Towards energy neutral microalgae-based wastewater treatment plants
The aim of this study was to assess the energy balance of a hypothetical microalgae-based wastewater treatment plant (10,000 PE) located in the Mediterranean Region, where harvested microalgal biomass and primary sludge would be co-digested to produce biogas and bioenergy. The assessment was based o...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2017 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/112489 |
| Acceso en línea: | https://hdl.handle.net/2117/112489 https://dx.doi.org/10.1016/j.algal.2017.11.006 |
| Access Level: | acceso abierto |
| Palabra clave: | Biogas Wastewater treatment and reuse Anaerobic co-digestion Energy balance High rate algal pond Microalgal biomass Wastewater Biogàs Aigües residuals -- Aprofitament -- Plantes de tractament Àrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
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Towards energy neutral microalgae-based wastewater treatment plantsPassos, Fabiana Lopes del Rei|||0000-0001-7501-988XGutiérrez Martínez, RaquelUggetti, Enrica|||0000-0001-6919-485XGarfi, Marianna|||0000-0001-9234-5580García Serrano, Joan|||0000-0003-1258-8174Ferrer Martí, Ivet|||0000-0002-4568-4843BiogasWastewater treatment and reuseAnaerobic co-digestionEnergy balanceHigh rate algal pondMicroalgal biomassWastewaterBiogàsAigües residuals -- Aprofitament -- Plantes de tractamentÀrees temàtiques de la UPC::Energies::Recursos energètics renovables::BiogàsÀrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aiguaThe aim of this study was to assess the energy balance of a hypothetical microalgae-based wastewater treatment plant (10,000 PE) located in the Mediterranean Region, where harvested microalgal biomass and primary sludge would be co-digested to produce biogas and bioenergy. The assessment was based on experimental results obtained over one year in pilot high rate algal ponds followed by anaerobic digesters for biogas production from harvested microalgal biomass and primary sludge. The energy balance compared four scenarios: 1) anaerobic co-digestion of microalgal biomass and primary sludge, and cogeneration from biogas in a combined with heat and power (CHP) unit; 2) co-digestion with thermal pretreatment of microalgal biomass, and cogeneration from biogas in a CHP unit; 3) co-digestion and heat generation from biogas in a boiler; and 4) co-digestion with thermal pretreatment of microalgal biomass, and heat generation from biogas in a boiler. According to the results, when biogas was used to cogenerate electricity and heat (scenarios 1 and 2), the electricity balance was always positive, and the best results were obtained with pretreated microalgal biomass (scenario 2). Similarly, the heat balance was always positive when biomass was thermally pretreated (scenario 2). On the other hand, when biogas was only used to produce heat (scenarios 3 and 4), heat requirements were covered during the whole year. The sensibility analysis of the scenarios with pretreatment (2 and 4) confirmed that the microalgae-based WWTP would be energy neutral or even net energy producer.Peer ReviewedElsevier20172017-12-0120182018-01-09journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/112489https://dx.doi.org/10.1016/j.algal.2017.11.006reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1124892026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
Towards energy neutral microalgae-based wastewater treatment plants |
| title |
Towards energy neutral microalgae-based wastewater treatment plants |
| spellingShingle |
Towards energy neutral microalgae-based wastewater treatment plants Passos, Fabiana Lopes del Rei|||0000-0001-7501-988X Biogas Wastewater treatment and reuse Anaerobic co-digestion Energy balance High rate algal pond Microalgal biomass Wastewater Biogàs Aigües residuals -- Aprofitament -- Plantes de tractament Àrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
| title_short |
Towards energy neutral microalgae-based wastewater treatment plants |
| title_full |
Towards energy neutral microalgae-based wastewater treatment plants |
| title_fullStr |
Towards energy neutral microalgae-based wastewater treatment plants |
| title_full_unstemmed |
Towards energy neutral microalgae-based wastewater treatment plants |
| title_sort |
