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The effect of aerated rock filter geometry on the rate of nitrogen removal from facultative pond effluents

Hamdan, R. and Mara, D.D. (2009) The effect of aerated rock filter geometry on the rate of nitrogen removal from facultative pond effluents. In: IWA International Conference on Waste Stabilization Ponds, 27−30 April, Belo Horizonte, Brazil. (Unpublished)

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Abstract

Rock Filters are an established technology for polishing waste stabilization pond effluents.However, they rapidly become anoxic and consequently do not remove ammonium-nitrogen.Horizontal-flow aerated rock filters (HFARF), developed to permit nitrification and hence ammonium-N removal, were compared with a novel vertical-flow aerated rock filter (VFARF). There were no differences in the removals of BOD5, TSS and TKN, but the VFARF consistently produced effluents with lower ammonium-N concentrations (<0.3 mg N/L) than the HFARF (0.8−1.5 mg N/L).

Item Type: Conference or Workshop Item (Paper)
Keywords: Aerated rock filters, ammonium nitrogen, facultative ponds, horizontal flow, vertical flow
Academic Units: The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds)
The University of Leeds > Faculty of Engineering (Leeds) > School of Civil Engineering (Leeds) > Inst for Pathogen Control Engineering
Depositing User: Miss Elizabeth Winning
Date Deposited: 21 May 2009 14:54
Last Modified: 08 Feb 2013 16:58
Published Version: http://www.acquacon.com.br/ponds2009/en/download.p...
Status: Unpublished
URI: http://eprints.whiterose.ac.uk/id/eprint/8624

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