Review
Chemistry, Multidisciplinary
Emmanuel Isaac Akpan, Bernd Wetzel, Klaus Friedrich
Summary: The hierarchical structures of woods can be modified to provide structural, functional, and multi-functional materials, but current methods often generate harmful waste products. Sustainable alternatives that are environmentally friendly, energy efficient, and cost effective are proposed for future material processing.
Review
Plant Sciences
Mahmudul Hasan, Muhammad Saiful Ahmad-Hamdani, Adam Mustafa Rosli, Hafizuddin Hamdan
Summary: Integrated weed management, including the use of bioherbicides, is a promising strategy for sustainable agriculture. Bioherbicides disrupt weed growth by affecting cell membrane integrity and important biochemical processes.
Review
Chemistry, Physical
Huaiqing Luo, Pengwei Li, Junjie Ma, Liyuan Han, Yiqiang Zhang, Yanlin Song
Summary: This article discusses the issues related to Pb-based perovskite solar cells, such as the toxicity and leakage of lead, and their impact on the environment. It also proposes strategies to address these issues, including inhibiting Pb leakage and achieving Pb recycling and sustainable utilization.
ADVANCED ENERGY MATERIALS
(2022)
Article
Green & Sustainable Science & Technology
Mayank Kumar Malik, Tarun Kumar, Vipin Kumar, Jaspal Singh, Raj Kumar Singh, Karuna Saini
Summary: Starch extracted from underutilized mandua grains was derivatized to create moldable films with increased flexibility, showing great potential for developing biodegradable products.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Materials Science, Composites
Pradeep Rajamani, Arumugaprabu Veerasimman, Geetha Palani, Vigneshwaran Shanmugam, Sundarakannan Rajendran, Ajith Subbaiah, G. B. Rameshkumar
Summary: In this study, biochar derived from cashew nut shells was added to vinyl ester-based composites to enhance their mechanical and thermal properties. The composite with 10% biochar showed significantly higher tensile strength and hardness compared to the neat vinyl ester. The composite with 15% biochar exhibited the highest impact and flexural strength. Thermogravimetric analysis demonstrated that the composite with 15% biochar had a yield percentage of approximately 45%. This study provides an overview of biochar applications and highlights the advantages of biomass wastes in producing strong and thermally stable composites.
POLYMER COMPOSITES
(2023)
Article
Green & Sustainable Science & Technology
M. Jimenez-Rosado, J. F. Rubio-Valle, V Perez-Puyana, A. Guerrero, A. Romero
Summary: The research aimed to improve the plasticizer removal stage in fertilizer controlled release technology, using different aqueous media to achieve this goal, and evaluating the impact of these media on plasticizer and micronutrient. The study findings showed that the process can be optimized to obtain matrices with higher micronutrient retention.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Construction & Building Technology
R. Rakesh Kumar Reddy, Subhash C. Yaragal, Anil sagar Srinivasa
Summary: The primary objective of this study is to develop an eco-friendly one-part alkali-activated concrete (OPAAC) by incorporating a combination of fly ash, ground granulated blast furnace slag, and micro silica. The mechanical properties and CO2 emissions of OPAAC with different proportions and alternative aggregates are thoroughly examined. The results show that OPAAC with 40% FA replaced with GGBS, 50% RCAs, and 50% FCSAs demonstrates the most favourable mechanical properties and exhibits lower CO2 emissions.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Review
Construction & Building Technology
Nihar Ranjan Mohanta, Meena Murmu
Summary: This paper reviews different types of alternative coarse aggregates and discusses their influence on the properties of concrete. The search for alternative sustainable coarse aggregates has become urgent due to the depletion of natural aggregates and degradation of the ecosystem.
JOURNAL OF BUILDING ENGINEERING
(2022)
Review
Chemistry, Multidisciplinary
Shikha Gulati, Arikta Baul, Anoushka Amar, Rachit Wadhwa, Sanjay Kumar, Rajender S. S. Varma
Summary: Carbon quantum dots (CQDs) are a new family of photoluminescent 0D NPs that have attracted much attention due to their unique properties. This review thoroughly discusses the latest trends and advancements in the eco-friendly synthesis and setup of photoluminescent CQDs, with a focus on biomass-derived precursors. The potential for modifying CQDs to create new physicochemical properties is also presented.
