Case Study

Temporary Dechlorination System Helps Keep Stablewood Pipeline Works Compliant

Infrastructure

The Daer-Stablewood trunk main was being returned to service as part of a recommissioning project.

George Leslie Ltd were appointed to return the isolated main to service as part of a recommissioning project.

Manganese and Iron contamination had been identified in water system, meaning superchlorination, flushing and dechlorination would be needed to ensure water passing through the recommissioned main was compliant with regulatory standards.

Challenge

Water in the system needed to be cleaned after chlorination to reduce the environmental impact when discharged to a nearby field. With Scottish Water and Public Health Representatives being directly involved in the project, compliance had never been more important.

Solution

RVT Group provided three EnviroHub® TT10 Treatment Tanks which were automatically dosed with sodium thiosulfate from two EnviroHub® TU02 Dosing Skids. This ensured the previously chlorinated water was no longer contaminated and any chemical interference was reduced to safe levels.