| Title |
Applicability of Microaerobic Technology to Enhance BTEX Removal from Contaminated Waters
|
|---|---|
| Published in |
Applied Biochemistry and Biotechnology, October 2017
|
| DOI | 10.1007/s12010-017-2618-x |
| Pubmed ID | |
| Authors |
Paulo Igor M. Firmino, Raquel S. Farias, Amanda N. Barros, Patrícia G. C. Landim, Gervina B. M. Holanda, Elisa Rodríguez, Alexandre C. Lopes, André B. dos Santos |
| Abstract |
As the addition of low concentrations of oxygen can favor the initial degradation of benzene, toluene, ethylbenzene, and xylenes (BTEX) compounds, this work verified the applicability of the microaerobic technology to enhance BTEX removal in an anaerobic bioreactor supplemented with high and low co-substrate (ethanol) concentrations. Additionally, structural alterations on the bioreactor microbiota were assessed throughout the experiment. The bioreactor was fed with a synthetic BTEX-contaminated water (~ 3 mg L(-1) of each compound) and operated at a hydraulic retention time of 48 h. The addition of low concentrations of oxygen (1.0 mL min(-1) of atmospheric air at 27 °C and 1 atm) assured high removal efficiencies (> 80%) for all compounds under microaerobic conditions. In fact, the applicability of this technology showed to be viable to enhance BTEX removal from contaminated waters, especially concerning benzene (with a 30% removal increase), which is a very recalcitrant compound under anaerobic conditions. However, high concentrations of ethanol adversely affected BTEX removal, especially benzene, under anaerobic and microaerobic conditions. Finally, although bacterial community richness decreased at low concentrations of ethanol, in general, the bioreactor microbiota could deal with the different operational conditions and preserved its functionality during the whole experiment. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 27 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 27 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 5 | 19% |
| Student > Bachelor | 4 | 15% |
| Student > Ph. D. Student | 4 | 15% |
| Student > Master | 3 | 11% |
| Other | 2 | 7% |
| Other | 2 | 7% |
| Unknown | 7 | 26% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 6 | 22% |
| Biochemistry, Genetics and Molecular Biology | 3 | 11% |
| Engineering | 3 | 11% |
| Chemistry | 2 | 7% |
| Agricultural and Biological Sciences | 2 | 7% |
| Other | 3 | 11% |
| Unknown | 8 | 30% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 October 2017.
All research outputs
#18,573,839
of 23,005,189 outputs
Outputs from Applied Biochemistry and Biotechnology
#1,794
of 2,527 outputs
Outputs of similar age
#247,363
of 323,064 outputs
Outputs of similar age from Applied Biochemistry and Biotechnology
#13
of 39 outputs
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