SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2019 |
| Outros Autores: | , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Revista de Gestão Ambiental e Sustentabilidade - GeAS |
| Texto Completo: | https://periodicos.uninove.br/geas/article/view/15780 |
Resumo: | Biogas is an important renewable source of energy, which converts organic material into energy. Lignocellulosic biomass emerges as a strategy to increase biogas production through pre-treatments that provide organic matter to the anaerobic environment. Among the chemical pre-treatments available, the alkaline is the most used one because it presents the highest yield in biogas production. However, the effluent (black liquor) it generates is an alkaline byproduct that, if disposed irregularly, can cause environmental problems. In this context, the objective of the present study is to present the methodology employed to evaluate the effect of alkaline pre-treatment with potassium hydroxide solution (KOH) applied to garden waste in the production of biogas and the reuse of black liquor as a new alkaline medium. The pre-treatment was divided into seven subsequent batches, with the first batch consisting of a 5% KOH solution and dry and crushed substrate (garden pruning waste). For the other batch the black liquor from the liquid fraction of the separation process was reused. The Biochemical Methane Potential (BMP) tests were carried out with the fraction sifted in mesophilic conditions (35° C) for 25 days, following the German standard VDI 4630. The results showed that the second batch had the highest biogas production (620 LN biogas/VS-1 kg) and an efficiency of 30% when compared to the non-pretreated substrate. A positive effect was also observed in the biogas yield after reusing the black liquor twice, presenting an average efficiency of 20%. In this sense, this study demonstrates that the reuse of the remaining black liquor from pre-treatment with KOH is a viable and sustainable technique for pre-treatment of garden waste and contributes to the reduction of costs in real scale. |
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SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGASSUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGASSUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGASMethodologySustainabilityBiogasMethaneLigninLignocellulose.MetodologiaSostenebilidadBiogásMatanoLigninaLignocelulosa.MetodologiaSustentabilidadeBiogásMetanoLigninaLignocelulose.Biogas is an important renewable source of energy, which converts organic material into energy. Lignocellulosic biomass emerges as a strategy to increase biogas production through pre-treatments that provide organic matter to the anaerobic environment. Among the chemical pre-treatments available, the alkaline is the most used one because it presents the highest yield in biogas production. However, the effluent (black liquor) it generates is an alkaline byproduct that, if disposed irregularly, can cause environmental problems. In this context, the objective of the present study is to present the methodology employed to evaluate the effect of alkaline pre-treatment with potassium hydroxide solution (KOH) applied to garden waste in the production of biogas and the reuse of black liquor as a new alkaline medium. The pre-treatment was divided into seven subsequent batches, with the first batch consisting of a 5% KOH solution and dry and crushed substrate (garden pruning waste). For the other batch the black liquor from the liquid fraction of the separation process was reused. The Biochemical Methane Potential (BMP) tests were carried out with the fraction sifted in mesophilic conditions (35° C) for 25 days, following the German standard VDI 4630. The results showed that the second batch had the highest biogas production (620 LN biogas/VS-1 kg) and an efficiency of 30% when compared to the non-pretreated substrate. A positive effect was also observed in the biogas yield after reusing the black liquor twice, presenting an average efficiency of 20%. In this sense, this study demonstrates that the reuse of the remaining black liquor from pre-treatment with KOH is a viable and sustainable technique for pre-treatment of garden waste and contributes to the reduction of costs in real scale.El biogás es una importante fuente renovable de energía, que convierte el material orgánico en energía. La biomasa lignocelulósica surge como una estrategia para aumentar la producción de biogás a través de pretratamientos que proporcionan materia orgánica al ambiente anaeróbico. Entre los pretratamientos químicos disponibles, el alcalino es el más utilizado porque presenta el mayor rendimiento en la