Biomass Selection Method to Produce Biogas with a Multicriteria Approach
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Biomass Selection Method to Produce Biogas with a Multicriteria Approach Edward Seabra Júnior1 · João Carlos Colmenero1 · Aldo Braghini Junior1 Received: 26 April 2020 / Accepted: 3 September 2020 © Springer Nature B.V. 2020
Abstract The first step in the biogas production process consists of analyzing how biomass alternatives are available in the locality and in the surroundings of the region where the biodigester is installed to make a selection that serves as an input for the system or food. Each biomass has different sources of nutrients, energy potential, chemical composition, processing, and ways of management that require decision making, which will be the option selected. This is often a problem for handlers, to safely decide which will be the best option for their reality. As a way to contribute to the solution of this problem, this study aimed to propose a mathematical method able to list the main criteria for selecting biomass, establishing a ranking ranging from the most preferable to the least preferable one. For the application of the multicriteria mathematical model (AHP–TOPSIS), the biomass of cattle (bovine), pigs (swine), sheep (ovine), chicken and horses (equine) were used as alternatives, taking into account the following criteria: (1) logistics cost, (2) potential for waste production from each herd, (3) the volume of biogas, and (4) energy capacity of each biomass. It was found a ranking for the alternatives and the consistency of the method was tested through sensitivity analysis. Graphic Abstract
Keywords Biomass selection · Biogas · Renewable energy · Multicriteria analysis · Bioenergy
Statement of Novelty This study aimed to provide a method for ordering biomass based on selection criteria. * Edward Seabra Júnior [email protected] 1
Department of Industrial Engineering, Federal University of Technology-Parana (UTFPR), Ponta Grossa, Brazil
A novelty brought by this work consists of a standardized procedure with a mathematical basis that considers those involved in the biomass selection process. The use of this method to select and choose biomass brings an ordered response from a set of determined alternatives, providing information about which one is more or less preferable.
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Introduction Pollution of water and air caused by industrial activity and the high generation of agricultural waste has increased in recent years. Agricultural and agro-industrial activities generate a considerable amount of waste, which has become an environmental problem. These residues are rich in organic matter and can be reused through an efficient solution from biotechnological processes that reduce the organic load of this material by producing biomethane and biofertilizer through digester systems [1–3]. The versatility of the energy matrix in terms of renewable energy is fundamental for the prosperity of any nation. Therefore, when biodigester systems are implemented in developing countries, the benefits for local communities are clear, such as
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