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SUMMARY:Modeling Phytoextraction in Contaminated Soils
DTSTART:20150618T110000
DTEND:20150618T120000
DTSTAMP:20260407T074604Z
UID:fc7dae0cefe237e848e3e5280d13b436946062b5ba34d9cd427d1cc8
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Shashi Mathur\, Department of Civil Engineering\, I.I.T.
  Delhi\nAbstract:\nPhytoextraction is an eco-friendly technology through w
 hich plants are used for removing heavy metal contaminant from polluted si
 tes. The effective implementation of this cost effective emerging technolo
 gy requires a conceptual insight of soil and plant processes that control 
 the uptake of targeted contaminant from the problematic area. Most of the 
 current research deals with the plants grown in heavy metal contaminated s
 oils and analyzed experimentally to determine their capacity to remove the
 m from the soil. However\, the prediction of the metal uptake by plants th
 rough mathematical modeling has received very little attention so far due 
 to the complexity of the soil-plant-atmosphere continuum. In this study\, 
 a mathematical model is developed to investigate the removal of a heavy me
 tal\, lead (Pb)\, by maize at different growth stages of the plant. The mo
 del comprised two parts\; 1) moisture flow prediction and 2) contaminant u
 ptake simulation. The first part predicts the actual water uptake by plant
  and computes the hydraulic regime of the soil profile for different moist
 ure conditions. Through the second part of the model\, the lead extraction
  kinetics is simulated using the water uptake data and plant root biomass 
 accumulation. The model yields a set of partial differential equations whi
 ch are solved numerically by the finite difference technique for varying b
 oundary conditions. The moisture flow simulation is validated using the li
 terature of field data for maize and the metal extraction simulation is pe
 rformed based on this prediction for a characteristic example to remediate
  a lead contaminated site.Short biography:\nProf.  Shashi Mathur graduate
 d with a Bachelor of Technology Degree (Civil Engineering) in 1977 and wit
 h a Masters in Water Resources in 1979 from the Indian Institute of Techno
 logy Delhi (I.I.T. Delhi). He was awarded a Ph.D degree from the Universit
 y of Delaware (USA) in 1984 and thereafter worked as Assistant Professor a
 t TSU (Texas A & M University System) till 1988. Prof Mathur subsequently 
 joined the Department of Civil Engineering at IIT Delhi in 1988 and is a P
 rofessor of the Water Resources Section. Prof. Mathur has worked extensive
 ly in the areas of phytoremediation and bioremediation of soils\, biodegra
 dation in municipal solid waste landfills and land subsidence. He has also
  published extensively in International Journals in these areas.
LOCATION:GR A3 32 http://plan.epfl.ch/?room=GR%20A3%2032
STATUS:CONFIRMED
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