Anaerobic Biotransformation of Trichlorofluoroethene in Groundwater Microcosms

1999 ◽  
Vol 33 (12) ◽  
pp. 2040-2045 ◽  
Author(s):  
Sanjay Vancheeswaran ◽  
Michael R. Hyman ◽  
Lewis Semprini
Keyword(s):  
Anaerobic Biotransformation

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.

Anaerobic Biotransformation of Organoarsenical Pesticides Monomethylarsonic Acid and Dimethylarsinic Acid

2006 ◽  
Vol 54 (11) ◽  
pp. 3959-3966 ◽  
Author(s):  
Reyes Sierra-Alvarez ◽  
Umur Yenal ◽  
Jim A. Field ◽  
Mike Kopplin ◽  
A. Jay Gandolfi ◽  
...  
Keyword(s):  
Dimethylarsinic Acid ◽  
Monomethylarsonic Acid ◽  
Anaerobic Biotransformation

scholarly journals Microbial Diversity in Sulfate-Reducing Marine Sediment Enrichment Cultures Associated with Anaerobic Biotransformation of Coastal Stockpiled Phosphogypsum (Sfax, Tunisia)

2017 ◽  
Vol 8 ◽  
Author(s):  
Hana Zouch ◽  
Fatma Karray ◽  
Fabrice Armougom ◽  
Sandrine Chifflet ◽  
Agnès Hirschler-Réa ◽  
...  
Keyword(s):  
Microbial Diversity ◽  
Marine Sediment ◽  
Sulfate Reducing ◽  
Enrichment Cultures ◽  
Anaerobic Biotransformation

scholarly journals Identification of Anaerobic Selenate-Respiring Bacteria from Aquatic Sediments

2007 ◽  
Vol 73 (11) ◽  
pp. 3519-3527 ◽  
Author(s):  
Priya Narasingarao ◽  
Max M. Häggblom
Keyword(s):  
16S Rrna ◽  
16S Rrna Gene ◽  
Anaerobic Respiration ◽  
Pseudomonas Stutzeri ◽  
Elemental Selenium ◽  
Rrna Gene ◽  
Terminal Electron Acceptor ◽  
Isolation And Characterization ◽  
Anaerobic Biotransformation ◽  
Gene Similarity

ABSTRACT The diversity population of microorganisms with the capability to use selenate as a terminal electron acceptor, reducing it to selenite and elemental selenium by the process known as dissimilatory selenate reduction, is largely unknown. The overall objective of this study was to gain an in-depth understanding of anaerobic biotransformation of selenium in the environment, particularly anaerobic respiration, and to characterize the microorganisms catalyzing this process. Here, we demonstrate the isolation and characterization of four novel anaerobic dissimilatory selenate-respiring bacteria enriched from a variety of sources, including sediments from three different water bodies in Chennai, India, and a tidal estuary in New Jersey. Strains S5 and S7 from India, strain KM from the Meadowlands, NJ, and strain pn1, categorized as a laboratory contaminant, were all phylogenetically distinct, belonging to various phyla in the bacterial domain. The 16S rRNA gene sequence shows that strain S5 constitutes a new genus belonging to Chrysiogenetes, while strain S7 belongs to the Deferribacteres, with greater than 98% 16S rRNA gene similarity to Geovibrio ferrireducens. Strain KM is related to Malonomonas rubra, Pelobacter acidigallici, and Desulfuromusa spp., with 96 to 97% 16S rRNA gene similarity. Strain pn1 is 99% similar to Pseudomonas stutzeri. Strains S5, S7, and KM are obligately anaerobic selenate-respiring microorganisms, while strain pn1 is facultatively anaerobic. Besides respiring selenate, all these strains also respire nitrate.

6:2 and 8:2 Fluorotelomer Alcohol Anaerobic Biotransformation in Digester Sludge from a WWTP under Methanogenic Conditions

2013 ◽  
Vol 47 (9) ◽  
pp. 4227-4235 ◽  
Author(s):  
Shu Zhang ◽  
Bogdan Szostek ◽  
Patricia K. McCausland ◽  
Barry W. Wolstenholme ◽  
Xiaoxia Lu ◽  
...  
Keyword(s):  
Anaerobic Biotransformation

Anaerobic Biotransformation of Roxarsone and Related N-Substituted Phenylarsonic Acids

2006 ◽  
Vol 40 (9) ◽  
pp. 2951-2957 ◽  
Author(s):  
Irail Cortinas ◽  
Jim A. Field ◽  
Mike Kopplin ◽  
John R. Garbarino ◽  
A. Jay Gandolfi ◽  
...  
Keyword(s):  
Anaerobic Biotransformation

A Field Experiment for the Anaerobic Biotransformation of Aromatic Hydrocarbon Compounds at Seal Beach, California

1991 ◽  
pp. 487-496
Author(s):  
M. Reinhard ◽  
L.E. Wills ◽  
H.A. Ball ◽  
T. Harmon ◽  
D.W. Phipps ◽  
...  
Keyword(s):  
Aromatic Hydrocarbon ◽  
Field Experiment ◽  
Anaerobic Biotransformation
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