Article
Engineering, Chemical
E. J. Parente, J. P. C. Marques, I. C. Rios, J. A. Cecilia, E. Rodriguez-Castellon, F. M. T. Luna, C. L. Cavalcante
Summary: Adding value through co-products and integrating with the oleochemical industry can enhance the competitiveness of the biodiesel industry, especially for novel products like biolubricants. The synthesis of biolubricants from soybean oil was evaluated using different reactions to produce a range of potential samples with varying properties. A feasible industrial process for producing biolubricants from soybean oil, involving 16 units, was proposed in this study.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Agricultural Engineering
Reda Z. K. Hussein, Nahed K. Attia, Mai K. Fouad, Shakinaz T. ElSheltawy
Summary: Waste cooking oil was used to synthesize biolubricant, with optimized conditions achieving the highest conversion rate. The structural and thermal properties of the produced biolubricant were tested, showing compliance with ISO VG68 viscosity grade and better low temperature applicability. Simulation results demonstrated the industrial applicability of the studied biolubricant production process using different models on Aspen HYSYS program version 9.
BIOMASS & BIOENERGY
(2021)
Article
Green & Sustainable Science & Technology
Ratanaporn Leesing, Theerasak Somdee, Siraprapha Siwina, Yuvarat Ngernyen, Khanittha Fiala
Summary: In this study, a novel integrated biorefinery concept was proposed for efficient utilization of waste coconut meal. The results showed that dilute acid hydrolysis and direct sulfonation could effectively convert the feedstock into valuable products such as yeast oil, sulfonated carbon catalyst, and biodiesels with high yields. This approach holds promise for sustainable production of multiple products through waste-to-energy strategy.
Article
Chemistry, Multidisciplinary
Hossein Jahromi, Sushil Adhikari, Poulami Roy, Madison Shelley, Ehsan Hassani, Tae-Sik Oh
Summary: This study proposes a novel approach to produce biolubricants through the reaction between waste cooking oil and cyclic oxygenated hydrocarbons. The resulting biolubricants have long hydrocarbon chains, low unsaturation, naphthenic rings, and polar molecules, demonstrating good pour-point, viscosity, viscosity index, and volatility properties.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Energy & Fuels
Helen Lugo-Mendez, Marisol Sanchez-Dominguez, Mauricio Sales-Cruz, Roberto Olivares-Hernandez, Raul Lugo-Leyte, Alejandro Torres-Aldaco
Summary: In this study, biodiesel was produced from coconut oil using sodium hydroxide as a catalyst, and its characteristics and applicability were analyzed. The physicochemical properties of coconut oil and biodiesel, as well as the cold flow properties of coconut biodiesel, were determined. The influence of biodiesel content on the density, kinematic viscosity, and heating value of biodiesel blends was also evaluated and predicted using a regression model.
Article
Engineering, Environmental
Nova Rachmadona, Yusuke Harada, Jerome Amoah, Emmanuel Quayson, Martha Aznury, Shinji Hama, Akihiko Kondo, Chiaki Ogino
Summary: This study focused on utilizing waste from the palm oil industry to produce biodiesel. By using palm acid oil and bioethanol obtained from the distillation of artificial palm sap as feedstock, the researchers were able to achieve efficient synthesis of fatty acid ethyl ester using immobilized TLL on coconut shell charcoal as the biocatalyst. The findings demonstrate the potential of an integrated approach to biorefinery operations, which can contribute to sustainable utilization of palm oil waste and cost reduction in the process.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Environmental Sciences
Pfano Musetsho, Nirmal Renuka, Abhishek Guldhe, Poonam Singh, Kriveshin Pillay, Ismail Rawat, Faizal Bux
Summary: Microalgae such as Acutodesmus obliquus show potential for lipid production for biodiesel application, with poultry litter and municipal wastewater as nutrient sources. Pre-treated poultry litter extract (PPLE) resulted in higher biomass production and nutrient removal compared to raw poultry litter extract (RPPE). The use of lipid extracted biomass (LEA) as fertilizer for mung bean crops showed improvements in plant growth and soil microbial activity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
Shuang Wang, Yerkebulan Mukhambet, Sivakumar Esakkimuthu, Abd EL-Fatah Abomohra
Summary: This article discusses the challenges and advantages of commercializing microalgal biofuels, focusing on the integration of different production pathways to increase energy output and reduce production costs. The study also emphasizes the integration of bioproducts with fuels.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Green & Sustainable Science & Technology
Yasmi Louhasakul, Laura Treu, Panagiotis G. Kougias, Stefano Campanaro, Benjamas Cheirsilp, Irini Angelidaki
Summary: This study presents an integrated biorefinery concept combining aerobic fermentation of palm oil mill effluents for lipid production and anaerobic digestion for biogas production. Pasteurization of the wastewater before fermentation is essential for efficient lipid production. The study also found dominant bacteria and archaea responsible for acetate, butyrate, hydrogen, and biomethane production in the biogas reactor.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Green & Sustainable Science & Technology
Asif Afzal, Roji George Roy, Chacko Preno Koshy, Y. Alex, Mohamed Abbas, Erdem Cuce, R. K. Abdul Razak, Saboor Shaik, C. Ahamed Saleel
Summary: This work compares the production and characterization of sustainable biodiesel fuel made from waste plastics and virgin coconut oil. Chemical tests including FTIR spectroscopy, TGA, and GCMS were performed for characterization. The emissions and performance of this fuel were investigated for use in diesel engines. RSM and ANN models were used to design experiments and model the relationship between input and output parameters. The results showed that both RSM and ANN were excellent modelling techniques with good accuracy, and ANN's prediction performance was somewhat better than RSM's.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
Humzaa Imtiaz Ullah, Rofice Dickson, Enrico Mancini, Alina Anamaria Malanca, Manuel Pinelo, Seyed Soheil Mansouri
Summary: A study was conducted to design and analyze an integrated biodiesel biorefinery using a circular economy approach to achieve better economics and a zero-waste scenario. Different scenarios were evaluated based on profitability, sensitivity, and environmental analysis, with one scenario showing the highest profitability and another showing the least. Improvements were implemented to reduce waste production and enhance sustainability.
