Odor control from swine facilities can be achieved by providing an adequate buffer zone or separation distance from neighbors. Such separation distance could be insured if appropriate nutrient balance is done considering the facility size, the type of animal and manure and the wastewater management system. The paper presents examples which include phosphorus and nitrogen nutrient balance consideration and the resulting minimum separation distances that would have to be insured.

This approach consider the nutrient balance in agricultural systems where the manure is used as fertilizer on the land surrounding the swine facilities considering that all the land needed is surrounding the facilities.