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INDIAN INDUSTRIAL DOWNFLOW SOFTENERS

Introduction ::

Softening is a process where Calcium and Magnesium ions are exchanged for Sodium ions. Calcium and Magnesium ions associated with Alkalinity contributes for scale formation . These ions are also called as Total hardness. The strong acid cation ion exchange resin in Sodium form is used for softening the water. When the resin is exhausted , it is regenerated with brine solution ( Sodium Chloride ) 10 % or 15% brine solution is normally used for the regeneration. If the brine solution is passed from the bottom of the resin and service flow is from the top ,then it is called as Upflow softener. If the service and regeneration flows are from top to bottom ,then it is called as Coflow softeners. The softeners are run up to the Hardness slip of 5 ppm as CaCO3 in the treated water which is called as Industrial Zero hardness.

Product Description ::

The Industrial Downflow Softeners is a manually operated ion exchange unit designed specially for industrial use. It is simple to operate, inexpensive to maintain and is widely used in the industry.

The softener comprises a steel pressure vessel containing a bed of cation exchange resin, a regenerating system and control valves.

A strongly acidic cation exchange resin in sodium form is used to exchange sodium ions for the hardness forming calcium and magnesium ions and thus produce soft water. At the end of each service cycle, ion exchange resin is regenerated with sodium chloride solution, after which the unit is ready for the next service cycle.

For larger plants, a brine measuring tank is provided, and a separate salt saturator, preferably in concrete is recommended for bulk storage of salt and preparation of brine. Standard equipment is available to soften water, upto maximum flow rate of 275 m3/hr.

Advantages ::

	Easy to install
	Produces clear, soft and non-scale forming water
	Low operating costs
	Incorporates high capacity polystyrene based type cation exchange resin which is remarkably
	stable and has a long life

Applications ::

Boiler feed

Process water in textile mills

Beverage manufacture

Laundry and air conditioning plants

Cooling tower make-up

Jacket cooling

Hospitals, hotels

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