Co-armazenamento de grama e resíduos de frutas e vegetais como estratégia de pré-tratamento para aumentar a produção de biogás de resíduos lignocelulósicos
One of the energy sources with potential for growth in the Brazilian energy matrix is energy from biomass, specifically biogas.From the production of biogas, waste generates energy and is also stabilized by anaerobic digestion, reducing risks previously offered to the environment.In order to be succ...
| Autor principal: | Herrero, Carolina Bernardino |
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| Formato: | Trabalho de Conclusão de Curso (Graduação) |
| Idioma: | Português |
| Publicado em: |
Universidade Tecnológica Federal do Paraná
2020
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.utfpr.edu.br/jspui/handle/1/12531 |
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| Resumo: |
One of the energy sources with potential for growth in the Brazilian energy matrix is energy from biomass, specifically biogas.From the production of biogas, waste generates energy and is also stabilized by anaerobic digestion, reducing risks previously offered to the environment.In order to be successful in the production of biogas from lignocellulosic substrates, it is necessary to apply pre-treatments that will aid the microorganisms in the breakdown of these structures.The objective of the study was to evaluate the effect of co-storage of grass and fruit and vegetable residues (RFV) on biogas production.The main purpose of pretreatment applied to lignocellulosic substrates is to improve the hydrolysis step, which occurs when there is facilitation of its conversion into fermentable sugars from the cellulose.The pre treatment was applied by varying three gram concentrations to the mass of RFV (1%, 5% and 10%) for each of the two co-storage times proposed (2 days and 7 days). Through the characterization of the substrates, with an overview of a solids content, which makes difficult the operation of the reactors, since the volumetric information systems present an indicative signal of conversion into biogas. Grass samples and RFV can facilitate the operation of biogas plants. In the study it can be observed that proportions of proportions are taken to exercise rights. On the other hand, in the samples that contain less importance of the RFV, the effect of the pre-treatment proved to be efficient, since in this case the derivatives from the RFV could come in contact with all the mass of greater consistency. The best mean volume was the treatment of 7 days of contact with 1% of production, 463.53 LN CH4 kg SV-1 followed by 2 days contact treatment with 1% of grass, with 420.57 LN CH4 kg SV-1. When the contact time of 2 days was increased to a biogas production gain of 10% for these units of grass. The results of the tests were improved at longer contact times, at a concentration of 10%, methane production was better in 2 days: 343.68 LN CH4 kg SV-1 than when compared to the production obtained in 7 days of contact 331.23 LN CH4 kg SV-1. |
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