producción de biogás. Sin embargo, el efluente (licor negro) que genera es un subproducto alcalino que, si se elimina de manera irregular, puede causar problemas ambientales. En este contexto, el objetivo del presente estudio es presentar la metodología empleada para evaluar el efecto del pretratamiento alcalino con solución de hidróxido de potasio (KOH) aplicado a los desechos del jardín en la producción de biogás y la reutilización del licor negro como un nuevo medio alcalino. El pretratamiento se dividió en siete lotes subsiguientes, y el primer lote consistió en una solución de KOH al 5% y sustrato seco y triturado (residuos de poda de jardín). Para los demás lotes, el licor negro de la fracción líquida del proceso de separación se reutilizó. Las pruebas de Potencial Bioquímico de Metano (PBM) se llevaron a cabo con la fracción tamizada en condiciones mesofílicas (35°C) durante 25 días, siguiendo la norma alemana VDI 4630. Los resultados mostraron que el segundo lote tenía la mayor producción de biogás (620 LN biogas/SV-1 kg) y una eficiencia del 30% en comparación con el sustrato no pretratado. También se observó un efecto positivo en el rendimiento de biogás después de reutilizar el licor negro dos veces, presentando una eficiencia promedio del 20%. En este sentido, este estudio demuestra que la reutilización del licor negro restante del pretratamiento con KOH es una técnica viable y sostenible para el pretratamiento de los desechos del jardín y contribuye a la reducción de costos a escala real. O biogás é uma importante fonte renovável de energia, que converte material orgânico em energia. A biomassa lignocelulósica surge como uma estratégia para aumentar a produção de biogás através de pré-tratamentos que fornecem matéria orgânica ao ambiente anaeróbio. Entre os pré-tratamentos químicos disponíveis, o alcalino é o mais utilizado, pois apresenta o maior rendimento na produção de biogás. No entanto, o efluente gerado (licor negro) é um subproduto alcalino que, se descartado irregularmente, pode causar problemas ambientais. Nesse contexto, o objetivo do presente estudo é apresentar a metodologia empregada para avaliar o efeito do pré-tratamento alcalino com solução de hidróxido de potássio (KOH) aplicado a resíduos de jardim na produção de biogás e a reutilização de licor negro como novo meio alcalino. O pré-tratamento foi dividido em sete bateladas subsequentes, com a primeira batelada composta por uma solução de KOH a 5% e substrato seco e triturado (resíduo de poda de jardim). Para as demais bateladas, o licor negro da fração líquida do processo de separação foi reutilizado. Os testes de Potencial Bioquímico de Metano (PBM) foram realizados com a fração peneirada em condições mesofílicas (35°C) por 25 dias, seguindo a norma alemã VDI 4630. Os resultados mostraram que a segunda batelada teve a maior produção de biogás (620 LN biogas/SV-1 kg) e uma eficiência de 30% quando comparado com o substrato não pré-tratado. Efeito positivo também foi observado no rendimento de biogás após a reutilização do licor negro duas vezes, apresentando uma eficiência média de 20%. Nesse sentido, o estudo demonstra que o reuso do licor negro remanescente do pré-tratamento com KOH é uma técnica viável e sustentável para o pré-tratamento de resíduos de jardim e contribui para a redução de custos em escala real.Universidade Nove de Julho - UNINOVE2019-09-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uninove.br/geas/article/view/1578010.5585/geas.v8i3.15780Revista de Gestão Ambiental e Sustentabilidade; v. 8 n. 3 (2019): set./dez.2316-9834reponame:Revista de Gestão Ambiental e Sustentabilidade - GeASinstname:Universidade Nove de Julho (UNINOVE)instacron:UNINOVEenghttps://periodicos.uninove.br/geas/article/view/15780/7820Copyright (c) 2019 Revista de Gestão Ambiental e Sustentabilidadehttps://creativecommons.org/licenses/by-nc-sa/4.0info:eu-repo/semantics/openAccessBastos, Jhenifer AlineRemor, Paula VerônicaLofhagen, Janaina C. P.Hawkins, Christopher A.Edwiges, Thiago2021-10-18T14:06:52Zoai:ojs.periodicos.uninove.br:article/15780Revistahttps://periodicos.uninove.br/geasONGhttps://periodicos.uninove.br/geas/oai||journalgeas@gmail.com2316-98342316-9834opendoar:2021-10-18T14:06:52Revista de Gestão Ambiental e Sustentabilidade - GeAS - Universidade Nove de Julho (UNINOVE)false |
| dc.title.none.fl_str_mv |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| title |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| spellingShingle |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS Bastos, Jhenifer Aline Methodology Sustainability Biogas Methane Lignin Lignocellulose. Metodologia Sostenebilidad Biogás Matano Lignina Lignocelulosa. Metodologia Sustentabilidade Biogás Metano Lignina Lignocelulose. |
