Dissolved Oxygen Measurement in Activated Sludge

In today's world, escalating demands are placed on our scarce resources. Optimisation of resource usage through the appropriate application of technology can help meet this demand. Sewerage treatment is no exception, with designers and operators striving to optimise throughput, water quality, power usage, maintenance, and costs. Power costs related to the operation of activated sludge aeration equipment generally runs from 30% to 60% of the total electrical power used by a typical sewerage facility. Dissolved oxygen control in the aeration process can save substantial amounts of power by applying only enough air for the biological process to function efficiently. An important additional benefit of accurate control is improved process efficiency and consistent clarifier operation.

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