Paint maker opts for demineralisation plant

To meet demand for bacteria-free, deionised water at its Biggleswade HQ, paint manufacturer Pro-Spray Automotive Finishes has adopted ELGA Process Water's proposal for an onsite demineralisation plant that produces water when needed.

ELGA suggested that Pro- Spray produce the required deionised water on demand using reverse osmosis and ion exchange technologies and expained that this would be more cost effective than buying IBCs in bulk and would guarantee consistency.

Mains water is delivered into a break tank and then pumped to a MiniRO reverse osmosis plant that removes 95% of dissolved solids and 99% of organic contaminants and bacteria. Permeate from the MiniRO is collected in a tank and pumped through a UV disinfection unit, a cartridge filter and a service deionisation cylinder to give deionised water of better than 0.5µS/cm conductivity.

This is delivered to the manufacturing line via a ring main. Integrated meters give continuous verification for QC and audit purposes.

The solution is said to save about 25p/L of water compared with the cost of buying IBCs.