Hi Aggasit, there is lot of evaporation methods are available (multi effect evaporator, Mechanical vapor re-compressor followed by dryer like Agitated Thin Film dryer etc,.) to treat the RO reject water.

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Hi Aggasit, there is lot of evaporation methods are available (multi effect evaporator, Mechanical vapor re-compressor followed by dryer like Agitated Thin Film dryer etc,.) to treat the RO reject water.