Removal of volatile organic compounds from groundwater using a rotary air stripper

Journal Article · Sat Feb 01 04:00:00 EST 1992 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00002a019· OSTI ID:7160979

Singh, S P ^[1]; Wilson, J H; Counce, R M; Villiers-Fisher, J F; Jennings, H L ^[2]; Lucero, A J; Reed, G D ^[3]; Ashworth, R A; Elliott, M G ^[4]

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1. Robotics and Process Systems Div., Oak Ridge National Lab., Oak Ridge, TN (United States)
2. Oak Ridge National Lab., TN (United States). Chemical Technology Div.
3. Tennessee Univ., Knoxville, TN (United States). Dept. of Chemical Engineering
4. US Air Force, Tyndall Air Force Base, FL (United States)

In this paper, the performance of a centrifugal vapor-liquid contactor is evaluated for air stripping of jet fuel components from ground water. Hydraulic test data indicated that the Sherwood flooding correlation, which has been proposed for use in designing centrifugal vapor-liquid contactors, overestimates the rotational speeds at which flooding occurs. A concept of the area of a transfer unit (ATU) was introduced in the mass-transfer tests to account for the change in fluid loading with the radius of the packing torus. A new correlation based on the specific surface area of the packing for predicting ATU described the experimental data with a fair degree of accuracy. The power consumed in rotating the packing torus was found to depend mainly on the liquid flow, outer rotor radius, and rotational speed. Previous claims in the literature that the centrifugal vapor-liquid contactor is resistant to fouling because of high shear forces were not found to be valid for groundwater with high iron content.

• DOE Contract Number: AC05-84OR21400
• OSTI ID: 7160979
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Journal Name: Industrial and Engineering Chemistry Research; (United States) Vol. 31:2; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

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54 ENVIRONMENTAL SCIENCES
540320 -- Environment
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CENTRIFUGAL PUMPS
CONTROL
DATA
DESIGN
EXPERIMENTAL DATA
FLUIDS
FOULING
GASES
GROUND WATER
HYDROGEN COMPOUNDS
INFORMATION
LIQUID WASTES
LIQUIDS
MANAGEMENT
MASS TRANSFER
MATERIALS RECOVERY
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION
POLLUTION CONTROL
PROCESSING
PUMPS
REMEDIAL ACTION
RESOURCE CONSERVATION
ROTORS
VAPORS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
WATER POLLUTION
WATER POLLUTION CONTROL