Review
Energy & Fuels
Piotr Sulewski, Wiktor Ignaciuk, Magdalena Szymanska, Adam Was
Summary: The challenges posed by climate policy and the energy crisis have led to the search for alternative energy sources, with biomethane emerging as a substitute for natural gas. This review aims to comprehensively assess the conditions and opportunities for developing the biomethane sector in the EU in light of the energy and climate crisis. The review examines the biomethane market in the European Union, focusing on production technologies, supply and demand, production costs, and financial support systems. The findings suggest a rapidly changing biomethane production market with potential for significant development, but requiring a supportive legal environment and transparent incentive system.
Review
Biotechnology & Applied Microbiology
Tatsiana Antukh, Ingyu Lee, Sunghee Joo, Hyunook Kim
Summary: Biogas upgrading is a process to separate methane from carbon dioxide and impurities in order to increase its purity and combustion efficiency. Conventional technologies have issues, while hydrogenotrophs-based biological upgrading attracts attention due to its simplicity and technological potential.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Environmental Sciences
L. Braga Nan, E. Trably, G. Santa-Catalina, N. Bernet, J-P Delgenes, R. Escudie
Summary: This study demonstrates that biomethanation processes can respond positively to intermittent H2 addition without compromising their CH4 production performance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Multidisciplinary
P. Canu, M. Pagin
Summary: A thermodynamic analysis of CO2 methanation within biogas provides guidance for developing efficient catalysts and processes. The results show that operating temperature and pressure significantly affect the purity of the product and the leakage of hydrogen. Applying multiple stages and steam condensation can further improve purity and reduce leakage.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Agronomy
Phiona Jackline Mukisa, Chama Theodore Ketuama, Hynek Roubik
Summary: Biogas technology has the potential to achieve multiple Sustainable Development Goals (SDGs), offering greater socioeconomic, health, and environmental benefits compared to firewood. It directly impacts SDG7 and indirectly affects SDGs 2, 3, 5, 6, 8, 9, and 13. Factors motivating the adoption of biogas technology include its smoke-free nature, enabling women and children to engage in other development activities and reducing cooking time.
Article
Green & Sustainable Science & Technology
Matevz Zupancic, Valerija Mozic, Matic Moze, Franc Cimerman, Iztok Golobic
Summary: This review addresses the recent progress in waste-to-biogas technology, provides an overview of waste and waste management issues, describes waste-to-energy technologies and their implementation in European countries, reviews biogas production from waste worldwide, and offers an outlook into the future of waste-to-energy technologies.
Article
Energy & Fuels
Zohaib Ur Rehman Afridi, Kaleem Ullah, Muhammad Farooq Mustafa, Haider Saleem, Bilawal Shaker, Nouman Ashraf, Sheraz Aslam
Summary: China and Nepal have developed policies and technologies for utilizing agricultural resources for clean biogas technology, while Pakistan, a major agricultural country, still faces obstacles in this area. This study aims to identify the barriers to the growth of the biogas sector in Pakistan through comprehensive policy analysis and engagement with stakeholders.
Review
Construction & Building Technology
Mariana Cardoso Chrispim, Miklas Scholz, Marcelo Antunes Nolasco
Summary: There is great potential for energy recovery from municipal wastewater treatment plants to improve energy efficiency and reduce greenhouse gas emissions, but implementation is hindered by technological gaps and lack of government support, especially in developing countries.