Article
Chemistry, Multidisciplinary
Yu Yang, Daming Chen, Yuan Cheng, Boqian Sun, Guangdong Zhao, Weidong Fei, Wenbo Han, Jiecai Han, Xinghong Zhang
Summary: Traditional methods for manufacturing fiber precursors require hazardous solvents, leading to high cost and pollution. This study introduces sugars as a new precursor, which, in synergy with hydrogels, enables an eco-friendly and sustainable approach. The strategy effectively inhibits the generation of harmful gases, improves carbon yield, reduces carbon emissions, and produces fibers with a compact and homogeneous microstructure and excellent mechanical properties.
Review
Microbiology
Mousa A. Alghuthaymi, Kamel A. Abd-Elsalam, Hussien M. AboDalam, Farah K. Ahmed, Mythili Ravichandran, Anu Kalia, Mahendra Rai
Summary: Traditional nanoparticle synthesis methods are expensive and hazardous, while microbial synthesis offers a green and rapid alternative for various applications. This review focuses on the synthesis of metal nanoparticles from Trichoderma species for agri-food applications and discusses their potential benefits and drawbacks.
Article
Chemistry, Physical
Francesco Colangelo, Ilenia Farina, Marta Travaglioni, Cinzia Salzano, Raffaele Cioffi, Antonella Petrillo
Summary: In the last 20 years, seismic events in Italy have increased the use of concrete for reconstruction, leading to significant environmental damage. To reduce the exploitation of natural aggregates and environmental impacts, innovative artificial aggregates from industrial waste have been proposed as substitutes.
Article
Chemistry, Physical
Evgenii M. Shcherban, Sergey A. Stel'makh, Alexey N. Beskopylny, Levon R. Mailyan, Besarion Meskhi, Diana Elshaeva, Andrei Chernil'nik, Alexander L. Mailyan, Oxana Ananova
Summary: This study investigates the feasibility of partially replacing cement with waste coal dust in concrete and cement-sand mortars. The results show that within the controlled proportion, the replacement of waste coal dust does not significantly affect the density of the materials, but it reduces workability. The best physical and mechanical characteristics were achieved with a 4% replacement ratio in concrete and mortars.
Article
Engineering, Manufacturing
Vaibhav Agarwal, Sanjay Agarwal
Summary: Solid lubricants play a critical role in controlling temperature, reducing wear, improving tool life and surface roughness in machining. They are considered an eco-friendly option for sustainable manufacturing.
JOURNAL OF MANUFACTURING PROCESSES
(2021)
Article
Materials Science, Multidisciplinary
Weijin Wang, Yuxiang Gan, Xin Kang
Summary: By utilizing slate tailings from Shaanxi Province of China to produce eco-friendly unburned bricks, it is possible to reduce negative impacts on the environment. Research shows that under specific ratios and curing conditions, the produced bricks exhibit excellent mechanical properties and durability.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Environmental Sciences
Jana Ruzickova, Helena Raclavska, Dagmar Juchelkova, Michal Safar, Marek Kucbel, Barbora Svedova, Karolina Slamova, Anna Grobelak
Summary: The utilization of waste wood from furniture production presents new challenges, including incomplete thermochemical decomposition of additives and the identification of unique organic compounds produced through the combustion of waste wood. The combustion deposits from briquettes made from furniture production include organic compounds originating from the decomposition of resins, adhesives, and plasticizers. These compounds may pose potential risks to the environment and human health.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Helena Raclavska, Jana Ruzickova, Konstantin Raclavsky, Dagmar Juchelkova, Marek Kucbel, Barbora Svedova, Karolina Slamova, Malgorzata Kacprzak
Summary: The addition of 5% biochar in composting helps to reduce VOC emissions, increase temperature and biological stability, and decrease the release of organic compounds. It also shortens the composting process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
A. E. Atabani, Eyas Mahmoud, Muhammed Aslam, Salman Raza Naqvi, Dagmar Juchelkova, Shashi Kant Bhatia, Irfan Anjum Badruddin, T. M. Yunus Khan, Anh Tuan Hoang, Petr Palacky
Summary: The global market for fuel pellets is growing due to coal substitutes, but sustainability and biomass availability are major issues. Spent coffee grounds can be used to produce high heating value fuel pellets, but burning 100% SCG leads to high NO R emissions and low boiler efficiency. Mixing SCG with other biomass improves combustion performance. Further research is needed on the combustion and emissions of defatted spent coffee grounds.
ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY
(2023)
Article
Mechanics
Lei Chen, Yifan Wang, Jiri Jaromir Klemes, Jin Wang, Wenquan Tao
Summary: This study investigates the collision between a single coarse particle and a wall in a viscous media using a Hertz-Mindlin no-slip contact model. The results show that the impact velocity and viscosity of the media have significant effects on the contact processes and contact force. This research is important for optimizing flow conveying systems, reducing attrition, and improving economic development.
EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
(2023)
Article
Environmental Sciences
Abdul Ahad Khan, Salman Raza Naqvi, Imtiaz Ali, Muazzam Arshad, Hamad AlMohamadi, Umair Sikandar
Summary: The aim of this work is to synthesize algae-derived biochar through slow pyrolysis and use it as an adsorbent to remove Cr (VI). The maximum removal percentage of Cr (VI) is 97.88% and the Langmuir isotherm model and pseudo-nth order models are suitable to describe the adsorption and kinetics. The maximum adsorption capacity of algal biochar is 186.94 mg/g.
Article
Thermodynamics
Hon Huin Chin, Petar Sabev Varbanov, Jiri Jaromir Klemes, Zdravko Kravanja
Summary: Circular Economy is a well-known concept to tackle global resource depletion problems, and its sustainability and environmental performance are closely related to energy consumption. This work presents an assessment tool called Energy Quality Pinch Analysis, which determines the minimum energy requirements for a circular system and demonstrates its sustainability. The analysis considers cascades of energy used and released in recycling and symbiosis processes, evaluating the minimal external energy flows. Case studies on heat and power integration, chemical energy reuse in wastewater systems, and municipal solid waste management have shown the potential for high energy recovery rates, providing valuable guidance for system designers.
Article
Thermodynamics
Kok Sin Woon, Zhen Xin Phuang, Jan Taler, Petar Sabev Varbanov, Cheng Tung Chong, Jirf Jaromfr Klemes, Chew Tin Lee
Summary: Climate change is a major long-term threat to humanity. Transforming urban energy from carbon-intensive to carbon-free solutions is crucial for achieving carbon neutrality. This review discusses recent advances in green energy development in urban sectors, including industry, buildings, transportation, and waste treatment. It highlights the need for developing novel energy materials, improving energy storage capacity, reducing vulnerability of renewable sources, optimizing modeling, and enhancing engineering design. The challenges and recommendations for green energy development in environmental, economic, and societal aspects are summarized, along with the importance of minimizing energy consumption in waste treatment. Innovations in technology, institutional regulations, incentives, and behavioral changes are necessary for achieving carbon neutrality in urban environments.
Article
Energy & Fuels
Payam Danesh, Parsa Niaparast, Payam Ghorbannezhad, Imtiaz Ali
Summary: This study reviews the latest research on biochar production through the pyrolysis process and its applications. The technology is promising for converting lignocellulosic biomass into materials with high added value. Biochar has the capabilities to control climate fluctuations and improve soil fertility, leading to an increase in agricultural yield.
Article
Thermodynamics
S. Pitchaiah, Dagmar Juchelkova, Ravishankar Sathyamurthy, A. E. Atabani
Summary: This study focuses on the production of biodiesel from Bael seeds. The experiment shows that the diesel-Bael biodiesel blend has comparable performance and emissions with neat fossil diesel. By adding dimethyl carbonate (DMC) as an ignition enhancer, the CO and HC emissions can be significantly reduced, while the NOx emissions are controlled.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Energy & Fuels
Mudassir Hussain Tahir, Imtiaz Ali, Esma Yeliz Kaya, Selim Ceylan
Summary: The thermal conversion of waste furniture boards (WFB) was investigated using a coupled TG-FTIR system under inert atmosphere at different heating rates. Kinetic analysis revealed an average activation energy (Ea) of 175.91 (+/- 3.50), 171.41 (+/- 5.01), and 172.70 (+/- 5.06) kJ/mol, calculated using three model-free methods. Distribution of activation energy (DAEM) analysis indicated that the pyrolytic conversion of WFB is endothermic but favorable. A neural network model accurately predicted the thermal degradation, with a mean square error (MSE) of 0.3694 and adjusted R2 value of 0.9686. Pyrolysis of WFB produced molecules with -OH and -COOH functional groups, as well as small gas molecules such as CH4, CO2, and H2O.
