Article
Chemistry, Physical
Marina Tomasini, Mariana De Oliveira Faber, Viridiana Santana Ferreira-Leitao
Summary: Sugarcane straw is not effectively utilized in the industry currently, but sugarcane straw hemicellulose hydrolyzate (HH) shows promise as a raw material for H2 and CH4 production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
C. N. Kowthaman, V. Arul Mozhi Selvan, P. Senthil Kumar
Summary: This study evaluates lipid extraction from algae and biogas production using thermo-chemical pretreatment, finding hexane as a suitable solvent with a 1.8% yield. Sodium hydroxide was found to be the most influential on biogas yield, with a predicted maximum yield of 740 ml/gVS under optimal conditions. Pretreated algae and corn husk produced 60% higher biogas yield than untreated algae, showing potential for mass application.
Article
Chemistry, Physical
Juan F. Gonzalez, Ana I. Parralejo, Jeronimo Gozalez, Andres Alvarez, Eduardo Sabio
Summary: This study evaluated the biogas production and quality from four different biomasses in different batch reactors, revealing variations in methane yields from different biomasses and successfully applied various models to assess the kinetic parameters of methane production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Thermodynamics
Kavosh Karami, Keikhosro Karimi, Safoora Mirmohamadsadeghi, Rajeev Kumar
Summary: This study investigated the effects of biological pretreatment on biogas production from lignocellulosic biomass and studied the combination effect with other pretreatment methods. The results showed that aerobic digestion was the only pretreatment method that could individually improve methane yield from pinewood, but combining aerobic digestion with mild thermochemical pretreatment could achieve even higher methane yield.
Article
Chemistry, Physical
Nusara Sinbuathong, Boonsong Sillapacharoenkul
Summary: Biohydrogen can be produced from starch factory wastewater and mixed microorganisms through dark fermentation. The efficiency of hydrogen production is influenced by the initial pH level during fermentation, with alkaline-treated bacteria showing higher yield and production rate. No methane gas was observed in the gas mixture produced throughout the study.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Anna Lymperatou, Thor K. Engelsen, Ioannis V. Skiadas, Hariklia N. Gavala
Summary: Lignocellulosic biomass is a crucial resource for expanding biogas production, and research on pretreatment technologies to enhance biomass conversion is a rapidly growing field. This study analyzed seven different types of lignocellulosic biomass and identified key characteristics for effective pretreatment. A simple ammonia pretreatment was used as a case study and partial least squares regression was employed to model the methane yield and efficiency of the pretreatment. The results showed that lipid, ash, protein, and hemicellulose/lignin content were the most decisive factors in predicting pretreatment efficiency.
Article
Agricultural Engineering
Shuaishuai Ma, Hongliang Wang, Binshou Wang, Xiaohui Gu, Wanbin Zhu
Summary: The study demonstrated that pretreatment with CO2 and liquid digestate from anaerobic digestion can improve the glucose and xylose content of corn straw, reduce cellulose crystallinity, and increase methane yield. However, high temperature pretreatment resulted in the production of inhibitors that decreased methane production during subsequent anaerobic digestion. The changes in microbial community in the pretreated slurry at lower temperature were found to enhance the overall performance of anaerobic digestion.
BIORESOURCE TECHNOLOGY
(2022)
Review
Energy & Fuels
V Khanh Nguyen, Dhiraj Kumar Chaudhary, Ram Hari Dahal, N. Hoang Trinh, Jaisoo Kim, S. Woong Chang, Yongseok Hong, Duong Duc La, X. Cuong Nguyen, H. Hao Ngo, W. Jin Chung, D. Duc Nguyen
Summary: Anaerobic digestion (AD) of sewage sludge is an efficient remediation technique, but the presence of complex floc structures and high organic matter content hinder hydrolysis. Pretreatment techniques such as mechanical, chemical, thermal, and biological processes can accelerate hydrolysis and improve AD efficiency.
