Article
Energy & Fuels
Ali Sarosh Khawaja, Muhammad Ayman Zaheer, Ali Ahmad, Asif Ali Mirani, Zulfiqar Ali
Summary: Factors such as higher fuel prices, limited fossil fuel resources, and the negative impact of fossil fuels on global warming have made the search for an unconventional sustainable energy source necessary. Biodiesel has gained attention due to its similar properties to fossil fuels and its synthesis from edible and non-edible oils. The heterogeneous catalyst calcium oxide has shown potential for sustainable biodiesel production due to its abundance, low cost, and high activity. Nanotechnology can further improve the catalytic activity of calcium oxide, making it a promising catalyst for biodiesel production.
Review
Engineering, Environmental
Nabilah Atiqah Zul, Shangeetha Ganesan, Tuan Sherwyn Hamidon, Wen-Da Oh, M. Hazwan Hussin
Summary: The high cost of biodiesel production is a major obstacle, leading to interest in using waste materials as catalysts for ester exchange. Heterogeneous catalysts, particularly CaO, show promise for enhancing catalytic activity and durability in the transesterification process. This approach not only reduces production costs but also has environmental benefits by utilizing waste materials.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Green & Sustainable Science & Technology
Vinicius Mateo e Melo, Gabriela Filipini Ferreira, Leonardo Vasconcelos Fregolente
Summary: This article discusses the challenges faced in biodiesel production and the advantages of using heterogeneous catalysts. Research has shown that catalysts derived from sugarcane bagasse biochar have good activity and stability, and can be reused for multiple cycles. However, further studies are needed to reduce calcium ion leaching and explore the potential of using catalysts derived from sugarcane bagasse biochar.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2024)
Article
Green & Sustainable Science & Technology
Lea Nahas, Eliane Dahdah, Samer Aouad, Bilal El Khoury, Cedric Gennequin, Edmond Abi Aad, Jane Estephane
Summary: Cheap CaO catalysts were prepared from waste scallop seashells and used for biodiesel production from sunflower oil. The catalyst showed a high FAME yield of 97% and maintained its activity in repeated use experiments. These findings suggest the promising potential of this catalyst for biodiesel production and industrial applications.
Article
Green & Sustainable Science & Technology
Manolito E. Bambase, Rober Angelo R. Almazan, Rex B. Demafelis, Marisa J. Sobremisana, Lisa Stephanie H. Dizon
Summary: The study investigated the use of OH-impregnated CaO as a catalyst in converting refined coconut oil into biodiesel, demonstrating the importance of catalyst in the conversion process. By optimizing factors such as NaOH concentration, calcination temperature, and time, a high conversion rate can be achieved. Additionally, the use of a cosolvent can further increase the conversion rate.
Article
Energy & Fuels
Tongxin Qu, Shengli Niu, Xiangyu Zhang, Kuihua Han, Chunmei Lu
Summary: This study synthesized calcium modified Zn-Ce/Al2O3 heterogeneous base catalysts through three different methods and applied them in biodiesel production. The catalyst synthesized by the hydrothermal method exhibited the best catalytic performance, and showed good reusability with high biodiesel yield even after multiple cycles.
Article
Agricultural Engineering
S. Sivanesh, K. N. Aswin, Alan Antony, Mohan Surya Varma, Arya Lekshmi, K. Kamalesh, M. Naageshwaran, S. Soundarya, Sindhu Subramanian
Summary: This study investigated the production of biodiesel from Euglena Sanguinea microalgae and custard apple using nano CaO as a heterogeneous catalyst. Different solvents were used for oil extraction, and response surface methodology was employed to determine optimal process variables. Characterization of biodiesel was done using GC-MS, and kinetic studies suggested a pseudo-first order reaction for the optimized condition of algal oil and seed oil.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Physical
Zhipeng Li, Shengli Niu, Kuihua Han, Yingjie Li, Yongzheng Wang, Chunmei Lu, Shiqing Cheng
Summary: The study investigates the influences of methanol pre-adsorption on the CaO(100) surface in transesterification, showing that pre-adsorption of methanol can enhance the activation effect and promote the transesterification process.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Green & Sustainable Science & Technology
Martin Gojun, Anita Salic, Bruno Zelic
Summary: Competition among renewable energy sources is rapidly growing in the market, with an integrated biodiesel production process combining lipase-catalyzed transesterification and product purification in microreactors and micro-separators showing promising results.
Article
Engineering, Chemical
Siti Aminah Mohd Johari, Muhammad Ayoub, Abrar Inayat, Sami Ullah, Maliha Uroos, Salman Raza Naqvi, Sarah Farukkh
Summary: This article introduces the necessity of shifting energy technologies towards renewable energy sources, particularly dairy waste. The compositions of dairy waste can be used as feedstock for biodiesel production with the presence of specific catalysts. Furthermore, catalysts derived from waste sources can enhance sustainability.
CHEMBIOENG REVIEWS
(2022)
Review
Chemistry, Physical
Mohammed Salaheldeen, Abdalbasit Adam Mariod, Mohamed Kheireddine Aroua, S. M. Ashrafur Rahman, Manzoore Elahi M. Soudagar, I. M. Rizwanul Fattah
Summary: Triglycerides, derived from natural sources such as virgin vegetable oils and animal fats, are the main components used for biodiesel production. Biodiesel, considered an attractive alternative fuel to diesel with environmental advantages, is typically produced through transesterification. Commercialization of biodiesel is limited by high production costs, with the transesterification route being a crucial factor. Various modifications to the conventional method and innovative technologies have been proposed to improve biodiesel production efficiency and lower costs.
