Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion

Enzymatic hydrolysis is recognised as an effective pre-treatment for increasing biodegradability of sludge. In this work, isolated commercial enzymes as well as in-situ enzymes producer bacteria were used respectively as enhancers and pre-treatments of sewage sludge. Biodegradability of sample as we...

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Autores: Agabo García, Cristina, Pérez, Montserrat, Rodríguez Morgado, Bruno, Parrado Rubio, Juan, Solera, Rosario
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/140918
Acceso en línea:https://hdl.handle.net/11441/140918
https://doi.org/10.1016/j.fuel.2019.115713
Access Level:acceso abierto
Palabra clave:Sewage sludge
Anaerobic digestion enhancer
Sewage sludge fermentation
Enzymatic pre-treatment
BMP
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spelling Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestionAgabo García, CristinaPérez, MontserratRodríguez Morgado, BrunoParrado Rubio, JuanSolera, RosarioSewage sludgeAnaerobic digestion enhancerSewage sludge fermentationEnzymatic pre-treatmentBMPEnzymatic hydrolysis is recognised as an effective pre-treatment for increasing biodegradability of sludge. In this work, isolated commercial enzymes as well as in-situ enzymes producer bacteria were used respectively as enhancers and pre-treatments of sewage sludge. Biodegradability of sample as well as biomethane potential production were studied. Results showed that depuration efficiencies in terms of CODs (73.5–85.5%) and TVS (28.5–42.7%) were more than twice the control value. In addition, pre-treated samples as well as enhanced samples with enzymes generated more biomethane than control. The optimal ones, were those with the isolated proteases (P) and with bacteria (Bacillus licheniformis) treatment in-situ (F), producing a total volume of 72.4 ± 2.62 ml CH4 and 114 ml ± 0.46 CH4, respectively, increasing the biogas volume in 3.65 and 5.77 times respectively compared with control.España MICINN [Grant number CTM-2015-64810R]2020 European Horizon research and innovation programme “Water2Return” [grant number 73098]ElsevierBioquímica y Biología MolecularMinisterio de Ciencia e Innovación (MICIN). EspañaEuropean Union (UE). H20202019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/140918https://doi.org/10.1016/j.fuel.2019.115713reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésCTM-2015-64810Rgrant number 73098https://doi.org/10.1016/j.fuel.2019.115713info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1409182026-06-17T12:51:07Z
dc.title.none.fl_str_mv Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
title Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
spellingShingle Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
Agabo García, Cristina
Sewage sludge
Anaerobic digestion enhancer
Sewage sludge fermentation
Enzymatic pre-treatment
BMP
title_short Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
title_full Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
title_fullStr Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
title_full_unstemmed Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
title_sort Biomethane production improvement by enzymatic pre-treatments and enhancers of sewage sludge anaerobic digestion
dc.creator.none.fl_str_mv Agabo García, Cristina
Pérez, Montserrat
Rodríguez Morgado, Bruno
Parrado Rubio, Juan
Solera, Rosario
author Agabo García, Cristina
author_facet Agabo García, Cristina
Pérez, Montserrat
Rodríguez Morgado, Bruno
Parrado Rubio, Juan
Solera, Rosario
author_role author
author2 Pérez, Montserrat
Rodríguez Morgado, Bruno
Parrado Rubio, Juan
Solera, Rosario
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Bioquímica y Biología Molecular
Ministerio de Ciencia e Innovación (MICIN). España
European Union (UE). H2020
dc.subject.none.fl_str_mv Sewage sludge
Anaerobic digestion enhancer
Sewage sludge fermentation
Enzymatic pre-treatment
BMP
topic Sewage sludge
Anaerobic digestion enhancer
Sewage sludge fermentation
Enzymatic pre-treatment
BMP
description Enzymatic hydrolysis is recognised as an effective pre-treatment for increasing biodegradability of sludge. In this work, isolated commercial enzymes as well as in-situ enzymes producer bacteria were used respectively as enhancers and pre-treatments of sewage sludge. Biodegradability of sample as well as biomethane potential production were studied. Results showed that depuration efficiencies in terms of CODs (73.5–85.5%) and TVS (28.5–42.7%) were more than twice the control value. In addition, pre-treated samples as well as enhanced samples with enzymes generated more biomethane than control. The optimal ones, were those with the isolated proteases (P) and with bacteria (Bacillus licheniformis) treatment in-situ (F), producing a total volume of 72.4 ± 2.62 ml CH4 and 114 ml ± 0.46 CH4, respectively, increasing the biogas volume in 3.65 and 5.77 times respectively compared with control.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/140918
https://doi.org/10.1016/j.fuel.2019.115713
url https://hdl.handle.net/11441/140918
https://doi.org/10.1016/j.fuel.2019.115713
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv CTM-2015-64810R
grant number 73098
https://doi.org/10.1016/j.fuel.2019.115713
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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