De-Mineralisation Plants

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De-mineralization is the process of removing the mineral salts from water by ion-exchange. Impurities that remains dissolved in water dissociate to form positive and negative charged particles known as ions. These impurities or compounds are called electrolytes. Generally, all natural water has electrolytes in varying concentrations. An ion-exchange vessel holds ion-exchange resin of the required type through which water is allowed to pass. The selective ions in the water are exchanged with ions or radicals loosely held by the resin. In this way, the water is passed through several vessels or a mixed bed vessel so that both positive and negative ions are removed and water is de-mineralized.

Quality of treated water from a de-mineralization plant
	Cation-anion polishing mixed bed	Cation-anion counter-Current regeneration	Cation-anion co-current regeneration*
Conductivity	0.1 µS/cm at 25°C	0.5 to 1.0 µS/cm at 25°C	5 to 30 µS/cm at 25 C
Sodium	0.01 mg/l	0.05 to 0.1 mg/l	0.5 to 3 mg/l
Reactive silica	01 mg/l	0.025 mg/l	0.1 to 0.3 mg/l

Depending on water salts composition & desired output quality of water following schemes are offered:

• PSF+ACF+SAC+SBA
• PSF+ACF+SAC+SBA+MB
• PSF+ACF+SAC+DG+SBA
• PSF+ACF+SAC+DG+SBA+MB
• PSF+ACF+WAC+SAC+DG+SBA+MB
• PSF+ACF+WAC+SAC+WBA+SBA+MB

At DME our in depth knowledge of process parameters & sound piping knowledge has fetched us many reputed dm plant projects. Our in house vessel manufacturing facility adds to our advantages.

• Capacities : 1000LPH TO 200000LPH
• MOC : PVC/FRP/MSRL
• Operation : Manual/semiautomatic/fully automatic