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New tracers can identify fracking fluids

Hydraulic fracturing to harvest natural gas has been controversial due in large part to the potential for contamination of ground and surface waters by the pressurized fluids used to force open cracks in deep shale formations and by the so-called flowback fluids that re-emerge at the surface from fracking wells. Now, researchers have developed a geochemical method of tracing fracking fluids in the environment; it’s a tool that could be used to identify hazardous spills in the future and may lead to better use and disposal of fracking wastewater.

01 Feb 2015

Mix of acid mine drainage and fracking fluid a recipe for remediation?

Mixing contaminated wastewater from hydraulic fracturing, also called hydrofracking or fracking, operations with acid mine drainage (AMD) may sound like an ecological disaster in the making. But according to the authors of a new study, such a toxic brew may actually be a recipe for remediation. And, if some hurdles are cleared, researchers say, it could relieve stress on precious freshwater resources by offering companies drilling for natural gas a cheaper alternative to those resources.

21 May 2014

Managing the seismic risk posed by wastewater disposal

From an earthquake perspective, 2011 was a remarkable year. While the devastation accompanying the magnitude-9.0 Tohoku earthquake that occurred off the coast of Japan on March 11 still captures attention worldwide, the relatively stable interior of the U.S. was struck by a somewhat surprising number of small-to-moderate earthquakes that were widely felt. Most of these were natural events, the types of earthquakes that occur from time to time in all intraplate regions.

17 Apr 2012