Dairy giant acts to cut water costs

Robert Wiseman Dairies’ plant in Bridgwater, Somerset, has become the first UK dairy to use reverse osmosis to treat wastewater

Robert Wiseman Dairies’ plant in Bridgwater, Somerset, has become the first UK dairy to use reverse osmosis to treat wastewater so that it can be reused on-site.

The £250,000 plant will produce 200,000 litres of water a day, a quarter of the plant’s use. This will be put into the plant’s main tank.

Previously the effluent could only be used to water a neighbouring cricket pitch.

The company has a target to reduce water use by 25% by 2015, higher than the 20% target set in the sector-wide milk roadmap (ENDS Report 400, pp 25-26).

Reverse osmosis is a filtration method used to separate pollutants from water.

A band of food manufacturers, including Kellogg, commissioned plants in the early 2000s to cut effluent and water costs (ENDS Report 353, p 27), but Robert Wiseman is the first dairy to follow their lead.

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