DKT Energy Technology
National High-Tech Enterprise; Sichuan Provincial Enterprise Technology Center; Class B Qualification For Chemical Engineering Design; Class A Qualification For Environmental Pollution Prevention And Control; Pressure Pipeline GC1 Design Qualification
Natural gas leakage rapidly initiates microbial digestion reactions.
Sichuan DKT Energy Technology Co., Ltd.( A subsidiary of Hydrexia (China))
Release Date:
2010-09-27
Source:
New findings suggest that, during the Deepwater Horizon oil spill, propane and ethane trapped in the deep ocean provided a rapid initial boost to bacterial degradation of the spilled hydrocarbons, potentially priming bacterial populations over time to take on the more complex hydrocarbon compounds.
Although the Deepwater Horizon well blowout was primarily associated with an oil spill, it also released natural gas, much of which remained trapped in the deep sea under high pressure rather than escaping to the ocean surface. From June 11 to 21, David Valentine and his colleagues collected samples from 31 stations in deep seawater, located between 1 and 12.5 kilometers from the active oil-spill zone. At various depths, they identified four hydrocarbon plumes, each extending in a different direction.
Researchers analyzed the concentrations of natural gas and bacterial activity in these water samples, comparing the younger hydrocarbon plumes closer to the oil spill site with the older plumes farther away. They confirmed that the oxidation of ethane and propane—relatively simple hydrocarbons—by bacteria is the primary driver of the observed declines in oxygen levels in these waters. Similarly, bacterial DNA extracted from the most recent hydrocarbon plume samples reflects the early stages of development of the microbial communities responsible for degrading these hydrocarbons.
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