Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater

<p dir="ltr">The global dependence on fossil fuels continues to contribute to greenhouse gas emissions, driving the search for cleaner energy alternatives like biohydrogen. Dark fermentation has emerged as a promising method for sustainable hydrogen production while simultaneously tr...

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Main Author: Ibrahim Shomope (22928773) (author)
Other Authors: Amaal Abdulraqeb Ali (22928776) (author), Muhammad Tawalbeh (15901018) (author), Amani Al-Othman (9315322) (author), Fares Almomani (12585685) (author)
Published: 2025
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author Ibrahim Shomope (22928773)
author2 Amaal Abdulraqeb Ali (22928776)
Muhammad Tawalbeh (15901018)
Amani Al-Othman (9315322)
Fares Almomani (12585685)
author2_role author
author
author
author
author_facet Ibrahim Shomope (22928773)
Amaal Abdulraqeb Ali (22928776)
Muhammad Tawalbeh (15901018)
Amani Al-Othman (9315322)
Fares Almomani (12585685)
author_role author
dc.creator.none.fl_str_mv Ibrahim Shomope (22928773)
Amaal Abdulraqeb Ali (22928776)
Muhammad Tawalbeh (15901018)
Amani Al-Othman (9315322)
Fares Almomani (12585685)
dc.date.none.fl_str_mv 2025-07-31T09:00:00Z
dc.identifier.none.fl_str_mv 10.1016/j.ijhydene.2025.150646
dc.relation.none.fl_str_mv https://figshare.com/articles/journal_contribution/Exploring_machine_learning_approaches_for_biohydrogen_production_through_dark_fermentation_in_wastewater/30971545
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Engineering
Environmental engineering
Environmental sciences
Environmental biotechnology
Information and computing sciences
Machine learning
Biohydrogen
Dark fermentation
Wastewater treatment
Machine learning
dc.title.none.fl_str_mv Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
dc.type.none.fl_str_mv Text
Journal contribution
info:eu-repo/semantics/publishedVersion
text
contribution to journal
description <p dir="ltr">The global dependence on fossil fuels continues to contribute to greenhouse gas emissions, driving the search for cleaner energy alternatives like biohydrogen. Dark fermentation has emerged as a promising method for sustainable hydrogen production while simultaneously treating wastewater. However, optimizing biohydrogen yields remains challenging due to the complexity of biological interactions and environmental factors. Machine learning (ML) offers a data-driven approach to predict and enhance hydrogen production efficiency. In this review, recent studies employing ML techniques are systematically analyzed to evaluate their role in modeling and optimizing biohydrogen generation through dark fermentation. This review examines various ML models, including artificial neural networks, support vector machines, decision trees, and gradient boosting techniques, for their effectiveness in optimizing fermentation conditions. Unlike traditional models like Monod kinetics, the anaerobic digestion model no.1 (ADM1), and response surface methodology (RSM), which are limited by fixed input ranges, results indicate that ML models outperform traditional statistical methods, with CatBoost achieving an R<sup>2</sup> of 0.98 and SVM reaching 0.988. Key influencing factors include chemical oxygen demand, nickel concentration, and butyrate levels. Furthermore, the review also highlights methodological gaps, prioritization of lifecycle assessments and cost-benefit analyses, and also provides insights into the future integration of ML with experimental workflows. While ML-driven optimization has significantly improved hydrogen yields, further research is required to refine models, expand datasets, and improve scalability for industrial applications.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: International Journal of Hydrogen Energy<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ijhydene.2025.150646" target="_blank">https://dx.doi.org/10.1016/j.ijhydene.2025.150646</a></p>
eu_rights_str_mv openAccess
id Manara2_6696e900655a88ae9290523ef55f08aa
identifier_str_mv 10.1016/j.ijhydene.2025.150646
network_acronym_str Manara2
network_name_str Manara2
oai_identifier_str oai:figshare.com:article/30971545
publishDate 2025
repository.mail.fl_str_mv
repository.name.fl_str_mv
repository_id_str
rights_invalid_str_mv CC BY 4.0
spelling Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewaterIbrahim Shomope (22928773)Amaal Abdulraqeb Ali (22928776)Muhammad Tawalbeh (15901018)Amani Al-Othman (9315322)Fares Almomani (12585685)EngineeringEnvironmental engineeringEnvironmental sciencesEnvironmental biotechnologyInformation and computing sciencesMachine learningBiohydrogenDark fermentationWastewater treatmentMachine learning<p dir="ltr">The global dependence on fossil fuels continues to contribute to greenhouse gas emissions, driving the search for cleaner energy alternatives like biohydrogen. Dark fermentation has emerged as a promising method for sustainable hydrogen production while simultaneously treating wastewater. However, optimizing biohydrogen yields remains challenging due to the complexity of biological interactions and environmental factors. Machine learning (ML) offers a data-driven approach to predict and enhance hydrogen production efficiency. In this review, recent studies employing ML techniques are systematically analyzed to evaluate their role in modeling and optimizing biohydrogen generation through dark fermentation. This review examines various ML models, including artificial neural networks, support vector machines, decision trees, and gradient boosting techniques, for their effectiveness in optimizing fermentation conditions. Unlike traditional models like Monod kinetics, the anaerobic digestion model no.1 (ADM1), and response surface methodology (RSM), which are limited by fixed input ranges, results indicate that ML models outperform traditional statistical methods, with CatBoost achieving an R<sup>2</sup> of 0.98 and SVM reaching 0.988. Key influencing factors include chemical oxygen demand, nickel concentration, and butyrate levels. Furthermore, the review also highlights methodological gaps, prioritization of lifecycle assessments and cost-benefit analyses, and also provides insights into the future integration of ML with experimental workflows. While ML-driven optimization has significantly improved hydrogen yields, further research is required to refine models, expand datasets, and improve scalability for industrial applications.</p><h2 dir="ltr">Other Information</h2><p dir="ltr">Published in: International Journal of Hydrogen Energy<br>License: <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">http://creativecommons.org/licenses/by/4.0/</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1016/j.ijhydene.2025.150646" target="_blank">https://dx.doi.org/10.1016/j.ijhydene.2025.150646</a></p>2025-07-31T09:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1016/j.ijhydene.2025.150646https://figshare.com/articles/journal_contribution/Exploring_machine_learning_approaches_for_biohydrogen_production_through_dark_fermentation_in_wastewater/30971545CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/309715452025-07-31T09:00:00Z
spellingShingle Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
Ibrahim Shomope (22928773)
Engineering
Environmental engineering
Environmental sciences
Environmental biotechnology
Information and computing sciences
Machine learning
Biohydrogen
Dark fermentation
Wastewater treatment
Machine learning
status_str publishedVersion
title Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
title_full Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
title_fullStr Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
title_full_unstemmed Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
title_short Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
title_sort Exploring machine learning approaches for biohydrogen production through dark fermentation in wastewater
topic Engineering
Environmental engineering
Environmental sciences
Environmental biotechnology
Information and computing sciences
Machine learning
Biohydrogen
Dark fermentation
Wastewater treatment
Machine learning