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SUMMARY:EESS talk on "Biological and chemical activities in confined flows
 : the role of segregation"
DTSTART:20171114T121500
DTEND:20171114T131500
DTSTAMP:20260427T203651Z
UID:a6a1748e1789e62fa9e9d5f08d57ad8fd2101b7c29e783dfd38bd1ee
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Pietro de Anna\, Assistant tenure track professor\, Institu
 te of Earth Sciences\,   Faculty of Geosciences and Environment\, UNIL\, C
 H\n\nShort biography:\nDr Pietro de Anna obtained a Master degree from the
  University of Florence (Italy) in Statistical Mechanics and a PhD in Geos
 ciences from the University of Rennes 1 (Brittany\, France)\, where he stu
 died mixing and reactions in porous media flows. He was postdoctoral fello
 w at MIT (Boston\, U.S.)\, where he learned and developed microfluidics an
 d microscopy techniques for porous media flows investigation. Since 2015\,
  he is an assistant tenure track professor at the Institute of Earth Scien
 ces (ISTE) of the University of Lausanne (UNIL). his research interest foc
 us in the physics of flow and mixing-driven processes in confined micro-st
 ructures\, like filters or soil\, with particular attention to their coupl
 ing with biological activities.\nAbstract:\nWithin the shallow subsurface\
 , soil\, rock\, fluids\, gases and living organisms are in close interacti
 ons as a result of the coupling between fluid flows\, mixing\, solutes ava
 ilability and microorganisms displacement and adaptation. The common chall
 enge in all these processes is their spatial variability (heterogeneity). 
 The consequent complexity that rises from the coupling of these processes\
 , makes predictions based on rates measured under homogenized\, well-mixed
 \, conditions different by orders of magnitudes from laboratory and field 
 observations.\n\nThe aim of my research is the investigation of non unifor
 m flows through confined micro-structures coupled with the activity of bio
 tic and a-biotic components of the subsurface. This is done with theoretic
 al and numerical modeling combined with experiments with microfluidics dev
 ices and time-lapse video-microscopy. My interdisciplinary research target
 s a theoretical framework for quantitative predictions of micro-scale proc
 esses that are relevant for the larger scale spreading of pathogens\, chem
 ical contamination and remediation in soils and aquifers or geothermal ene
 rgy exploration.\n 
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STATUS:CONFIRMED
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