Article
Green & Sustainable Science & Technology
Shuaishuai Ma, Yuling Li, Jingxue Li, Xiaona Yu, Zongjun Cui, Xufeng Yuan, Wanbin Zhu, Hongliang Wang
Summary: This review classifies and analyzes the pretreatment technologies of lignocellulosic biomass based on different driving forces, and evaluates the combined pretreatment technologies, revealing their potential applications in the biomass energy industry.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Review
Agricultural Engineering
Jyoti Kainthola, Aditi Podder, Marcus Fechner, Ramesh Goel
Summary: This review discusses the recalcitrance of lignocellulosic biomass, various pre-treatment techniques, delignification and hydrolysis mechanisms using white-rot fungi, factors controlling the pre-treatment process, and improvement in methane production through solid-state anaerobic digestion of pre-treated lignocellulosic biomass with white-rot fungi. The future perspective of this field is also included in the review.
BIORESOURCE TECHNOLOGY
(2021)
Article
Biotechnology & Applied Microbiology
Ranjna Sirohi, V. Vivekanand, Ashutosh Kumar Pandey, Ayon Tarafdar, Mukesh Kumar Awasthi, Amita Shakya, Sang Hyoun Kim, Sang Jun Sim, Hoang A. Tuan, Ashok Pandey
Summary: The transition from fossil fuels to non-conventional sources is necessary for addressing the global energy crisis and environmental issues. Organic waste from various industries can be utilized to produce gaseous fuels through different biochemical strategies. However, current biogas and biohydrogen production practices are inefficient and require interventions to improve biofuel yield. Adding biochar has been shown to enhance gaseous fuel production by adsorbing inhibitors and activating gas-producing microorganisms. This review explores the effect of biochar on gaseous biofuel production and highlights the need for a circular bioeconomy approach.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Energy & Fuels
Gopal P. Naik, Anil K. Poonia, Parmesh K. Chaudhari
Summary: This study compared the effects of dilute alkaline and low-power microwave pretreatment on biogas yield from rice straw, with microwave pretreatment showing slightly better results.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Environmental
Durdica Kovacic, Slavko Rupcic, Davor Kralik, Daria Jovicic, Robert Spajic, Marina Tisma
Summary: This review focuses on the current status and application of pulsed electric field (PEF) technology in biogas production, covering basic principles, processing systems, lab- and pilot-scale applications, as well as the emerging technology for lignocellulose pretreatment in biogas production.
Article
Chemistry, Physical
Nusara Sinbuathong, Boonsong Sillapacharoenkul
Summary: This study investigates the pretreatment of sunnhemp to enhance biogas production, showing that pretreated sunnhemp produces 89% more methane yield than untreated sunnhemp. The potential of sunnhemp in producing biogas is high, and using sunnhemp for biogas production is recommended to reduce greenhouse gas emissions and mitigate global warming.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Agricultural Engineering
Jungsu Park, Roent Dune A. Cayetano, Gi-Beom Kim, Yura Jo, Yeelyung Kwon, Zhongfang Lei, Sang-Hyoun Kim
Summary: Alkaline-thermal pretreatment at 60 degrees Celsius and pH 10 for 24 hours resulted in higher methane yield and maximum net savings for WAS. Considering the degree of sludge disintegration and microbial growth are better indicators for predicting anaerobic digestibility performance.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan
Summary: The study shows that measuring salt removal based on chloride ion concentration is more accurate than using electrical conductivity (EC), which is not the best parameter to evaluate salt removal using algae. Additionally, there may be misrepresentation of salt removal in some studies that solely rely on EC for estimating biodesalination efficiency.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Muhammad Asad Javed, Abdul Mannan Zafar, Ashraf Aly Hassan
Summary: This study demonstrates that co-culturing indigenous bacteria with Chlorella vulgaris significantly enhances hydrogen gas production. The 1:1.5 v/v co-culture ratio achieved the highest hydrogen gas volume with minimal oxygen content. Compared to previous studies using pure bacterial cultures, the co-cultivation of algae and activated sludge shows significant improvement in hydrogen gas production.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Muhammad Nihal Naseer, Kingshuk Dutta, Asad A. Zaidi, Muhammad Asif, Ali Alqahtany, Naief A. Aldossary, Rehan Jamil, Saleh H. Alyami, Juhana Jaafar
Summary: This study conducts a scientometric analysis of the literature on polyaniline (PANI) membranes in water treatment to explore the research status, global trends, and future directions. The results show an exponential growth in publications on PANI membranes since 2005, with nanotechnology being identified as the future trend for modifying these membranes. The study provides valuable insights for early career researchers and industries in this field.
