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Stalwart Submersible Mixers Help Montana WWTP Make Big Energy Savings When the small team at Daffy Hills Lane selected their new mixers as part of plant upgrade in 2004, they chose very wisely indeed – and not just because those same mixers are still dutifully working away today. Purchased initially so that a 50-HP surface rotor aerator could be switched off during night-time hours of low BOD loading, the two 5-HP (3.7kW) submersible mixers (manufactured by Landia), have created energy-savings of $18,000 per year, meaning that the payback for the whole mixer installation was just less than four and a half years. “The savings speak for themselves”, said Eric Miller, Superintendent at Chinook’s Wastewater Treatment Plant (WWTP) in the far north of Montana, “but the benefits have been manyfold”.

United statesRiver valleyBlaine countyMatthew finleyEric millerCory foxMontana department of environmental qualityIdaho sugarbeet companyDaffy hills laneWastewater treatment plantMilk river valleyUtah idaho sugarbeet companyTotal suspended solidsBiological oxygen demandTotal nitrogenTotal phosphorus