Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence

This study evaluates the performance of different agricultural by-products to identify the potential effect of independent variables, using as the dependent variable the biogas production. A Box–Behnken experimental design was carried out in a pilot-scale plant of four stirred stainless-steel digest...

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Autores principales:	Jhessica Mosquera, Carol Rangel, Jogy Thomas, Angelica Santis, Paola Acevedo, Ivan Cabeza
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	residual biomass Box–Behnken design biogas production potential anaerobic co-digestion life cycle assessment Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/c539705c62e64a3992736609ad11c637
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spelling	oai:doaj.org-article:c539705c62e64a3992736609ad11c6372021-11-25T18:49:59ZBiogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence10.3390/pr91118752227-9717https://doaj.org/article/c539705c62e64a3992736609ad11c6372021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1875https://doaj.org/toc/2227-9717This study evaluates the performance of different agricultural by-products to identify the potential effect of independent variables, using as the dependent variable the biogas production. A Box–Behnken experimental design was carried out in a pilot-scale plant of four stirred stainless-steel digesters under mesophilic semi-continuous digestion. The results obtained support the creation of a technical framework to scale up the process and further evaluation of the potential environmental impacts through life cycle assessment (LCA) methodology. A stable behaviour was achieved in 12 of the 13 experiments proposed. The highest value of daily biogas production was 2200.15 mL day<sup>−1</sup> with a stabilization time of 14 days, an organic loading rate of 4 g VS feed daily, low C/N ratio and a 1:1 relation of nitrogen providers. The concentrations of CH<sub>4</sub> remained stable after the production stabilization and an average biogas composition of 60.6% CH<sub>4</sub>, 40.1% CO<sub>2</sub> and 0.3% O<sub>2</sub> was obtained for the conditions mentioned above. Therefore, the real scale plant was estimated to manage 2.67 tonnes of residual biomass per day, generating 369.69 kWh day<sup>−1</sup> of electricity. The LCA analysis confirms that the co-digestion process evaluated is a feasible and environmentally sustainable option for the diversification of the Colombian energy matrix and the development of the agro-industrial sector.Jhessica MosqueraCarol RangelJogy ThomasAngelica SantisPaola AcevedoIvan CabezaMDPI AGarticleresidual biomassBox–Behnken designbiogas production potentialanaerobic co-digestionlife cycle assessmentChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1875, p 1875 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	residual biomass Box–Behnken design biogas production potential anaerobic co-digestion life cycle assessment Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	residual biomass Box–Behnken design biogas production potential anaerobic co-digestion life cycle assessment Chemical technology TP1-1185 Chemistry QD1-999 Jhessica Mosquera Carol Rangel Jogy Thomas Angelica Santis Paola Acevedo Ivan Cabeza Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
description	This study evaluates the performance of different agricultural by-products to identify the potential effect of independent variables, using as the dependent variable the biogas production. A Box–Behnken experimental design was carried out in a pilot-scale plant of four stirred stainless-steel digesters under mesophilic semi-continuous digestion. The results obtained support the creation of a technical framework to scale up the process and further evaluation of the potential environmental impacts through life cycle assessment (LCA) methodology. A stable behaviour was achieved in 12 of the 13 experiments proposed. The highest value of daily biogas production was 2200.15 mL day<sup>−1</sup> with a stabilization time of 14 days, an organic loading rate of 4 g VS feed daily, low C/N ratio and a 1:1 relation of nitrogen providers. The concentrations of CH<sub>4</sub> remained stable after the production stabilization and an average biogas composition of 60.6% CH<sub>4</sub>, 40.1% CO<sub>2</sub> and 0.3% O<sub>2</sub> was obtained for the conditions mentioned above. Therefore, the real scale plant was estimated to manage 2.67 tonnes of residual biomass per day, generating 369.69 kWh day<sup>−1</sup> of electricity. The LCA analysis confirms that the co-digestion process evaluated is a feasible and environmentally sustainable option for the diversification of the Colombian energy matrix and the development of the agro-industrial sector.
format	article
author	Jhessica Mosquera Carol Rangel Jogy Thomas Angelica Santis Paola Acevedo Ivan Cabeza
author_facet	Jhessica Mosquera Carol Rangel Jogy Thomas Angelica Santis Paola Acevedo Ivan Cabeza
author_sort	Jhessica Mosquera
title	Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
title_short	Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
title_full	Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
title_fullStr	Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
title_full_unstemmed	Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence
title_sort	biogas production by pilot-scale anaerobic co-digestion and life cycle assessment using a real scale scenario: independent parameters and co-substrates influence
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/c539705c62e64a3992736609ad11c637
work_keys_str_mv	AT jhessicamosquera biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence AT carolrangel biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence AT jogythomas biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence AT angelicasantis biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence AT paolaacevedo biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence AT ivancabeza biogasproductionbypilotscaleanaerobiccodigestionandlifecycleassessmentusingarealscalescenarioindependentparametersandcosubstratesinfluence
_version_	1718410676325580800

Biogas Production by Pilot-Scale Anaerobic Co-Digestion and Life Cycle Assessment Using a Real Scale Scenario: Independent Parameters and Co-Substrates Influence

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