Sludge population optimisation in biological nutrient removal wastewater treatment systems through on-line process control: a review

Yuan, Zhiguo, Yongzhen, Peng, Ma, Yong, Oehmen, Adrian and Keller, Jurg (2008) Sludge population optimisation in biological nutrient removal wastewater treatment systems through on-line process control: a review. Reviews in Environmental Science and Biotechnology, 7 3: 243-254. doi:10.1007/s11157-008-9134-y


Author Yuan, Zhiguo
Yongzhen, Peng
Ma, Yong
Oehmen, Adrian
Keller, Jurg
Title Sludge population optimisation in biological nutrient removal wastewater treatment systems through on-line process control: a review
Journal name Reviews in Environmental Science and Biotechnology   Check publisher's open access policy
ISSN 1569-1705
Publication date 2008-09
Year available 2008
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1007/s11157-008-9134-y
Volume 7
Issue 3
Start page 243
End page 254
Total pages 12
Place of publication Amsterdam, The Netherlands
Publisher Springer
Collection year 2009
Language eng
Subject C1
1002 Environmental Biotechnology
Abstract On-line process control may cause substantial changes to the microbial community in a biological wastewater treatment system. Recent studies have shown such effects can be exploited in control system design to achieve an optimised microbial community. Excellent progress has been made on the elimination of nitrite-oxidising bacteria (NOB) in biological nitrogen removal wastewater treatment systems using on-line aeration control, enabling nitrogen removal via the nitrite pathway. Control methods for eliminating NOB are now available for both continuous systems and sequencing batch reactors, and have been demonstrated with both domestic and various types of industrial wastewaters. The elimination or reduced growth of glycogen accumulating organisms (GAOs), a competitor of polyphosphate accumulating organisms (PAOs), in enhanced biological phosphorus removal (EBPR) systems via pH and carbon source control has been conceptually demonstrated through the use of enriched cultures. However, these strategies are not yet ready for the control of practical EBPR processes. Sludge population optimisation also involves selecting the most desirable organism or a consortium of organisms to perform a required function. This is particularly important for nitrification, one of the most important and delicate steps in modern wastewater treatment plants. Results from both experimental and simulation studies suggest that reactor operation could have a major impact on the nitrifier community structure, which should be further investigated in future studies.
Keyword Activated sludge
BNR
Control
EBPR
FISH
GAO
Microbial community structure
Nitrifier
Nitrite pathway
Optimisation
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: 2009 Higher Education Research Data Collection
Advanced Water Management Centre Publications
 
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Created: Wed, 25 Mar 2009, 13:55:24 EST by Suzanne Read on behalf of Advanced Water Management Centre