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  5. Two strategies for improving animal farm wastewater treatment in reed beds
 
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Two strategies for improving animal farm wastewater treatment in reed beds

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Download 17-Environ Technol.pdf262.88 KB
Author(s)
Babatunde, A.O. 
Zhao, Y.Q. 
Uri
http://hdl.handle.net/10197/3122
Date Issued
September 2010
Date Available
29T10:14:21Z August 2011
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.
Sponsorship
Other funder
Other Sponsorship
Environmental Protection Agency
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 wastewate...

  • Constructed wetlands

  • Phosphorus

  • Reed beds

  • Tidal flow

Subject – LCSH
Water treatment plant residuals
Agricultural wastes
Constructed wetlands
Phosphorus
DOI
10.1080/09593331003720623
Web versions
http://dx.doi.org/10.1080/09593331003720623
Language
English
Status of Item
Peer reviewed
ISSN
0959-3330 print
1479-487X online
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-sa/1.0/
Owning collection
Civil Engineering Research Collection
Scopus© citations
6
Acquisition Date
Jan 27, 2023
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