Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review
The agriculture and livestock industry generate waste used in anaerobic digestion to produce biogas containing methane (CH<sub>4</sub>), useful in the generation of electricity and heat. However, although biogas is mainly composed of CH<sub>4</sub> (~65%) and CO<sub>2&l...
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doaj-fe10ff60ba2f468d8db5b07818f781ea2021-03-24T00:06:10ZengMDPI AGProcesses2227-97172021-03-01956756710.3390/pr9030567Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical ReviewEmky Valdebenito-Rolack0Rosario Díaz1Felipe Marín2Daniel Gómez3Felipe Hansen4ProCycla SpA, Camino Fundo El Junco SN, Melipilla 9580000, Región Metropolitana, ChileProCycla SpA, Camino Fundo El Junco SN, Melipilla 9580000, Región Metropolitana, ChileProCycla SpA, Camino Fundo El Junco SN, Melipilla 9580000, Región Metropolitana, ChileProCycla SpA, Camino Fundo El Junco SN, Melipilla 9580000, Región Metropolitana, ChileProCycla SpA, Camino Fundo El Junco SN, Melipilla 9580000, Región Metropolitana, ChileThe agriculture and livestock industry generate waste used in anaerobic digestion to produce biogas containing methane (CH<sub>4</sub>), useful in the generation of electricity and heat. However, although biogas is mainly composed of CH<sub>4</sub> (~65%) and CO<sub>2</sub> (~34%), among the 1% of other compounds present is hydrogen sulphide (H<sub>2</sub>S) which deteriorates engines and power generation fuel cells that use biogas, generating a foul smell and contaminating the environment. As a solution to this, anoxic biofiltration, specifically with biotrickling filters (BTFs), stands out in terms of the elimination of H<sub>2</sub>S as it is cost-effective, efficient, and more environmentally friendly than chemical solutions. Research on the topic is uneven in terms of presenting performance markers, underestimating many microbiological indicators. Research from the last decade was analyzed (2010–2020), demonstrating that only 56% of the reviewed publications did not report microbiological analysis related to sulphur oxidising bacteria (SOB), the most important microbial group in desulphurisation BTFs. This exposes fundamental deficiencies within this type of research and difficulties in comparing performance between research works. In this review, traditional and microbiological performance markers of anoxic biofiltration to remove H<sub>2</sub>S are described. Additionally, an analysis to assess the efficiency of anoxic BTFs for biogas desulphurisation is proposed in order to have a complete and uniform assessment for research in this field.https://www.mdpi.com/2227-9717/9/3/567anoxic biofiltrationhydrogen sulphidedesulphurisationbiotrickling filtrationbiofilter performance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Emky Valdebenito-Rolack Rosario Díaz Felipe Marín Daniel Gómez Felipe Hansen |
spellingShingle |
Emky Valdebenito-Rolack Rosario Díaz Felipe Marín Daniel Gómez Felipe Hansen Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review Processes anoxic biofiltration hydrogen sulphide desulphurisation biotrickling filtration biofilter performance |
author_facet |
Emky Valdebenito-Rolack Rosario Díaz Felipe Marín Daniel Gómez Felipe Hansen |
author_sort |
Emky Valdebenito-Rolack |
title |
Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review |
title_short |
Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review |
title_full |
Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review |
title_fullStr |
Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review |
title_full_unstemmed |
Markers for the Comparison of the Performances of Anoxic Biotrickling Filters in Biogas Desulphurisation: A Critical Review |
title_sort |
markers for the comparison of the performances of anoxic biotrickling filters in biogas desulphurisation: a critical review |
publisher |
MDPI AG |
series |
Processes |
issn |
2227-9717 |
publishDate |
2021-03-01 |
description |
The agriculture and livestock industry generate waste used in anaerobic digestion to produce biogas containing methane (CH<sub>4</sub>), useful in the generation of electricity and heat. However, although biogas is mainly composed of CH<sub>4</sub> (~65%) and CO<sub>2</sub> (~34%), among the 1% of other compounds present is hydrogen sulphide (H<sub>2</sub>S) which deteriorates engines and power generation fuel cells that use biogas, generating a foul smell and contaminating the environment. As a solution to this, anoxic biofiltration, specifically with biotrickling filters (BTFs), stands out in terms of the elimination of H<sub>2</sub>S as it is cost-effective, efficient, and more environmentally friendly than chemical solutions. Research on the topic is uneven in terms of presenting performance markers, underestimating many microbiological indicators. Research from the last decade was analyzed (2010–2020), demonstrating that only 56% of the reviewed publications did not report microbiological analysis related to sulphur oxidising bacteria (SOB), the most important microbial group in desulphurisation BTFs. This exposes fundamental deficiencies within this type of research and difficulties in comparing performance between research works. In this review, traditional and microbiological performance markers of anoxic biofiltration to remove H<sub>2</sub>S are described. Additionally, an analysis to assess the efficiency of anoxic BTFs for biogas desulphurisation is proposed in order to have a complete and uniform assessment for research in this field. |
topic |
anoxic biofiltration hydrogen sulphide desulphurisation biotrickling filtration biofilter performance |
url |
https://www.mdpi.com/2227-9717/9/3/567 |
work_keys_str_mv |
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