Excess Sludge Reduction During Activated Sludge Municipal Wastewater Treatment by Integrating an Anoxic Holding Tank and Post-ultrasound Treatment to Enhance Biomass Maintenance Metabolism

FieldValue
dc.contributor.authorMarin-Hernandez, Juan
dc.date.accessioned2012-06-27T14:25:00Z
dc.date.available2012-06-27T14:25:00Z
dc.date.created2012
dc.date.issued2012
dc.identifier.urihttp://hdl.handle.net/10393/22927
dc.identifier.urihttp://dx.doi.org/10.20381/ruor-5859
dc.description.abstractHT biomass sonicated at ES inputs < 56KJ/gTS decreased floc size by 41% and enhanced its metabolic activity by 50-250% compared to control. ES inputs >118 KJ/gTS caused HT biomass solubilization and irreversible loss of its metabolic activity and reflocculation ability. During continuous activated sludge processing (ASP) of real primary effluent the observed yield (Yobs) decreased by 20% compared to control ASP at SF (stress factor) of 1 (biomass exchanged without USPT). At SF of 0.5, 1 and 1.5 (biomass exchanged with USPT) the Yobs further decreased by 33, 25 and 44% respectively as compared to control. This indicated that combining biomass anoxic exposure with USPT enhanced sludge reduction by increasing microbial maintenance metabolism likely in combination with microbial flora shift in the ASP depending on SF.
dc.language.isoen
dc.publisherUniversité d'Ottawa / University of Ottawa
dc.subjectactivated sludge process
dc.subjectbiomass activity
dc.subjectSOUR
dc.subjectDHA
dc.subjectXTT
dc.subjectdewaterability
dc.subjectWAS
dc.titleExcess Sludge Reduction During Activated Sludge Municipal Wastewater Treatment by Integrating an Anoxic Holding Tank and Post-ultrasound Treatment to Enhance Biomass Maintenance Metabolism
dc.typeThesis
dc.faculty.departmentGénie civil / Civil Engineering
dc.contributor.supervisorKennedy, Kevin
dc.embargo.termsimmediate
dc.degree.namePhD
dc.degree.leveldoctorate
dc.degree.disciplineGénie / Engineering
thesis.degree.namePhD
thesis.degree.levelDoctoral
thesis.degree.disciplineGénie / Engineering
uottawa.departmentGénie civil / Civil Engineering
CollectionThèses, 2011 - // Theses, 2011 -

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