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Biofiltre

Publications associées (80)

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

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

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

Organic substrate diffusibility governs microbial community composition, nutrient removal performance and kinetics of granulation of aerobic granular sludge

Christof Holliger, Eva Reynaert

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

Relationship Between Inactivation and Genome Damage of Human Enteroviruses Upon Treatment by UV254, Free Chlorine, and Ozone

Tamar Kohn, Virginie Bachmann, Suzanne Marie Young, Jason Robert Torrey

Quantitative PCR (qPCR) is a convenient tool for monitoring virus concentrations in water and wastewater treatment trains, though it only informs about virus presence, but not infectivity. This limitation can be overcome if the relationship between infecti ...

2019

Proxies to monitor the inactivation of viruses by ozone in surface water and wastewater effluent

Urs von Gunten, Tamar Kohn, Camille Wolf, Annalisa Pavese

Ozone treatment is an effective barrier against viral pathogens, therefore it is an integral part of many water and wastewater treatment trains. However, the efficacy of ozone treatment remains difficult to monitor, due to the lack of methods to track viru ...

2019

Chapter 7 - Biological pretreatment of lignocellulosic biomass—Current trends and future perspectives

Edgard Gnansounou, Binod Parameswaran

For the production of bioethanol production from lignocellulosic biomass, pretreatment is an important step for breaking the chemical bond present in lignocelluloses. Among the different pretreatment strategies, biological pretreatment is found to be a pro ...

Elsevier2019

Role of microbial cell properties on bacterial pathogen and coliphage removal in biochar-modified stormwater biofilters

Stormwater biofilters are distributed stormwater control measures for managing urban runoff. Recent work has shown that adding biochar to biofilters can reduce stormwater contaminant concentrations, including fecal indicator bacteria (FIB). However, the po ...

2018

Evolution of Microbial Communities and Nutrient Removal Performances of Aerobic Granular Sludge during Change of Substrates

Christof Holliger, Julien Maillard, Aline Sondra Adler, Arnaud Michel Gelb, Valérie Berclaz, Marie Christelle Horisberger

Aerobic granular sludge (AGS) is a promising alternative wastewater treatment to the conventional activated sludge system, allowing substantial space, energy and chemichal products savings. Basic understanding of this processes has mainly been obtained in ...

2018

Evolution of microbial communities in aerobic granular sludge during changes in wastewater composition

Christof Holliger, Julien Maillard, Aline Sondra Adler, Valérie Berclaz, Marie Christelle Horisberger

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

Non-target screening to trace ozonation transformation products in a wastewater treatment train including different post-treatments

Urs von Gunten, Juliane Hollender

Ozonation and subsequent post-treatments are increasingly implemented in wastewater treatment plants (WWTPs) for enhanced micropollutant abatement. While this technology is effective, micro pollutant oxidation leads to the formation of ozonation transforma ...

2018

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