Remove odor and methane from manure

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A vibratory membrane filtration system currently in use in Asia and Europe — primarily in the swine industry, but beginning to appear on dairies — offers an opportunity to remove ammonia, methane and other substances from manure. The system incorporates polymeric-reverse-osmosis membranes and water separation as part of a manure-handling and treatment system.

Studies indicate that the filtration system, with acidification of hog manure, can result in 95 percent less ammonia. The water is clean enough to be recycled as animal drinking water. And the concentrated nutrient solids that remain after the process is complete can be used as fertilizer.

Furthermore, several companies are using the technology to recover methane gas from manure and convert it to electrical energy.


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