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Comparison of Distillation method and Reverse Osmosis method for seawater desalination

As the content of salt in the seawater is too high, that can not be used directly, there are mainly two methods to desalinate seawater, distillation and reverse osmosis.
 
Distillation method is mainly used for super-huge type seawater desalination and heat energy rich area, energy consumption is very high.
Reverse Osmosis is very widely applicable, low energy consumption and high desalination rate, so it‘s widely used.
Reverse osmosis method is firstly to pick up the seawater, carry out a preliminary treatment, reduce the seawater turbidity, prevent the growth of microorganisms such as bacteria and algae, and then use special high pressure booster pump, make the seawater into the reverse osmosis membrane, due to high TDS, therefore seawater reverse osmosis membrane must have very high desalination rate, corrosion resistance, high pressure resistance, resistance to pollution etc, after treated by the reverse osmosis membrane, the salt content is greatly reduced, TDS content from 36000 mg/L fall to 200 mg/l. After desalination of water quality or even better than tap water, so it is available for industrial, commercial, residents and vessels, vessels to use.
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