Evaluation of rotary air stripping for removal of volatile organics from groundwater. Final report, 1 March 1985-1 September 1986
Rotary air stripping was researched and developed to remove volatile organic contaminants from groundwater. The Traverse Group, Inc, Ann Arbor MI, was contracted under a joint funding venture by the US Coast Guard and the US Air Force to evaluate feasibility of using rotary air stripping to treat water contaminated with benzene, toluene, xylenes, trichloroethylene, 1,2,dichloroethane, and tetrachloroethylene. A site of groundwater contamination at the US Coast Guard Station, Traverse City MI provided a readily available source of contaminated water for this work. A prototype rotary air stripper (RAS), manufactured specifically for this project, was installed onsite in Traverse City MI. The RAS (consisting of a packed-bed 1.7 feet in diameter by 1.2 feet thick) was evaluated over a range of contaminant concentrations (63 to 19,000 ppb), liquid flow rates (50 to 120 gpm), air-to-water ratios (10:1 to 170:1 vol/vol), and rotor speeds (365 to 875 rpms). The effect of each parameter on removal efficiency was analyzed. Generally, removal efficiencies in excess of 99 percent were achieved for all contaminants (except 1,2-DCE) at an air-to-water ratio and rotor speed of 30:1 vol/vol and 435 rpms, respectively.
- Research Organization:
- Traverse Group, Inc., Ann Arbor, MI (USA)
- OSTI ID:
- 6551428
- Report Number(s):
- AD-A-178831/4/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GROUND WATER
HAZARDOUS MATERIALS
WATER POLLUTION CONTROL
ORGANIC COMPOUNDS
REMOVAL
ACCELERATION
BENZENE
EFFICIENCY
FLOW RATE
FLUID FLOW
LIQUIDS
MASS TRANSFER
ROTORS
VOLATILITY
WATER TREATMENT
XYLENES
ALKYLATED AROMATICS
AROMATICS
CONTROL
FLUIDS
HYDROCARBONS
HYDROGEN COMPOUNDS
MATERIALS
OXYGEN COMPOUNDS
POLLUTION CONTROL
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)