Article
Agricultural Engineering
C. Van Vlierberghe, R. Escudie, N. Bernet, G. Santa-Catalina, S. Frederic, H. Carrere
Summary: This study investigated an innovative process that combines storage and alkali pretreatment using lime as a reactant. Results showed that efficient alkaline storage and an increase in Biochemical Methane Potential (BMP) were achieved under dry conditions, while wet conditions led to BMP loss.
BIORESOURCE TECHNOLOGY
(2022)
Review
Agricultural Engineering
Santhana Raj Deena, A. S. Vickram, S. Manikandan, R. Subbaiya, N. Karmegam, Balasubramani Ravindran, Soon Woong Chang, Mukesh Kumar Awasthi
Summary: Biogas generation through anaerobic co-digestion of food waste and activated sludge is an excellent solution to address global challenges and meet increasing energy demands, while also providing a cleaner alternative for pollution and wastewater treatment. However, the efficiency and stability of this technology are hindered by irregularities in the substrate. Adjusting process parameters, optimizing substrate composition, and adding biochar as an additive can enhance the efficiency and outcome of the system.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Monika Yadav, Vivekanand Vivekanand
Summary: In this study, chitinolytic bacteria were used for bioaugmentation of fungal pretreated agricultural residues to enhance biogas production. Batch and continuous experiments showed that the addition of chitinolytic bacteria to wheat and pearl millet straw pretreated with Chaetomium globosporum resulted in increased biogas yield. Microbial community analysis revealed higher abundance of methanogens in reactors running with pretreated wheat straw, mainly consisting of Firmicutes, Bacteroidetes, Proteobacteria phyla.
BIORESOURCE TECHNOLOGY
(2021)
Review
Chemistry, Physical
Devaraj Thiruselvi, Ponnusamy Senthil Kumar, Madhava Anil Kumar, Chyi-How Lay, Salma Aathika, Yuvarani Mani, D. Jagadiswary, Anuradha Dhanasekaran, Palaniyandi Shanmugam, Subramanian Sivanesan, Pau-Loke Show
Summary: The review discusses the significance of renewable biogas production technology in reducing greenhouse gas emissions and addressing global warming, highlighting the importance of sustainable techniques in meeting energy demands. Anaerobic digestion for biogas production from waste is recognized as a leading green energy solution for environmental management and meeting global energy challenges.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Environmental Sciences
Jiaxin Chen, Ji Li, Bin Ye, Xiaolei Zhang, R. D. Tyagi, Xinlei Gao
Summary: Management of chicken manure in Morocco has become a focus due to the increasing demand for chicken and eggs. The bioconversion of chicken manure into biogas can reduce the amount of manure while generating clean energy. Comparing with co-firing, pyrolysis, and gasification, anaerobic digestion of chicken manure was found to be superior in terms of energy gain.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Review
Energy & Fuels
Mohsen Karrabi, Fahime Mosadegh Ranjbar, Bahar Shahnavaz, Saba Seyedi
Summary: Recently, there has been growing interest in using organic or biodegradable wastes, including lignocellulosic wastes (LWs), as renewable energy sources. Anaerobic digestion (AD) of these wastes can mitigate environmental damage and produce biogas and bioenergy, which is particularly valuable in developing countries. However, there are several challenges to overcome, such as waste floating on top of reactors, high carbon-to-nitrogen ratio (CNR), complex structure of LWs, and poor degradability due to high lignin content. These challenges can be addressed through methods like mixing in reactors, reducing CNR, balancing inoculum-to-substrate ratio (ISR), and pretreatments. This study aims to review the literature on AD of LWs, identify existing challenges, and propose strategies to improve bioenergy production from this waste.
Article
Engineering, Environmental
Thobias Pereira Silva, Mauricio Guimaraes de Oliveira, Jose Marcos Marques Mourao, Andre Bezerra dos Santos, Erlon Lopes Pereira
Summary: This study developed a mathematical model based on Monte Carlo simulation to predict the energy potential of biogas produced in an up-flow anaerobic sludge blanket (UASB) reactor treating swine wastewater (SWW). Lab-scale experiments and literature information were used to determine the energy potential of SWW at different organic loading rates (OLRs). The model allowed an estimation close to reality, with reduced errors, making it a relevant tool for entrepreneurship and energy self-sufficiency projects.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Energy & Fuels
Sebastian Borowski, Weronika Cieciura-Wloch, Przemyslaw Liczbinski
Summary: The study found that the use of mineral fertilizers can increase the biogas production from vegetable waste, with Substral fertilizer having better effects. The addition of mineral fertilizers changed the microbial communities in the digestates, increasing the relative abundance of Lactobacillaceae and Anaerolineaceae.
