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Project Code [2004-CP2-AD]
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Project title
Spent caustic recovery plant
Primary Funding Agency
Environmental Protection Agency
Co-Funding Organisation(s)
n/a
Lead Organisation
Diageo Great Northern Brewery
Lead Applicant
Robbie Linehan
Project Abstract
The Diageo brewery is located in Dundalk town. The brewery currently employs 60 permanent staff and a number of contract staff. The brewery brews Harp Carlsberg Satzenbrau Kaliber McArdles and Smithwicks. The brewery keg Smirnoff Ice Harp Carlsberg Smithwicks and McArdles.The goal of this project was to install a production scale membrane filtration plant for the purposes of recovering spent caustic for reuse in the plant. The recovery plant incorporating nanofiltration membrane technology was successfully installed and is currently operational in the brewery. A dirty caustic solution from the regeneration of a brewing filter aid (PVPP) that was previously put to drain is now recovered in the membrane plant and reused again in PVPP regeneration.A Volume Concentration Factor (VCF) of 10 is being consistently achieved which translates into a caustic recovery rate of 90%.Benefits that have resulted include:i Savings of 30000 litres of fresh caustic per yeari Savings of 129 tonnes of steam per year for heating caustici Savings of 15000 litres of acid for pH balancing in the effluent treatment plant.Annual net savings generated by the membrane filtration plant amount to over 34000 per annum.
Grant Approved
�70,371.00
Research Hub
Cleaner Production - Green Enterprise - Innovation and Demonstration
Initial Projected Completion Date
n/a