JSU Newswire
Jacksonville, Alabama

Dr. Steffy Presents Research Findings at Annual GSA Meeting

November 10, 2003 -- Dr. David Steffy, from the Department of Physical and Earth Sciences at Jacksonville State University, recently presented his research on Hydrogeology III:  Mass Transport and Hydrogeochemistry at the 115th annual meeting of the Geological Society of America held at the Washington State Convention and Trade Center in Seattle. 

Dr. Steffy found that because of its low concentration of critical micelle, quick mobilization of low-density, non-aqueous phase liquids (LNAPL) by tension reduction, large LNAPL recovery rates and low oxygen demand, humic acid is a promising surfactant that enhances the mobilization of LNAPL.  However, in his research Dr. Steffy also found that humic acid readily disperses pore-clogging clay and eventually degrades over time.

Dr. Steffy's findings were discussed among 7,200 geoscientists making this the largest annual meeting in GSA history.


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