SUSTAINABLE CITIES AND SOCIETY
(2021)
Article
Environmental Sciences
Isaac Owusu-Agyeman, Elzbieta Plaza, Nilay Elginoz, Merve Atasoy, Kasra Khatami, Mariel Perez-Zabaleta, Carlos Cabrera-Rodriguez, Hatice Yesil, A. Evren Tugtas, Baris Calli, Zeynep Cetecioglu
Summary: Shifting the concept of municipal wastewater treatment to recover resources is proposed to achieve a sustainable society. This novel concept utilizes various units to recover bio-based products from wastewater while meeting regulatory standards. The proposed units include anaerobic sludge blanket reactor for biogas recovery, co-fermentation of sewage sludge and organic waste for volatile fatty acid production, and membrane technology for VFA separation and recovery.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Thermodynamics
Kuan Zhang, Bin Zhou, Canbing Li, Nikolai Voropai, Jiayong Li, Wentao Huang, Tao Wang
Summary: This paper proposes an optimal coordinated multi-energy conversion and management framework with a biogas-dominated hybrid renewable microgrid for multi-carrier energy supplies in off-grid remote areas. The framework models couplings among various renewables and presents a hierarchical multi-energy management strategy to enhance energy efficiency. Case studies validate the effectiveness of the proposed framework in improving biogas yield and reducing battery degradation cost.
Article
Agricultural Engineering
Maximilian Miehle, Max Hackbarth, Johannes Gescher, Harald Horn, Andrea Hille-Reichel
Summary: Biogas upgrading is essential to reduce CO2 levels and make it suitable for gas liquefaction or introduction into the national gas grid. Biomethanation shows promise in converting CO2 to methane, taking advantage of the organisms involved in biogas production. This study explores the use of a pseudo-dead-end membrane biofilm reactor for exsitu biogas upgrading, demonstrating high methane production rates.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Shahid Ali, Qingyou Yan, Muhammad Irfan, Fengyi Ai, Huaping Sun, Xiaochun Zhang
Summary: Due to air pollution and climate change, entrepreneurship is becoming a crucial factor in the global conversation on renewable energy for saving the planet. However, there is a lack of research on the connection between biogas energy technology and entrepreneurship in Pakistan. This study fills this gap by investigating the impact of bioenergy as a business prospect on sustainable economic growth. The findings suggest that all perspectives are significantly and positively associated with the sustainable progress of businesses implementing biogas energy, though social media awareness does not moderate this relationship.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Emanuele Moioli
Summary: The power-to-X system in a building utilizes electricity surplus to produce methane, used for heating in winter and warming sanitary water without the need for an electric boiler. By maximizing energy independence and producing multiple forms of energy, the system ensures profitability beyond electricity feed-in tariffs.
Article
Chemistry, Multidisciplinary
Ryo Watanabe, Fumiya Karasawa, Chikamasa Yokoyama, Kazumasa Oshima, Masahiro Kishida, Masahiro Hori, Yukinori Ono, Shigeo Satokawa, Priyanka Verma, Choji Fukuhara
Summary: This study evaluated the catalytic properties of Fe/CeO2 catalyst, commercial Cu-Zn catalyst, and Co-Mo catalyst for the reverse water gas shift reaction (RWGS) in the presence of hydrogen sulfide (H2S). The Fe/CeO2 catalyst showed higher catalytic activity compared to the commercial Cu-Zn and Co-Mo catalysts, and exhibited stable performance in the RWGS environment with high concentrations of H2S. The role of cofeeding H2S was investigated and found to enhance RWGS performance by serving as a hydrogen source to reduce CO2.
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Agronomy
Papa Mamadou Sitor Ndour, Cheikh Mbacke Barry, Diame Tine, Carla De la Fuente Canto, Mariama Gueye, Mohamed Barakat, Philippe Ortet, Wafa Achouak, Ibrahima Ndoye, Bassirou Sine, Laurent Laplaze, Thierry Heulin, Laurent Cournac
Summary: This study demonstrates that in pearl millet, the rhizosheath size is related to soil nutrient dynamics and microbiota diversity. However, it also shows that other factors shape this trait and their relative importance must be determined.
