Biological degradation of 1,2-dichloroethane under groundwater conditions

Stucki, Gerhard; Thüer, Markus; Bentz, Rolf

doi:10.1016/0043-1354(92)90023-w

Cited by 29 publications

(14 citation statements)

References 13 publications

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“…Aerobic packed-bed reactors have been utilized to treat 1,2-DCA from contaminated groundwater. Several bench-scale bioreactors inoculated with the aerobic 1,2-DCA utilizing bacterium Xanthobacter autotrophicus GJ10 degraded 1,2-DCA at influent concentrations ranging from 0.6 to 25 mg l )1 at rates varying from 0.6 to 120 g m )3 reactor d )1 (Friday & Portier 1991;Stucki et al 1992;Stucki & Thuer 1994). Based on the bench-scale studies, a full-scale plant was constructed to treat 1,2-DCA-contaminated groundwater, which has operated successfully for many years (Stucki & Thuer 1995).…”

Section: Degradation Of Lower Chlorinated Ethanes In Engineered Systemsmentioning

confidence: 99%

Biodegradability of chlorinated solvents and related chlorinated aliphatic compounds

Field

Sierra-Álvarez

2004

Rev Environ Sci Biotechnol

130

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The biodegradability of chlorinated methanes, chlorinated ethanes, chlorinated ethenes, chlorofluorocarbons (CFCs), chlorinated acetic acids, chlorinated propanoids and chlorinated butadienes was evaluated based on literature data. Evidence for the biodegradation of compounds in all of the compound categories evaluated has been reported. A broad range of chlorinated aliphatic structures are susceptible to biodegradation under a variety of physiological and redox conditions. Microbial biodegradation of a wide variety of chlorinated aliphatic compounds was shown to occur under five physiological conditions. However, any given physiological condition could only act upon a subset of the chlorinated compounds. Firstly, chlorinated compounds are used as an electron donor and carbon source under aerobic conditions. Secondly, chlorinated compounds are cometabolized under aerobic conditions while the microorganisms are growing (or otherwise already have grown) on another primary substrate. Thirdly, chlorinated compounds are also degraded under anaerobic conditions in which they are utilized as an electron donor and carbon source. Fourthly, chlorinated compounds can serve as an electron acceptor to support respiration of anaerobic microorganisms utilizing simple electron donating substrates. Lastly chlorinated compounds are subject to anaerobic cometabolism becoming biotransformed while the microorganisms grow on other primary substrate or electron acceptor. The literature survey demonstrates that, in many cases, chlorinated compounds are completely mineralised to benign end products. Additionally, biodegradation can occur rapidly. Growth rates exceeding 1 d )1 were observed for many compounds. Most compound categories include chlorinated structures that are used to support microbial growth. Growth can be due to the use of the chlorinated compound as an electron donor or alternatively to the use of the chlorinated compound as an electron acceptor (halorespiration). Biodegradation linked to growth is important, since under such conditions, rates of degradation will increase as the microbial population (biocatalyst) increases. Combinations of redox conditions are favorable for the biodegradation of highly chlorinated structures that are recalcitrant to degradation under aerobic conditions. However, under anaerobic conditions, highly chlorinated structures are partially dehalogenated to lower chlorinated counterparts. The lower chlorinated compounds are subsequently more readily mineralized under aerobic conditions.Abbreviations: A

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Section: Degradation Of Lower Chlorinated Ethanes In Engineered Systemsmentioning

confidence: 99%

Biodegradability of chlorinated solvents and related chlorinated aliphatic compounds

Field

Sierra-Álvarez

2004

Rev Environ Sci Biotechnol

130

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“…In further laboratory-and pilot-scale studies, fixed and fluidized bed reactors with solid particles as support material for bacteria were used. Similarly, in two-phase fluidized-bed reactors, a high recycle rate must be used for oxygen addition and fluidization (Gälli 1986;Burgdorf et al 1991;Stucki et al 1992;Niemann 1993;Herbst 1995). Similarly, in two-phase fluidized-bed reactors, a high recycle rate must be used for oxygen addition and fluidization (Gälli 1986;Burgdorf et al 1991;Stucki et al 1992;Niemann 1993;Herbst 1995).…”

Section: 21mentioning

confidence: 99%

Biodegradation of Special Organic Compounds

Wiesmann

Choi

Dombrowski

2006

Fundamentals of Biological Wastewater Treatment

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“…Low levels of dichloroethane were removed at low temperatures and low salinity, i.e., under groundwater conditions. On the basis of these results, a full-scale groundwater purification plant (20 m3 h-1) was designed (475).…”

Section: Application Of Microbial Systems In Environmental Protectionmentioning

confidence: 99%

Bacterial dehalogenases: biochemistry, genetics, and biotechnological applications.

Fetzner

Lingens

1994

Microbiological Reviews

260

134

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hydraulic and heat transfer fluids, plasticizers, and intermediates for chemical syntheses. Because of their toxicity, bioconcentration, and persistence, the ubiquitous distribution of halogenated compounds in the biosphere has caused public concern over the possible effects on the quality of life. Concerning toxicity, an important problem is the diversity of toxic compounds and by-products in many formulations of industrial products. This problem applies to mixtures of polychlorinated biphenyls (PCBs) or chlorinated terpenes, poly-641

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Biological degradation of 1,2-dichloroethane under groundwater conditions

Cited by 29 publications

References 13 publications

Biodegradability of chlorinated solvents and related chlorinated aliphatic compounds

Biodegradability of chlorinated solvents and related chlorinated aliphatic compounds

Biodegradation of Special Organic Compounds

Bacterial dehalogenases: biochemistry, genetics, and biotechnological applications.

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