Two strategies for improving animal farm wastewater treatment in reed beds
|Title:||Two strategies for improving animal farm wastewater treatment in reed beds||Authors:||Babatunde, A.O.
|Permanent link:||http://hdl.handle.net/10197/3122||Date:||Sep-2010||Online since:||2011-08-29T10:14:21Z||Abstract:||In this study, dewatered alum sludge cakes were used as substrate in a laboratory scale tidal vertical flow reed bed system treating animal farm wastewater. The “tidal flow” operation was employed to enhance oxygen transfer into the reed bed system, while dewatered alum sludge cake was used to enhance phosphorus (P) removal in the system through ligand exchange. Except for the removal of P which was consistently high throughout the experiment, the removal of organics (BOD5, COD) exhibited a trend of gradual and increasing removal. This highlights the obvious advantage of the use of the dewatered alum sludge cake in the reed bed. For the removal of organics, a mean removal percentage of 82.3 ± 3.5 % was obtained for BOD5 at an average loading of 84.6 g/m2.d. In addition, the first-order kinetics constant for BOD5 removal (KBOD, m/d) obtained in the system was about 9 times the rate constant commonly obtained in conventional horizontal flow systems. The mean level of dissolved aluminium (Al) monitored in the effluent was 0.04 ± 0.01 mg/l and this is well below the discharge limit of 0.2 mg/l for Al discharge into all waters.||Funding Details:||Other funder||Type of material:||Journal Article||Publisher:||Taylor & Francis||Journal:||Environmental Technology||Volume:||31||Issue:||12||Start page:||1343||End page:||1348||Copyright (published version):||2010 Taylor & Francis||Keywords:||Alum sludge; Animal farm wastewater; Constructed wetlands; Phosphorus; Reed beds; Tidal flow||Subject LCSH:||Water treatment plant residuals
|DOI:||10.1080/09593331003720623||Other versions:||http://dx.doi.org/10.1080/09593331003720623||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Centre for Water Resources Research Collection|
Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection
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