But how about using it to create natural gas?
That unusual sounding process is soon going to take place in South Sioux City.
A Wisconsin-based green energy company known as Big Ox Energy is building a $45 million dollar bio-energy facility there.The plant will break ground this summer in the Roth Industrial Park.
It will use a special process to treat wastewater, a process that creates natural gas that will be back into the pipeline system.
City officials say this partnership is another step towards becoming more environmentally friendly.
"And I think that we could be one of the greenest communities around. We really think we could be a model for others," said Kelly Flynn, director of economic development. The Big Ox plant will also give South Sioux city and local businesses a sustainable and less expensive way to treat wastewater.
The project is 100 percent privately financed and will create 30 full time jobs when it's done in January of 2016.
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