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Measurement of kinetic parameters in a submerged aerobic membrane bioreactor fed on acetate and operated without biomass discharge

Paper ID Volume ID Publish Year Pages File Format Full-Text
4743 241 2008 8 PDF Available
Title
Measurement of kinetic parameters in a submerged aerobic membrane bioreactor fed on acetate and operated without biomass discharge
Abstract

The objective of this work was to study the biological performance of a submerged membrane bioreactor working with complete sludge retention that is susceptible to induce high biomass concentration and consequently low F/M ratio. A synthetic organic influent was used and the biological behavior of the system was studied for three different volumetric organic loads. In spite of continuous increase in the VSS concentration, a steady state in terms of removal efficiency and respiratory activity was achieved. High organic matter removal efficiency and no decline of the membrane performance were observed. Cycles of biomass synthesis and biomass loss by predation, lysis and decay could be considered so that a reduction of the biomass production seemed to be possible while keeping high treatment efficiency. Most of the cells were assumed to stay in a physiological state in which cell division was not favored, and the degraded substrate was essentially used to ensure maintenance requirements and storage products synthesis.

Keywords
Wastewater treatment; Immersed membrane bioreactors; Biokinetics; Bioconversion yield; Oxygen uptake rate; Sludge production
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Measurement of kinetic parameters in a submerged aerobic membrane bioreactor fed on acetate and operated without biomass discharge
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 38, Issue 1, 15 January 2008, Pages 70–77
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us