BIOENERGY RESEARCH
(2023)
Article
Engineering, Chemical
Yue Zhang, Sigrid Kusch-Brandt, Andrew M. Salter, Sonia Heaven
Summary: This study provides a detailed analysis and comparison of methane yields from different energy crops and crop residues, focusing on European crops, revealing significant differences in methane yields among different crops. The intra-crop variation of methane yield was found to be higher than the inter-crop variation, highlighting the high-risk nature of relying on individual assay results when planning biogas operations.
Article
Green & Sustainable Science & Technology
W. O. Meneses-Quelal, B. Velazquez-Marti, J. Gaibor-Chavez, Z. Nino-Ruiz
Summary: This study evaluated the anaerobic digestion of agricultural waste, manure, and slaughterhouse residues from species typical of the Andes region, such as llama, vicuna, and guinea pig; quinoa, amaranth, and wheat straw. The highest methane production rates were achieved for flame manure and quinoa straw at an RSI of 1:2, with significant increases compared to an RSI of 1:1. The modified Gompertz model proved to be the best fit for performance analysis, with a constant difference of 7.06% between experimental and predicted values.
Review
Biotechnology & Applied Microbiology
Estelle Leca, Bastien Zennaro, Jerome Hamelin, Helene Carrere, Cecilia Sambusiti
Summary: Nowadays, anaerobic digestion (AD) is being encouraged to increase biogas and biomethane production. This literature review summarizes the effects of various additives in co-digestion reactors to overcome challenges in collective biogas plants. The addition of microbial strains or consortia, enzymes, and inorganic additives in digesters is analyzed and discussed. Further research is needed to understand mechanisms, optimize dosage and combinations of additives, assess environmental impact, and evaluate economic feasibility.
BIOTECHNOLOGY ADVANCES
(2023)
Article
Agricultural Engineering
Mathu Indren, Cristian H. Birzer, Stephen P. Kidd, Tony Hall, Paul R. Medwell
Summary: The study demonstrates that high dosages of pristine biochar can improve the performance of high-solids anaerobic digesters, while low dosages and re-used biochar may not have significant effects.
BIOMASS & BIOENERGY
(2021)
Review
Green & Sustainable Science & Technology
N. Kamalimeera, V Kirubakaran
Summary: In India, rural areas account for only 23% of national electricity usage, highlighting the need to expand access to electricity for sustainable development. Biomass, particularly in the form of biogas produced from organic waste, provides a simple and direct energy source for cooking, heating, and electricity generation in rural households. Biogas production offers a pathway to generate electricity in villages through technologies like Solid Oxide Fuel Cells, ultimately bringing power closer to rural communities.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Agricultural Engineering
Balazs Kakuk, Zoltan Bagi, Gabor Rakhely, Gergely Maroti, Denes Dudits, Kornel L. Kovacs
Summary: Willow genotypes harvested in June are superior methane sources compared to woody tissue. Fermentation efficiency of pooled biomasses from tetraploid genotypes harvested from June to August is higher than that of diploid tissues. Microbial community analysis reveals a dominance of the order Clostridiales.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
Richard O'Shea, Yan Yang, Komal Kansagra, Daniel T. Hickey, Danielle Kohler, Jerry D. Murphy
Summary: This study aims to evaluate the potential biogas resource of by-products from 9 operational distilleries in 7 countries. It also calculates the energy resource and greenhouse gas emission savings from using these by-products as feedstock for anaerobic digestion. Additionally, other criteria such as by-product properties and facility size are important when considering the integration of anaerobic digestion with distilleries.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Giorgos Markou, Mathieu Brule, Athanasios Balafoutis, Michael Kornaros, Dimitris Georgakakis, George Papadakis
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2017)
Article
Biotechnology & Applied Microbiology
Mathieu Brule, Hans Oechsner, Thomas Jungbluth
BIOPROCESS AND BIOSYSTEMS ENGINEERING
(2014)
Review
Green & Sustainable Science & Technology
Emna Abdeljaoued, Mathieu Brule, Saida Tayibi, Dimitris Manolakos, Abdallah Oukarroum, Florian Monlau, Abdellatif Barakat
CLEAN TECHNOLOGIES AND ENVIRONMENTAL POLICY
(2020)