Low Flow Design of Package Membrane Bioreactor Systems for Total Nitrogen Removal

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Valued qualities such as portability, small footprint, fast start up, and high effluent quality have made package membrane bioreactor (MBR) systems a preferred technology for decentralized wastewater treatment applications. Although package MBR systems have many advantages for decentralized applications there remains design challenges for applications combining low flow conditions with total nitrogen removal.

This paper reveals the major challenges related to design of package MBR systems for total nitrogen removal during low flow conditions and offers design methods to overcome these challenges. Implementation of these methods can minimize post construction changes to equipment and process configurations which will reduce system downtime and project costs. The King William package MBR system will be used as an example of the successful use of these low flow design methods for a package MBR system required to achieve total nitrogen removal.

Keywords: MBR; Membrane bioreactor; decentralized; jet aeration; low flow; nitrogen removal; package; pre-selection

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864709793954312

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 These proceedings are not peer reviewed.

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