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Article: Sorption and desorption of antibiotic tetracycline on marine sediments

TitleSorption and desorption of antibiotic tetracycline on marine sediments
Authors
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2010, v. 78 n. 4, p. 430-436 How to Cite?
AbstractTetracycline is commonly used for human therapy and veterinary purposes as well as agricultural feed additives. In this study, batch experiments were carried out to investigate the sorption behaviour of tetracycline on marine sediments. The sediment samples were collected from Victoria Harbour, Hong Kong. Sorption isotherms of tetracycline on marine sediments can be well described by a Freudlich model. The calculated Kf varied from 1.12 to 2.34 L g-1. After H2O2 oxidation for removing the organic carbon from marine sediments, the Kf values were reduced by more than 80%, but the organic carbon normalized sorption constant averaged 213.1 L g-1 for the H2O2-treated sediments, which was higher than 98.3 L g-1 for the raw marine sediments. The calculated hysteresis coefficient H ranged from 0.79 to 0.90 indicating that there is a hysteresis in desorption. The sorption of tetracycline on marine sediments was found to decrease with an increase of pH and salinity. These research findings are of importance to an assessment of the fate and transport of tetracycline and other similar antibiotics in seawater-sediment systems. © 2009 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150515
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong200607176104
Research Grants Council (RGC)HKU7149/06E
University Grants Committee (UGC) of the Hong Kong SAR Government, ChinaAoE/P-04/2004
Funding Information:

This research was supported by Grants 200607176104 of Small Project Funding and the SRT on Sustainable Water from the University of Hong Kong, Grants HKU7149/06E from the Research Grants Council (RGC) and AoE/P-04/2004 from the University Grants Committee (UGC) of the Hong Kong SAR Government, China. The technical assistance of Mr. Keith C.H. Wong is highly appreciated.

References

 

DC FieldValueLanguage
dc.contributor.authorXu, XRen_US
dc.contributor.authorLi, XYen_US
dc.date.accessioned2012-06-26T06:05:21Z-
dc.date.available2012-06-26T06:05:21Z-
dc.date.issued2010en_US
dc.identifier.citationChemosphere, 2010, v. 78 n. 4, p. 430-436en_US
dc.identifier.issn0045-6535en_US
dc.identifier.urihttp://hdl.handle.net/10722/150515-
dc.description.abstractTetracycline is commonly used for human therapy and veterinary purposes as well as agricultural feed additives. In this study, batch experiments were carried out to investigate the sorption behaviour of tetracycline on marine sediments. The sediment samples were collected from Victoria Harbour, Hong Kong. Sorption isotherms of tetracycline on marine sediments can be well described by a Freudlich model. The calculated Kf varied from 1.12 to 2.34 L g-1. After H2O2 oxidation for removing the organic carbon from marine sediments, the Kf values were reduced by more than 80%, but the organic carbon normalized sorption constant averaged 213.1 L g-1 for the H2O2-treated sediments, which was higher than 98.3 L g-1 for the raw marine sediments. The calculated hysteresis coefficient H ranged from 0.79 to 0.90 indicating that there is a hysteresis in desorption. The sorption of tetracycline on marine sediments was found to decrease with an increase of pH and salinity. These research findings are of importance to an assessment of the fate and transport of tetracycline and other similar antibiotics in seawater-sediment systems. © 2009 Elsevier Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphereen_US
dc.relation.ispartofChemosphereen_US
dc.subject.meshAdsorption - Drug Effectsen_US
dc.subject.meshAnti-Bacterial Agents - Chemistry - Metabolismen_US
dc.subject.meshGeologic Sediments - Analysis - Chemistryen_US
dc.subject.meshHong Kongen_US
dc.subject.meshHumansen_US
dc.subject.meshHydrogen Peroxide - Chemistry - Pharmacologyen_US
dc.subject.meshModels, Chemicalen_US
dc.subject.meshOxidation-Reduction - Drug Effectsen_US
dc.subject.meshTemperatureen_US
dc.subject.meshTetracycline - Chemistry - Metabolismen_US
dc.subject.meshVictoriaen_US
dc.titleSorption and desorption of antibiotic tetracycline on marine sedimentsen_US
dc.typeArticleen_US
dc.identifier.emailLi, XY:xlia@hkucc.hku.hken_US
dc.identifier.authorityLi, XY=rp00222en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.chemosphere.2009.10.045en_US
dc.identifier.pmid19913873-
dc.identifier.scopuseid_2-s2.0-75149143356en_US
dc.identifier.hkuros178448-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-75149143356&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume78en_US
dc.identifier.issue4en_US
dc.identifier.spage430en_US
dc.identifier.epage436en_US
dc.identifier.isiWOS:000274105700013-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridXu, XR=7405293882en_US
dc.identifier.scopusauthoridLi, XY=26642887900en_US
dc.identifier.citeulike6191765-

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