Challenge: An urban seawater grid that serviced commercial buildings, government facilities, residential buildings, hospitals, and re water systems had been undergoing severe fouling. The grid drew from a single seawater pump house that served numerous commercial and residential high-rise complexes. Mexel was brought in as a possible solution to the fouling and during Mexel’s decade plus of treatment the intake tunnels have remained clean, while also removing old barnacles in the process. Hong Kong District Heating and Cooling

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