Demineralisation
Demineralisation unit’s faqs
The Demineralisation process is the removal of all minerals
from the raw supply water. Most demineralisation units
consist of a sequence of cation exchanger vessels and
anion exchangers in which cation or cationic resins in
the hydrogen form and anion or anionic resins in the hydroxide
form are filled-in respectively. Raw water passes through
the cation exchange vessel where cations (calcium, magnesium,
sodium etc) are exchanged with hydrogen ions. In the anion
exchange vessel, negative ions (chloride, sulfate, hydrocarbonate)
are in turn exchanged with hydroxide ions. Hydrogen ions
produced in the first stage react with hydroxide ions
giving h20._The regeneration process of the ion exchange
resins cation and anion takes place when the resins are
exhausted. The regeneration is performed with solution
of hydrochloric around 32% in strength and caustic soda
around 28% in strength.
Mixed-bed deionization process
With industrial water equipments mixed-bed demineralisers
the cation and anion exchange resins are mixed and installed
in a single pressure vessel constructed of grp or stainless
steel. The mixture of cation and anion exchange resin
in a single column makes a mixed bed demieraliser equivalent
to a larger series of twin bed plants. As a result, the
treated water quality from a mixed bed demineraliser is
appreciably higher than that produced by a twin bed plant.
Our range of mixed bed demineralisers are more efficient
in purifying the incoming raw feed water, mixed bed demins
are more sensitive to impurities in the raw water supply
and involve a more complex regeneration procedure. Mixed
bed demins are normally used to polish the water to better
levels of purity after it has been initially treated by
either a twin bed demineraliser or a such a process as
reverse osmosis.
Electrodeionisation, EDI Electro OR DI Systems are used
in conjunction, typically i with reverse osmosis (RO)
and other high-end purification equipment. Our high-quality
deionization modules continually produce ultra pure water
up to 18MW/cm. EDI can be installed to treat water continuously
or intermittently.
Can I drink demin or demineralised water?
Demineralised or demin water is very aggressive. It is
poor tasting and poor thirst quenching characteristics
therefore demineralization equipment is only found in
industrial applications.
Demineralised or demin water will cause adverse health
effects due to the deficiency of certain constituents
and minerals.
Does Industrial Water Equipment service demineralization
equipment?
Yes, Industrial Water Equipment service our own equipment
alongside other manufacturers equipment. We have many
engineers across the UK and Ireland qualified and experienced
to service all your water treatment and effluent treatment
equipment.
Can Industrial Water Equipment change my resin
in my demin
Yes, Industrial Water Equipment can change any resins
and replace them with the existing type or offer alternatives
which can save money and increase effiency.
We also offer a resin cleaning program which can sometimes
prevent the capitol outlay of replacing resin.
Will Industrial Water Equipment guarantee the quality
of the treated water if I purchase a new demineraliser?
Yes, unlike most of our competitors who will only advise
on expected treated water quality, Industrial Water equipment
will give you a guaranteed value that the new equipment
will achieve. We will give you the water quality at the
point of quotation.
How do I get spares for my demineralisation unit.
As with all Industrial Water Equipments plant it is manufactured
in Ireland or the Uk using quality parts only sourced
in Ireland and Uk giving our customers the advantage of
buying spares direct from us or direct from well known
suppliers such as RS or grunfos etc. |
Testomat Eco water hardness monitor. 
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