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Conference Paper: Modelling of sediment oxygen demand and organic flux for a pulsed sediment organic load

TitleModelling of sediment oxygen demand and organic flux for a pulsed sediment organic load
Authors
KeywordsBoundary layer
Pollutant transport
Sediment oxygen demand
Sediment pollution
Water quality modelling
Issue Date2006
PublisherIWA Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwst
Citation
Water Science And Technology, 2006, v. 54 n. 11-12, p. 85-92 How to Cite?
AbstractBiodegradation of organic matter in the sediment affects both the level of dissolved oxygen (DO) in the overlaying water and material flux into the water body. In the present study, a mathematical model was developed to describe the DO dynamics and related organic transformation in the sediment after a pulsed load of rich organic, sediment. The model includes DO diffusion at the sediment-water interface and inside the sediment, diagenetic reactions of particulate organic to soluble organic, substances, biodegradation of soluble organic, and related DO consumption. The model can simulate sediment oxygen demand (SOD) in a dynamic system after a sudden organic load on the sediment and the flux of both biodegradable and non-biodegradable organic can be predicted. In addition, laboratory experiments were conducted using SOD chambers to investigate the SOD dynamics and sediment material fluxes. The sediment of the batch SOD tests was loaded with fish food at various rates for the sudden organic input. Numerical simulations for SOD and organic fluxes compared well with the experimental measurements. The results demonstrate that the model can be used to predict the effect of sediment pollutants on the water quality of surface waters. © IWA Publishing 2006.
Persistent Identifierhttp://hdl.handle.net/10722/152146
ISSN
2015 Impact Factor: 1.064
2015 SCImago Journal Rankings: 0.469
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorWang, YXen_HK
dc.contributor.authorLi, XYen_HK
dc.contributor.authorLee, JHWen_HK
dc.date.accessioned2012-06-26T06:35:35Z-
dc.date.available2012-06-26T06:35:35Z-
dc.date.issued2006en_HK
dc.identifier.citationWater Science And Technology, 2006, v. 54 n. 11-12, p. 85-92en_US
dc.identifier.issn0273-1223en_HK
dc.identifier.urihttp://hdl.handle.net/10722/152146-
dc.description.abstractBiodegradation of organic matter in the sediment affects both the level of dissolved oxygen (DO) in the overlaying water and material flux into the water body. In the present study, a mathematical model was developed to describe the DO dynamics and related organic transformation in the sediment after a pulsed load of rich organic, sediment. The model includes DO diffusion at the sediment-water interface and inside the sediment, diagenetic reactions of particulate organic to soluble organic, substances, biodegradation of soluble organic, and related DO consumption. The model can simulate sediment oxygen demand (SOD) in a dynamic system after a sudden organic load on the sediment and the flux of both biodegradable and non-biodegradable organic can be predicted. In addition, laboratory experiments were conducted using SOD chambers to investigate the SOD dynamics and sediment material fluxes. The sediment of the batch SOD tests was loaded with fish food at various rates for the sudden organic input. Numerical simulations for SOD and organic fluxes compared well with the experimental measurements. The results demonstrate that the model can be used to predict the effect of sediment pollutants on the water quality of surface waters. © IWA Publishing 2006.en_HK
dc.languageengen_US
dc.publisherIWA Publishing. The Journal's web site is located at http://www.iwapublishing.com/template.cfm?name=iwapwsten_HK
dc.relation.ispartofWater Science and Technologyen_HK
dc.subjectBoundary layeren_HK
dc.subjectPollutant transporten_HK
dc.subjectSediment oxygen demanden_HK
dc.subjectSediment pollutionen_HK
dc.subjectWater quality modellingen_HK
dc.subject.meshBiodegradation, Environmentalen_US
dc.subject.meshComputer Simulationen_US
dc.subject.meshGeologic Sediments - Chemistryen_US
dc.subject.meshOxygen - Analysisen_US
dc.subject.meshWater - Analysisen_US
dc.titleModelling of sediment oxygen demand and organic flux for a pulsed sediment organic loaden_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_HK
dc.identifier.emailLee, JHW: hreclhw@hku.hken_HK
dc.identifier.authorityLi, XY=rp00222en_HK
dc.identifier.authorityLee, JHW=rp00061en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.2166/wst.2006.838en_HK
dc.identifier.pmid17302308-
dc.identifier.scopuseid_2-s2.0-33846626931en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846626931&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume54en_HK
dc.identifier.issue11-12en_HK
dc.identifier.spage85en_HK
dc.identifier.epage92en_HK
dc.identifier.isiWOS:000245785900011-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridWang, YX=23494212100en_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK
dc.identifier.scopusauthoridLee, JHW=36078318900en_HK

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