ExCAL Limited were commissioned by Purolite International to undertake remediation of groundwater at their facility in Pontyclun.

The facility was formerly used to manufacture a range of ion exchange resins based either on styrene / divinylbenzene copolymers or polyacrylates.


The styrene / divinylbenzene copolymers were treated to produce cationic or anionic resins by sulphonation or chloromethylation / amination respectively.


ExCAL designed and commissioned a site investigation that enabled a quantitative risk assessment to be undertaken.


The risk assessment identified the need for groundwater extraction and treatment.  ExCAL developed a bespoke water treatment system that utilised ion exchange resins.  This in turn allowed products from the groundwater to be recovered for re – use.  The water was treated to a sufficient standard to allow direct discharge to surface water.

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ExCAL Limited, Capel Hendre Industrial Estate, Ammanford, Carmarthenshire, SA18 3SJ.

Reach us through or call us at 01269 831 606