Article
Green & Sustainable Science & Technology
Weronika Kruszelnicka, Jakub Hlosta, Jan Divis, Lukasz Gierz
Summary: The research aims to investigate the relationships between multi-disc mill performance parameters and comminution characteristics. Experimental results show that disc angular speed affects power consumption, specific energy consumption, and size reduction ratio, while batch dosing speed affects throughput. Fitting curves of comminution indicators in dependence of selected performance parameters are also presented in the study.
Article
Energy & Fuels
A. Komarova, I. Filimonova, A. A. Kartashevich
Summary: This paper examines the relationship between economic growth and energy consumption in different countries. It finds that the impact of energy consumption on gross domestic product (GDP) is stronger in non-OECD countries compared to OECD countries, which can be attributed to the extensive nature of economic development. This relationship is particularly evident in regions such as the Asia-Pacific, Africa, and Central and South America. The paper also calculates the energy intensity of countries worldwide and analyzes the main trends for different country groups.
Article
Economics
Fengqin Liu, Jae-yeon Sim, Huaping Sun, Bless Kofi Edziah, Philip Kofi Adom, Shunfeng Song
Summary: There is concern over the impact of economic globalization on energy consumption and efficiency, with contradictory findings from previous studies. This study, using global data from 141 countries, examines the effects of economic globalization on energy efficiency. The findings suggest that economic globalization has a positive effect on energy efficiency, but controlling for certain factors is necessary to avoid bias in the results. Additionally, the study reveals that the impact of economic globalization on energy efficiency varies across income levels.
CHINA ECONOMIC REVIEW
(2023)
Article
Environmental Sciences
Muhammad Iftikhar ul Husnain, Nasrullah, Muhammad Aamir Khan
Summary: The study examines the relationship between energy consumption, economic growth, and trade openness, identifying weaknesses in existing literature and applying a new methodology. The findings suggest a positive influence of economic growth and trade on energy consumption in many countries.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Stephen Morrell
Summary: Comminution significantly contributes to the Mining Industry's carbon footprint, and there is a need to improve comminution circuit energy efficiency in order to meet net zero carbon emission targets. High Pressure Grinding Rolls (HPGR) circuits have the potential to reduce CO2 emissions by a considerable amount compared to traditional alternatives. However, the adoption of HPGR technology has been slow, possibly due to the costly and time-consuming pilot testing required. To address this issue, a power-based methodology has been developed to assess, size, and select HPGR closed circuits in hard rock mining applications.
MINERALS ENGINEERING
(2022)
Article
Energy & Fuels
Hyunhee Lee, Junaid Haider, Muhammad Abdul Qyyum, Changgwon Choe, Hankwon Lim
Summary: Hydrogen liquefaction is an effective and viable solution to increase energy contents for storage and transportation. This study proposes a precooling cycle that reduces energy consumption by using unique HFO-based mixed refrigerants to lower the temperature of gaseous H-2. The results show a significant reduction in specific energy consumption and an increase in exergy efficiency compared to the base cases. The economic evaluation also demonstrates the feasibility of the proposed process.
Article
Energy & Fuels
Jianyu Peng, Chuan Du, Fengpeng Zhang, Jikai Gao, Haonan Wang
Summary: The high-voltage pulse technique is a promising method for rock fragmentation in rock engineering. This study established a circuit system to investigate the fracturing effect of high-voltage pulses on granite. The results showed the formation of breakdown, radial crack, and circumferential crack zones within the granite specimens. The median size of fragments gradually increased with the growth of specimen size, while it decreased with increasing charge voltage and attenuated exponentially with energy density. High-temperature melting and shock waves were identified as the dominant factors inducing rock fracturing.
GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
(2022)
Article
Energy & Fuels
Marcin Wysokinski, Bogdan Klepacki, Piotr Gradziuk, Magdalena Golonko, Piotr Golasa, Wioletta Bienkowska-Golasa, Barbara Gradziuk, Paulina Trebska, Aleksandra Lubanska, Danuta Guzal-Dec, Arkadiusz Weremczuk, Arkadiusz Gromada
Summary: The research highlights the need for measures that combine economic and environmental elements due to the conflict between economic and environmental goals. By evaluating technical and economic efficiency indices, it can promote the development of farms that produce food with low energy consumption and a positive energy balance.
