Two strategies for improving animal farm wastewater treatment in reed beds

Files in This Item:
File Description SizeFormat 
17-Environ Technol.pdf262.88 kBAdobe PDFDownload
Title: Two strategies for improving animal farm wastewater treatment in reed beds
Authors: Babatunde, A.O.
Zhao, Y.Q.
Permanent link:
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 sludgeAnimal farm wastewaterConstructed wetlandsPhosphorusReed bedsTidal flow
Subject LCSH: Water treatment plant residuals
Agricultural wastes
Constructed wetlands
DOI: 10.1080/09593331003720623
Other versions:
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

Show full item record

Citations 50

Last Week
Last month
checked on Feb 18, 2019

Page view(s) 20

checked on May 25, 2018

Download(s) 5

checked on May 25, 2018

Google ScholarTM



This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.