Effects of electron acceptors on halogenated organic compound biotransformations in a biofilm column
Cobb, GD; Bouwer, EJ
| HERO ID | 658687 |
|---|---|
| In Press | No |
| Year | 1991 |
| Title | Effects of electron acceptors on halogenated organic compound biotransformations in a biofilm column |
| Authors | Cobb, GD; Bouwer, EJ |
| Journal | Environmental Science & Technology |
| Volume | 25 |
| Issue | 6 |
| Page Numbers | 1068-1074 |
| Abstract | BIOSIS COPYRIGHT: BIOL ABS. The transformability of trihalomethanes, carbon tetrachloride, 1,1,1-trichloroethane, 1,2-dibromomethane, tetrachloroethylene, dibromochloropropane, and chlorinated benzenes was evaluated by a biofilm utilizing a mixture of primary electron acceptors (oxygen, nitrate, and sulfate). These compounds at concentrations commonly found in groundwater were continuously administered for 4 years to a biofilm column reactor that resembled polluted groundwater environments. Acetate was the primary substrate to support microbial growth. Sequential biofilm zones of aerobic respiration, denitrification, and sulfate reduction developed within the column. Transformation of the halogenated aliphatic compounds coincided with the onset of sulfate reduction in the column. The temporary absence of nitrate and sulfate in the column feed decreased the steady-state removals for several of the halogenated aliphatic compounds. These results suggest that sulfate was an important primary electron |
| Doi | 10.1021/es00018a008 |
| Wosid | WOS:A1991FN92500012 |
| Url | https://search.proquest.com/docview/16053370?accountid=171501 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Keyword | Gases;Biochemistry methods;Biochemistry;Biomedical engineering;Biophysics;Engineering;Energy metabolism;Respiration;Air pollution;Soil pollutants;Water pollution;Biodegradation;Industrial microbiology;Microbiology;14808-79-8;583-53-9;541-73-1;127-18-4;124-48-1;120-82-1;106-93-4;106-46-7;96-12-8;95-50-1;75-27-4;75-25-2;71-55-6;71-50-1;67-66-3;56-23-5 |
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