Article
Energy & Fuels
Ramesh Kanthasamy, Eydhah Almatrafi, Imtiaz Ali, Hani Hussain Sait, Mohammed Zwawi, Faisal Abnisa, Leo Choe Peng, Bamidele Victor Ayodele
Summary: This study uses Bayesian optimized multilayer perceptron neural network to model the prediction of biochar and syngas from biomass-derived waste pyrolysis. The performance of the neural networks is influenced by the number of connecting layers and the size of the hidden neurons. The best-performing neural network architecture for predicting biochar yield is 3-2-10-10-1 with R2 of 0.984 and RMSE of 0.34, while for predicting syngas yield it is 3-7-10-3-1 with R2 of 0.999.
Article
Energy & Fuels
Ramesh Kanthasamy, Eydhah Almatrafi, Imtiaz Ali, Hani Hussain Sait, Mohammed Zwawi, Faisal Abnisa, Leo Choe Peng, Bamidele Victor Ayodele
Summary: Biochar, produced through pyrolysis, is a crucial nanomaterial for wastewater treatment. This study uses a data-driven approach to model biochar production from agricultural wastes and finds that temperature, heating rate, residence time, and nitrogen flow rate significantly impact biochar yields. Support vector machine (SVM) and Gaussian process regression (GPR) models show potential for predicting biochar production, with GPR outperforming SVM. Artificial neural network-based algorithms provide even better prediction accuracy. Residence time during valorization reaction is identified as the most influential factor.
Article
Energy & Fuels
Muzaffar Mehdi, Syed Ali Ammar Taqvi, Asif Ahmed Shaikh, Saad Khan, Salman Raza Naqvi, Muhammad Shahbaz, Dagmar Juchelkova
Summary: This study aims to address the increasing demand for energy and the recycling of waste into energy by utilizing the Waste to Energy (WTE) technique. The simulation model of steam gasification of Municipal Solid Waste (MSW) was employed, with adjustments made to temperature, steam to MSW ratio, and air to MSW ratio. The results revealed that increasing the temperature from 700 degrees C to 1300 degrees C led to an increase in H2 concentration and CO concentration, as well as a decrease in CO2 concentration. Similarly, adjusting the steam to MSW ratio and air to MSW ratio also resulted in varying concentrations of H2, CO, and CO2. Overall, the simulation data was found to be in line with the base case, with a yield difference of only 1-3%.
Article
Energy & Fuels
Ramesh Kanthasamy, Imtiaz Ali, Bamidele Victor Ayodele, Hisham A. Maddah
Summary: This study models biohydrogen production from photocatalytic conversion of wastewater using a data-driven approach and neural network models. The best network architectures were obtained for different algorithms, and all models demonstrated good predictability with high R2 values and low RMSE values. The MLPNN-BR model displayed the best performance with an R2 of 0.999 and RMSE of 0.138. The independent variable analysis showed that all factors significantly influenced the predicted biohydrogen production, with catalyst size having the most significant effect.
Article
Energy & Fuels
Ali Azfar Zaidi, Arslan Khan, Hamad AlMohamadi, Muhammad Waqas Anjum, Imtiaz Ali, Salman Raza Naqvi, Shinya Kokuryo, Koji Miyake, Norikazu Nishiyama
Summary: The Coats-Redfern method was used to study the kinetics of catalytic and non-catalytic pyrolysis of rice husk biomass. MTES-beta-zeolite and beta-zeolite were synthesized and mixed with ground rice husk. Catalytic and non-catalytic pyrolysis occurred at temperatures ranging from 523 K to 823 K.