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Contact: Melissa Osgood
Cornell University

Video of Experiment

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Caption: This video visualizes the effects of hydrofracking flowback fluid on colloid mobilization in unsaturated sand. Included are the injection of the colloids into the sand column at the beginning of the experiment, the deionized water flush at 0.3 ml/min, the flowback water flush at 0.3 ml/min, and the flowback water flush at 1.5 ml/min.

Credit: Cornell University

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Related news release: Fracking flowback could pollute groundwater with heavy metals

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