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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