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Article: Characterization of soluble microbial products as precursors of disinfection byproducts in drinking water supply

TitleCharacterization of soluble microbial products as precursors of disinfection byproducts in drinking water supply
Authors
Issue Date2014
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv
Citation
Science of the Total Environment, 2014, v. 472, p. 818-824 How to Cite?
AbstractWater pollution by wastewater discharge can cause the problem of disinfection byproducts (DBPs) in drinking water supply. In this study, DBP formation characteristics of soluble microbial products (SMPs) as the main products of wastewater organic biodegradation were investigated. The results show that SMPs can act as DBP precursors in simulated wastewater biodegradation process. Under the experimental conditions, stabilized SMPs had DBPFP (DBP formation potential) yield of around 5.6 mumol mmol(-1)-DOC (dissolved organic carbon) and DBP speciation profile different from that of the conventional precursor, natural organic matter (NOM). SMPs contained polysaccharides, proteins, and humic-like substances, and the latter two groups can act as reactive DBP precursors. SMP fraction with molecular weight of <1 kDa accounted for 85% of the organic carbon and 65% of the DBP formation. As small SMP molecules are more difficult to remove by conventional water treatment processes, more efforts are needed to control wastewater-derived DBP problem in water resource management.
Persistent Identifierhttp://hdl.handle.net/10722/202676
ISSN
2015 Impact Factor: 3.976
2015 SCImago Journal Rankings: 1.702

 

DC FieldValueLanguage
dc.contributor.authorLiu, JLen_US
dc.contributor.authorLi, XYen_US
dc.contributor.authorXie, YFen_US
dc.contributor.authorTang, Hen_US
dc.date.accessioned2014-09-19T09:14:15Z-
dc.date.available2014-09-19T09:14:15Z-
dc.date.issued2014en_US
dc.identifier.citationScience of the Total Environment, 2014, v. 472, p. 818-824en_US
dc.identifier.issn0048-9697-
dc.identifier.urihttp://hdl.handle.net/10722/202676-
dc.description.abstractWater pollution by wastewater discharge can cause the problem of disinfection byproducts (DBPs) in drinking water supply. In this study, DBP formation characteristics of soluble microbial products (SMPs) as the main products of wastewater organic biodegradation were investigated. The results show that SMPs can act as DBP precursors in simulated wastewater biodegradation process. Under the experimental conditions, stabilized SMPs had DBPFP (DBP formation potential) yield of around 5.6 mumol mmol(-1)-DOC (dissolved organic carbon) and DBP speciation profile different from that of the conventional precursor, natural organic matter (NOM). SMPs contained polysaccharides, proteins, and humic-like substances, and the latter two groups can act as reactive DBP precursors. SMP fraction with molecular weight of <1 kDa accounted for 85% of the organic carbon and 65% of the DBP formation. As small SMP molecules are more difficult to remove by conventional water treatment processes, more efforts are needed to control wastewater-derived DBP problem in water resource management.-
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/scitotenv-
dc.relation.ispartofScience of the Total Environmenten_US
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Science of the Total Environment. 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 Science of the Total Environment, 2014, v. 472, p. 818-824. DOI: 10.1016/j.scitotenv.2013.11.139-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subject.meshDisinfectants - analysis-
dc.subject.meshDrinking Water - chemistry - microbiology-
dc.subject.meshWater Pollutants, Chemical - analysis-
dc.subject.meshWater Purification - methods-
dc.titleCharacterization of soluble microbial products as precursors of disinfection byproducts in drinking water supplyen_US
dc.typeArticleen_US
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_US
dc.identifier.authorityLi, XY=rp00222en_US
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.scitotenv.2013.11.139-
dc.identifier.pmid24342087-
dc.identifier.hkuros236398en_US
dc.identifier.volume472en_US
dc.identifier.spage818en_US
dc.identifier.epage824en_US
dc.publisher.placeNetherlands-

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