Odor Control in Liquid Swine and Dairy Manure
نویسندگان
چکیده
In a series of five tests, liquid polyphosphate fertilizer solution was used to treat liquid dairy and swine manure to control odors. Potassium permanganate, a pesticide-wetting agent, nitrogen-zinc liquid fertilizer solution and a digestive deodorant were also used in several of the tests. All tests were evaluated by an odor panel for odor strength and odor quality. The polyphosphates did not control odors in liquid swine or dairy manure when added shortly after spreading or reduce odors significantly when added at regular intervals. Potassium permanganate at concentrations of 300-500 ppm was the most effective compound tested. The pesticide wetting agent also reduced odors.
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