The water softener which supplied process water for sodium silicate manufacture was becoming aged and unreliable for the plant. It was clearly time for a replacement. Plant Manager, Hedley Long, had two concerns: performance and time. Making any change to a critical process unit is a worry for manufacturing. A new softener would need to produce water of the right quality and not adversely affect the product. It would also need to be installed in a four day window over a weekend; any delays would result in loss of production at a huge daily cost.
Veolia Water Technologies’ solution was an Ionsoft Duplex softener which was large enough to meet PQ’s planned expansion. The softeners would work in parallel providing 100% spare capacity for a continuous supply of softened water.
The project was completed quickly and efficiently, according to programme; the Mobile Water Services plant was not required, but its presence was reassuring. The new softener has performed very well and with a more efficient regeneration regime, PQ achieves annual savings of £2,000 in salt consumption.
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