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 (Unpublished)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| Status: | Unpublished |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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