Towards energy neutral microalgae-based wastewater treatment plants |
| dc.creator.none.fl_str_mv |
Passos, Fabiana Lopes del Rei|||0000-0001-7501-988X Gutiérrez Martínez, Raquel Uggetti, Enrica|||0000-0001-6919-485X Garfi, Marianna|||0000-0001-9234-5580 García Serrano, Joan|||0000-0003-1258-8174 Ferrer Martí, Ivet|||0000-0002-4568-4843 |
| author |
Passos, Fabiana Lopes del Rei|||0000-0001-7501-988X |
| author_facet |
Passos, Fabiana Lopes del Rei|||0000-0001-7501-988X Gutiérrez Martínez, Raquel Uggetti, Enrica|||0000-0001-6919-485X Garfi, Marianna|||0000-0001-9234-5580 García Serrano, Joan|||0000-0003-1258-8174 Ferrer Martí, Ivet|||0000-0002-4568-4843 |
| author_role |
author |
| author2 |
Gutiérrez Martínez, Raquel Uggetti, Enrica|||0000-0001-6919-485X Garfi, Marianna|||0000-0001-9234-5580 García Serrano, Joan|||0000-0003-1258-8174 Ferrer Martí, Ivet|||0000-0002-4568-4843 |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Biogas Wastewater treatment and reuse Anaerobic co-digestion Energy balance High rate algal pond Microalgal biomass Wastewater Biogàs Aigües residuals -- Aprofitament -- Plantes de tractament Àrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
| topic |
Biogas Wastewater treatment and reuse Anaerobic co-digestion Energy balance High rate algal pond Microalgal biomass Wastewater Biogàs Aigües residuals -- Aprofitament -- Plantes de tractament Àrees temàtiques de la UPC::Energies::Recursos energètics renovables::Biogàs Àrees temàtiques de la UPC::Desenvolupament humà i sostenible::Enginyeria ambiental::Tractament de l'aigua |
| description |
The aim of this study was to assess the energy balance of a hypothetical microalgae-based wastewater treatment plant (10,000 PE) located in the Mediterranean Region, where harvested microalgal biomass and primary sludge would be co-digested to produce biogas and bioenergy. The assessment was based on experimental results obtained over one year in pilot high rate algal ponds followed by anaerobic digesters for biogas production from harvested microalgal biomass and primary sludge. The energy balance compared four scenarios: 1) anaerobic co-digestion of microalgal biomass and primary sludge, and cogeneration from biogas in a combined with heat and power (CHP) unit; 2) co-digestion with thermal pretreatment of microalgal biomass, and cogeneration from biogas in a CHP unit; 3) co-digestion and heat generation from biogas in a boiler; and 4) co-digestion with thermal pretreatment of microalgal biomass, and heat generation from biogas in a boiler. According to the results, when biogas was used to cogenerate electricity and heat (scenarios 1 and 2), the electricity balance was always positive, and the best results were obtained with pretreated microalgal biomass (scenario 2). Similarly, the heat balance was always positive when biomass was thermally pretreated (scenario 2). On the other hand, when biogas was only used to produce heat (scenarios 3 and 4), heat requirements were covered during the whole year. The sensibility analysis of the scenarios with pretreatment (2 and 4) confirmed that the microalgae-based WWTP would be energy neutral or even net energy producer. |
| publishDate |
2017 |
| dc.date.none.fl_str_mv |
2017 2017-12-01 2018 2018-01-09 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 AM http://purl.org/coar/version/c_ab4af688f83e57aa |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/112489 https://dx.doi.org/10.1016/j.algal.2017.11.006 |
| url |
https://hdl.handle.net/2117/112489 https://dx.doi.org/10.1016/j.algal.2017.11.006 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
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openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
| publisher.none.fl_str_mv |
Elsevier |
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reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
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Universitat Politècnica de Catalunya (UPC) |
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UPCommons. Portal del coneixement obert de la UPC |
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UPCommons. Portal del coneixement obert de la UPC |
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1869404394649288704 |
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15.300719 |