Publication

Comparison of chute aerator effect on stepped and smooth spillways

Related publications (15)

Assessment of personal exposure to particle and gaseous air pollutants in residences and offices

Poor indoor air quality has been associated with health issues and decreased work performance. Personal exposure that takes place both in outdoor and indoor environments is the result of dy-namic processes and complex interactions between people and surrou ...

EPFL2023

Performance and Design of a Stepped Spillway Aerator

Anton Schleiss, Michael Pfister, Stéphane Christian Olivier Terrier

Stepped spillways are frequently limited to specific discharges under around 30 m2/s due to concerns about potential cavitation damages. A small air concentration can prevent such damages and the design of bottom aerators is well established for smooth chu ...

2022

Multi-objective optimization in waste plastics - recycling vs thermo-valorization

François Maréchal, Ivan Daniel Kantor, Rafael Amorim Leandro De Castro Amoedo

In the past few years, waste management has received increasing attention not only from industry but also from academics. With an increase in plastic content, motivated by China’s ban on its import, waste composition is expected to change in the near futur ...

Osaka, Japan, ECOS 2020 Local Organizing Committee2020

Assessment of the effects of wastewater treatment plant effluents on receiving streams using oligochaete communities of the porous matrix

Régis Lionel Vivien

Human activities can disturb the natural dynamics of exchanges between surface water and groundwater in rivers. Such exchanges contribute to the self-purification of the environment and an excess of infiltration can lead to contamination of groundwater. In ...

2019

Alternative Methods for Assessing Air Quality and Energy Strategies for Developing Countries: A Case Study on Cuba

Jessie Madrazo Bacallao

The worldwide increasing energy consumption is mainly based on fossil fuel which leads to a large number of environmental problems. Indeed, the combustion of fossil fuels releases into the atmosphere different greenhouse gases and harmful pollutants which ...

EPFL2018

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

Hydraulic performance of stepped spillway aerators and related downstream flow features

Stéphane Christian Olivier Terrier

To protect spillways against cavitation damage, adding a small air concentration to the flow close to the invert is efficient. Aerator performance on smooth chutes was therefore well studied in terms of air entrainment and downstream air concentration deve ...

EPFL2016

Effect of deflector aerator on stepped spillway flow

Anton Schleiss, Michael Pfister, Stéphane Christian Olivier Terrier

Systematic physical model tests are performed on a stepped spillway equipped with a bottom aerator at the beginning of the stepped part. A deflector is used to issue a jet in order to initiate air entrainment into the flow. A horizontal slot located in the ...

2016

Optimal Search Strategies for Pollutant Source Localization

Auke Ijspeert, Howard Li

This paper is aimed at developing optimal motion planning for a single autonomous surface vehicle (ASV) equipped with an on-board pollutant sensor that will maximize the sensor-related information available for source seeking. The ASV uses a nonlinear diff ...

Ieee2016

Sulfamethoxazole and isoproturon degradation and detoxification by a laccase-mediator system: Influence of treatment conditions and mechanistic aspects

David Andrew Barry, Urs von Gunten, Christof Holliger, Jonas Margot, Pierre-Jean Copin

The potential of laccase-mediator systems (LMS) for the removal and detoxification of two wastewater micropollutants, the antibiotic sulfamethoxazole (SMX) and the herbicide isoproturon (IPN), was assessed. The influence of various parameters on micropollu ...

Elsevier2015