Annual meeting: 2018
Fields-Topics: P5 Products and Technology
Type of talk: Fellows Speed Presentation
I graduated from the National School for Water and Environmental Engineering (Strasbourg, France) in 2005. I obtained my PhD degree in Fluid Mechanics in 2009 at the University of Strasbourg under the guidance of Robert Mosé. My PhD work focused on the understanding of multiphase flow in vertical flow sand filters for wastewater treatment and how it influences oxygen transfer. Another innovative approach that I developed during my PhD was the usage of electrical resistivity tomography for the monitoring of constructed wetlands. This was done at the Norwegian University of Life Sciences under the guidance of Helen French. Since 2009, I am serving as research engineer at Irstea. Thanks to a large number of fieldwork and exchange with practitioners and stakeholders through the EPNAC network, I have gained expertise on constructed wetlands. I have also developed innovative and monitoring technologies and advanced modeling tools describing multiphase flow and clogging in constructed wetlands. My aim is to gain better understanding of engineered ecological systems to support their development and sustainability. Transfer of this knowledge is also at the core of my approach.
Constructed wetlands are the leading technology for small communities’ wastewater treatment in France. Because the regulation is becoming more stringent, the technology needs improvements. An essential step is to gain more understanding on the root/biofilm interaction and how it influences key reactions like denitrification. The center for Biofilm Engineering is developing an innovative microscale experiment to investigate it using hollow fiber membrane and microsensors. My work aims at developing and implementing an existing numerical model to assist experimental results interpretation. This mechanistic model describes the bi-directional substrate fluxes across biofilm and microbial reactions within. Expected outcomes are the development of a biofilm-based model more adequate to describe constructed wetlands complex microbial mechanisms. On the long term, simplified models will be derived to be used by designers to accelerate innovation.
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