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Anaerobic Digestion Processes, 2nd Volume
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Faculty of Engineering and Physical Sciences, University of Southampton, Southampton Boldrewood Innovation Campus, Southampton SO16 7QF, UK
School of Engineering, Fraser Noble Building Kings College, University of Aberdeen, Aberdeen AB24 3UE, UK
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Anaerobic Digestion Processes, 2nd Volume

Abstract submission deadline
closed (30 November 2023)
Manuscript submission deadline
closed (31 January 2024)
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2634

Topic Information

Dear Colleagues,

Anaerobic digestion (AD) of biomass and organic waste has important potential for the generation of renewable and sustainable energy. Methane, the desired product from AD, can be used for electricity, heat, and as transport fuel. Although AD has been in commercial use for many decades, most of its potential for energy generation is yet to be delivered.

In recent years, research has also been looking into the use of AD for the production of chemicals other than methane, e.g., organic acids and hydrogen. These chemicals, used for many purposes in the chemical and food industry, are currently mainly produced from fossil fuels. Their production from biomass and organic waste via AD could represent a big step forward for a sustainable chemical industry that uses renewable feedstocks.

Research, innovation and process development are required for AD to deliver its full potential for the production of bioenergy and biochemicals. Increase in conversion yields, process productivity, product concentration, and reduction in process costs are among the factors that can advance AD technology. This topic covers high-quality work that contributes to advancing AD and bringing it closer to delivering its full potential. Topics include but are not limited to:

  • Innovative AD processes;
  • Improvements in AD technology and processes;
  • Pre-treatments;
  • New sustainable feedstocks;
  • Use of AD for organic acids and hydrogen production;
  • Microbiology of AD;
  • Economics and life cycle assessment of AD;
  • AD of municipal and industrial wastewaters.

Dr. Yue Zhang
Dr. Davide Dionisi
Topic Editors

Keywords

  • anaerobic digestion (AD)
  • innovative AD processes
  • improvements in AD technology and processes
  • pre-treatments
  • new sustainable feedstocks
  • use of AD for organic acids and hydrogen production
  • microbiology of AD
  • economics and life cycle assessment of AD
  • AD of municipal and industrial wastewater

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Biomass
biomass 		- - 2021 19 Days CHF 1000
Energies
energies 		3.2 5.5 2008 16.1 Days CHF 2600
Microorganisms
microorganisms 		4.5 6.4 2013 15.1 Days CHF 2700
Processes
processes 		3.5 4.7 2013 13.7 Days CHF 2400
Water
water 		3.4 5.5 2009 16.5 Days CHF 2600

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Published Papers (2 papers)

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14 pages, 3744 KiB  
Article
Comparative Life Cycle Environmental Impact Assessment of Fruit and Vegetable Waste Valorization by Anaerobic Digestion as an Alternative in a Mediterranean Market
by Ángeles Trujillo-Reyes, Elena Jiménez-Páez, Antonio Serrano, Ghada Kassab, Fernando G. Fermoso and Bernabé Alonso-Fariñas
Processes 2023, 11(12), 3397; https://doi.org/10.3390/pr11123397 - 10 Dec 2023
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Abstract
Landfilling and incineration are the most widely used methods for the management and treatment of fruit and vegetable waste (FVW) in Mediterranean markets, despite their potential environmental impact. A comparative life cycle assessment was conducted in this study to evaluate the environmental improvements [...] Read more.
Landfilling and incineration are the most widely used methods for the management and treatment of fruit and vegetable waste (FVW) in Mediterranean markets, despite their potential environmental impact. A comparative life cycle assessment was conducted in this study to evaluate the environmental improvements from replacing the current landfill disposal method for FVW management and treatment in the wholesale market of Amman (Jordan) with an integrated anaerobic digestion process followed by composting. The proposed FVW treatment scenario is the best treatment option for all the assessed impact categories under the system expansion approach. Significant reductions in global warming and terrestrial ecotoxicity impacts categories would be achieved, reaching up to 322% and 352%, respectively, when compared to the current treatment scenario. Furthermore, the higher production of electrical energy (413%), as well as the production of co-products that would avoid the production of 100 kg/d of inorganic fertilizers, would contribute to such a low value of avoided impacts. Full article
(This article belongs to the Topic Anaerobic Digestion Processes, 2nd Volume)
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13 pages, 2815 KiB  
Article
Investigation of the Critical Biomass of Acclimated Microbial Communities to High Ammonia Concentrations for a Successful Bioaugmentation of Biogas Anaerobic Reactors with Ammonia Inhibition
by Sotirios D. Kalamaras, Maria Lida Christou, Christos A. Tzenos, Sotirios Vasileiadis, Dimitrios G. Karpouzas and Thomas A. Kotsopoulos
Microorganisms 2023, 11(7), 1710; https://doi.org/10.3390/microorganisms11071710 - 30 Jun 2023
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Abstract
This study aimed to investigate the role of the bioaugmented critical biomass that should be injected for successful bioaugmentation for addressing ammonia inhibition in anaerobic reactors used for biogas production. Cattle manure was used as a feedstock for anaerobic digestion (AD). A mixed [...] Read more.
This study aimed to investigate the role of the bioaugmented critical biomass that should be injected for successful bioaugmentation for addressing ammonia inhibition in anaerobic reactors used for biogas production. Cattle manure was used as a feedstock for anaerobic digestion (AD). A mixed microbial culture was acclimated to high concentrations of ammonia and used as a bioaugmented culture. Different volumes of bioaugmented culture were injected in batch anaerobic reactors under ammonia toxicity levels i.e., 4 g of NH4+-N L−1. The results showed that injecting a volume equal to 65.62% of the total working reactor volume yielded the best methane production. Specifically, this volume of bioaugmented culture resulted in methane production rates of 196.18 mL g−1 Volatile Solids (VS) and 245.88 mL g−1 VS after 30 and 60 days of AD, respectively. These rates were not significantly different from the control reactors (30d: 205.94 mL CH4 g−1 VS and 60d: 230.26 mL CH4 g−1 VS) operating without ammonia toxicity. Analysis of the microbial community using 16S rRNA gene sequencing revealed the dominance of acetoclastic methanogen members from the genus Methanosaeta in all reactors. Full article
(This article belongs to the Topic Anaerobic Digestion Processes, 2nd Volume)
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