Article
Green & Sustainable Science & Technology
Rufis Fregue Tiegam Tagne, Remo Santagata, Donald Raoul Tchuifon Tchuifon, Junie Albine Kenfack Atangana, Francois Rene Ateba, Teodor Vintila, Nche George Ndifor-Angwagor, Solomon Gabche Anagho, Sergio Ulgiati
Summary: This study focuses on the environmental impact assessment of second-generation liquid and gaseous biofuel production in Cameroon, utilizing the Life Cycle Assessment method to identify hotspots in the conversion of biomass to bioethanol and biomethane. The findings will serve as a reference for decision-making in pilot plants and large-scale production, aiming to promote sustainable development of a biomass-energy industry based on avocado seeds, cocoa pods, and peanut shells.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Piradee Jusakulvijit, Alberto Bezama, Daniela Thraen
Summary: The study confirms the potential for decentralized second-generation bioethanol production in Thailand, with the northeast region being the highest producer and Nakhon Ratchasima province producing the most bioethanol. The availability of regional residues suggests that decentralizing production facilities is feasible in the country.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Agricultural Engineering
Marvin Scherzinger, Martin Kaltschmitt, Amr Y. Elbanhawy
Summary: The cultivation of field crops produces organic residues which can be used for biogas production, but this requires operators to have sufficient expertise to avoid overload. Laboratory testing determined the anaerobic degradability of various Egyptian agricultural residues, and a model was developed to estimate biogas production.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Sungchan Oh, Jinha Jung, Guofan Shao, Gang Shao, Joey Gallion, Songlin Fei
Summary: The forest canopy height model (CHM) is a crucial tool for analyzing forest stocking and its spatiotemporal variations. This study presents a high-resolution CHM generation method using U.S. Geological Survey (USGS) LiDAR data for the entire state of Indiana, USA. The accuracy of the CHM was validated through comparison with field-based height measurements. Furthermore, the resulting CHM can serve as critical baseline information for monitoring and management decisions, as well as the calculation of other key forest metrics.
Review
Environmental Sciences
Mani Jayakumar, Gadissa Tokuma Gindaba, Kaleab Bizuneh Gebeyehu, Selvakumar Periyasamy, Abdisa Jabesa, Gurunathan Baskar, Beula Isabel John, Arivalagan Pugazhendhi
Summary: Bioenergy is gaining popularity as a renewable energy source, offering potential solutions to rising energy costs and providing income opportunities for disadvantaged farmers and rural populations worldwide. Bioethanol derived from agricultural residual-biomass presents unique environmental, socioeconomic, and strategic benefits, serving as a safe and cleaner alternative to traditional fossil fuels. Significant progress has been made towards efficient fuel ethanol production from agricultural lignocellulosic materials (ALCM), utilizing pretreatment, enzymes, and fermentation techniques. The review also discusses the state of ALCM-based bioethanol production methods, facilitating proper utilization of agricultural leftovers.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Joshua Kirshner, Eleanor Brown, Lynda Dunlop, Kelly Redeker, Fernanda Veneu, Sally Brooks, Shannon Kirshner, Paul H. Walton
Summary: This article examines the early example of lignocellulosic ethanol production in a bioethanol refinery in Alagoas, Brazil, highlighting the importance of primary crops for enzyme development and potential impacts on monoculture agriculture. The study emphasizes the value of trans-disciplinary approaches in shaping scientific research and calls for involving multiple stakeholders to avoid inequalities and environmental risks.
ENVIRONMENTAL DEVELOPMENT
(2022)
Article
Biodiversity Conservation
Jorgen E. Olesen, Robert M. Rees, Sylvie Recous, Marina A. Bleken, Diego Abalos, Ishita Ahuja, Klaus Butterbach-Bahl, Marco Carozzi, Chiara De Notaris, Maria Ernfors, Edwin Haas, Sissel Hansen, Baldur Janz, Gwenaelle Lashermes, Raia S. Massad, Soren O. Petersen, Tatiana F. Rittl, Clemens Scheer, Kate E. Smith, Pascal Thiebeau, Arezoo Taghizadeh-Toosi, Rachel E. Thorman, Cairistiona F. E. Topp
Summary: Crop residues play a crucial role in carbon and nitrogen input to soils, affecting nitrous oxide emissions. The current inventory methodology only considers nitrogen inputs by crop residues, ignoring other factors and processes. Different biochemical and physical characteristics of residues contribute to variations in emissions, with immature residues having higher concentrations of mineralizable nitrogen and decomposable carbon. Accurately estimating the short-term and long-term effects of crop residues on N2O emissions requires distinguishing between mature and immature residues and considering local conditions. Better mitigation efforts and emission accounting methods are urgently needed.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Louis M. Hennequin, Karen Polizzi, Paul S. Fennell, Jason P. Hallett
Summary: The study revealed that the use of ionic liquid pretreatment technique can convert Japanese Knotweed and Rhododendron into lignocellulosic biofuel feedstocks. This process involves fractionating the biomass into a cellulose-rich pulp and lignin stream at high temperatures and short reaction times, followed by hydrolyzing cellulose into fermentable sugars which are then fermented into bioethanol as a renewable energy source.
