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• Monitoring of Supercritical CO₂ Flooding
  

  Monitoring of Supercritical CO₂ Flooding

  ESD’s Seiji Nakagawa led a team of investigators (including ESD’s Tim Kneafsey, Tom Daley, and Barry Freifeld) in conducting laboratory measurements of the seismic properties of sandstones during supercritical CO₂ injection.

• Dissolution Kinetics & Dolomite-Water
  

  Dissolution Kinetics & Dolomite-Water

  Elucidating dissolution kinetics and mechanisms at carbonate mineral–water interfaces is essential to many environmental and geochemical processes, including geologic CO₂ sequestration in deep aquifers.

• Impact of CO₂ Sequestration
  

  Impact of CO₂ Sequestration

  Proper site selection for CO2 geologic storage requires assessing the impact of potential leakage of CO2 from deep subsurface reservoirs to overlying drinking water aquifers.

• Production of Biofuels from Switchgrass
  

  Production of Biofuels from Switchgrass

  ESD’s Harry Beller and others analyzed processes that could produce either ethanol or a representative fatty acid ethyl ester (FAEE) via the fermentation of sugars liberated from lignocellulosic.

• Functionalizing Bacterial Surfaces
  

  Functionalizing Bacterial Surfaces

  ESD’s Harry Beller and others show functionalization of bacterial cell surfaces has the potential to introduce new activities by chemical modification.

• Metabolic Phenotyping of Bacteria
  

  Metabolic Phenotyping of Bacteria

  Cyanobacteria, like algae and plants, can use solar power to capture CO₂ via the Calvin–Benson–Bassham (CBB) cycle and convert it to a suite of organic compounds.

• Linking Silicate Surface Reactivity
  

  Linking Silicate Surface Reactivity

  ESD geochemists Damien Daval, Giuseppi Saldi, and Kevin Knauss recently investigated the dissolution of a common silicate (diopside).

• Separating Uranium(IV) and Uranium(VI)
  

  Separating Uranium(IV) and Uranium(VI)

  Previous methods for separating dissolved U(IV) from dissolved U(VI) under acidic anoxic conditions prior to laboratory analysis were ineffective with materials currently available commercially.

• CO₂ Fluxes from Trees
  

  CO₂ Fluxes from Trees

  Tree stems and branches emit carbon dioxide (CO₂) at rates that per unit area can rival emissions from leaves or the soil surface and summed over a forest stand can comprise 14–30% of the total CO₂ efflux.

• DSSS: Professor Maurice Dusseault
  

  DSSS: Professor Maurice Dusseault

  ESD welcomed Maurice Dusseault, Ph.D. (Univ. of Waterloo), who presented "Hydraulic Fracturing: Theory – Reality – Uncertainty" March 15.  Video replay now available!