Enhanced removal of organic matter and ammoniacal-nitrogen in a column experiment of tidal flow constructed wetland system

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dc.contributor.author Sun, Guangzhi
dc.contributor.author Zhao, Y.Q.
dc.contributor.author Allen, Stephen
dc.date.accessioned 2011-09-23T14:10:42Z
dc.date.available 2011-09-23T14:10:42Z
dc.date.copyright 2004 Elsevier B.V. en
dc.date.issued 2005-01-26
dc.identifier.citation Journal of Biotechnology en
dc.identifier.issn 0168-1656
dc.identifier.uri http://hdl.handle.net/10197/3172
dc.description.abstract This study investigated the efficiency of a four-stage tidal flow constructed wetland system for the removal of organic matter and ammoniacal-nitrogen from diluted piggery wastewater. The results demonstrated that the operation of tidal flow enhanced the transfer of oxygen into wetland matrices. The overall oxygen consumption rate in the tidal flow system (357 gO2/m2∙d) was considerably higher than the rate obtainable in conventional wetlands. Most oxygen consumption (99%) was due to the decomposition of organic matter. The total supply of oxygen into the wetlands (473 gO2/m2∙d) exceeded the demand for the treatment. The percentage removal of BOD5 and NH4-N was improved by effluent recirculation at a ratio of 1:1. Immobilization by microbial cells and adsorption were found to be the main routes for the removal of ammoniacal-nitrogen. Significant nitrification could not take place under the treatment condition of the experiment. en
dc.description.sponsorship Other funder en
dc.format.extent 205795 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.requires Architecture, Landscape & Civil Engineering Research Collection en
dc.relation.requires Critical Infrastructure Group Research Collection en
dc.relation.requires Urban Institute Ireland Research Collection en
dc.rights This is the author’s version of a work that was accepted for publication in Journal of Biotechnology. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Biotechnology, 115 : 189-197 DOI 10.1016/j.jbiotec.2004.08.009. en
dc.subject Ammonia en
dc.subject Biofilm en
dc.subject BOD5 en
dc.subject Reed bed en
dc.subject Wastewater treatment en
dc.subject.lcsh Ammonia en
dc.subject.lcsh Biofilms en
dc.subject.lcsh Water--Purification--Organic compounds removal en
dc.subject.lcsh Biochemical oxygen demand en
dc.subject.lcsh Constructed wetlands en
dc.title Enhanced removal of organic matter and ammoniacal-nitrogen in a column experiment of tidal flow constructed wetland system en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.internal.webversions http://dx.doi.org/10.1016/j.jbiotec.2004.08.009 en
dc.status Peer reviewed en
dc.identifier.volume 115 en
dc.identifier.issue 2 en
dc.identifier.startpage 189 en
dc.identifier.endpage 197 en
dc.identifier.doi 10.1016/j.jbiotec.2004.08.009
dc.neeo.contributor Sun|Guangzhi|aut| en
dc.neeo.contributor Zhao|Y.Q.|aut| en
dc.neeo.contributor Allen|Stephen|aut| en
dc.description.othersponsorship EPSRC en
dc.description.admin au, SB-06/09/2011 en


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