Article
Energy & Fuels
Fengchao Zha, Min Shi, Hui Li, Jiajia Rao, Bingcan Chen
Summary: By encapsulating lipase into metal-organic frameworks, the affinity between the enzyme and substrate is improved, leading to higher biodiesel yield and substrate selectivity. The biocomposites also show reasonable reusability.
Article
Agricultural Engineering
Sri Divya Kuravi, S. Venkata Mohan
Summary: In this study, Monoraphidium sp. SVMIICT6 was cultivated in a flat-panel photobioreactor to treat synthetic dairy wastewater. The results showed high removal efficiencies of COD, nitrates, and phosphates, as well as the production of abundant biomass.
BIORESOURCE TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Walid Kamal Abdelbasset, Saud M. Alrawaili, Shereen H. Elsayed, Tazeddinova Diana, Sami Ghazali, Bassem F. Felemban, Mohammed Zwawi, Mohammed Algarni, Chia-Hung Su, Hoang Chinh Nguyen, Omar Mahmoud
Summary: There is a growing attention to bio and renewable energies due to the depletion of fossil fuels and global warming. In this study, a modeling and simulation method using artificial intelligence (AI) was developed to predict the production of bioenergy from vegetable bean oil. Various AI methods were applied to predict the yield of Fatty acid methyl esters (FAME) production, and the models were evaluated using different metrics. The results showed high accuracy and the boosted SVR and ANN models demonstrated better prediction efficiency.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Rajen Kundu, Suranjan De
Summary: Nuclear magnetic resonance (NMR) spectroscopy was used to study the triglyceride transesterification process and characterize the biodiesel waste products. Detailed NMR studies were performed to analyze the reaction mixture and products. The zero-waste valorization of biodiesel waste involves purification of low-value byproducts into high-value products and the utilization of fatty acids and esters for surfactant preparation. This approach contributes to resource management and sustainable development.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Green & Sustainable Science & Technology
Chee Yoong Chooi, Jia Huey Sim, Shiau Foon Tee, Zhi Hua Lee
Summary: The research focuses on developing a kinetic mechanism for biodiesel production catalyzed by a CaO nanocatalyst derived from waste cockle shells via thermal hydration-dehydration treatment. The transesterification reaction follows a Langmuir-Hinshelwood kinetic mechanism with surface reaction as the rate-limiting step, offering a relatively low activation energy and high FAME yield. The optimal conditions for preparing the nano CaO catalyst and conducting transesterification reactions were investigated and demonstrated promising results for potential industrial applications.
Article
Biotechnology & Applied Microbiology
Nur Hidayah Mat Yasin, Nur Nadiah Che Aziz, Muhammad Badrun Amin Azmai, Mohamad Fitri Mohd Hanapi
Summary: This study investigated the effect of different solvents on the production of fatty acid methyl esters (FAMEs) from Chlorella vulgaris using two different methods of transesterification: direct transesterification (d-trans) and extraction transesterification (ext-trans). Different solvents were expected to lead to different amounts of FAMEs. Two solvents (methanol and ethanol) with volumes of each of 10,12 and 14 mL were selected to produce higher amounts of FAMEs.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Green & Sustainable Science & Technology
Jun Mann Loh, Amelia, Wail Gourich, Chien Lye Chew, Cher Pin Song, Eng-Seng Chan
Summary: This study demonstrated an economical and sustainable enzymatic process for converting sludge palm oil into high-quality biodiesel using a low-cost liquid lipase. The results showed that a high ester content of approximately 94 wt% crude biodiesel could be produced under low-input process conditions with a low enzyme concentration and methanol-to-oil molar ratio at a low operating temperature.
Article
Energy & Fuels
Ke Li, Jie Chen, Xiao-an Nie
Summary: The study shows that glycerol in pre-esterification of waste oil can reduce the acid value to a lower level in one step, and the optimized process conditions obtained through orthogonal experiment can achieve high conversion rate and good environmental protection, making it easier to realize the continuous synthesis of biodiesel from waste oil with high acid.
Article
Energy & Fuels
Kanokphorn Sangkharak, Suphornthip Mhaisawat, Thanaphorn Rakkan, Nisa Paichid, Tewan Yunu
Summary: By utilizing mixed chicken waste for oil extraction and employing a combination of immobilized enzymes for biodiesel production, the study achieved high yields of methyl ester that met both Thai and international specifications.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Ramachandran Sivaramakrishnan, Subramaniyam Suresh, Aran Incharoensakdi
Summary: This study utilized Scenedesmus sp. to produce methyl ester and itaconic acid through direct transesterification and hydrolysis with optimized conditions. The yield of methyl ester reached 93% under optimized parameters, and the obtained methyl ester showed satisfactory fuel properties. The hydrolysate from the spent biomass was used for itaconic acid production with improved yields by altering the MgSO4 concentration and adding TCA cycle metabolites.
Article
Chemistry, Multidisciplinary
Kotohiro Nomura, Tomoyuki Aoki, Yuriko Ohki, Soichi Kikkawa, Seiji Yamazoe
Summary: Cp'TiCl3 catalyst exhibits highly active and exclusive transesterification of methyl 10-undecenoate with alcohols at elevated temperatures, and enables the depolymerization of poly(ethylene adipate).
