Effect of enzyme secreting bacterial pretreatment on enhancement of aerobic digestion potential of waste activated sludge interceded through EDTA

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dc.contributor.authorKavitha, S.
dc.contributor.authorAdish Kumar, S.
dc.contributor.authorYogalakshmi, K.N.
dc.contributor.authorKaliappan, S.
dc.contributor.authorRajesh Banu, J.
dc.date.accessioned2017-07-25T10:37:05Z
dc.date.accessioned2024-08-14T06:40:21Z
dc.date.available2017-07-25T10:37:05Z
dc.date.available2024-08-14T06:40:21Z
dc.date.issued2013
dc.description.abstractIn this study, the effect of Ethylene diamine tetra acetic acid (EDTA) on Extracellular polymeric substance (EPS) removal tailed with bacterial enzymatic pretreatment on aerobic digestion of activated sludge was studied. In order to enhance the accessibility of sludge to the enzyme secreting bacteria; the extracellular polymeric substances were removed using EDTA. EDTA efficiently removed the EPS with limited cell lysis and enhanced the sludge enzyme activity at its lower concentration of 0.2. g/g SS. The sludge was then subjected to bacterial pretreatment to enhance the aerobic digestion. In aerobic digestion the best results in terms of Suspended solids (SS) reduction (48.5%) and COD (Chemical oxygen demand) solubilization (47.3%) was obtained in experimental reactor than in control. These results imply that aerobic digestion can be enhanced efficiently through bacterial pretreatment of EPS removed sludge. ? 2013 Elsevier Ltd.en_US
dc.identifier.citationKavitha, S., Adish Kumar, S., Yogalakshmi, K. N., Kaliappan, S., & Rajesh Banu, J. (2013). Effect of enzyme secreting bacterial pretreatment on enhancement of aerobic digestion potential of waste activated sludge interceded through EDTA. Bioresource Technology, 150, 210-219. doi: 10.1016/j.biortech.2013.10.021en_US
dc.identifier.doi10.1016/j.biortech.2013.10.021
dc.identifier.issn9608524
dc.identifier.issn0960-8524
dc.identifier.urihttp://10.2.3.109/handle/32116/205
dc.identifier.urlhttps://www.sciencedirect.com/science/article/pii/S0960852413016015?via%3Dihub
dc.language.isoen_USen_US
dc.publisherElsevier Ltden_US
dc.subjectChemical oxygen demanden_US
dc.subjectEnzyme activityen_US
dc.subjectEthylenediaminetetraacetic aciden_US
dc.subjectExperimental reactorsen_US
dc.subjectPolymersen_US
dc.subjectActivated sludgeen_US
dc.subjectAerobic digestionsen_US
dc.subjectEnzymatic pretreatmenten_US
dc.subjectExtra-cellular polymeric substancesen_US
dc.subjectPre-Treatmenten_US
dc.subjectResponse surface methodologyen_US
dc.subjectSuspended solidsen_US
dc.subjectWaste activated sludgesen_US
dc.subjectSludge digestionen_US
dc.subjectedetic aciden_US
dc.subjectacetic aciden_US
dc.subjectactivated sludgeen_US
dc.subjectbacteriumen_US
dc.subjectchemical oxygen demanden_US
dc.subjectEDTAen_US
dc.subjectenzyme activityen_US
dc.subjectoxic conditionsen_US
dc.subjectpollutant removalen_US
dc.subjectpolymeren_US
dc.subjectsolubilizationen_US
dc.subjectactivated sludgeen_US
dc.subjectaerobicen_US
dc.titleEffect of enzyme secreting bacterial pretreatment on enhancement of aerobic digestion potential of waste activated sludge interceded through EDTAen_US
dc.title.journalBioresource Technologyen_US
dc.typeArticleen_US

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