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Optimization of Kuwahee WWTP Aeration Process Upgrades - A Case Study for Energy Efficiency

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The Kuwahee wastewater treatment plant (WWTP) comprehensive facility plan update included major recommendations to integrate sustainable components, with the goal of lowering energy consumption and life-cycle costs to offset rising energy costs and improve treatment operations. One of the primary recommendations was to replace the large multistage centrifugal blowers that supply air for several treatment processes because the blowers accounted for more than 40 percent of the total electrical demand at the facility, had poor efficiency and limited flexibility over the required operating range, and required significant maintenance due to their increasing age. An alternatives analysis was conducted for blower equipment replacement. Recommendations provided in the plan were to install turbo, air-bearing blowers which are anticipated to result in significant process energy costs when combined with other nitrification process upgrades.

Keywords: aeration; air-bearing blowers; energy efficiency

Document Type: Research Article


Publication date: January 1, 2009

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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