Journal ArticleDOI
Comparison of sludge characteristics and performance of a submerged membrane bioreactor and an activated sludge process at high solids retention time.
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TLDR
The difference in sludge characteristics and performance was especially pronounced as SRT increased, resulting in deterioration of sludge settleability and effluent quality of the ASP (filamentous bacteria, increase of protein and polysaccharide release).About:
This article is published in Water Research.The article was published on 2006-07-01. It has received 335 citations till now. The article focuses on the topics: Activated sludge & Membrane bioreactor.read more
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Journal ArticleDOI
Recent advances in membrane bioreactors (MBRs): membrane fouling and membrane material.
Fangang Meng,Fangang Meng,So-Ryong Chae,Anja Drews,Matthias Kraume,Hang-Sik Shin,Fenglin Yang +6 more
TL;DR: The fouling behaviour, fouling factors and fouling control strategies were discussed, and recent developments in membrane materials including low-cost filters, membrane modification and dynamic membranes were reviewed.
Journal ArticleDOI
A critical review of extracellular polymeric substances (EPSs) in membrane bioreactors: Characteristics, roles in membrane fouling and control strategies
Hongjun Lin,Meijia Zhang,Fangyuan Wang,Fangang Meng,Bao-Qiang Liao,Huachang Hong,Jianrong Chen,Weijue Gao +7 more
TL;DR: The fundamentals of EPSs including definitions, compositions and properties, and factors affecting EPSs production and characteristics are summarized and based on which, EPSs control towards membrane fouling mitigation in MBRs are comprehensively discussed.
Journal ArticleDOI
Treatment of landfill leachate using membrane bioreactors: A review
TL;DR: In this paper, the membrane separation capacity of a membrane bioreactor allows the retention of most microbial cells in the reactor to maintain a high biomass concentration, resulting in an efficient biological digestion system.
Journal ArticleDOI
Sludge properties and their effects on membrane fouling in submerged anaerobic membrane bioreactors (SAnMBRs)
Hongjun Lin,K. Xie,Basuvaraj Mahendran,David M. Bagley,K.T. Leung,Steven N. Liss,Bao-Qiang Liao +6 more
TL;DR: Comparison of sludge properties and cake layer structure from the two submerged anaerobic membrane bioreactors showed that the cake layer formed in the thermophilic SAnMBR contained higher levels of both organic and inorganic foulants, smaller particle sizes, and especially, a denser and more compact sludge cake structure.
Journal ArticleDOI
Effects of sludge retention time on membrane fouling and microbial community structure in a membrane bioreactor
TL;DR: The results of this study indicate that growth of microorganisms belonging to the δ- and ɛ-subclass of Proteobacteria as well as the members of the Cytophaga–Flavobacterium cluster increased at longer SRTs.
References
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Journal Article
Protein Measurement with the Folin Phenol Reagent
TL;DR: Procedures are described for measuring protein in solution or after precipitation with acids or other agents, and for the determination of as little as 0.2 gamma of protein.
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Colorimetric Method for Determination of Sugars and Related Substances
TL;DR: In this article, a method was developed to determine submicro amounts of sugars and related substances using a phenol-sulfuric acid reaction, which is useful for the determination of the composition of polysaccharides and their methyl derivatives.
Journal ArticleDOI
Extraction of extracellular polymers from activated sludge using a cation exchange resin
TL;DR: In this article, the extraction of water soluble extracellular polymeric substances (EPS) from activated sludge was investigated, which consisted mainly of protein but also humic compounds, carbohydrates, uronic acids and DNA.
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A review of soluble microbial products (smp) in wastewater treatment systems
TL;DR: It is concluded that the knowledge regarding SMP is far from complete and that much work is still required to fully understand their contribution to the treatment process; some of these future research areas are outlined.
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Surface properties of sludge and their role in bioflocculation and settleability
Bao-Qiang Liao,D.G. Allen,Ian G. Droppo,Gary G. Leppard,Gary G. Leppard,Steven N. Liss,Steven N. Liss +6 more
TL;DR: The results indicate that it is the surface properties, hydrophobicity, surface charge and composition of EPS, of sludge, rather than the quantity of EPS that govern bioflocculation, and in contrast, the EPS content is more important in controlling the settleability of sludges.