Article
Multidisciplinary Sciences
Nur Afiqah Ali, Nozieana Khairuddin, Tengku Sharifah Marliza Tengku Azmi, Md Bazlul Mobin Siddique
Summary: This study aims to investigate the use of eggshells as catalysts in biodiesel production through the transesterification process. The results show that 1 wt% catalyst loading has the highest fatty acid methyl ester production compared to other loadings.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Chemistry, Physical
Jiadi Liu, Minghuan Liu, Shaoyun Chen, Bingqing Wang, Jin Chen, Da-Peng Yang, Shangzhou Zhang, Wenxiao Du
Summary: The use of waste eggshells to develop CaO/Au nanocatalyst for transesterification reaction between soybean oil and methanol showed superior catalytic activity and good recyclability.
GREEN ENERGY & ENVIRONMENT
(2022)
Review
Energy & Fuels
Francisco Thalysson Tavares Cavalcante, Francisco Simao Neto, Italo Rafael de Aguiar Falca, Jose Erick da Silva Souza, Lourembergue Saraiva de Moura Junior, Patrick da Silva Sousa, Thales Guimaraes Rocha, Isamayra Germano de Sousa, Pedro Henrique de Lima Gomes, Maria Cristiane Martins de Souza, Jose C. S. dos Santos
Summary: This article discusses the key issues in enzyme-catalyzed biodiesel production, including addressing challenges in the production process and improving efficiency. This includes using lipases as substitutes for chemical catalysts and solving these problems by using low-cost raw materials, new supports, and optimized design.
Article
Green & Sustainable Science & Technology
Marko Racar, Ivana Soljic Jerdic, Zoran Glasovac, Ante Jukic
Summary: In this study, ten guanidine derivatives were investigated as catalysts for biodiesel production. The most active catalyst was selected and process optimization was conducted using a design of experiments and response surface methodology. The resulting optimal conditions were verified and the obtained biodiesel was characterized for its physicochemical and application properties.
Article
Environmental Sciences
Yunfeng Xu, Jiangpeng Li, Wei Xia, Ying Sun, Guangren Qian, Jia Zhang
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Green & Sustainable Science & Technology
Jiachen Zeng, Yang Yue, Qi Gao, Jia Zhang, Jizhi Zhou, Yun Pan, Guangren Qian, Jie Tang, Jianbo Ruan
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Engineering, Environmental
Yali Cao, Wei Zhang, Xia Wang, Liang Wu, Guangren Qian
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
(2019)
Article
Chemistry, Physical
Xiaoli Wang, Weiye Zhang, Qi Gao, Yuanjian Wang, Jia Zhang, Jizhi Zhou, Qiang Liu, Guangren Qian
APPLIED SURFACE SCIENCE
(2019)
Article
Biophysics
Mengxue Li, Yasmina Sultanbawa, Zhi Ping Xu, Wenyi Gu, Weiyu Chen, Jianyong Liu, Guangren Qian
COLLOIDS AND SURFACES B-BIOINTERFACES
(2019)
Article
Environmental Sciences
Yu Shang, Mingyuan Liu, Tiantian Wang, Lu Wang, Huixin He, Yufang Zhong, Guangren Qian, Jing An, Tong Zhu, Xinghua Qiu, Jing Shang, Yingjun Chen
ENVIRONMENTAL POLLUTION
(2019)
Article
Environmental Sciences
Yunfeng Xu, Xin Wang, Yu Fu, Fanglu Hu, Guangren Qian, Qiang Liu, Ying Sun
ENVIRONMENTAL TECHNOLOGY
(2020)
Article
Green & Sustainable Science & Technology
Ying Sun, Qian Yang, Yang Zhang, Lanying Ge, Yunfeng Xu, Guangren Qian
JOURNAL OF CLEANER PRODUCTION
(2019)
Article
Environmental Sciences
Yang Yue, Jia Zhang, Fucheng Sun, Simiao Wu, Yun Pan, Jizhi Zhou, Guangren Qian
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Engineering, Environmental
Zeyuan Liu, Yang Yue, Ming Lu, Jia Zhang, Fucheng Sun, Xin Huang, Jizhi Zhou, Guangren Qian
Article
Engineering, Environmental
Xin Huang, Xujie Zhou, Qingqing Su, Jizhi Zhou, Guangren Qian, Naiyun Gao, Jizi Liu
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Environmental Sciences
Yang Yue, Zeyuan Liu, Zhongzhe Liu, Jia Zhang, Min Lu, Jizhi Zhou, Guangren Qian
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Engineering, Environmental
Yu Shang, Meiying Wu, Jizhi Zhou, Xing Zhang, Yufang Zhong, Jing An, Guangren Qian
JOURNAL OF HAZARDOUS MATERIALS
(2019)
Review
Agricultural Engineering
Xiuxiu Ruan, Yuqing Sun, Weimeng Du, Yuyuan Tang, Qiang Liu, Zhanying Zhang, William Doherty, Ray L. Frost, Guangren Qian, Daniel C. W. Tsang
BIORESOURCE TECHNOLOGY
(2019)
Article
Environmental Sciences
Gaorong Wang, Jia Zhang, Jizhi Zhou, Guangren Qian
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
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)
