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Title	Swine manure treatment technologies as drivers for circular economy in agribusiness: A techno-economic and life cycle assessment approach
ID_Doc	22005
Authors	Hollas, CE; Rodrigues, HC; Bolsan, AC; Venturin, B; Bortoli, M; Antes, FG; Steinmetz, RLR; Kunz, A
Title	Swine manure treatment technologies as drivers for circular economy in agribusiness: A techno-economic and life cycle assessment approach
Year	2023
Published
Abstract	Anaerobic digestion has been employed as a technology capable of adding value to waste coupled with environmental impact mitigation. However, many issues need to be elucidated to ensure the systems viability based on this technol-ogy. In this sense, the present study evaluated technically, environmentally, and economically, four configurations of swine waste treatment systems focused on the promotion of decarbonization and circularity of the swine chain. For this, a reference plant, based on a compact treatment process named SISTRATES (R) (Portuguese acronym for swine ef-fluent treatment system) was adopted to serve as a model for comparison and validation. The results showed the im-portance of prioritization of the energy recuperation routes through anaerobic digestion, providing increased economic benefits and minimizing environmental damage. Thus, the SISTRATES (R) configuration was the one that pre-sented the best designs in a circular context, maximizing the recovery of energy and nutrients, along with the reduction of greenhouse gas emissions, ensuring the sustainability of the pig production chain.
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