NATURAL BIOVENTING REMEDIATION FROM TIDAL WAVE ACTION AT A FIELD SITE

D.H. Kampbell1, J.E. Hansen2, and J.A. Kittel3, 1USEPA National Risk Management Research Laboratory, Ada, OK, 74820, 2U.S. Air Force Center for Environmental Excellence, Brooks Air Force Base, TX, 78235, and 3Battelle, 505 King Avenue, Columbus, OH, 43201

ABSTRACT A remediation research study has been implemented at a jet fuel spill site on an island airport. A buried pipeline fracture several years ago resulted in a fuel spill exceeding 160,000 gallons. The site hydrogeology is a fragmented coral matrix with fresh water overlying more dense salt water. Water table fluctuations of about two feet occur once every twelve hours from tidal action. The research approach being pursued is to recover free-phase floating petroleum liquid using vacuum-mediated subsurface skimming wells. The vacuum will create an active vadose zone aeration to enhance aerobic biodegradation processes and vaporization of fuel. Once the floating fuel is removed, a natural bioventing action caused by tidal oscillations will complete remediation of the spill site.

KEYWORDS: bioventing, slurper, wave action, jet fuel

This paper is from the Proceedings of the HSRC/WERC Joint Conference on the Environment, May 1996, published in hard copy and on the Web by the Great Plains/Rocky Mountain Hazardous Substance Research Center.

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