Abstract
LCA study was carried out to compare different treatment methods of livestock excreta in Korea such as aerobic composting and anaerobic digestion. The potential life cycle impact of the aerobic composting process is 3.29E-06pt and anaerobic digestion process is 6.63E-07pt at the level of weighting. The environmental impacts from livestock excreta treatment processes are influenced remarkably by electricity use. And, global worming(57%) and abiotic resource depletion(35%) categories indicates key issues among the overall impacts. In order to assess the environmental impacts and identify key issues of each treatment method for livestock excreta, additional studies is called on to fulfill.
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