This Case Study demonstrates the cost savings and environmental benefits that can be achieved when implementing environmental initiatives to reduce water use. At the Cadbury site in Chirk, process wastewater is treated by reverse osmosis, producing water of sufficient quality for re-use on site for certain applications that are remote from any food product. The benefits include: 32% of mains water recovered for re-use; reduced reliance on town supplied water by 27,750 m3; mains water use reduced by 260 litres/tonne of processed cocoa beans; overall annual savings of over £47,000 in water and trade effluent costs; and potential to increase re-use by an additional 21,500 m3/year, with further savings of around £42,000.
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