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Towards Management of the Bacterial Resource for Nutrient Removal in Granular Sludge Biofilm Systems

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Functional and structural characterization of polyphosphate-accumulating organisms in aerobic granular biofilms

Arnaud Michel Gelb

The "Aerobic Granular Sludge" (AGS) technology for wastewater treatment is basedon dense microbial biofilm in the form of granular aggregates that have an excellentsettling property allowing high biomass concentrations in bioreactors. This promisingbiologi ...

EPFL2023

Co-culture of microalgae and bacteria for wastewater treatment

Thierry Mounir

To address the problem of insucient wastewater treatment and eutrophication of lakes and rivers, the symbiotic association of microalgae and bacteria has shown great potential and numerous advantages. First, co-cultures can exhibit ecient treatment of dome ...

2020

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Aerobic granular sludge (AGS) is an emerging technology offering an alternative wastewater treatment with a reduced footprint compared to conventional activated sludge systems. Basic understanding of AGS processes has mainly been obtained in laboratory-sca ...

2019

Imaging the aerobic granular sludge microbial community using light-sheet fluorescence micros

Christof Holliger, Julien Maillard, Arnaud Michel Gelb, Karen Gemayel

One of the aims of wastewater treatment is the removal of phosphorus before the water is discharged into the environment. Since phosphorus concentrations in wastewater exceed the requirement of bacterial growth, biological phosphorus removal is based on th ...

2019

The effect of different organic substrates on the microbial communities of aerobic granular wastewater treatment sludge

Aline Sondra Adler

Aerobic granular sludge (AGS) is a promising alternative wastewater treatment to the conven- tional activated sludge system, allowing space and energy savings. This process is particularly suited for biological phosphorus removal, avoiding use of coagulant ...

EPFL2019

Basic understanding of formation of aerobic granular sludge (AGS) has mainly been derived from labscale systems with simple influents containing only highly diffusible volatile fatty acids (VFA) as organic substrate. This study compares start-up of AGS sys ...

2019

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Aerobic granular sludge (AGS) is an emerging technology offering an alternative wastewater treatment with a reduced footprint compared to conventional activated sludge systems. Basic understanding of AGS has mainly been obtained in lab-scale reactors fed w ...

2018

Identification of microorganisms in Aerobic Granular Sludgeactively involved in biological phosphorus removal

Arnaud Michel Gelb

One of the aims of the treatment of domestic and industrial wastewater is the removal of phosphorus prior to discharge into the environment. Since phosphorus concentrations in wastewater exceed the requirement of bacterial growth, biological phosphorus rem ...

2016

Identification of microorganisms in Aerobic Granular Sludgeactively involved in biological phosphorus removal

Arnaud Michel Gelb

2016

The biofilm granulation mechanisms depend on the predominant bacterial populations involved

Christof Holliger, David Gregory Weissbrodt

Introduction Aerobic granular sludge used for intensified biological wastewater treatment is based on fast-settling mobile biofilms with a gel-like consistence, called “granules”, formed from activated sludge flocs (Seviour et al. 2012). Fundamental aspect ...

University of Vienna2014