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Sustainable Development of Biogas, Potential Benefits and Challenges

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Resources and Sustainable Utilization".

Deadline for manuscript submissions: closed (1 July 2021) | Viewed by 3028

Special Issue Editors

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Guest Editor
Biotechnological Processes Unit, IMDEA Energy, 28040 Madrid, Spain
Interests: biotechnology; biofuel production; agricultural for energy source; energy production
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Universidad de La Laguna | ULL · Escuela Técnica Superior de Ingenieria Agraria
Interests: biofuels; biogas; bio-energies; renewable energies; environmental biotechnology

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Guest Editor
Department of the Environment, Centre for Energy, Environment and Technology (CIEMAT) Madrid, Spain.
Interests: biodegradation; solid waste management; biological wastewater treatment; environmental biotechnology

Special Issue Information

Dear Colleagues,

According to the EU Methane Strategy, methane emissions from agricultural waste and energy account for up to 95% of human-made methane emissions worldwide. Reducing these methane emissions by 50% over the next 30 years could mitigate global temperature change by 0.18 °C by 2050. Biogas and biomethane play a major role in the EU Methane Strategy and have been contributing to methane emission reductions in agricultural and waste sectors for many years.

This Special Issue welcomes reviews, case studies, and original research papers on the following topics of interest, among others:

- Anaerobic digestion of new substrates;

- New digestion processes, improvements or co-digestion strategies;

- Flexible biogas plants;

- Biogas upgrading;

- Biomethane production and use;

- Power-to-gas technologies (involving biogas in any manner);

- Life cycle assessments of biogas production and/or upgrading processes;

- Digestate use, enhancement, and/or novel digestate products;

- Production of valuable co-products from biogas or the anaerobic digestion process.

We hope that this Special Issue can contribute to the development of biogas technology and industry in this crucial moment in the climate change crisis by covering all aspects of sustainable development of biogas, as well as the foreseen benefits and challenges.

Dr. Cristina González-Fernandez
Dr. Juan Luis Ramos-Suárez
Dr. Nely Carreras
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at 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. Sustainability is an international peer-reviewed open access semimonthly 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 2400 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.


  • Biogas
  • Digestate
  • Biomethane
  • Biogas upgrading
  • Power-to-gas
  • Anaerobic digestion
  • Co-digestion
  • Waste management
  • Life cycle assessment
  • Power-to-gas
  • Biogas plants

Published Papers (1 paper)

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18 pages, 1449 KiB  
Economic Viability and Greenhouse Gas (GHG) Budget of the Biomethane Retrofit of Manure-Operated Biogas Plants: A Case Study from Piedmont, Italy
by Alessandro Casasso, Marta Puleo, Deborah Panepinto and Mariachiara Zanetti
Sustainability 2021, 13(14), 7979; - 16 Jul 2021
Cited by 7 | Viewed by 2455
The management of livestock manures and slurries noticeably improved since the massive introduction of anaerobic digestion (AD) plants in Italy and other European Union (EU) countries. However, these plants heavily rely on incentives, and the recent switch of European biogas policies from electricity [...] Read more.
The management of livestock manures and slurries noticeably improved since the massive introduction of anaerobic digestion (AD) plants in Italy and other European Union (EU) countries. However, these plants heavily rely on incentives, and the recent switch of European biogas policies from electricity to biomethane potentially threatens the economic viability of manure AD. In this study, three retrofit options are analyzed for an installation in Piedmont (NW Italy) that is currently producing 999 kWel through combined heat and power (CHP). The techno-economic feasibility and the greenhouse gas (GHG) budget is analyzed for each solution. Results show that exploiting current incentives on electricity is vital to fund the retrofit of CHP plants to biomethane. Energy crop and electricity prices, the sale price of biomethane certificates after the end of incentives, and biogas productivity are the critical parameters for the economic profitability of manure AD plants, along with the possibility to deliver biomethane directly to the pipeline grid. This study provides insight to the reconversion of manure AD plants, addressing issues that affect hundreds of installations in Italy and other EU countries. Full article
(This article belongs to the Special Issue Sustainable Development of Biogas, Potential Benefits and Challenges)
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