Article
Chemistry, Physical
Donghong Wang, Chuan Li, Qing Li, Hongfei Li, Javed Rehman, Chunyi Zhi, Lei Zhu
Summary: By selecting a stable cathode framework and suitable tunnels, high energy efficiency for the storage of Zn2+ ions can be achieved. The use of K+ ions as charge carriers also contributes to the reduction of overpotential. This research demonstrates the potential for improving energy efficiency of aqueous zinc batteries and suggests further research directions.
Article
Environmental Sciences
Festus Victor Bekun, Ahmed Oluwatobi Adekunle, Adedeji Daniel Gbadebo, Abdulkareem Alhassan, Joseph Olorunfemi Akande, Nora Yusma Mohamed Yusoff
Summary: This study examines the relationship between sustainable electricity consumption and international tourist arrivals in South Africa. The findings indicate a significant direct connection between the two, validating the tourism-induced energy hypothesis. However, alternative energy efficiency mechanisms and improvements in energy management capabilities are recommended for sustainable eco-friendly tourism in South Africa.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Gloria Gonzalez Garcia, Alfredo L. Coello-Velazquez, Begona Fernandez Perez, Juan M. Menendez-Aguado
Summary: This study investigates the variability in the Bond work index resulting from different parameters obtained from particle size distribution, highlighting the importance of understanding this variability when performing the Bond's standard test.
Article
Environmental Studies
Yi Shan, Zhengshi Ren
Summary: In the context of Cop26, the study examines the impact of renewable energy consumption and tourism development on high-quality economic development (HQED) in China. Findings suggest that renewable energy can promote HQED, but the effect is small and does not have spatial spillover. However, tourism development inhibits HQED due to its energy consumption and CO2 emissions. The interaction between tourism development and renewable energy also hinders HQED, and renewable energy consumption has a partial mediating role in the process.
Review
Economics
Xuan Yao, Zeshui Xu, Xinxin Wang, Lina Wang, Marinko Skare
Summary: The COVID-19 epidemic has hindered global progress in energy efficiency, posing a threat to international climate goals and impacting economic development. Through a systematic literature review and bibliometric analysis, this paper identifies research frontiers and hotspots in energy efficiency and COVID-19, providing insights for further development in this field.
TECHNOLOGICAL AND ECONOMIC DEVELOPMENT OF ECONOMY
(2023)
Article
Environmental Sciences
Md Shabbir Alam, Mohammad Noor Alam, Muntasir Murshed, Haider Mahmood, Risana Alam
Summary: This study explores the impacts of energy consumption, energy efficiency, and financial development on Oman's prospects of attaining environmentally sustainable growth. The findings suggest that higher energy consumption and greater financial development hinder environmental sustainability, while improving energy efficiency can boost carbon productivity in Oman.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Thermodynamics
Yiming Li, Saeed Solaymani
Summary: Industry and agriculture in Malaysia are main contributors to economic growth and employment, as well as important players in total exports. The study shows that overall economic growth is the main factor leading to an increase in energy consumption, with long-term impact being greater than short-term impact. Exports are the second largest contributor to energy demand in the overall economy and agriculture sector.
Article
Engineering, Chemical
Ralf Ditscherlein, Thomas Leissner, Urs A. Peuker
Summary: Characterization of multidimensional particle property distributions through computed tomography requires an adapted sample preparation strategy to generate spatially separated particles and ensure sample stability. In this study, an epoxy-based method with low X-ray absorbing graphite nanoparticles as spacer is presented, along with a machine learning-based method for discretizing the particle system. Results are compared with data from previous studies and validation measurements.
Article
Materials Science, Multidisciplinary
Ralf Ditscherlein, Orkun Furat, Erik Loewer, Raik Mehnert, Robin Trunk, Thomas Leissner, Mathias J. Krause, Volker Schmidt, Urs A. Peuker
Summary: This paper proposes a method for designing an open access archive for particle-discrete tomographic datasets, and introduces the PARROT database along with three illustrative use cases. The archive is a result of a pilot study in the field of particle technology and serves as a starting point for similar projects.
