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SIDE-BY-SIDE-BY-SIDE PILOT TESTING OF HIGH-SOLIDS DEWATERING EQUIPMENT AT THE DES MOINES WASTEWATER RECLAMATION FACILITY

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Abstract:

Black & Veatch assisted the Des Moines Wastewater Reclamation Authority (WRA) with pilot testing of high-solids belt filter presses and centrifuges at the City's regional Wastewater Reclamation Facility (WRF). The primary purpose of the investigation was to determine if modern, high-solids dewatering equipment could reduce the costs of dewatering and biosolids disposal. Over one week of testing in July 2000, two trailermounted, high-solids (14 and 15 roll) belt filter presses (BFP) were tested and compared against the City's belt filter presses. In August 2000, two high-solids centrifuges were simultaneously tested and also compared against the City's presses. Both technologies showed a significant potential for savings in operating cost, as a result of higher dewatered cake solids concentrations, higher throughput, and lower polymer use. Operating cost savings of 22 to 29 percent were projected.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864701790902103

Publication date: January 1, 2001

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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 These proceedings are not peer reviewed.

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