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Cleaner fracking
by Staff Writers
Washington DC (SPX) Oct 18, 2012


Bomgardner notes that treating the wastewater is a special challenge in the Marcellus Shale area of the Appalachian Basin, where wastewater - millions of gallons per well - must be trucked away for disposal.

The technology that opened a wealth of new natural gas resources in the U.S. is producing millions of gallons of dirty water - enough from one typical gas well to cover a football field to a depth of 9-15 feet.

Cleaning up that byproduct of "fracking" is the topic of the cover story of the current issue of Chemical and Engineering News. C and EN is the weekly newsmagazine of the American Chemical Society, the world's largest scientific society.

Melody M. Bomgardner, C and EN senior business editor, explains that hydraulic fracturing, or fracking, uses a mixture of water and chemicals injected into the ground to break open rock and release natural gas.

Some of that water comes back out of the ground, laden with various salts, minerals, heavy metals and other substances that pose health and environmental risks.

The article describes how water treatment firms are responding to that challenge, developing new ways to treat fracking wastewater and competing for business.

Some companies have developed chemical treatments to remove contaminants and microbes from the wastewater, which can then be reused, while others use evaporators to separate fresh water from the brine.

Bomgardner notes that treating the wastewater is a special challenge in the Marcellus Shale area of the Appalachian Basin, where wastewater - millions of gallons per well - must be trucked away for disposal.

The cost of disposal is spurring oil and gas companies to adopt these and other technologies that could limit the amount of contaminated water that reaches people, plants and animals, the article notes.

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Related Links
American Chemical Society
Powering The World in the 21st Century at Energy-Daily.com






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New York (AFP) Oct 18, 2012
Oil prices eased Thursday as investors digested economic data on slowing growth in China, the world's biggest energy consumer. New York's main contract, light sweet crude for November, ended nearly unchanged from Wednesday's close, slipping two cents to $92.10 a barrel. Brent North Sea crude for delivery in December fell 80 cents to $112.42 a barrel in London trade. China reported Th ... read more


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