Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane
Tolypothrix, a self-flocculating, fast growing, CO2 and nitrogen-fixing cyanobacterium, can be cultivated in nutrient-poor ash dam waters of coal-fired power stations, converting CO2 emissions into organic biomass. Therefore, the biomass of Tolypothrix sp. is a promising source for bio-fertiliser pr...
| Autores: | , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universidad Autónoma de Madrid |
| Repositorio: | Biblos-e Archivo. Repositorio Institucional de la UAM |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.uam.es:10486/705933 |
| Acesso em linha: | http://hdl.handle.net/10486/705933 https://dx.doi.org/10.1016/j.chemosphere.2021.131246 |
| Access Level: | acceso abierto |
| Palavra-chave: | Methane Anaerobic Co-Digestion Horizontal Algal Turf Scrubbers Volatile Organics Ash Dam Water Biología y Biomedicina / Biología |
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Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methaneVelu, ChinnathambiKarthikeyan, Obulisamy ParthibaBrinkman, Diane L.Cires Gómez, SamuelHeimann, KirstenMethaneAnaerobic Co-DigestionHorizontal Algal Turf ScrubbersVolatile OrganicsAsh Dam WaterBiología y Biomedicina / BiologíaTolypothrix, a self-flocculating, fast growing, CO2 and nitrogen-fixing cyanobacterium, can be cultivated in nutrient-poor ash dam waters of coal-fired power stations, converting CO2 emissions into organic biomass. Therefore, the biomass of Tolypothrix sp. is a promising source for bio-fertiliser production, providing micro- and macronutrients. Energy requirements for production could potentially be offset via anaerobic digestion (AD) of the produced biomass, which may further improve the efficiency of the resulting biofertilizer. The aim of this study was to evaluate the effectiveness of pre-treatment conditions and subsequent methane (CH4) production of Tolypothrix under out-door cultivation conditions. Pre-treatments on biogas and methane production for Tolypothrix sp. biomass investigated were: (1) thermal at 95 °C for 10 h, (2) hydrothermal by autoclave at 121 °C at 1013.25 hPa for 20 min, using a standard moisture-heat procedure, (3) microwave at an output power of 900 W and an exposure time of 3 min, (4) sonication at an output power of 10 W for 3.5 h at 10 min intervals with 20 s breaks and (5) freeze-thaw cycles at −80 °C for 24 h followed by thawing at room temperature. Thermal, hydrothermal and sonication pre-treatments supported high solubilization of organic compounds up to 24.40 g L−1. However, higher specific CH4 production of 0.012 and 0.01 L CH4 g−1 volatile solidsadded. was achieved for thermal and sonic pre-treatments, respectively. High N- and low C-content of the Tolypothrix biomass affected CH4 recovery, while pre-treatment accelerated production of volatile acids (15.90 g L−1) and ammonia-N-accumulation (1.41 g L−1), leading to poor CH4 yields. Calculated theoretical CH4 yields based on the elemental composition of the biomass were ~55% higher than actual yields. This highlights the complexity of interactions during AD which are not adequately represented by elemental compositionElsevierDepartamento de BiologíaFacultad de Ciencias20212021-06-19research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/705933https://dx.doi.org/10.1016/j.chemosphere.2021.131246reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7059332026-06-23T12:46:27Z |
| dc.title.none.fl_str_mv |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| title |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| spellingShingle |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane Velu, Chinnathambi Methane Anaerobic Co-Digestion Horizontal Algal Turf Scrubbers Volatile Organics Ash Dam Water Biología y Biomedicina / Biología |
| title_short |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| title_full |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| title_fullStr |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| title_full_unstemmed |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| title_sort |
Biomass pre-treatments of the N<inf>2</inf>-fixing cyanobacterium Tolypothrix for co-production of methane |
| dc.creator.none.fl_str_mv |
Velu, Chinnathambi Karthikeyan, Obulisamy Parthiba Brinkman, Diane L. Cires Gómez, Samuel Heimann, Kirsten |
| author |
Velu, Chinnathambi |
| author_facet |
Velu, Chinnathambi Karthikeyan, Obulisamy Parthiba Brinkman, Diane L. Cires Gómez, Samuel Heimann, Kirsten |
| author_role |
author |
| author2 |
Karthikeyan, Obulisamy Parthiba Brinkman, Diane L. Cires Gómez, Samuel Heimann, Kirsten |
| author2_role |
author author author author |
| dc.contributor.none.fl_str_mv |
Departamento de Biología Facultad de Ciencias |
| dc.subject.none.fl_str_mv |
Methane Anaerobic Co-Digestion Horizontal Algal Turf Scrubbers Volatile Organics Ash Dam Water Biología y Biomedicina / Biología |
| topic |
Methane Anaerobic Co-Digestion Horizontal Algal Turf Scrubbers Volatile Organics Ash Dam Water Biología y Biomedicina / Biología |
| description |
Tolypothrix, a self-flocculating, fast growing, CO2 and nitrogen-fixing cyanobacterium, can be cultivated in nutrient-poor ash dam waters of coal-fired power stations, converting CO2 emissions into organic biomass. Therefore, the biomass of Tolypothrix sp. is a promising source for bio-fertiliser production, providing micro- and macronutrients. Energy requirements for production could potentially be offset via anaerobic digestion (AD) of the produced biomass, which may further improve the efficiency of the resulting biofertilizer. The aim of this study was to evaluate the effectiveness of pre-treatment conditions and subsequent methane (CH4) production of Tolypothrix under out-door cultivation conditions. Pre-treatments on biogas and methane production for Tolypothrix sp. biomass investigated were: (1) thermal at 95 °C for 10 h, (2) hydrothermal by autoclave at 121 °C at 1013.25 hPa for 20 min, using a standard moisture-heat procedure, (3) microwave at an output power of 900 W and an exposure time of 3 min, (4) sonication at an output power of 10 W for 3.5 h at 10 min intervals with 20 s breaks and (5) freeze-thaw cycles at −80 °C for 24 h followed by thawing at room temperature. Thermal, hydrothermal and sonication pre-treatments supported high solubilization of organic compounds up to 24.40 g L−1. However, higher specific CH4 production of 0.012 and 0.01 L CH4 g−1 volatile solidsadded. was achieved for thermal and sonic pre-treatments, respectively. High N- and low C-content of the Tolypothrix biomass affected CH4 recovery, while pre-treatment accelerated production of volatile acids (15.90 g L−1) and ammonia-N-accumulation (1.41 g L−1), leading to poor CH4 yields. Calculated theoretical CH4 yields based on the elemental composition of the biomass were ~55% higher than actual yields. This highlights the complexity of interactions during AD which are not adequately represented by elemental composition |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-06-19 |
| dc.type.none.fl_str_mv |
research article http://purl.org/coar/resource_type/c_2df8fbb1 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 |
http://hdl.handle.net/10486/705933 https://dx.doi.org/10.1016/j.chemosphere.2021.131246 |
| url |
http://hdl.handle.net/10486/705933 https://dx.doi.org/10.1016/j.chemosphere.2021.131246 |
| 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 |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Elsevier |
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Elsevier |
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reponame:Biblos-e Archivo. Repositorio Institucional de la UAM instname:Universidad Autónoma de Madrid |
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Universidad Autónoma de Madrid |
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Biblos-e Archivo. Repositorio Institucional de la UAM |
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