Water Vatika Demineralisers removal of all the cations and onions from water. Demineralisation comprises three stages. All cations are removed in the first stage, onions in the second stage, and in the third stage, demineralised water is passed through a mixed bed to resins (cation and ions-exchange resins) to remove the residual ions.
Hydrochloric or sulphuric acid is used for regenerating the cation-exchanger. For a strongly basic ions-exchanger, sodium hydroxide is used as regenerant. For weakly basic ions-exchanger, ammonia is used.
Maintenance of any plant is a difficult task and the maintenance of ion-exchange units, is especially more difficult than operation for it is the basis for the successful operation of the softener/demineraliser plants. The maintenance program can be broken down to the following sequences: |
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The industry is constantly asking for a higher quality of Demineralise water at affordable price. And Its found that, naturally available water is hardly suitable for industrial demands because of its dissolved contaminations likes number of mineral salts and compounds of Ca, Mg, Na, K & Fe carrying positive ions and So4, Cl, Co3, Hco3 and Sio2 etc carrying negative ions as well as organic and inorganic impurities.
The industrials requirement is a higher quality (dissolved salts free) of water, for the particular process formulations and utility of latest costly equipment, which cannot be Satisfied by natural water sources.
WATER VATIKA Demineralisers are designed based on latest coast effective ion exchange technique of counter current regeneration. The units consist of two corrosion free pressure vessels internally connected in series. The first column containing Cation absorbing exchanger and second column charged with an ions absorbing exchanger. The water flow through the bed of a Cation exchanger then the bed of an ions exchanger. Thus the systems remove dissolved salts from water to a specified degree.
After using total exchange capacity of systems Cation and ions regeneration must be carried out. The Cation exchanger is regenerated with an acid and ions exchange resin is regenerated with an alkali solution.
WATER VATIKA Demineralisers consists of acid/alkali proof pressure vessel with internal fittings and initial charge of Cation and ions exchanger, set of regeneration equipment, hydraulic ejectors, acid and alkali tanks and conductivity meter to monitor treated water quality. These Demineralisers offer a practical range of capacities and flow rates necessary to serve wide variety of applications. |