MICROSCOPY AND MICROANALYSIS
(2022)
Article
Chemistry, Multidisciplinary
Andreas Brueckner, Thomas Sprott, Urs Alexander Peuker, Bernhard Hoffner
Summary: This study investigates the influence of different start saturations on the displacement regime of washing curve in cake washing of undersaturated filter cakes, and finds that an increase in saturation happens at the beginning of the washing process.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Denis Manuel Werner, Thomas Muetze, Urs Alexander Peuker
Summary: This study investigates the influence of different pretreatment strategies on the recycling process of lithium-ion batteries, and discusses the safety of cell opening, technical recycling efficiencies, and their impact on future industrial waste management.
Review
Engineering, Chemical
Alexandra Kaas, Thomas Mutze, Urs A. Peuker
Summary: This paper discusses the design, mode of operation, influencing parameters, and research progress of the ZZ classifier, which has wide applications in recycling and other fields.
Article
Materials Science, Multidisciplinary
Oliver Voigt, Urs Alexander Peuker
Summary: This study investigates the waste products of die-sink electro discharge machining (die-sink EDM) and explores their suitability as recycled materials in additive manufacturing (AM). The study finds that the waste particles fulfill the main requirements for AM usage in terms of size and shape, but chemical purity and the removal of undesired elements need improvement.
Article
Materials Science, Multidisciplinary
Denis Manuel Werner, Thomas Muetze, Urs Alexander Peuker
Summary: The increasing production of lithium-ion batteries necessitates an efficient and sustainable waste management scheme. This study investigates the dependence on pretreatment and crushing for the recycling of end-of-life LIBs, and analyzes the properties and composition of the resulting crushed products. The findings reveal trends for successful separation strategies and provide recommendations for the liberation of LIBs.
Article
Engineering, Chemical
Silvan Englisch, Ralf Ditscherlein, Tom Kirstein, Leonard Hansen, Orkun Furat, Dominik Drobek, Thomas Leissner, Benjamin Apeleo Zubiri, Alfred P. Weber, Volker Schmidt, Urs A. Peuker, Erdmann Spiecker
Summary: A 3D characterization workflow combining micro and nano X-ray computed tomography (Micro-CT, Nano-CT) and analytical scanning electron microscopy (SEM) is introduced for particle composite materials. It can be applied to analyze powders ranging from 0.3 μm to 15 μm. This workflow allows for quantitative characterization of particle size, phase distribution, and mineral degree of liberation.
Article
Engineering, Chemical
Judith Miriam Friebel, Diana Neuber, Thomas Buchwald, Ralf Ditscherlein, Urs Alexander Peuker
Summary: This study introduces a new approach to quantify the amount of impurity deposited inside a filter cake using X-ray tomography. A model system consisting of kieselguhr as filter aid and barium sulphate as impurity is chosen, and a calibration approach is used to gain insight into subvoxel information. The approach delivers valid results for the chosen material system and reveals unexpected characteristics of the filter cake structure.
Article
Engineering, Mechanical
Julia Richter, Thomas Wegener, Robert Kratzsch, Malte Vollmer, Urs Peuker, Thomas Niendorf
Summary: This study investigates the importance of powder recycling in additive manufacturing and conducts experiments on the preparation and application of recycled powder. The results show that mechanically recycled powder can partially substitute virgin powder.
INTERNATIONAL JOURNAL OF FATIGUE
(2023)
Article
Imaging Science & Photographic Technology
Peter Bischoff, Alexandra Kaas, Christiane Schuster, Thomas Haertling, Urs Peuker
Summary: With the increasing number of electrical devices, efficient recycling processes of electric components, especially lithium-ion batteries, are in demand. In order to achieve high material purities, mechanical recycling involves comminution and sorting. Determining the yield and recovery rate is crucial for adapting the processes, and we developed an automated method based on image analysis and correlation analysis to determine the mass composition. This method accelerates the process, improves accuracy, and reduces evaluation costs.
