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Nitrification in sequencing batch reactors with and without glucose addition at 11 °C

Paper ID Volume ID Publish Year Pages File Format Full-Text
4402 224 2008 6 PDF Available
Title
Nitrification in sequencing batch reactors with and without glucose addition at 11 °C
Abstract

Nitrification was investigated in two laboratory-scale sequencing batch reactors (SBRs) at 11 °C, one with glucose addition (G-Reactor) and the other without (N-Reactor). The characteristics of nitrification and the distribution of ammonia oxidizing bacteria (AOB) within activated sludge flocs in the two reactors were examined. A high specific nitrification rate existed in the N-Reactor, while a high volumetric nitrification rate existed in the G-Reactor. The proportion of AOB enriched in the N-Reactor was about three times that in the G-Reactor. The activated sludge flocs in the N-Reactor had a larger floc size and a higher biomass density than in the G-Reactor. AOB were mainly in a form of clusters in the activated sludge flocs in the N-Reactor, but were well dispersed throughout the flocs in the G-Reactor.

Keywords
Ammonia oxidizing bacteria; Fluorescence in situ hybridization; Glucose; Heterotrophs; Nitrification
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Nitrification in sequencing batch reactors with and without glucose addition at 11 °C
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 40, Issue 2, 1 June 2008, Pages 373–378
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
You save - $31
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