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Biogas Production from Microalgae
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Biogas Production from Microalgae

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: closed (20 March 2023) | Viewed by 3982

Special Issue Editor

Prof. Dr. Fabiana Passos

E-Mail Website
Guest Editor
Department of Sanitary and Environmental Engineering, Federal University of Minas Gerais, Av. Antônio Carlos, Belo Horizonte 31270-901, Brazil
Interests: anaerobic digestion; biogas; microalgae; waste and wastewater treatment

Special Issue Information

Dear Colleagues,

After decades of intensive research on microalgae biotechnologies, in particular the anaerobic bioconversion of microalgae to biogas, full-scale implementation is still incipient due to challenges yet to be understood and resolved. The capability of microalgae to grow in several wastewaters and digestates and its role in sustainable sanitation is scientifically well understood. However, the mechanisms behind thestate-of-the-art technology for recovering biomass, understanding and controlling process performance, and optimising biogas production remain uncertain. 

In this manner, this Special Issue, entitled Biogas Production from Microalgae, will be published in Energies (https://0-www-mdpi-com.brum.beds.ac.uk/journal/energies, ISSN 1996-1073) intends to organise well consolidated and new features on this topic. Investigations on related subjects, such as reactor design and process optimisation, microbial community, pre-treatments, co-digestion, and biogas upgrading and modeling will be organised together to consolidate high-quality papers.

Our main aim is to prepare and systematise research concerning the key issues and horizons on biogas production from microalgae in order to leverage its development, particularly as a sanitation solution, for recovering valuable products from waste, and in wastewater treatment. As is known, anaerobic digestion might be the most applicable microalgae downstream process and it is relevant to all biorefinery approaches. Therefore, important hurdles should be investigated for developing sustainable and engineered microalgae-based solutions.

For further details on the submission process, please see the instructions for authors at the journal website: https://0-www-mdpi-com.brum.beds.ac.uk/journal/energies/instructions

Although the deadline for submission of manuscripts to the Special Issue is 31st March 2022, I would appreciate hearing from you in the next few weeks to ascertain whether you would be willing to make a submission. The submission deadline can be extended upon request.

We look forward to receiving your contributions on this relevant and fascinating topic.

Prof. Dr. Fabiana Passos
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. Energies 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 2600 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

  • Experimental and demonstration-scale plants 
  • Microalgal biomass cultivation and harvesting for anaerobic digestion 
  • Reactor design, operation, control, and automation 
  • Microalgae characterisation, microbial community, and strain improvement 
  • Pre-treatment technologies 
  • Co-digestion of microalgae 
  • Biogas upgrading with microalgae biotechnologies 
  • Kinetic and mathematical modelling 
  • Economics and life cycle assessment 
  • Applications in developing countries 
  • Integrated biorefinery approach

Published Papers (2 papers)

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Research

12 pages, 2813 KiB  
Article
Biogas Production from Arthrospira platensis Biomass
by Małgorzata Hawrot-Paw, Adam Koniuszy, Patryk Ratomski, Magdalena Sąsiadek and Andrzej Gawlik
Energies 2023, 16(10), 3971; https://0-doi-org.brum.beds.ac.uk/10.3390/en16103971 - 09 May 2023
Viewed by 1985
Abstract
Biogas production by fermentation is a relatively low-cost and simple method for the transformation of a substrate into an energy carrier with a wide range of possible applications. The aim of this study was to determine the potential of Arthrospira platensis biomass as [...] Read more.
Biogas production by fermentation is a relatively low-cost and simple method for the transformation of a substrate into an energy carrier with a wide range of possible applications. The aim of this study was to determine the potential of Arthrospira platensis biomass as a source of bioenergy produced during anaerobic digestion (AD). The studies were carried out on a fractional-technical scale. Biogas yield and composition were analyzed as a function of the amount of biomass subjected to anaerobic digestion, the substrate dosing frequency in the digester and the use of biomass pre-hydrolysis in the mixing compartment. The energy efficiency of the process was also compared for each sample. In addition, a biomass conversion power index was developed and determined. It was found that A. platensis biomass had significant energy potential, and the amount of biogas obtained and its calorific value changed depending on the applied treatments. The maximum cumulative biogas production was 505 L kg−1 volatile solids (VS), while the maximum average methane (CH4) content was 67.32%. A two-fold increase in the organic loading rate from 1 g VS·L−1 volatile solids (VS) to 2 g VS·L−1 had a positive effect on methane concentration. The highest energy efficiency of the AD process was obtained for 2 g VS·L−1, with a single feedstock input into the digester, in a single-stage process (2/s/-), while the highest conversion power ratio was for a feedstock of 1 g VS·L−1, under the same process conditions (1/s/-). Moreover, the energy efficiency of the microalgae fermentation process obtained in the study is higher compared to conventional substrates used in biogas plants. This energy analysis can support the selection of cogeneration power engines in a biogas plant and help to determine the potential output of the biogas plant, especially with varying energy and heat demand. Full article
(This article belongs to the Special Issue Biogas Production from Microalgae)
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18 pages, 568 KiB  
Article
Pathway to Green Transformation in Lithuania: Biogas Production from Manure and Waste
by Živilė Gedminaitė-Raudonė, Rita Lankauskienė and Vitalija Simonaitytė
Energies 2022, 15(9), 2989; https://0-doi-org.brum.beds.ac.uk/10.3390/en15092989 - 19 Apr 2022
Cited by 3 | Viewed by 1511
Abstract
Green transformation at the beginning of the 21st century occupies the top positions in modern society’s sustainability transition research and policy debates due to its multiple propositions of various innovations, addressing the still unsolved issues of rapidly on-going societal and technological changes. Rooting [...] Read more.
Green transformation at the beginning of the 21st century occupies the top positions in modern society’s sustainability transition research and policy debates due to its multiple propositions of various innovations, addressing the still unsolved issues of rapidly on-going societal and technological changes. Rooting from the general climate change concerns, recently, sustainability transformation has become a special focus in the EU, which is facing new and very concrete demands—to elucidate the evidence-based pathways towards the green transformation with European Green Deal and European Climate Law targets ahead. The main aim of this research is to disclose the pathway towards the green transformation in Lithuania in one of the fast-growing research fields of circular bioeconomy—biogas production from manure and waste. To reach this aim, a hybrid methodology approach was used. Analysis and synthesis of scientific literature, document analysis and structuring, stakeholder mapping, interviews, and statistical analysis methods had been applied. Research results gave evidence for one of the five proposed possible ways for green transformation in Lithuania—the regime transformation. Interviewed stakeholders repeatedly defined this as the most probable pathway for green transformation in Lithuania in the field of biogas production from manure and waste, considering the best suitability of the current development state in the field: adjustments of existing industries, skills, regulations, and institutions. Full article
(This article belongs to the Special Issue Biogas Production from Microalgae)
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