Review
Biotechnology & Applied Microbiology
Triantafyllos Roukas, Parthena Kotzekidou
Summary: This article provides a detailed overview of the methods for producing bioethanol from food industry wastes, including pretreatment and enzymatic hydrolysis steps. By improving the conversion efficiency of lignocellulosic materials, food industry wastes can be better utilized for ethanol production, reducing waste and addressing environmental issues.
REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY
(2022)
Article
Engineering, Chemical
Oleksandr Liaposhchenko, Vitalii Marenok, Maksym Skydanenko, Ivan Pavlenko, Marek Ochowiak, Jana Mizakova, Vitalii Storozhenko, Vasyl Smyrnov, Viacheslav Shmatenko, Jan Pitel
Summary: The article discusses recent developments in the fuel industry, focusing on producing fuel bioethanol from lignocellulosic biomass through various technological modes at the rectification unit. Numerical simulation of chemical technological processes was used to study and optimize technological parameters, resulting in mixtures of bioethanol with varying impurity levels. The methodology based on the activity coefficient UNIFAC model was applied to efficiently design the plant model and simulate technological processes.
Article
Agronomy
Iria Firvida, Pablo G. del Rio, Patricia Gullon, Beatriz Gullon, Gil Garrote, Aloia Romani
Summary: This study evaluated a delignification process using lime as an alternative alkali to improve enzymatic saccharification of corn stover cellulose, leading to successful production of bioethanol. Through experimental design, optimal conditions were identified for high cellulose and xylan recovery rates, delignification efficiency, and cellulose-to-glucose conversion rate.
Article
Forestry
Cecilia Rachid-Casnati, Fernando Resquin, Leonidas Carrasco-Letelier
Summary: This study examines the sustainability of a small-scale biorefinery's wood supply chain by assessing its potential availability and environmental performance indicators. Results show that the wood production goal can maintain good environmental performance and comply with EU sustainability standards.
Article
Energy & Fuels
Akshay Shankar, Sonu Saini, Krishna Kant Sharma
Summary: In this study, Ganoderma lucidum was cultivated and investigated for its potential in ligninase production, medicinal polysaccharides, and mushroom cultivation. The results showed significant laccase production, degradation of lignin and phenols, as well as successful conversion of biomass into sugars and ethanol through enzymatic hydrolysis and fermentation. The findings suggest that fungal-integrated biorefinery process is a promising strategy in lignocellulosic biotechnology.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Review
Green & Sustainable Science & Technology
Sanjeev Kumar Soni, Apurav Sharma, Raman Soni
Summary: The careless usage of fossil fuels is the primary contributor to global warming. Due to urbanization's threat to resource depletion, finding alternatives has become necessary. Four different forms of biofuels are now available as possible replacements, including first-generation biofuels from the edible portion of biomass, second-generation biofuels from the non-edible portion, third-generation biofuels from algal biomass, and fourth-generation biofuels using molecular biology to improve algal strains. This article discusses the importance of second-generation biofuels derived from non-edible biomass and the enzymes involved in their production.
Article
Green & Sustainable Science & Technology
Ashkan Mirzaee, Ronald G. McGarvey, Francisco X. Aguilar, Erin M. Schliep
Summary: Biopower, as a significant source of renewable energy in the US, shows positive ecological conditions and carbon balances. The study found that timberland areas around biopower plants have more live and standing-dead trees, and carbon stocks compared to areas around coal-burning plants. With longer biopower generation, there is an upward trend in carbon stocks within live trees.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)