The major areas of my research interests include the environmental and aqueous geochemistry, hydrogeology, sustainability and environmental quality of water resources. As part of the Christina River Basin Critical Zone Observatory (CRB-CZO), my study will be focused on understanding the organic carbon – mineral complexation mechanisms.
Specifically, the major objective of my investigation is to evaluate
in-situ the sensitivity and variability of the mineral surface area in
soils with respect to a change of redox conditions (reducing versus
oxidizing) across a wide range of landscape positions and uses, such
as floodplain forest, upland forest, agriculture and construction
areas. The research will a combination of the extensive field and
laboratory analyses/experiments coupled with the geochemical reactive
transport modeling.
Lazareva, O., Pichler, T., and Druschel, G. T. Bench-scale leaching experiments to model aquifer storage and recovery (ASR) in laboratory conditions: central Florida case studies (in preparation). Pichler, T., Price, R.,
Lazareva, O. and Pichler, T., 2011. Evaluating complex hydrogeological settings in a constructed wetland: an isotopic/chemical mass balance approach. Wetlands, DOI 10.1007/s13157-011-0173-8
Pichler, T., Price, R., Lazareva, O., and Dippold, A., 2011. Determination of arsenic concentration and distribution in the Floridan Aquifer System. Journal of Geochemical Exploration, DOI10.1016/j.gexplo.2011.02.004
Sparks, D.L., Aufdenkampe, A., Lazareva, O., Hicks, S., Montgomery, D., Arscott, D., Kaplan, L., Newbold, D., Levia, D., March 2011. Christina River Basin Critical Zone Observatory (CRB-CZO): Wireless Environmental Sensor Network. University of Delaware on the Hill.
Washington, DC. Poster presentation.
Lazareva, O., Pichler, T., and Druschel, G., June 2010. Geochemical assessment of geogenic arsenic contamination in the Floridan Aquifer. 20th Annual Goldschmidt Conference on Geochemistry, Knoxville, TN, USA; Oral presentation.
Pichler, T. and Lazareva, O., March 2010. Using mine sites to construct wetlands for sustainable water treatment: An example from central Florida. 239th American Chemical Society National Meeting & Exposition, San Francisco, CA, USA; Oral presentation.
Lazareva, O. and Pichler, T., 2010. Long – term performance of a constructed wetland/filter basin system treating wastewater, Central Florida. Chemical Geology Special Issue 269, 137–152.
Lazareva, O. and Pichler, T., June 2009. Isotope/chemical mass-balance estimation of water inflow into a constructed wetland. 19th Annual Goldschmidt Conference on Geochemistry, Davos, Switzerland; Oral presentation.
Lazareva, O. and Pichler, T., July 2008. Long-term performance of a constructed wetland/filter basin system treating wastewater. 18th Annual Goldschmidt Conference on Geochemistry, Vancouver, Canada; Poster Presentation.
Lazareva, O. and Pichler, T., August 2007. Leaching bench – scale experiments to model aquifer storage and recovery (ASR) operations in laboratory conditions: Central Florida case studies. 17th Annual Goldschmidt Conference on Geochemistry, Cologne, Germany; Poster presentation
Lazareva, O. and Pichler, T., May 2007. Naturally occurring arsenic in the Miocene Hawthorn Group, Southwestern Florida: implication for phosphate mining. Applied Geochemistry 22 (5), 953-973.
Lazareva, O. and Pichler, T., April 2007. Leaching bench – scale experiments to model aquifer storage and recovery (ASR) operations in laboratory conditions: Central Florida. Six Annual USF College of Arts and Sciences Graduate Research Symposium, Tampa FL.
Lazareva, O. and Pichler T., April 2005. Natural arsenic in the Miocene Hawthorn Group, Florida. Florida Universities Summit on Environmental Research, USF, Tampa FL.
Lazareva, O., February 2005. Detailed geochemical and mineralogical analyses of naturally occurring arsenic in the Hawthorn Group, Florida. Invited speaker, US EPA Kerr Environmental Research Center, Ada OK.
Lazareva, O.V. and Pichler T., December 2004. Natural arsenic in the Miocene Hawthorn Group, Florida: wide ranging implications for ASR, phosphate mining, private well. American Geophysical Union Fall Meeting, San Francisco, CA; Poster presentation.
Lazareva, O., December 2004. Detailed geochemical and mineralogical analyses of naturally occurring arsenic in the Hawthorn Group, Master's Thesis, USF, 128 p.
Lazareva, O., Fall 1999 - Spring 2000. Analysis of low humidity impact on rheological properties of moraine loams. Research project, MSU, Moscow, Russia.
Lazareva, O., Fall 1997 - Spring 1998. Environmental problems in the south cryolithozone (Baikal-Amur Mainline), Research project, MSU, Moscow, Russia.
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