Application and performance of remote bioventing systems powered by wind
Conference
·
OSTI ID:467759
- IT Corp., Knoxville, TN (United States)
- IT Corp., Monroeville, PA (United States)
- Army Corps of Engineers, Ft. Wainwright, AK (United States)
Wind-powered bioventing systems were designed to operate at remote locations in the absence of electrical power. Laboratory measurements of soil respiration under bioventing conditions indicated the biodegradation of up to 25 mg of weathered diesel per kg of site soil per day. Further testing demonstrated the potential for harnessing wind-power to stimulate air movement through vadose zone soil. A 12-in. attic turbine in a 10-mph wind was found to generate 0.025 in. of water vacuum with an airflow of approximately 2.5 ft{sup 3} per min. Two wind-powered bioventing systems were installed near Nome, Alaska. In situ respiration tests and soil gas composition measurements indicated that the systems were capable of aerating the soil. Measurements of diesel-range organics (DRO) taken during installation and at the end of the treatment season show concentration reductions of 29 and 87% at the two sites.
- OSTI ID:
- 467759
- Report Number(s):
- CONF-950483--; ISBN 1-57477-003-9
- Country of Publication:
- United States
- Language:
- English
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