Due to a more stringent limit on effluent ammonia, from current target of 6 mg/L to future target of 2 mg/L, an upgrade to the existing conventional activated sludge plant was needed to increase nitrification capacity.
United Utilities selected ZeeLung MABR (Membrane Aerated Biofilm Reactor) with zeeDENSE technology to intensify the biological and hydraulic capacity of the plant.
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