JOURNAL OF IMAGING
(2023)
Article
Electrochemistry
Christian Wilke, Denis Manuel Werner, Alexandra Kaas, Urs Alexander Peuker
Summary: With the growing number of electric vehicles, recycling used lithium-ion batteries has become increasingly important. This study investigates the impact of crusher settings and pre-treatment temperatures on the composition and properties of the black mass, aiming to find the optimum balance between recovering coatings and conductive salts while limiting the amount of aluminum and copper in the black mass.
Article
Geochemistry & Geophysics
Asim Siddique, Peter Boelens, Fangchao Long, Shengqiang Zhou, Veerle Cnudde, Thomas Leissner
Summary: Magnetic separation plays a crucial role in mineral processing and recycling industries. This study proposes a methodology to comprehensively characterize and classify Waste Electrical and Electronic Equipment (WEEE) slag, aiming to establish the connection between slag properties and the separation process. The methodology involves sieving, classification based on magnetic susceptibility, and mineral liberation analysis. This in-depth analysis provides insights into the separation behavior of different slag phases, contributing to the development of predictive separation models.
Article
Materials Science, Multidisciplinary
Christian Wilke, Alexandra Kaas, Urs Alexander Peuker
Summary: This study investigates the impact of different types of lithium-ion batteries on a standardized mechanical recycling process. It reveals that pouch cells require lower energy consumption for crushing and different cell types have significant variations in particle size distribution.
Article
Engineering, Environmental
Alexandra Kaas, Christian Wilke, Anna Vanderbruggen, Urs A. Peuker
Summary: Prior to mechanical processing, discharging is necessary to prevent hazards. Different discharge levels can impact the mechanical recycling and resulting material, leading to copper and active material deposits, deteriorating the quality of the black mass and contaminating the products.
Article
Engineering, Environmental
Xiaojian Liu, Bei Wang, Yayun Ma, Xiangyang Zhou, Juan Yang, Yuehui He, Jingjing Tang, Fanyun Su, Wan Yang
Summary: This study proposes a combined process of reduction roasting of herb-medicine residue and oxalic acid leaching to improve the recovery efficiency of lithium from spent lithium-ion batteries. By utilizing the reducing gas produced from the pyrolysis of herb-medicine residue, the layered structure of the cathode powder is destroyed and converted into Li2CO3, Ni, Co, and MnO. Additionally, selective extraction of lithium is achieved using oxalic acid, and the efficiency and kinetics of lithium extraction are improved under the combined action of herb-medicine residue and oxalic acid.
Article
Engineering, Environmental
Muxina Konarova, Nuno Batalha, Gabriel Fraga, Mohamed H. M. Ahmed, Steven Pratt, Bronwyn Laycock
Summary: This study presents a proof of concept for a technology that integrates PET recovery from mixed plastic waste and plastic pyrolysis. By depolymerizing PET into TPA using a low volatility oil as medium, it achieves low-pressure operation and a selective separation and recovery of TPA from the product mix. Full PET conversion and high TPA recovery were achieved, making it an effective solution for processing mixed waste streams and improving the yield and quality of liquid product from thermal pyrolysis compared to untreated feedstock.
Article
Engineering, Environmental
Zhenhua Sun, Jing Li, Xuejiang Wang, Siqing Xia, Jianfu Zhao
Summary: This study investigated the influence of in-situ formed MgFe2O4 on the hydrothermal treatment of swine manure. The results showed that the in-situ formation of MgFe2O4 improved the dehydration and decarboxylation of organic components in swine manure, thereby improving its carbonization degree. Furthermore, it enhanced the stabilization of heavy metals and the retention of phosphorus. MgFe2O4 modified hydrochars exhibited remarkable adsorption capacity for Pb(II) and Cu(II) without any leaching of heavy metals.
Article
Engineering, Environmental
Yijing Jiang, Boyang Leng, Jingxin Xi
Summary: The increased generation of municipal solid waste has had a significant impact on the economy, environment, and public health. The current waste treatment process has limitations. By developing a comprehensive social costing model, this study assesses the impacts of municipal solid waste management throughout its life cycle and provides policymakers with best practices and feasibility information.