Article
Environmental Sciences
Abdul Mannan Zafar, Muhammad Asad Javed, Ashraf Aly Hassan, Endalkachew Sahle-Demessie, Stephen Harmon
Summary: This study investigated the biodesalination potential of P. keutzingianum at different levels of salinity and confirmed its ability to produce biomass, biosorb, bioaccumulate, and biomineralize in all tested salinities.
Article
Chemistry, Multidisciplinary
Muhammad Asad Javed, Abdul Mannan Zafar, Sulaiman Al-Zuhair, Amro El Badawy, Ashraf Aly Hassan
Summary: Based on experimental data, this study demonstrated that glucose supplementation is the most appropriate carbon substrate for higher H2 yield and substantial organics removal in co-culture.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Chemical
Asad A. Zaidi, Sohaib Z. Khan, Muhammad Nihal Naseer, Hamad Almohammadi, Muhammad Asif, Yasmin Abdul Wahab, Mohammad Aminul Islam, Mohd Rafie Johan, Hanim Hussin
Summary: Organic matter can be converted to energy through Anaerobic Digestion (AD), particularly for biogas production. Algae waste, which has become an environmental problem, can luckily be used as feedstock for bioenergy production. This study focuses on introducing cobalt nanoparticles (Co NPs) in the AD process to improve the energy productivity of green algae. The optimized values for Co NPs concentration, pH, and digestion temperature were found to produce the highest biogas yield of 298 ml. Experimental results showed that Co NPs had a positive influence on biogas production, with lower concentrations achieving higher yields. The modified Gompertz model confirmed the good fit between the mathematical model and experimental data, further evaluating the AD performance.
PERIODICA POLYTECHNICA-CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Farrukh Mustahsan, Sohaib Z. Khan, Asad A. Zaidi, Yaser H. Alahmadi, Essam R. Mahmoud, Hamad Almohamadi
Summary: This paper presents a modified re-entrant honeycomb auxetic structure and verifies its performance through analytical modeling, finite element analysis, and tensile testing. The results show that the newly added strut has a significant effect on the directional properties of the structure, and the structure exhibits high Young's modulus and negative Poisson's ratio in both loading directions, especially at low relative density.
Review
Environmental Sciences
Shirin P. P. Arimbrathodi, Muhammad Asad Javed, Mohamed A. A. Hamouda, Ashraf Aly Hassan, Mahmoud E. E. Ahmed
Summary: The demand for clean energy has increased due to the impact of climate change caused by excessive greenhouse gas emissions from fossil fuels. This study analyzed the production of H-2 using microalgae through bibliometric analysis and scoping review. The results showed a significant increase in research interest in bioH(2) production from microalgae in the past decade. The International Journal of Hydrogen Energy published the highest number of articles, with a significant contribution from China. The study also identified oxygen sensitivity and sulfur deprivation as the main limiting factors for bioH(2) production using microalgae, and suggested effective process modifications to improve H-2 yield.