Article
Oceanography
Modou Thiaw, Didier Gascuel, Oumar Sadio, Ismaila Ndour, Hamet Diaw Diadhiou, Justin Kantoussan, Saliou Faye, Modou Thiam, Beyah Meissa, Patrice Brehmer
Summary: Using trophodynamic models, this study assessed the impact of a decade-long fishing closure inside and outside marine protected areas in Senegal on the ecosystem trophic network. Results showed a significant increase in predator biomass and decrease in prey biomass in the Bamboung MPA after fishing closure. Both MPAs studied showed evidence of poaching effects. The Joal-Fadiouth MPA demonstrated a positive effect of high habitat diversity and fishery closure on low-mobility species, but the biomass of large species from high trophic levels remained low inside the MPA.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Multidisciplinary Sciences
Timothee Brochier, Patrice Brehmer, Adama Mbaye, Mamadou Diop, Naohiko Watanuki, Hiroaki Terashima, David Kaplan, Pierre Auger
Summary: Artificial reefs are important for supporting marine ecosystem conservation and coastal fisheries, but careful evaluation is needed for their impact on fishing yields, especially in developing countries. Research shows that fishing yields decline when artificial reefs are exploited as open access areas, particularly in areas with weak governance and high levels of illegal fishing activity.
SCIENTIFIC REPORTS
(2021)
Article
Marine & Freshwater Biology
Viviane David, Anne Mouget, Yannick Perrot, Loic Le Goff, Pierre Thiriet, Ndague Diogoul, Eric Feunteun, Anthony Acou, Patrice Brehmer
Summary: Surveying pelagic fish population dynamics in ultra-shallow waters is often limited by research vessel size. This study used a multibeam echosounder to detect and assess fish shoals in these waters, revealing higher densities and larger sizes compared to deeper areas. Atlantic mackerels were observed during summer. The multibeam echosounder is a valuable tool for evaluating the ecological status of pelagic fish.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Agronomy
Adrien Byamungu Ndeko, Hassna Founoune-Mboup, Aboubacry Kane, Laurent Cournac
Summary: The study revealed that AMF temperature stress reduces mycorrhizal colonization rate, plant biomass, and soil aggregation of pearl millet lines, but inoculation with AMF positively impacts the tolerance of pearl millet lines to temperature stress.
Article
Multidisciplinary Sciences
C. de la Fuente Canto, M. N. Diouf, P. M. S. Ndour, M. Debieu, A. Grondin, S. Passot, A. Champion, C. Barrachina, M. Pratlong, P. Gantet, K. Assigbetse, N. Kane, P. Cubry, A. G. Diedhiou, T. Heulin, W. Achouak, Y. Vigouroux, L. Cournac, L. Laplaze
Summary: This study investigated the correlation between root-adhering soil mass and root hair development, root architecture, and symbiosis with arbuscular mycorrhizal fungi in pearl millet. The genetic control of this trait was analyzed using genome wide association (GWAS) and gene expression studies. The results showed that root exudation mainly regulates rhizosheath formation, which is under complex genetic control in pearl millet.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Patrice Brehmer, Marc Soria, Viviane David, Pablo Ivan Caballero Pinzon, Pascal Bach, Ndague Diogoul, Jean Guillard
Summary: High-resolution multibeam sonar can estimate the movements of pelagic fish schools at short range. By calculating a Straightness Index, we can quantify the proportion of actively migrating fish schools compared to those residing in lagoon channels. This enhances our understanding of fish school displacements and migration processes, which are crucial for understanding ecosystem functioning.
