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Fermentation
Special Issues
Biogas and Biochemical Production from Anaerobic Digestion
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Biogas and Biochemical Production from Anaerobic Digestion

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Industrial Fermentation".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 2023

Special Issue Editor

Prof. Dr. Giulia Bozzano

E-Mail Website
Guest Editor
Politecnico di Milano, Piazza Leonardo da Vinci, 32, 20133 Milan, Italy
Interests: anaerobic digestion; modeling; transport phenomena; kinetics

Special Issue Information

Dear Colleagues,

The growing attention regarding a more sustainable future, and thus into energy-recovery and waste-reduction technologies, has intensified the interest in processes that allow the exploitation of waste and biomasses to generate energy, such as anaerobic digestion (AD). Improving the efficiency of this industrial application is crucial for increasing methane production, and is essential from an economic, environmental, and safety point of view. Countless biochemical reactions lead to substrate degradation and biogas development. Despite the fact that AD has been used for many years, its study from an engineering perspective is quite recent. For these reasons, we have decided to publish this Special Issue, titled “Biogas and Biochemical Production from Anaerobic Digestion”, including all the recent research findings and developments in this field. The subject of this Special Issue includes those works that use agri-food wastes and waste in general as raw material for biogas production through anaerobic digestion, aiming to bring together research works falling under, yet not limited to, the following topics: anaerobic digestion, biomethane, and biochemical production from biogas.

Prof. Dr. Giulia Bozzano
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fermentation is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2100 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • anaerobic digestion modeling
  • bio-methane production
  • bio-methanol production
  • bio-chemical production
  • anaerobic digestion optimization
  • feedstock blending for bio-methane optimization

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

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Research

13 pages, 2278 KiB  
Article
Potential of Cation Exchange Resin as a Carrier for Anaerobic Consortia in Biohydrogen Fermentation
by Hui Geng, Ying Xu, Rui Liu, Dianhai Yang and Xiaohu Dai
Fermentation 2024, 10(8), 391; https://doi.org/10.3390/fermentation10080391 - 30 Jul 2024
Viewed by 395
Abstract
Cation exchange resin (CER) has been reported to promote sludge fermentation. However, previous studies have typically focused on the effects of CER on sludge properties to enhance fermentation, and the role of CER as a biocarrier for anaerobic consortia during fermentation has been [...] Read more.
Cation exchange resin (CER) has been reported to promote sludge fermentation. However, previous studies have typically focused on the effects of CER on sludge properties to enhance fermentation, and the role of CER as a biocarrier for anaerobic consortia during fermentation has been overlooked. Thus, in this study, the potential of gel-type and macro-reticular type CERs to serve as biocarriers in fermentation was investigated. A significant number of anaerobes appeared to be attached to the surfaces of CER during 2-day fermentation. However, an extended fermentation time negatively affected the attachment of anaerobic consortia, suggesting that CER may be a suitable carrier for short-term fermentation processes, such as biohydrogen fermentation. Electrochemical analyses revealed that the electron transfer capacities of CER with attached anaerobes were enhanced after both 2-day and 28-day fermentation periods, with the macro-reticular type CER exhibiting higher electron transfer capacity than the gel-type CER. Fermentation experiments using mixing model substrates with macro-reticular and gel-type CERs with attached anaerobes showed that the macro-reticular type CER was more beneficial for biohydrogen fermentation than the gel-type CER. Further analyses of microbial communities revealed that hydrogen-producing bacteria (i.e., Caloramator, unclassified_f_Caloramatoraceace, and Sporanaerobacter) were more likely to adhere to the macro-reticular type CERs. This outcome confirmed that macro-reticular type CERs have significant potential as a carrier for anaerobic consortia to promote the generation of hydrogen and volatile fatty acids. These findings are expected to provide a reference for using materials as biocarriers to enhance the biohydrogen fermentation of sludge. Full article
(This article belongs to the Special Issue Biogas and Biochemical Production from Anaerobic Digestion)
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32 pages, 3519 KiB  
Article
Prefeasibility Analysis of Different Anaerobic Digestion Upgrading Pathways Using Organic Kitchen Food Waste as Raw Material
by Tatiana Agudelo-Patiño, Mariana Ortiz-Sánchez and Carlos Ariel Cardona Alzate
Fermentation 2024, 10(6), 300; https://doi.org/10.3390/fermentation10060300 - 5 Jun 2024
Viewed by 674
Abstract
Anaerobic digestion (AD) is a widely applied technology for renewable energy generation using biogas as energy vector. The existing microbial consortium in this technology allows for the use of several types of biomass as substrates. A promising alternative for the production of high-value [...] Read more.
Anaerobic digestion (AD) is a widely applied technology for renewable energy generation using biogas as energy vector. The existing microbial consortium in this technology allows for the use of several types of biomass as substrates. A promising alternative for the production of high-value products (e.g., mixed volatile fatty acids–VFAs, hydrogen) is the use of modified AD. There are several techniques to achieve this objective by modifying the operating conditions of the process. The literature has described the best AD routes for generating renewable energy or high-value products based on specific substrate types and operating conditions. Few studies have reported the integral fraction valorization of the AD process applying the biorefinery concept. This article provides an analysis of the different routes that favor the production of energy carriers and high-value products involving key issues related to operating conditions and substrates. Moreover, AD is addressed through the biorefinery concept. Finally, a case study is presented where renewable energy and mixed VFAs are generated by applying the biorefinery concept in a number of proposed scenarios using organic kitchen food waste (OKFW) as feedstock. The case study involves an experimental and simulation stage. Then, the economic feasibility of the proposed scenarios is evaluated. In conclusion, AD is a promising and economically feasible technology to produce valuable products from several types of waste materials. Full article
(This article belongs to the Special Issue Biogas and Biochemical Production from Anaerobic Digestion)
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