Environmental Analysis of Swine Waste Management Technologies Using the Life-Cycle Method

摘要

An important broader environmental profile of swine waste management options is created using life-cycle techniques when compared to the focused criterion of ammonia emissions. In order to utilize the life-cycle approach, mass and energy balances were created for each of four swine waste management technologies. Also, these mass and energy balances were extended to include the entire supply chain of any electricity of chemicals used or generated when managing swine waste. This database enables decision makers to examine hidden benefits or impacts of new technologies for swine waste management.