Accession Number : ADA324119

Title :   Test Plan and Technical Protocol for a Field Treatability Test for Bioventing. Revision,

Corporate Author : AIR FORCE CENTER FOR ENVIRONMENTAL EXCELLENCE BROOKS AFB TX

Personal Author(s) : Hinchee, R. E. ; Ong, S. K. ; Miller, R. N. ; Downey, D. C. ; Frandt, R.

PDF Url : ADA324119

Report Date : MAY 1992

Pagination or Media Count : 93

Abstract : Bioventing is the process of aerating subsurface soils to stimulate in situ biological activity and promote bioremediation. Although it is related to the process of soil venting (aka soil vacuum extraction, soil gas extraction, and in situ soil stripping), their primary objectives are different. Soil venting is designed and operated to maximize the volatilization of low-molecular-weight compounds, with some biodegradation occurring. In contrast, bioventing is designed to maximize biodegradation of aerobically biodegradable compounds, regardless of their molecular weight, with some volatilization occurring. The major difference between these technologies is that the objective of soil venting is volatilization, and the objective of bioventing is biodegradation. Although both technologies involve venting of air through the subsurface, the differences in objectives result in different design and operation of the remedial systems.

Descriptors :   *GASES, *CONTAMINANTS, *SOIL POLLUTION, *BIODEGRADATION, *JET ENGINE FUELS, *FUEL CONTAMINATION, TEST AND EVALUATION, BIOLOGY, MOLECULAR WEIGHT, AIR FLOW, VACUUM, VOLATILITY, EXTRACTION, SUBSURFACE, DIESEL FUELS, GASOLINE, SOIL SURVEYS, BIODETERIORATION, VENTING.

Subject Categories : Soil Mechanics
      Fuels
      Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE