Common Hydraulic Fracturing Fluid Additives Alter the Structure and Function of Anaerobic Microbial Communities.
Autor: | Mumford AC; U.S. Geological Survey, Reston, Virginia, USA amumford@usgs.gov., Akob DM; U.S. Geological Survey, Reston, Virginia, USA., Klinges JG; U.S. Geological Survey, Reston, Virginia, USA., Cozzarelli IM; U.S. Geological Survey, Reston, Virginia, USA. |
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Jazyk: | angličtina |
Zdroj: | Applied and environmental microbiology [Appl Environ Microbiol] 2018 Apr 02; Vol. 84 (8). Date of Electronic Publication: 2018 Apr 02 (Print Publication: 2018). |
DOI: | 10.1128/AEM.02729-17 |
Abstrakt: | The development of unconventional oil and gas (UOG) resources results in the production of large volumes of wastewater containing a complex mixture of hydraulic fracturing chemical additives and components from the formation. The release of these wastewaters into the environment poses potential risks that are poorly understood. Microbial communities in stream sediments form the base of the food chain and may serve as sentinels for changes in stream health. Iron-reducing organisms have been shown to play a role in the biodegradation of a wide range of organic compounds, and so to evaluate their response to UOG wastewater, we enriched anaerobic microbial communities from sediments collected upstream (background) and downstream (impacted) of an UOG wastewater injection disposal facility in the presence of hydraulic fracturing fluid (HFF) additives: guar gum, ethylene glycol, and two biocides, 2,2-dibromo-3-nitrilopropionamide (DBNPA) and bronopol (C (This is a work of the U.S. Government and is not subject to copyright protection in the United States. Foreign copyrights may apply.) |
Databáze: | MEDLINE |
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