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Min Ying Liow, Wail Gourich, Mun Yuen Chang, Jun Mann Loh, Eng-Seng Chan, Cher Pin Song
Summary: The use of enzymes in biodiesel production has gained attention due to environmental sustainability. However, challenges such as mass transfer limitations and slow reaction exist. To overcome these, various technologies have been used to intensify enzymatic biodiesel production. This paper reviews conventional intensification technologies and their impact on biodiesel production performance. Ultrasonic irradiation and microreactor technologies showed the best improvement and scale-up potential.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Review
Energy & Fuels
Carsten Wedler, J. P. Martin Trusler
Summary: Biodiesel fuels are comprised of a mixture of different fatty acid esters, which have significant effects on combustion and storage. This study reviews the available experimental data on density and viscosity of fatty acid methyl, ethyl, and butyl esters and identifies gaps in the literature. The research includes 16 different esters from three ester families and provides an overview of generalized models for describing density and viscosity at elevated pressures.
Article
Energy & Fuels
Favour Okechi Ifeanyi-Nze, Ejiro Thelma Akhiehiero
Summary: The synthesis of biolubricants from renewable feedstocks is necessary to mitigate the environmental hazards posed by petroleum-based lubricants. This study optimized the production process of biodegradable lubricant basestock using Jatropha curcas seed oil as a renewable feedstock. Results showed that under the optimal reaction conditions, the yield of jatropha biolubricant was 94.12%, which met the requirements set by the International Organization for Standardization. The statistical model used in this study accurately predicted the biolubricant output.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Shazia Perveen, Muhammad Asif Hanif, Razyia Nadeem, Umer Rashid, Muhammad Waqar Azeem, Muhammad Zubair, Numrah Nisar, Fahad A. Alharthi, Bryan R. Moser
Summary: This study explores the conversion of sunflower, mustard, and pearl millet seed oils into biodiesel with superior fuel properties. Mustard seed oil yielded the highest biodiesel production with ideal cloud and pour points for commercial application.
Article
Microbiology
Siti Fatihah Salleh, Azlina Kamaruddin, Mohamad Hekarl Uzir, Khairiah Abd Karim, Abdul Rahman Mohamed
ARCHIVES OF MICROBIOLOGY
(2016)
Article
Engineering, Chemical
Fadzil Noor Gonawan, Azlina Harun Kamaruddin, Mohamad Zailani Abu Bakar, Khairiah Abd Karim
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2016)
Article
Chemistry, Physical
Joni Agustian, Azlina Harun Kamaruddin
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2016)
Article
Biotechnology & Applied Microbiology
Siti Fatihah Salleh, Azlina Kamaruddin, Mohamad Hekarl Uzir, Abdul Rahman Mohamed, Abdul Halim Shamsuddin
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2017)
Article
Biochemistry & Molecular Biology
Saeedeh L. Gilani, Ghasem D. Najafpour, Aliakbar Moghadamnia, Azlina Harun Kamaruddin
JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC
(2016)
Article
Biochemical Research Methods
Siti Fatihah Salleh, Azlina Kamaruddin, Mohamad Hekarl Uzir, Abdul Rahman Mohamed, Abdul Halim Shamsuddin
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
Joni Agustian, Azlina Harun Kamaruddin, Hassan Y. Aboul-Enein
Article
Chemistry, Multidisciplinary
Fadzil Noor Gonawan, Mohamad Zailani Abu Bakar, Khairiah Abd Karim, Azlina Harun Kamaruddin
Article
Engineering, Chemical
Fadzil Noor Gonawan, Mohamad Zailani Abu Bakar, Khairiah Abd Karim, Azlina Harun Kamaruddin
CHEMICAL ENGINEERING COMMUNICATIONS
(2019)
Article
Multidisciplinary Sciences
Lau Sin Mun, Masrina Mohd Nadzir, Shiplu Roy Chowdhury, Mohd Fauzi Mh Busra, Azlina Harun Kamaruddin, Gong Wee Jie
INTERNATIONAL JOURNAL OF ADVANCED AND APPLIED SCIENCES
(2019)
Proceedings Paper
Education, Scientific Disciplines
Nor Irwin Basir, Mohamad Zailani Abu Bakar, Azlina Harun Kamaruddin
2017 7TH WORLD ENGINEERING EDUCATION FORUM (WEEF)
(2017)
Article
Chemistry, Medicinal
Joni Agustian, Azlina Harun Kamaruddin, Hassan Y. Aboul-Enein
Article
Chemistry, Medicinal
Joni Agustian, Azlina Harun Kamaruddin, Hassan Y. Aboul-Enein
Article
Engineering, Multidisciplinary
S. L. Gilani, G. D. Najafpour, A. Moghadamnia, A. H. Kamaruddin
INTERNATIONAL JOURNAL OF ENGINEERING
(2016)
Proceedings Paper
Energy & Fuels
Siti Fatihah Salleh, Azlina Kamaruddin, Mohamad Hekarl Uzir, Abdul Rahman Mohamed, Abdul Halim Shamsuddin
INTERNATIONAL CONFERENCE ON ADVANCES IN RENEWABLE ENERGY AND TECHNOLOGIES (ICARET 2016)
(2016)
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)