Article
Engineering, Environmental
Marina Hernandes de Paula e Silva, Ricardo Coser Mergulha, Jose Geraldo Vidal Vieira, Andrea Brasco Pampanelli, Rodrigo Salvador, Diogo Aparecido Lopes Silva
Summary: This study developed and implemented a self-assessment tool to assist companies in decision-making processes for establishing circular flows based on Lean Manufacturing and Circular Economy principles. The tool utilized a maturity model and was applied to nine companies of varying characteristics. The findings revealed that certain companies showed higher maturity in water-waste and chemical-emissions management, with larger enterprises focusing on these strategies. However, many companies lacked sufficient training and employee awareness prior to seeking cleaner alternatives, and comprehensive actions to manage the product lifecycle were lacking. To address these gaps, the tool provided tailored recommendations for each company to improve their processes, products, and value chain.
Article
Engineering, Environmental
Gamze Dogdu, Turgay Pekdemir, Sanaz Lakestani, Seyda Karabork, Osman Cavus
Summary: This paper presents data on food waste associated with mini size food packaging services, highlighting the difficulties in emptying the food and consumer wastefulness as the main causes. These findings have significant implications for the sustainability of food and relevant packaging.
Article
Engineering, Environmental
Qingxia Li, Xin Kong, Yuxin Chen, Jianan Niu, Jia Jing, Jin Yuan, Yifeng Zhang
Summary: This study investigates how to enhance methane production from food waste after hydrothermal pretreatment. The results demonstrate a significant increase in methane yield when zero-valent iron and magnetite are used together, and high organic loading is favorable for methane production. Microbial diversity analysis further reveals the dominant pathways and metabolic processes involved in methane generation.
Article
Engineering, Environmental
D. H. H. Sim, I. A. W. Tan, L. L. P. Lim, E. T. Lau, B. H. Hameed
Summary: The development of controlled-release fertilizer formulation is important for preventing environmental pollution caused by nutrient leaching and volatilization. This study combined biochar-based fertilizer with encapsulation technology to improve the nutrient release mechanism. Optimal conditions for synthesizing urea-impregnated biochar (UIB) were determined using central composite design, and the release of nitrogen was described by mathematical models. Results showed that encapsulated UIB (EUIB) achieved complete release of nitrogen in water and exhibited improved water retention in sandy-textural soil. Therefore, EUIB derived from peppercorn waste has the potential to be used as a sustainable controlled-release fertilizer for agriculture.
Article
Engineering, Environmental
Yuchuan Wang, Neslihan Akdeniz
Summary: Incorporating biochar into composting systems can increase compost temperatures. This study developed a heat transfer model for a biochar-amended co-composting system and found that biochar increased thermal conductive losses but also enhanced microbial activity, resulting in an overall increase in total heat unit. When biochar was applied on the surface, it mainly functioned as an insulator.
Article
Engineering, Environmental
George Tsalis, Birger Boutrup Jensen, Jessica Aschemann-Witzel
Summary: This paper empirically explores the relationship between retail price promotions and household food waste. The results show that households with a higher proportion of discount food purchases and environmental awareness tend to waste less food, while larger households and those lacking food handling skills tend to waste more food.
Article
Engineering, Environmental
Lukas Friederici, Arne Koch, Patrick Martens, Jana Pantzke, Sebastiano Di Bucchianico, Thorsten Streibel, Christopher P. Rueger, Ralf Zimmermann
Summary: The increasing demand for lightweight materials has led to a rise in fiber-reinforced plastic (FRP) production. However, the properties and compositional range of FRPs pose challenges to recycling strategies. Pyrolysis has emerged as a promising method for separating the fibers from the polymer matrix. This study investigated the pyrolysis process using thermal analysis and high-resolution mass spectrometry, and also assessed the toxicity of the recovered fibers using an in vitro model.
Review
Engineering, Environmental
Devika Kannan, Shakiba Khademolqorani, Nassibeh Janatyan, Somaieh Alavi
Summary: This paper introduces Smart Waste Management (SWM) that applies Industry 4.0 technologies in waste management. A framework called SWM4.0 is developed, which highlights the importance of smart people, smart cities, smart enterprises, and smart factories in achieving successful waste management. The paper also suggests future research directions and managerial implications.
