Founded in 2001 by two graduate students from the Colorado School of Mines, Oberon aims to address the fish-feed problem by serving farmed fish the bacteria used to eat up the excess food in wastewater streams of food-processing plants.

FORBES: Magazine Article

Another method, used mainly in Pennsylvania, is to simply use treatment facilities to clean up the fracking wastewater before it heads into local rivers and streams.

FORBES: 3 Thoughts On The N.Y. Fracking Ban

After taking samples from 21 spots along the coast, researchers expected to find the most caffeine pollution in areas near wastewater treatment plants, large population centers or rivers and streams emptying into the ocean, said Elise Granek, assistant professor of Environmental Science and Management at Portland State.

CNN: Researchers find caffeine in waters off Oregon

For all the attention given to technologies like horizontal drilling and hydraulic fracturing, some of the greatest gains to be made in reducing the environmental risks of natural-gas production come from simple things like the proper pouring of cement well casings and the proper handling of chemicals and wastewater, so that they do not spill or seep into streams or water supplies.

WSJ: Is Natural Gas the Road to a Clean Energy Future?