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YOU CAN DEWATER YOUR CAKE AND PUMP IT TOO! CONVEYANCE OPTIONS FOR OCSD PLANT 1

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Abstract:

OCSD is currently upgrading Reclamation Plant 1 to co-thicken primary and waste activated solids using centrifuges. Digested solids will also be dewatered using centrifuges and the two processes will be housed in the same building. A small building footprint, stringent redundancy requirements, and a 200 foot distance between the dewatering and storage facilities requires innovative engineering for the cake conveyance system.

The recommended design is a combination of screw conveyors and progressive cavity pumps. Screw conveyors will collect the dewatered cake and transport it to two progressive cavity pumps, which will convey the cake to existing storage silos. The new OCSD Plant 1 cake conveyance system will be the largest in the country to use PC pumps to pump high solids concentration (30 percent or higher) dewatered cake.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864707787973806

Publication date: January 1, 2007

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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 These proceedings are not peer reviewed.

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