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Sustainable Aeration Blower Design — Saves Money Now!

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Historically, aeration blowers have been treated as just another equipment item at a wastewater treatment facility. With increasing energy costs, and the need of many treatment facilities to remove nutrients sustainably, aeration blowers have become a source of major interest for reducing operating costs, especially since power for aeration air for an activated sludge treatment facility can range from 40 to 75 percent of the total plant power bill. All designers have their own methods for determining the number and size of aeration blowers. Three case studies will illustrate the evolution of a design approach for sizing aeration blowers which incorporates the use of dynamic process modeling to identify diurnal aeration needs over extended time periods. The results of this approach enabled an evaluation of the equipment provided by different blower manufacturers to estimate annual power and maintenance costs, capital, and installation resulting in a side-by-side 20 year net present value comparison.
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Document Type: Research Article

Publication date: 2008-01-01

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