Volatilization of organic compounds in an aerated stirred-tank reactor

Miscellaneous · Tue Jan 01 00:00:00 EST 1991

OSTI ID:5119528

Libra, J A

Volatilization must be considered as a removal mechanism when treating waste-waters containing volatile organic compounds (VOC's). This study investigated the simultaneous mass transfer of oxygen and three organic compounds in an aerated stirred tank reactor to determine if the ratio of the two mass transfer coefficients, K{sub L}a{sub VOC}/k{sub L}a{sub O2}, can be used to predict volatilization rates for semi-volatile compounds. This work expands the range of compound volatility and the types of waters investigated to semi-volatile organic compounds in water containing an anionic surfactant over a larger power range than previously studied. The mass transfer coefficients of oxygen and three VOC's: toluene, dichloromethane, and 1,2-dichlorobenzene, were determined in three water systems: tap water, tap water with an anionic surfactant, dodecyl sodium sulfate (DSS), and tap water with biomass (k{sub L}a{sub O2} only). A steady state method was used. Experiments were made to span the range of mass transfer coefficients found in both municipal and industrial wastewater treatment processes. The results were analyzed using dimensional analysis.

• Research Organization: California Univ., Los Angeles, CA (United States)
• OSTI ID: 5119528
• Resource Relation: Other Information: Thesis (Ph.D.)
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
CHLORINATED ALIPHATIC HYDROCARBONS
MASS TRANSFER
CHLORINATED AROMATIC HYDROCARBONS
TOLUENE
WASTE WATER
WASTE PROCESSING
AERATION
SURFACTANTS
VOLATILITY
ALKYLATED AROMATICS
AROMATICS
HALOGENATED ALIPHATIC HYDROCARBONS
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
OXYGEN COMPOUNDS
PROCESSING
WASTE MANAGEMENT
WASTES
WATER
540320* - Environment
Aquatic- Chemicals Monitoring & Transport- (1990-)
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)