Article
Engineering, Mechanical
Muhammad N. N. Nawaz, Sohaib Z. Z. Khan, Muhammad Asif, Abdulrahman Aljabri, Asad A. A. Zaidi, Essam R. I. Mahmoud
Summary: This research compares the simulation capabilities of the lagrangian model and Smoothed Particle Hydrodynamics model in the orthogonal dry machining of aluminum alloy. The findings show that the LAG model is good for predictions regarding cutting forces and chip morphology, while the SPH model is good for predictions regarding the shear angle and chip thickness.
Article
Environmental Sciences
M. Sherief, M. A. Javed, B. Bunker, B. Dvorak, M. A. Maraqa, A. Aly Hassan
Summary: This study utilized activated carbon to adsorb hydrogen sulfide from gas streams and regenerated it using water. The effects of parameters such as temperature, pH, and flowrate were investigated. The results showed that the highest sulfide concentration was observed at pH 5, while the maximum cumulative mass was obtained at 100 degrees C. The best removal efficiency was achieved at a flowrate of 50 mL/min.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Review
Chemistry, Analytical
Muhammad Faris Fardan, Bhre Wangsa Lenggana, U. Ubaidillah, Seung-Bok Choi, Didik Djoko Susilo, Sohaib Zia Khan
Summary: Prosthetics have made significant progress with the help of materials science, allowing the development of prosthetic devices with improved functionality and comfort. One promising area of research is the use of auxetic metamaterials in prosthetics, which have the ability to expand laterally when stretched. This property enables the creation of prosthetic devices that better fit the contours of the human body, providing a more natural feel.
Article
Electrochemistry
Muhammad Nihal Naseer, Asad A. Zaidi, Kingshuk Dutta, Juhana Jaafar, Yasmin Abdul Wahab, Yuhang Cai
Summary: This study provides a simulation platform using a fundamental mathematical model of MFC for theoretical studies. The model validation shows an error of only 2%-10%. This model can help in future optimization and industrial application research, ultimately improving the design efficiency and performance, and promising MFCs as a renewable and alternative energy resource.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Rheumatology
Salman Nisar, Ameera Noor, Aqueel Shah, Usama Siddiqui, Sohaib Zia Khan
Summary: This study investigates the parametric effect of laser power and welding speed on peak temperatures, aspect ratio of weld bead width to depth, and heat affected zone width for AA5083 aluminium alloy. Finite Element (FE) simulations using Taguchi array design were conducted with ABAQUS. The results reveal a positive correlation between laser power and temperatures, and a negative correlation between welding speed and temperature. Welding speed affects the aspect ratio of weld bead width to depth, while laser power influences the width of the heat affected zone. It is concluded that laser power significantly affects weld bead width, while welding speed has a pronounced effect on peak temperatures.
RHEUMATIC DISEASE CLINICS OF NORTH AMERICA
(2023)
Article
Engineering, Multidisciplinary
Hafiz Muhammad Waqas, Dongyan Shi, Muhammad Imran, Sohaib Z. Khan, Elsayed Fathallah, Mahmoud Helal
Summary: The main purpose of this research is to use wood as a core material for composite sandwiched submersible pressure hulls in order to reduce weight and increase stability under hydrostatic pressure. Finite element analysis (FEA) was utilized to optimize the design of the pressure hull. Different composite materials and various types of wood were tested as core materials. The optimization process was conducted using genetic algorithm (GA). The number of ply layers and core thickness were optimized for the configuration of [0l/90m/0n/0c/0o/90p/0q]. The objective was to decrease the buoyancy factor and increase the buckling factor. Material failure criteria and buckling factor were considered as constraints for the optimization process. A comparison with steel pressure hull showed promising results in favor of using composite material with wood core.
JOURNAL OF APPLIED SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Mechanical
Ahmad Hanan, Umer Zahid, Tariq Feroze, Sohaib Khan
Summary: This paper presents the influence of performance optimization parameters on the heat transfer and temperature reduction of shell and tube heat exchangers, and discusses their effects on temperature distribution and heat transfer rate.
AUSTRALIAN JOURNAL OF MECHANICAL ENGINEERING
(2023)
