Some characteristics of bacteria found in a bioreactor to treat trichloroethylene-contaminated groundwater.
A mixture of bacteria, having a methane-utilizing ability, was separated from a bioreactor supplied with air and methane gas. The bioreactor was operated to treat trichloroethylene (TCE)-contaminated groundwater. The mixture was composed of an obligate methane-utilizing bacterium and a heterotroph, identified as Methylomonas methanica and Pseudomonas sp., respectively. The mixed culture of these two strains removed TCE. In addition, it appeared that a cooperative metabolic interaction of these strains enabled Meth.methanica to maintain the TCE degradation ability.
Arai
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Engineering Research Center, NKK Corporation, Kanagawa, Japan.
Tsubone
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Takechi
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Inoue
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D019149:Bioreactors / Q000382:microbiology*; D008697:Methane / Q000378:metabolism; D008772:Methylococcaceae / Q000302:isolation & purification / Q000648:ultrastructure; D008854:Microscopy, Electron; D011549:Pseudomonas / Q000302:isolation & purification / Q000648:ultrastructure; D012997:Solvents; D014241:Trichloroethylene; D014877:Water Pollution, Chemical
D012997:Solvents; D014241:Trichloroethylene; D008697:Methane