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Demineralised water is often favoured for rinsing
post finishing processes and guarantees a high quality
finish free of stains. It can have other benefits
as well, including ensuring silica free water for
rinse post anodising seal.
Increasing water costs, reduction in discharge consent
levels and in some cases the need to prevent discharge
at all has led many aerospace companies to consider
water recovery within their finishing areas.
First it is necessary
to consider the mass balance of the various contaminants
so that a suitable plant can be adequately sized.
Often there is a need to segregate waste streams that
may be hazardous or difficult to treat if combined.
Ion exchange in
the form of a demineraliser is most often used for
recirculation of the rinse water. Many contaminants
present in the rinse water are fouling to an ion exchange
resin and may be difficult to remove through regeneration.
EWS (UK) Ltd demineralisers for water recovery are
designed to accommodate for these compounds, offering
excellent inter-regeneration capacity and the facility
for additional maintenance associated with this type
of application.
Read more...
For more information,
see our products
range.
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