Show simple item record

dc.contributor.advisorChanakya, H N
dc.contributor.authorMurthy, Priyanka
dc.date.accessioned2020-10-15T07:09:52Z
dc.date.available2020-10-15T07:09:52Z
dc.date.submitted2013
dc.identifier.urihttps://etd.iisc.ac.in/handle/2005/4622
dc.description.abstractThe increasing levels of generation of nutrient rich wastewaters around the world pose serious challenges where conventional biological and chemical methods of treatment have gradually begun to fail in meeting sustainability challenges and underlying criteria. In this study naturally occurring mixed algal species reared in mixotrophic growth modes have been deployed to remove recalcitrant organics and recover high nutrient concentrations (N and P) from three increasingly complex wastewaters at short residence times of 6-7 days. Results from pilot scale operation show that the cultivation methods adopted and the use of naturally selected species lead to a tendency among these species to clump at certain stages of growth that in turn float or settle rapidly making algal harvest and thereby the nutrient recovery processes energy efficient. Biomass productivity of the consortia varied with season and was highest in the liquid from anaerobic digestor with a maximum of 6.3 g/m2/d. N recovery from synthetic sewage was c.30% and anaerobic digestor effluent c.50%, solid waste leachate c.42% while the N removal reached 95%. P recovery ranged between 50-70%, and the removal achieved was 90%. The use of mixed algal consortia in mixotrophic mode greatly enhanced the simultaneous removal of organic matter and recovery of mineral nutrients and is therefore suggested as a strategy for sustainable wastewater treatment units of the future.en_US
dc.language.isoen_USen_US
dc.relation.ispartofseriesG25571;
dc.rightsI grant Indian Institute of Science the right to archive and to make available my thesis or dissertation in whole or in part in all forms of media, now hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertationen_US
dc.subjectAnaerobic Digestoren_US
dc.subjectSolid Waste Leachateen_US
dc.subjectMixed Algal Consortiaen_US
dc.subjectWastewateren_US
dc.subjectWastewater Treatmenten_US
dc.subjectAnaerobic Digestor Effluenten_US
dc.subject.classificationEnvironmental Engineeringen_US
dc.titleSustainable and Energy Efficient Treatment Potential of Mixed Algal Consortia for High Nutrient Organic Wastewatersen_US
dc.typeThesisen_US
dc.degree.nameMTech (Res)en_US
dc.degree.levelMastersen_US
dc.degree.grantorIndian Institute of Scienceen_US
dc.degree.disciplineEngineeringen_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record