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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4707
Title: Maintenance of EBPR in an aerobic baffled reactor under varying total phosphorus concentration using dried powdered sludge and molasses
Authors: Yadav D.
Anand R.S.
Singh R.P.
Pruthi V.
Kumar P.
Published in: Journal of Water Process Engineering
Abstract: This study examined the performance of EBPR in a baffled reactor operating under fully aerobic conditions using dried powdered sludge and molasses. Total phosphorus (TP) concentration in the used synthetic feed was varied between 1.4–40 mg/L. Experimental results showed that the baffled reactor removed 0.45 ± 0.02–16.9 ± 0.1 mg of TP per g of suspended solids during steady-state operation, and the biomass TP content varied between 1.1 ± 0.02%–22.3 ± 0.1%, suggesting that aerobic EBPR can be achieved using dried powdered sludge and molasses. Biomass TP content correlated with TP release levels. TP uptake took place in the presence of molasses. COD and NH4+-N removal efficiencies were not affected much by different TP concentrations. TP was primarily stored in the form of intracellular storage of polyphosphate (poly-P). The possible reasons for TP removal were investigated and it was found that the main reason for TP removal in this study was the release of extracellular enzymes by microorganisms due to the addition of dried powdered sludge. Tracer studies results showed that dead space in the reactor ranged from 12.8 to 19.3%. The pattern of flow in the reactor was neither entirely plug flow nor entirely mixed. © 2017 Elsevier Ltd
Citation: Journal of Water Process Engineering(2017), 17(): 70-81
URI: https://doi.org/10.1016/j.jwpe.2017.03.008
http://repository.iitr.ac.in/handle/123456789/4707
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Aerobic baffled reactor
Dried powdered sludge
EBPR
Extracellular enzymes
Hydrodynamics
ISSN: 22147144
Author Scopus IDs: 57052321700
57193762533
55789505588
18837702800
57206834879
Author Affiliations: Yadav, D., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Anand, R.S., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Singh, R.P., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Pruthi, V., Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Kumar, P., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, 247667, India
Corresponding Author: Yadav, D.; Department of Civil Engineering, Indian Institute of Technology RoorkeeIndia; email: dharmender.iitr11@gmail.com
Appears in Collections:Journal Publications [CE]

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