Proceedings

Implementation and Challenges of Ice-Pigging: PRESENTATION ONLY

Michael Beresford – Project Manager for Mace but seconded to Affinity Water

(free)

The treatment at three WTWs, Roydon, Blackford and Denge resulted in high concentrations of
manganese in the final water.
• High level of customer contacts in associated supply zones
• DWI Undertaking to improve treatment and remove manganese from the distribution network
to reduce customer contacts
• Over 1000km of Mains to be Cleaned / Removed of Mangenese
• Around 70% of Mains , Aging Cast Iron Pipes
• Included in Affinity Water’s Business Plan
• Ice Pigging Chosen as Affinity Water’s preferred technique for cleaning of Trunk Mains

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