Article
Environmental Sciences
Amidou Sonko, Dalyal Copin, Patrice Brehmer, Cheikh Diop, Guillaume Constantin De Magny, Mamadou Fall, Yoba Kande, Patricia Moulin, Naby Souleymane Faye, Saliou Faye, Isabelle Linossier, Gael Le Pennec
Summary: Marine pollution poses a major threat to coastal megacities in West Africa, especially in terms of marine sediments. A study conducted in Dakar revealed slightly basic sediments with predominance of fine and coarse sands. High levels of heavy metals, such as chromium and nickel, were found, indicating a poor ecotoxicological state. Measures are needed to improve the sanitary condition and reduce the toxicity of the marine feature in Dakar.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Crystallography
Seynabou Sokhna, Insa Seck, Ibrahima El Hadj Thiam, Marc Presset, Samba Fama Ndoye, Lalla Aicha Ba, Issa Samb, Simon Coles, James Orton, Matar Seck, Erwan Le Gall, Mohamed Gaye
Summary: Two new heterocyclic 1,2,3-triazenes were synthesized by coupling reactions of 3-aminopyridine with morpholine and 1,2,3,4-tetrahydroquinoline, respectively. The synthesis was characterized by various techniques including NMR, IR, mass spectrometry, and X-ray diffraction. The crystal structures of the compounds reveal interesting molecular arrangements connected by CHN interactions.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2023)
Article
Soil Science
M. Oscar Kisaka, Chris Shisanya, Laurent Cournac, J. Raphael Manlay, Harun Gitari, Jonathan Muriuki
Summary: Conservation agriculture with trees (CAWT) is a beneficial strategy for improving soil quality in smallholder farming. This study identified key soil quality indicators under CAWT and assessed the effects of different components on soil quality. The results have important implications for maize production.
SOIL & TILLAGE RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Nadia Arrousse, Khadim Dioukhane, Rajesh Haldhar, Rajae Salim, El Hachmia Ech-chihbi, Hamza Ichou, Anouar Alami, Seong-Cheol Kim, Mohamed Lamine Gaye, Mustapha Taleb
Summary: In this study, we investigated the efficiency of two derivatives of tetrazolic amino acids, AN8 and AN11, as inhibitors for mild steel corrosion in a 1M hydrochloric acid solution. The experimental results were confirmed by theoretical calculations and simulations, showing that AN8 exhibits higher corrosion protection than AN11, with protection rates of 84% and 76% at 10-3M concentrations, respectively. Additionally, different models of adsorption isotherms were tested to understand the adsorption behavior of the tetrazolic amino acid derivatives.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Fisheries
Bocar Sabaly Balde, Patrice Brehmer, Saliou Faye, Penda Diop
Summary: This study analyzed the growth parameters of sardines in the Exclusive Economic Zone of northern Senegal and compared it with other regions. The results showed that sardines in northern Senegal have higher asymptotic length and age, which may be attributed to differences in habitat, environmental factors, and fishing pressure.
Article
Fisheries
Anne Mouget, Patrice Brehmer, Yannick Perrot, Uatjavi Uanivi, Ndague Diogoul, Salahedine El Ayoubi, Mohamed Ahmed Jeyid, Abdoulaye Sarre, Nolwenn Behagle, Aka Marcel Kouassi, Eric Feunteun
Summary: This study investigates the use of sound scattering layers (SSLs) to identify key nonspecific organizational characteristics of mid-trophic pelagic communities in African Atlantic Large Marine Ecosystems (AALMEs). The results suggest that SSL variables can be used to standardize monitoring of marine ecosystems and capture changes in the spatial structure and function of mid-trophic pelagic marine ecosystems.
Article
Crystallography
Alassane Saidou Diallo, Ibrahima Elhadji Thiam, Mbosse Gueye-Ndiaye, Moussa Dieng, James Orton, Coles Simon, Mohamed Gaye
Summary: This article presents the molecular structure of a non-symmetric tetranuclear copper complex, which contains two ligand molecules connecting copper ions in different modes. A chair-like Cu3O3 structure is formed in the crystal, and multiple hydrogen bonds are observed.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2022)
Article
Crystallography
Momath Kebe, Ibrahima Elhadji Thiam, Mouhamadou Moustapha Sow, Ousmane Diouf, Aliou Hamady Barry, Abdou Salam Sall, Pascal Retailleau, Mohamed Gaye
Summary: The hexanuclear copper complex has a non-symmetric structure with diverse coordination environments for Cu-II metal centers, interconnected by phenolato oxygen anions in different modes.
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS
(2021)