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Microcosm study of enhanced biotransformation of vinyl chloride to ethylene with TCE additions under anaerobic conditions from Point Mugu, California

Creator:: Pang, Incheol Jonathan
Abstract:: This microcosm study demonstrated the enhanced anaerobic transformation of vinyl chloride (VC) to ethylene. A previous microcosm study from Point Mugu site showed the accumulation of VC due to the slow transformation step of VC to ethylene. To overcome the rate-limiting step, two laboratory experiments tested the effect of trichloroethylene...
Resource Type:: Masters Thesis
Full Text:: added at high concentrations (100 mg/L and 200 mg/L), nearly complete transformation of TCE to ethylene

An anaerobic microcosm study of TCE transformation by microbes stimulated from the Gilbert-Mosley site, Wichita, Kansas

Creator:: Pon, George
Abstract:: A mix-culture of methanogenic and sulfate-reducing bacteria was capable of degrading trichloroethylene (TCE) to dichloroethylene (DCE). The culture was incubated under anaerobic conditions within a soil sample taken from Gilbert-Mosley site, Wichita, Kansas. To stimulate the growth of indigenous bacteria, a carbon and energy source was added in this microcosm...
Resource Type:: Masters Thesis
Full Text:: , although the groundwater contained about 46 mg/L of nitrate. Nitrate reduction appeared earlier and the

Bench-scale study for the bioremediation of chlorinated ethylenes at Point Mugu Naval Air Weapons Station, Point Mugu California, IRP Site 24

Creator:: Keeling, Matthew Thomas
Abstract:: Laboratory scale microcosm studies were conducted using site specific groundwater and aquifer solids to assess the feasibility of stimulating indigenous microorganisms in-situ to biologically transform Trichloroethylene (TCE) and its lesser chlorinated daughter products dichloroethylene (DCE) and vinyl chloride (VC). Three different treatments were conducted to determine the best approach for...
Resource Type:: Masters Thesis
Full Text:: sulfate concentrations in the microcosms averaged 1,297 mg/L and TCE was added to levels of 2.3 mg/L

Aerobic cometabolism of chlorinated aliphatic hydrocarbons by subsurface microbes grown on methane, propane and butane from the McCellan Air Force Base

Creator:: Tovanabootr, Adisorn
Resource Type:: Masters Thesis
Full Text:: microcosms designs. (a) Wilson, 1981, (b) Dunlap, 1972, (c) Bengtsson, 1981. (Bedient et al., 1992) 5 2.1

Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

Creator:: Tejasen, Sarun
Abstract:: The aerobic transformation of TCE and cis-DCE by a tetrabutoxysilane-grown microorganism (Vancheeswaran et al., 1999) led to the investigation of novel substrates, including benzyl alcohol, for promoting cometabolism. The culture grew on carboxylic compounds and alcohols, but did not grow on formate, methanol, methane, propane, butane, ethylene, benzene, toluene, or...
Resource Type:: Dissertation
Full Text:: et al., 1989; Wilson and Wilson, 1985), phenol (Folsom et al., 1990; Nelson et al., 1987), toluene

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Creator:: Mustafa, Nizar Ahmad
Abstract:: Halogenated organic compounds have had widespread and massive applications in industry, agriculture, and private households, for example, as degreasing solvents, flame retardants and in polymer production. They are released to the environment through both anthropogenic and natural sources. The most common chlorinated solvents present as contaminants include tetrachloroethene (PCE, perchloroethene)...
Resource Type:: Dissertation
Full Text:: /L. The sorbed concentration is based on mass balances using the aqueous concentration

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Creator:: Vancheeswaran, Sanjay
Abstract:: At Site-300, Lawrence Livermore National Laboratory (LLNL), CA, trichloroethene (TCE) is present along with tetraalkoxysilanes such as tetrabutoxysilane (TBOS) and tetrakis(2-ethylbutoxy) silane (TKEBS), as subsurface contaminants. Intrinsic transformation of TCE to cis-dichloroethene (c-DCE) was observed in the groundwater at locations co-contaminated with TBOS or TKEBS. Attenuation of TBOS and TKEBS...
Resource Type:: Masters Thesis
Full Text:: mineralization 46 3.4 Aerobic degradation of 20 mg/L of TBOS (a) or TKEBS (b) by the enriched microbial

Aerobic degradation of chlorinated ethenes by Mycobacterium strain JS60 in the presence of organic acids

Creator:: Blatchford, Christina
Abstract:: This study evaluated the potential of the aerobic Mycobacterium strain JS6O to grow on a variety of organic acid substrates, and the possible effects an organic acid would have on the degradation rate of vinyl chloride (VC). A series of batch growth tests were designed to determine the time it...
Resource Type:: Masters Thesis
Full Text:: , t-DCE, and 1,l-DCE..........................55 SUMMARY

Aerobic cometabolism of chlorinated aliphatic hydrocarbons by a butane-grown mixed culture : transformation abilities, kinetics and inhibition

Creator:: Kim, Young
Resource Type:: Dissertation
Full Text:: potential for treating mixtures of l,l,1-TCA, 1,l-DCE, and 1,1-dichioroethane (1,1- DCA) that are commonly

Inhibition, kinetic and modeling studies of acetylene and 1-chloro-1-fluoroethene on reductive dechlorination of TCE and vinyl chloride

Creator:: Pon, George
Abstract:: Laboratory and modeling studies were performed with a mixed-anaerobic-culture obtained from the Evanite site in Corvallis, Oregon. The culture completely transforms trichloroethene (TCE) to cis-dichloroethene (c-DCE), vinyl chloride (VC), and finally to ethene. Acetylene inhibition studies were used to examine the culture's microbial activities. Kinetic studies determined the half-saturated constant...
Resource Type:: Dissertation
Full Text:: , DC. 8. Semprini L.; Kitanidis, P.K.; Kampbell D. H.; Wilson, J.T. Water Resources Research, 1995, 31

ScholarsArchive@OSU

Microcosm study of enhanced biotransformation of vinyl chloride to ethylene with TCE additions under anaerobic conditions from Point Mugu, California

An anaerobic microcosm study of TCE transformation by microbes stimulated from the Gilbert-Mosley site, Wichita, Kansas

Bench-scale study for the bioremediation of chlorinated ethylenes at Point Mugu Naval Air Weapons Station, Point Mugu California, IRP Site 24

Aerobic cometabolism of chlorinated aliphatic hydrocarbons by subsurface microbes grown on methane, propane and butane from the McCellan Air Force Base

Aerobic biotransformation of chlorinated aliphatic hydrocarbons by a benzyl alcohol grown mixed culture : cometabolism, mechanisms, kinetics and modeling

Numerical simulation of anaerobic reductive dechlorination of CAHs in continuous flow systems

Abiotic and biological transformation of TBOS and TKEBS, and their role in the biological transformation of TCE and c-DCE

Aerobic degradation of chlorinated ethenes by Mycobacterium strain JS60 in the presence of organic acids

Aerobic cometabolism of chlorinated aliphatic hydrocarbons by a butane-grown mixed culture : transformation abilities, kinetics and inhibition

Inhibition, kinetic and modeling studies of acetylene and 1-chloro-1-fluoroethene on reductive dechlorination of TCE and vinyl chloride

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