Journal ArticleDOI
Effect of bubble size and frequency on mass transfer in flat sheet MBR
TLDR
In this article, the authors measured the transient mass transfer coefficient and average mass transfer coefficients for a rectangular channel with and without air sparging and found that the dependency of mass transfer on bubble size and frequency has two regions, an increasing region and a plateau region.About:
This article is published in Journal of Membrane Science.The article was published on 2009-04-15. It has received 77 citations till now. The article focuses on the topics: Bubble & Mass transfer coefficient.read more
Citations
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Journal ArticleDOI
Organic fouling of forward osmosis membranes: Fouling reversibility and cleaning without chemical reagents
Baoxia Mi,Menachem Elimelech +1 more
TL;DR: In this article, the authors used alginate as a model organic foulant to examine forward osmosis (FO) membrane fouling and cleaning behavior with the ultimate goal of determining the underlying FO fouling/cleaning mechanisms.
Journal ArticleDOI
Membrane fouling in membrane bioreactors—Characterisation, contradictions, cause and cures
TL;DR: In this article, a review of membrane fouling in membrane bioreactors is presented, with a focus on recent discoveries and emerging innovative fouling mitigation strategies that might lead to more economical and robust MBR operation.
Journal ArticleDOI
Correlating microbial community structure and composition with aeration intensity in submerged membrane bioreactors by 454 high-throughput pyrosequencing.
TL;DR: It was found that Nitrospira and Nitrosomonas were the dominant phylogenetic groups at the genus level of both reactors, and that the high ratio of NOB to AOB populations well supported the complete ammonium oxidation performance in the two reactors.
Journal ArticleDOI
Organic fouling inhibition on electrically conducting carbon nanotube–polyvinyl alcohol composite ultrafiltration membranes
TL;DR: In this paper, the effects of applied potentials on fouling of high concentrations (3 − 5 g/L) of alginic acid (AA) were studied in an electrofiltration cell.
Journal ArticleDOI
Two-phase flow in membrane processes: A technology with a future
TL;DR: A comprehensive and critical literature review of the state of the art in this research area is provided in this paper, where the authors identify key factors in the application of two-phase flows in aqueous separation and purification processes.
References
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Journal ArticleDOI
The use of gas bubbling to enhance membrane processes
TL;DR: The use of gas bubbles and slugs in microfiltration and ultra-filtration with flow inside tubes and fibres, across flat sheets and outside fibres is discussed in this article.
Journal ArticleDOI
Membrane separation bioreactors for wastewater treatment
TL;DR: In this article, the authors present a review of the how and why of membrane technologies development and applications and compare them on the basis of their relative merits and demerits, and provide some facts and figures, including process parameters and effluent quality.
Journal ArticleDOI
Air sparging in ultrafiltration hollow fibers: relationship between flux enhancement, cake characteristics and hydrodynamic parameters
TL;DR: In this paper, gas sparging in ultra-filtration hollow fibers to prevent a particulate deposit was investigated and it was shown that air-sparging is more interesting for waters having a high fouling ability (low critical flux).
Journal ArticleDOI
An experimental study of the wake of gas slugs rising in liquids
TL;DR: In this paper, a photographic study of the wakes of slugs rising in tubes of 19 mm and 52 mm internal diameter is presented, where the dependence of the flow pattern in the wake upon the Reynolds number of the rising slug, R, is established for different slug lengths.
Journal ArticleDOI
In situ manipulation of critical flux in a submerged membrane bioreactor using variable aeration rates, and effects of membrane history
TL;DR: The aim of this work was to explore the feasibility of designing smaller membrane plants by using the aeration rate to manipulate critical flux in situ, and thereby allow variable throughput.
Related Papers (5)
The use of gas bubbling to enhance membrane processes
Fouling in membrane bioreactors used in wastewater treatment
Engineering design approaches for minimum fouling in submerged MBR
A. Sofia,W.J. Ng,Say Leong Ong +2 more