Présentation

Sujets de recherche

Drinking Water, Industrial and Urban Contamination of Land, Mining and Petroleum Contamination, Soil and Sediments, Soil Decontamination.

Disciplines de recherche

Earth Science, Water and Environment.

Mots-clés

Environmental Pollution, Soil biogeochemistry, soil redox processes, Water quality.

Intérêts de recherche

groundwater resources, soil redox processes, geogenic contaminants, microbially-mediated redox cycling, organo-mineral interactions, inorganic contaminants, manganese, chromium, uranium, soil carbon cycling

Langues parlées et écrites

Anglais, Français

Prix et distinctions

• Canada Research Chair in Environmental and Soil Biogeochemistry. Natural Sciences and Engineering Research Council of Canada (NSERC). (Prize / Award).
• Certificate of Achievement in Mentoring in the School of Earth, Energy and Environmental Sciences, Stanford University. Stanford University. (Prize / Award).
• International Symposium on Persistent Toxic Substances Best Platform Presentation Award. International Society of Persistent Toxic Substances. (Prize / Award).
• Soil Science of America Student Talk Award, 1st Place. Soil Science Society of America. (Prize / Award).

Financement

Research Chair. (Awarded). Principal Applicant. Canada Research Chair in Soil and Environmental Biogeochemistry. Canada Research Chairs (CRC). 500000 $ (2019-2024).

Grant. (Completed). Principal Applicant. Influence of Organic Compounds on Reactivity of Biogenic Mn Oxides. Paul Scherrer Institut. Swiss Light Source Proposal for Beamline Access. 100000 $ (2017-2018).

Grant. (Completed). Principal Applicant. Using microfluidics to probe spatial coupling of chromium and manganese cycling. Stanford University (California, USA). McGee Grant. 8000 $ (2016).

Publications

Articles de revue

• Hausladen D.M., S.H. Fakhreddine, S. Fendorf. (2019). Governing Constraints of Chromium(VI) Formation from Chromium(III)-bearing Minerals in Soils and Sediments. Soil Systems, (Submitted).
• Hausladen, D.M., A. Alexander-Ozinskis*, C. McClain, S. Fendorf *Graduate mentee. (2018). Hexavalent Chromium Sources and Distribution in California Groundwater. Environ. Sci. Technol., 52(15), 8242-8251. (Published).
• Hausladen, D.M. and S. Fendorf. (2017). Hexavalent Chromium Generation within Naturally Structured Soils and Sediments. Environ. Sci. Technol., 51(4), 2058-2067. (Published).
• Janot N., J.S. Lezama Pacheco, D.Q. Pham, T.M. O’Brien, D.M. Hausladen, V. Noël, K. Maher, S. Fendorf, K.H. Williams, P.E. Long, J.R. Bargar. (2016). Physico-chemical heterogeneity of organic-rich sediments in the Rifle aquier, CO: Impact on uranium biogeochemistry. Environ. Sci. Technol., 50(15), 46-53. (Published).

Rapports

• Hausladen, D.M. (2017). Physical and biogeochemical constraints on hexavalent chromium generation within soils and sediments. Stanford University. 158 p.

Articles de conférence

• Hausladen D, Zelano I, Keiluweit M & Peña J. (2019). Abiotic Transformation of Plant-Derived Carbon by Mn Oxides: Breakdown of Cellobiose by δ-MnO2. Goldschmidt Abstracts, 1299.
• Pena J, Sentchilo V, Hausladen D & Ayala H. (2018). Relationship between carbon availability and biogenic manganese oxide formation. Goldschmidt Abstracts, (Published).
• Hausladen, D.M and J. Peña. (2017). Coupled Dynamics of Carbon and Manganese: Influence of Organic Compounds on Reactivity of Biogenic Mn Oxides. Goldschmidt Abstracts, (Published).
• Janot N., Lezama-Pacheco J.S., Pham D.Q., O'Brien T.M., Hausladen D.M., Williams K.H., Long P.E., Fendorf S. and J.R. Bargar. (2015). Characterization and impact of organic-rich sediments on uranium behavior in the Rifle aquifer, CO. Goldschmidt Abstracts, (Published).
• Hausladen D.M., M.G. Arredondo*, and S. Fendorf. *undergraduate mentee. (2015). Chromium au Naturel: Chromium(VI) Generation within Structured Soils and Sediments. Goldschmidt Abstracts, (Published).
• Hausladen, D.M., & Fendorf, S. E. (2015). Surface Reactions Limiting Chromium (VI) Generation from Naturally Derived Chromium (III) Minerals. American Geophysical Union Fall Meeting Abstracts, (Published).
• Garcia Arredondo*, M., Hausladen, D.M., Ying, S., & Fendorf, S. *undergraduate mentee. (2014). Chromium Mobilization by Microbially-Driven Iron and Manganese Redox Cycling. American Geophysical Union Fall Meeting Abstracts, (Published).
• Hausladen, D.M., S. Mitsunobu, and S. Fendorf. (2014). Spatial Coupling of Chromium and Manganese Cycling: Visualizing Microbial Communities within Complex Chemical Environments. Goldschmidt Abstracts, (Published).

