Improving Energy Efficiency and Effluent Quality, and Reducing Operating Costs by Controlling Nitrification and Denitrification through Operational Modifications

Authors: Tamburini, Joseph R.; Schuyler, Ronald G.; Tamburini, Joseph U.; Ho, Edward; Sobeck, Robert

Source: Proceedings of the Water Environment Federation, WEFTEC 2007: Session 91 through Session 100 , pp. 7423-7432(10)

Publisher: Water Environment Federation

Buy & download fulltext article:

Price: $17.50 plus tax (Refund Policy)

Abstract:

Faced with a stringent discharge permit, increasing influent flow and organic loading, and denitrification in their clarifiers, Rockaway Valley Regional Sewerage Authority (RVRSA), adopted a rigorous operations strategy aimed at solving the issues facing the facility while reducing overall operating costs. Strict process control allowed RVRSA's oxidation ditch facility to perform nitrification and denitrification within the ditches, minimizing denitrification in the clarifiers. Each oxidation ditch is currently being operated at 30 percent over its rated capacity. Additionally, allowing denitrification in the oxidation ditches significantly reduces electrical demand and improves oxygen transfer. Using this operational strategy the facility is saving over $230,000 per year in electricity savings. The process control and operation method lends itself well to phosphorus removal as seen their low effluent total phosphorus values averaging 1.5 mg/L. Similar operational strategies have been implemented at other facilities and are applicable to other treatment plant configurations.

Keywords: DENITRIFICATION; OXIDATION DITCH; ON/OFF AERATION; PROCESS CONTROL; BIOLOGICAL PHOSPHORUS REMOVAL

Document Type: Research article

DOI: http://dx.doi.org/10.2175/193864707787168765

Publication date: 2007-10-01

More about this publication?

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 These proceedings are not peer reviewed.

WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
Subscribe to this Title
Membership Information
About WEF Proceedings
WEFTEC Conference Information
ingentaconnect is not responsible for the content or availability of external websites

Improving Energy Efficiency and Effluent Quality, and Reducing Operating Costs by Controlling Nitrification and Denitrification through Operational Modifications

Buy & download fulltext article:

Tools

Key

Text size:

Useful pages