JOURNAL OF CLEANER PRODUCTION
(2022)
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
Felipe J. Villalobos-Delgado, Luigi di Bitonto, Hilda E. Reynel-Avila, Didilia I. Mendoza-Castillo, Adrian Bonilla-Petriciolet, Carlo Pastore
Summary: This study focused on extracting lipids from primary sewage sludge using ethyl esters as solvents, with ethyl butyrate showing the best separation performance. Pure calcium soaps can be extracted in high amounts, while the residual aqueous phase is not significantly contaminated and can be easily anaerobically digested. The calcium soaps can be used as biolubricant or converted into biodiesel with a catalyst, aluminum chloride hexahydrate, showing a high yield of 85%.
Article
Green & Sustainable Science & Technology
Soo-Kyeong Jang, Chan-Duck Jung, Hyolin Seong, Suwan Myung, Hoyong Kim
Summary: Mandarin peel waste, a representative agricultural waste, has been successfully converted into high value-added products through an integrated biorefinery, reducing the waste mass and minimizing environmental damage.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Seham M. Hamed, Hassan I. El Shimi, Jesper R. van Dijk, Ahmed I. Osman, Shereen Magdy Korany, Hamada AbdElgawad
Summary: The combination of heavy metal removal and biodiesel production by microalgae shows promising potential. The study found that exposure to heavy metals reduced microalgae growth but increased heavy metal removal efficiency, as well as lipid production. Economic assessment showed that daily 1000-tonne biodiesel production from microalgae is viable with high returns on investment and a short payback period.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Telecommunications
Antonio Cuadra, Javier Aracil
TELECOMMUNICATION SYSTEMS
(2017)
Article
Energy & Fuels
Abderrahim Bouaid, Hassan Acherki, Alicia Garcia, Mercedes Martinez, Jose Aracil
Article
Biotechnology & Applied Microbiology
Marcos Sanchez, Jorge Mario Marchetti, Mercedes Martinez, Jose Aracil
BIOFUELS BIOPRODUCTS & BIOREFINING-BIOFPR
(2018)
Article
Computer Science, Information Systems
Eduardo Miravalls-Sierra, David Muelas, Javier Ramos, Jorge E. Lopez de Vergara, Daniel Morato, Javier Aracil
COMPUTER COMMUNICATIONS
(2018)
Article
Computer Science, Hardware & Architecture
Javier Ramos, David Muelas, Jorge E. Lopez de Vergara, Javier Aracil
Article
Computer Science, Hardware & Architecture
Jose Luis Garcia-Dorado, Javier Ramos, Miguel Rodriguez, Javier Aracil
JOURNAL OF NETWORK AND COMPUTER APPLICATIONS
(2018)
Article
Computer Science, Information Systems
Rafael Leira, Javier Aracil, Jorge E. Lopez de Vergara, Paula Roquero, Ivan Gonzalez
OPTICAL SWITCHING AND NETWORKING
(2018)
Editorial Material
Engineering, Electrical & Electronic
Javier Aracil
IEEE TECHNOLOGY AND SOCIETY MAGAZINE
(2018)
Article
Computer Science, Information Systems
Carlos Vega Moreno, Eduardo Miravalls Sierra, Guillermo Julian Moreno, Jorge E. Lopez de Vergara, Eduardo Magana, Javier Aracil
INTERNATIONAL JOURNAL OF NETWORK MANAGEMENT
(2018)
Article
Computer Science, Information Systems
Jose Luis Garcia-Dorado, Javier Aracil
COMPUTER COMMUNICATIONS
(2019)
Article
Computer Science, Information Systems
Daniel Perdices, Jose Luis Garcia-Dorado, Javier Ramos, Rodrigo De Pool, Javier Aracil
Summary: This article introduces the alerting module for time series in network monitoring systems, and discusses how to transform the task of monitoring anomalies into an unsupervised task in order to reduce the workload of network managers. By developing a player of real anomalies and considering the network managers' workforce as a parameter for configuring thresholds of the alerting module, a novel approach is proposed.
Article
Computer Science, Information Systems
Paula Roquero, Javier Aracil
Summary: In response to the challenges posed by the increasing size and complexity of networks, a flexible multi-threaded SNMP manager architecture has been proposed to reduce the hardware resources needed and handle different data representations. Additionally, adaptive polling algorithms have been proposed to decrease CPU load on agents while maintaining the desired polling rate for fast agents. Several real-world use cases have demonstrated the benefits of these approaches through extensive measurement campaigns.
Proceedings Paper
Computer Science, Hardware & Architecture
Rafael Leira, Lluis Gifre, Ivan Gonzalez, Jorge E. Lopez de Vergara, Javier Aracil
PROCEEDINGS OF THE 2019 22ND CONFERENCE ON INNOVATION IN CLOUDS, INTERNET AND NETWORKS AND WORKSHOPS (ICIN)
(2019)
Proceedings Paper
Computer Science, Software Engineering
Carlos Vega, Javier Aracil, Eduardo Magana
2018 26TH INTERNATIONAL CONFERENCE ON SOFTWARE, TELECOMMUNICATIONS AND COMPUTER NETWORKS (SOFTCOM)
(2018)
Article
Computer Science, Information Systems
Eduardo Miravalls-Sierra, David Muelas, Jorge E. Lopez de Vergara, Javier Ramos, Javier Aracil
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)