| title_short |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| title_full |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| title_fullStr |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| title_full_unstemmed |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| title_sort |
SUSTAINABLE RESEARCH METHODOLOGY ON THE EFFECT OF THE REUSE OF BLACK LIQUOR IN THE ALKALINE PRE-TREATMENT OF GARDEN RESIDUES FOR THE PRODUCTION OF BIOGAS |
| author |
Bastos, Jhenifer Aline |
| author_facet |
Bastos, Jhenifer Aline Remor, Paula Verônica Lofhagen, Janaina C. P. Hawkins, Christopher A. Edwiges, Thiago |
| author_role |
author |
| author2 |
Remor, Paula Verônica Lofhagen, Janaina C. P. Hawkins, Christopher A. Edwiges, Thiago |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Bastos, Jhenifer Aline Remor, Paula Verônica Lofhagen, Janaina C. P. Hawkins, Christopher A. Edwiges, Thiago |
| dc.subject.por.fl_str_mv |
Methodology Sustainability Biogas Methane Lignin Lignocellulose. Metodologia Sostenebilidad Biogás Matano Lignina Lignocelulosa. Metodologia Sustentabilidade Biogás Metano Lignina Lignocelulose. |
| topic |
Methodology Sustainability Biogas Methane Lignin Lignocellulose. Metodologia Sostenebilidad Biogás Matano Lignina Lignocelulosa. Metodologia Sustentabilidade Biogás Metano Lignina Lignocelulose. |
| description |
Biogas is an important renewable source of energy, which converts organic material into energy. Lignocellulosic biomass emerges as a strategy to increase biogas production through pre-treatments that provide organic matter to the anaerobic environment. Among the chemical pre-treatments available, the alkaline is the most used one because it presents the highest yield in biogas production. However, the effluent (black liquor) it generates is an alkaline byproduct that, if disposed irregularly, can cause environmental problems. In this context, the objective of the present study is to present the methodology employed to evaluate the effect of alkaline pre-treatment with potassium hydroxide solution (KOH) applied to garden waste in the production of biogas and the reuse of black liquor as a new alkaline medium. The pre-treatment was divided into seven subsequent batches, with the first batch consisting of a 5% KOH solution and dry and crushed substrate (garden pruning waste). For the other batch the black liquor from the liquid fraction of the separation process was reused. The Biochemical Methane Potential (BMP) tests were carried out with the fraction sifted in mesophilic conditions (35° C) for 25 days, following the German standard VDI 4630. The results showed that the second batch had the highest biogas production (620 LN biogas/VS-1 kg) and an efficiency of 30% when compared to the non-pretreated substrate. A positive effect was also observed in the biogas yield after reusing the black liquor twice, presenting an average efficiency of 20%. In this sense, this study demonstrates that the reuse of the remaining black liquor from pre-treatment with KOH is a viable and sustainable technique for pre-treatment of garden waste and contributes to the reduction of costs in real scale. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019-09-30 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.uri.fl_str_mv |
https://periodicos.uninove.br/geas/article/view/15780 10.5585/geas.v8i3.15780 |
| url |
https://periodicos.uninove.br/geas/article/view/15780 |
| identifier_str_mv |
10.5585/geas.v8i3.15780 |
| dc.language.iso.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
https://periodicos.uninove.br/geas/article/view/15780/7820 |
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Copyright (c) 2019 Revista de Gestão Ambiental e Sustentabilidade https://creativecommons.org/licenses/by-nc-sa/4.0 info:eu-repo/semantics/openAccess |
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Copyright (c) 2019 Revista de Gestão Ambiental e Sustentabilidade https://creativecommons.org/licenses/by-nc-sa/4.0 |
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openAccess |
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application/pdf |
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Universidade Nove de Julho - UNINOVE |
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Universidade Nove de Julho - UNINOVE |
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Revista de Gestão Ambiental e Sustentabilidade; v. 8 n. 3 (2019): set./dez. 2316-9834 reponame:Revista de Gestão Ambiental e Sustentabilidade - GeAS instname:Universidade Nove de Julho (UNINOVE) instacron:UNINOVE |
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