Assessment of Natural Attenuation of Chlorinated Aliphatics and BTEX in Subarctic Groundwater

2001 ◽  
Vol 35 (20) ◽  
pp. 4038-4045 ◽  
Author(s):  
Sharon A. Richmond ◽  
Jon E. Lindstrom ◽  
Joan F. Braddock
Keyword(s):  
Natural Attenuation ◽  
Chlorinated Aliphatics

Natural Attenuation of Chlorinated Solvent Ground-Water Plumes Discharging into Wetlands

2002 ◽  
Author(s):  
Christopher P. Antworth ◽  
David R. Burris ◽  
Michelle M. Lorah ◽  
Linda J. Dyer
Keyword(s):  
Ground Water ◽  
Natural Attenuation ◽  
Chlorinated Solvent

The Effect of Mixtures of Xenobiotics and Primary Electron Donor on the Anaerobic Biotransformation of High Concentrations of Chlorinated Aliphatics

1992 ◽  
Vol 26 (1-2) ◽  
pp. 117-126 ◽  
Author(s):  
J. B. Hughes ◽  
G. F. Parkin
Keyword(s):  
Electron Donor ◽  
Mixed Effects ◽  
Primary Electron ◽  
Primary Electron Donor ◽  
Loading Rates ◽  
Chlorinated Aliphatics ◽  
Anaerobic Biotransformation ◽  
Transformation Rates ◽  
High Concentrations ◽  
Effect Of Feeding

Results are presented from experiments addressing the anaerobic biotransfoimation of high concentrations of three chlorinated aliphatics, dichloromethane (DCM), chloroform (CF), and 1,1,1-trichloroethane (TCA), when fed alone and in mixtures. Experiments were conducted to address the effect of feeding mixtures of these compounds on the transformation rates of individual components in the mixture, and to assess the effect of acetate loading rates on the extent of transformation of the chlorinated aliphatics. Feeding mixtures of chlorinated aliphatics caused decreased transformation of TCA, increased the transformation of DCM, and had mixed effects on CF transformation. The systems fed higher acetate loading rates demonstrated an increased ability to transform the chlorinated aliphatics.

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