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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:EESS talk on "The interplay of fluid mixing\, chemical reactions a
 nd microbial processes in topologically complex environments"
DTSTART:20200915T121500
DTEND:20200915T130000
DTSTAMP:20260916T212913Z
UID:f8b7bc7c100136b476be137c0383d4672709c7618c96dc0b7ee6ce08
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Joaquin Jimenez-Martinez\, Leader of Subsurface Environment
 al Processes Group\, Dpt. Water Resources & Drinking Water\, EAWAG\nAbstra
 ct:\nSoil is a porous and topologically complex environment. The flow fiel
 d is a heterogeneous mosaic of high and low velocities\, rheological prope
 rties\, and partially miscible or immiscible phases (e.g.\, air and contam
 inants). Each of these parameters controls chemical mixing and reactions i
 n environments of high structural complexity. The biochemical activities o
 f microbes also play a major role\, both in controlling the local fluid dy
 namics (by clogging and re-routing of flow due to biofilm formation) and t
 he cycling of nutrients\, trace elements\, and contaminants in these envir
 onments. Firstly\, we will consider the consequences of fluid mixing on th
 e kinetics of fluid-fluid and fluid-solid reactions in porous media\, focu
 sing in particular on the impact of an immiscible phase such as air. Secon
 dly\, we will focus on the consequences of porous media geometry and bound
 ary conditions on microbial processes\, including bioclogging\, bacterial 
 chemotaxis\, and soil respiration.\n\nShort biography:\nDr. Joaquin Jimene
 z-Martinez leads the Subsurface Environmental Processes - SEP group (Eawag
  and ETH Zurich). He is Research Scientist at EAWAG (Swiss Federal Institu
 te of Aquatic Science and Technology) and Lecturer at the Department of Ci
 vil and Environmental Engineering-ETH Zurich. \nAfter graduating (BSc) in
  Geological Sciences from University of Granada (Spain)\, and to obtain th
 e Certificate of Advanced Studies in Geotechnical Engineering (MSc) at th
 e Technical University of Catalonia (Barcelona\, Spain) in 2007\, he obtai
 ned a PhD degree in Subsurface Hydrology at the same university in 2010. H
 e strengthened his research formation as Postdoctoral Fellow at the CNRS-U
 niversity of Rennes 1 in France (2010-2012)\, being awarded as titular of 
 the International Chair on Environment and Innovation (Foundation Rennes 1
 ) (2012-2014)\, and as Post-doc Research Associate at Los Alamos National 
 Laboratory\, US (2014-2016). In 2016\, he joined Eawag and ETH Zurich as l
 eader of the Subsurface Environmental Processes group and Lecturer.\nHis S
 EP group focusses on the study of chemical transport and reactions and bio
 logical processes in porous and fractured media\, particularly in multipha
 se systems. The group tackles these problems mainly by experiments perform
 ed over scales ranging from micromodels to field scale\, and blending them
  with theory and modeling.\n\n\n 
LOCATION:ZOOM
STATUS:CONFIRMED
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