrane.
● Regular Application in Water Treatment
Water is an indispensable material condition for people to survive and carrying out production activities. Due to the increasing shortage of freshwater resources, the world's reverse osmosis water treatment plant capacity has reached millions of tons per day.
● Application in Municipal Sewage
At present, the application of RO membrane has been attached great importance, especially in the reuse of water outlet in sewage treatment plant and reclaimed water recycling at the second stage .
● Application in the Treatment of Heavy Metals Wastewater
Transferring the pollution is a conventional treatment of heavy metals wastewater, which means transfer the heavy metals dissolved in the wastewater into sediment or other ways. The final disposal is backfilling, and the second pollution of the heavy metals still harms to the underground water and surface water in a long term.
● Application of Oily Wastewater
Oily wastewater is a kind of large and wide wastewater. If it discharges into water body directly, the oil film will be formed in the water surface and stops the oxygen dissolving into the water so that leading to hypoxia of water, biological death, odor and serious pollution to the ecological environment. Take water from the oilfield of 3.5mg/L oil and (16~23) mg/L TOC, and then treat water to reach the quality of boiler water. This is the process of oily wastewater treatment and reuse to the boiler water in power plant.
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