The reservoir contained chlorinated water, necessitating a de-chlorination process before discharge. This trial operation validated the effectiveness of de-chlorination for future Borehole Works during the project's Decommissioning Phase.
ChallengeThe chlorine in the water could have endangered local waterways without a de-chlorination process. It was vital to correct pH of the water before discharge to nearby water surfaces to protect aquatic life, minimize water toxicity, meet regulations, and preserve the ecological equilibrium of adjacent water systems. Stonbury sought RVT's specialised knowledge to implement a reliable, compliant de-chlorination system in addressing these challenges.
SolutionRecognising the significant flow in the reservoir, RVT collaborated closely with the contractor to comprehend and anticipate the contaminants and volume of water flow requiring treatment. With a water flow rate of 250m3/h and the presence of chlorine, RVT proposed a custom water treatment solution.
This tailored approach involved deploying three EnviroHub TT10 Treatment Tanks and two EnviroHub TU02 Chemical Dosing Systems to accurately dose sodium thiosulfate into the water based on flow rates. This method effectively eliminated residual chlorine while maintaining optimal Dissolved Oxygen levels, ensuring compliance with environmental water discharge permit and providing the site team with confidence to focus on the restoration project without unnecessary environmental concerns.
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Client
Stonbury
Location
Bromsgrove, West Midlands