Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/11044
DC FieldValueLanguage
dc.contributorDepartment of Civil and Environmental Engineering-
dc.creatorTsang, YF-
dc.creatorSin, SN-
dc.creatorChua, H-
dc.date.accessioned2015-06-23T09:06:43Z-
dc.date.available2015-06-23T09:06:43Z-
dc.identifier.issn0960-8524-
dc.identifier.urihttp://hdl.handle.net/10397/11044-
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.subjectFilamentous bacteriaen_US
dc.subjectFoaming controlen_US
dc.subjectLong-chain fatty acidsen_US
dc.subjectWastewater treatmenten_US
dc.titleNocardia foaming control in activated sludge process treating domestic wastewateren_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.spage3381-
dc.identifier.epage3388-
dc.identifier.volume99-
dc.identifier.issue9-
dc.identifier.doi10.1016/j.biortech.2007.08.012-
dcterms.abstractIn this study, filamentous bacteria (Nocardia amarae) were identified as the major causal microorganism in foaming sludge. The results of growth kinetics study indicated that N. amarae had a relatively strong affinity for non-readily biodegradable fatty acids. N. amarae was able to consume various fatty acids at a constant growth yield from 0.413 to 0.487 g/gCOD. Under common F/M ratio (less than 0.5 gBOD/gMLSS/d) used in activated sludge processes, specific growth rate of N. amarae was found to be more significant than that of non-filamentous bacteria. Based on this feature, a novel technique feast-fast operation (FFO) was developed for the foaming control. The sludge volume index (SVI) rapidly decreased from 300 to 80 mL/g and further stabilized at about 70 mL/g and the system was free from stable foam, while the BOD removal efficiency was maintained above 95%. This control technology effectively suppressed the overgrowth of filaments and improved the settleability of activated sludge without adverse effects on the treatment performance and the process stability.-
dcterms.bibliographicCitationBioresource technology, 2008, v. 99, no. 9, p. 3381-3388-
dcterms.isPartOfBioresource technology-
dcterms.issued2008-
dc.identifier.isiWOS:000254479300008-
dc.identifier.scopus2-s2.0-43849086666-
dc.identifier.pmid17888655-
dc.identifier.eissn1873-2976-
dc.identifier.rosgroupidr39655-
dc.description.ros2007-2008 > Academic research: refereed > Publication in refereed journal-
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