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
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
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.
Review
Biochemistry & Molecular Biology
Venugopalan Visha Kumari, Purabi Banerjee, Vivek Chandra Verma, Suvana Sukumaran, Malamal Alickal Sarath Chandran, Kodigal A. Gopinath, Govindarajan Venkatesh, Sushil Kumar Yadav, Vinod Kumar Singh, Neeraj Kumar Awasthi
Summary: By 2050, the global population is expected to reach 9-10 billion, leading to an increased demand for food in many countries. Various abiotic stresses such as temperature, soil salinity, and moisture have negative effects on plant growth and development at different levels. Plant nutrition proves to be an effective strategy to mitigate abiotic stresses in crops. This article discusses the effectiveness of different nutrients in alleviating abiotic stress.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
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.
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
Environmental Sciences
Yahya Ulusoy, Ayse Hilal Ulukardesler, Ridvan Arslan, Yucel Tekin
Summary: Studies on biogas production from different organic materials in anaerobic conditions are conducted worldwide, with key parameters including raw material potential, production processes, economic analysis, and environmental impacts. Chicken manure is a significant raw material in biogas production, with research showing the potential for producing 8.58 million m(3) of biogas annually from processing about 110,000 tons of waste. This process also generates 17 GWh/year of electricity, 16 GWh/year of thermal energy, and reduces CO2 emissions by 13.86 thousand tons/year.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Environmental
Thalita Gouveia Castilho, Jose Alberto Domingues Rodrigues, Joan Garcia, Eduardo Lucas Subtil
Summary: In recent years, research has shown that the addition of conductive materials can significantly improve anaerobic digestion and methane production. However, there are still questions regarding the mechanism and impact of material properties on methanogenic pathways. A systematic review and statistical analysis of recent studies found that the use of conductive materials is associated with changes in the microbial community and that millimeter-scale materials may be more effective in increasing methane production. Overall, the use of conductive materials shows promise in improving anaerobic digestion and methane production.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Agricultural Engineering
Zahra Al Hasani, Jagdeep Kumar Nayak, Halima Alhimali, Abdullah Al-Mamun
Summary: The study found that the use of conductive additive GAC/nZVI in anaerobic digestion process can significantly increase the biogas production and methane generation, as well as improve the removal rate of COD.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)