Autres contributions

Gestion d'évènements

• Co-organizer. (2016). Stanford Synchrotron Radiation Lightsource Users’ Conference. (Conference).
• Co-organizer. (2015). Stanford Synchrotron Radiation Lightsource Users’ Conference. (Conference).
• Student Organizer. (2015). Goldschmidt Conference. (Conference).

Activités de collaboration internationale

• Consultant. (2011-2015). Cambodia. Arsenic in Drinking Water Collaboration with Research Development International, Non-profit organization, Phnom Penh, Cambodia on.

Présentations

• (2019). From rock to tap: Expanding our understanding of hexavalent chromium sources in drinking water. Soils Across Latitudes International Conference. San Diego, United States.
• (2018). Control of organic compounds on Mn-oxide reactivity: Implications for contaminant transport and cycling. Journées Biennales des Géosciences et de l’Environnement. Lausanne, Switzerland.
• (2018). Stability and reactivity of biogenic Mn oxides in the presence of natural organic matter. Interfaces Against Pollution International Conference. La Grande Motte, France.
• (2017). Competitive microbial and geochemical processes controlling the fate of chromium. Faculty of Geosciences and Environment Seminar, University of Lausanne. Leysin, Switzerland.
• J. Peña. (2017). Coupled Dynamics of Carbon and Manganese: Influence of Organic Compounds on Reactivity of Biogenic Mn Oxides. Goldschmidt. Paris, France.
• Fakhreddine, S. (2017). Governing Constraints of Chromium(VI) Formation from Chromium(III)-bearing Minerals in Soils and Sediments. Invited Workshop at Technical University of Denmark. Lyngby, Denmark.
• (2017). Influence of organic compounds on the fate of Mn oxide nanoparticles. International Conference on the Biogeochemistry of Trace Elements. Zurich, Switzerland.
• M.G. Arredondo (undergrad mentee), and S. Fendorf. (2015). Chromium au Naturel: Chromium(VI) Generation within Structured Soils and Sediments. Goldschmidt Conference. Prague, Czech Republic.
• (2015). Spatial coupling of chromium and manganese cycling: Generation of hexavalent chromium within soils and sediments. International Symposium on Persistent Toxic Substances. Riverside, United States.
• Fendorf, S. E. (2015). Surface Reactions Limiting Chromium (VI) Generation from Naturally Derived Chromium (III) Minerals. American Geophysical Union. San Francisco, United States.
• (2015). X-ray microprobe imaging of Cr and Mn in structured soils. Stanford Synchrotron Radiation Lightsource Users Meeting. Menlo Park, United States.
• (2014). Bacterial Dynamics Controlling Chromium Cycling within Soil Aggregates. ASA-CSSA-SSSA International Annual Meetings Student Award Presentation. Long Beach, United States.
• (2014). Dynamic interplay of microbially mediated oxidation-reduction reactions controlling chromium cycling in soils and sediments. International Symposium on Subsurface Microbiology. Asilomar, United States.
• S. Mitsunobu, and S. Fendorf. (2014). Spatial Coupling of Chromium and Manganese Cycling: Visualizing Microbial Communities within Complex Chemical Environments. Goldschmidt Conference. Sacramento, United States.
• (2014). Visualizing spatial distribution of biogenic Mn-oxides within Cr-/Fe-oxide soil aggregates using u-XRF-imaging. Stanford Synchrotron Radiation Lightsource Users Meeting. Menlo Park, United States.
• (2013). Community Matters: How Microbially-Mediated Redox Reactions Impact Chromium Cycling within Soil Aggregates. Institute for Environmental Sciences Seminar, University of Shizuoka. Shizuoka, Japan.
• (2013). Oxidation of mixed Cr-Fe hydroxides by birnessite. ASA-CSSA-SSSA International Annual Meetings. Tampa, United States.