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Zeolites filter showing results capturing ammonia, odor

November 16, 2015, Buhl, ID — Preliminary results on the use of a zeolites filter to reduce ammonia and odor emissions from a dairy’s manure flush pit is showing promise in a University of Idaho research project.

Trials on a working, 4,000-cow dairy recorded a 90 percent reduction in ammonia emissions and a 45 percent reduction in odor emissions using a pressurized filter box containing racks of zeolites, minerals mined in Idaho. READ MORE