Astech Hydro Systems

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Water Demineralisation Plant ASTECH Demineralised Water can be used wherever purified water is required. The treated water meets the specifications of distilled water, except that it is not Pyrogen and Bacteria free. Principle Of Operation: The raw water passes successively through two columns namely Cation And Anion Exchangers. The Cation Exchange column contains strongly acidic resin in Hydrogen form. All the dissolved solids causing hardness such as Calcium, Magnesium etc. are exchanged with H* and get converted into corresponding acids. The acidic effluent is then passed through the Anion Exchange column wherein the Anion resin in hydroxyl (OH)-form retains the bicarbonate, chloride and sulphate ions, producing water equivalent to distilled water. After predetermined quantity of water passes through the Demineraliser, all the resins contained in both columns get exhausted and require regeneration. The cation is regenerated with Hydrochloric Acid and Anion resin with Sodium Hydroxide (Caustic Soda). Available from 250 LPH - 25000 LPH