Article
Green & Sustainable Science & Technology
Luisa Corrado, Andrea Fazio, Alessandra Pelloni
Summary: This paper uses official survey data from Italy in 2012 to investigate the factors influencing people's pro-environmental behavior, particularly in terms of domestic waste disposal. The study finds that factors such as general interest in environmental issues, easy access to recycling facilities, and education level are associated with higher recycling rates. Additionally, perceiving environmental degradation in the local area is found to decrease the likelihood of recycling.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Environmental
Jing Li, Jiali Shao, Xilong Yao, Jiashuo Li
Summary: China will face challenges in dealing with PV waste in the future decades. This study comprehensively assesses and compares the costs and benefits of mechanical recycling, chemical recycling, and thermal recycling for PV waste using a life cycle assessment. The results show that all three technologies have superior environmental and economic performance compared with landfilling. Scenario analysis suggests that technological improvements, scaling up recycling, reducing transport distances, and subsidization can enhance the total benefits of PV waste recycling.
RESOURCES CONSERVATION AND RECYCLING
(2023)
Article
Engineering, Environmental
Tharaka Gunaratne, Joakim Johansson, Niclas Svensson
Summary: This study aimed to assess the environmental potential of shredder fines and propose three resource recovery strategies. The results suggest that Alternative 1 and Alternative 3 are preferable over Alternative 2 in the context of Sweden, with some environmental hot spots identified.
Article
Green & Sustainable Science & Technology
Wenbiao Zhang, Zehong Li, Suocheng Dong, Peng Qian, Shufeng Ye, Shuhan Hu, Bing Xia, Chunying Wang
Summary: This study evaluates the environmental impact of copper-based mixed waste recycling and suggests optimization measures for the production process, focusing on energy utilization in the smelting process and material depletion in refining and electrolysis processes. Specific process improvements and simulation analyses are important directions for further research in the field.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Cheila Almeida, Jara Laso, David Baptista de Sousa, Ronan Cooney, Paula Quinteiro, Neil Rowan, Ana Claudia Dias, Eoghan Clifford, Rodrigo G. Reboredo, Maria Margallo, Maria Leonor Nunes, Antonio Marques
Summary: Packaging is crucial for food protection, consumer information, and waste reduction, but it can also negatively impact the environment. Recycling waste treatment offers more environmental benefits, yet only 66% of packaging waste is recycled in the EU. To minimize environmental impact, reducing packaging production and promoting reuse are the key approaches. Assessing consumer willingness to reduce environmental impact of seafood packaging is important.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Industrial
Lea Rupcic, Eleonore Pierrat, Kilian Fricke, Torsten Moll, Michael Z. Hauschild, Alexis Laurent
Summary: Aircraft engine manufacturing has significant environmental impacts, particularly in relation to integrated bladed rotors. This study evaluates the life cycle environmental impacts of manufacturing a Ti-6Al-4 V alloy rotor and explores potential reductions through recycling alloy chips. The analysis highlights the material stage as the main contributor, and recycling titanium chips into alloy can significantly reduce climate change impact.
CIRP ANNALS-MANUFACTURING TECHNOLOGY
(2022)
Review
Environmental Sciences
Andrew Turner, Montserrat Filella
Summary: Hazardous metal-based additives are widely present in environmental plastics, with potential impacts including contamination of the waste stream and increasing the density and settling rates of material in aquatic systems.
ENVIRONMENT INTERNATIONAL
(2021)
Article
Chemistry, Physical
Cai Qi, Shuhan Wang, Xukun Zhu, Tong Zhang, Yanju Gou, Zexin Xie, Yachao Jin, Yao Wang, Li Song, Mingdao Zhang
Summary: A green and low-cost recycling process for spent LiFePO4 cathode materials has been developed in this study. The regenerated LFP exhibits a good discharge specific capacity and the cost of the recycling process is relatively low, showing promising economic returns.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Environmental Sciences
Oludaisi Adekomaya, Thokozani Majozi
Summary: The environmental impact of waste glass is a major challenge in sustainable waste management. Reclaiming recycled materials from waste glass remains a tedious task. Studies have shown ways to minimize the impact of waste glass by using them in building materials like cement, mortars, concretes, and blocks, while also discussing the durability and thermal insulating properties of recycled glass materials.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Review
Green & Sustainable Science & Technology
Tao Wu, Yawei Yang, Qi Zhao, Ziyan Lin, Ruilong Huang, Tonghui Li, Yihong Liu, Lingdi Luo, Bowen Gao, Wenxiu Que
Summary: This paper introduces the latest progress in photocatalytic membranes, discussing the differences in photocatalytic mechanism, design philosophy, and common fabrication methods. It also explores the photocatalytic performances of different photocatalytic membranes and their future trends.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Physical
C. M. Costa, J. C. Barbosa, R. Goncalves, H. Castro, F. J. Del Campo, S. Lanceros-Mendez
Summary: This work provides an overview on the relevance of recycling Lithium-ion batteries (LIBs) and their environmental impact. It analyzes the components and market value of LIBs, addresses different recycling methods for critical metals like cobalt and nickel, and describes the main environmental issues associated with the production, use and end of life of LIBs for electric vehicles.
ENERGY STORAGE MATERIALS
(2021)
Review
Environmental Sciences
Jingjiang Yang, Xiaoshuai Han, Weisen Yang, Jiapeng Hu, Chunmei Zhang, Kunming Liu, Shaohua Jiang
Summary: Nanocellulose aerogel has the advantages of porosity, low density, and high specific surface area, which can effectively adsorb and treat wastewater waste gas. Different methods, such as mechanical, chemical, and biological methods, can be used to prepare nanocellulose. Nanocellulose aerogel can be functionalized by incorporating conductive fillers, reinforcing fillers, and other materials to enhance its electrical and mechanical properties. This functionalization improves the hydrophobicity, adsorption, electrical conductivity, and electromagnetic shielding ability of nanocellulose aerogel, making it more applicable in the field of environmental protection.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Studies
Thomas Elliot, Alan Carter, Sumedha Ghattuwar, Annie Levasseur
Summary: Road pavement has significant environmental impacts throughout its life cycle. Recycling methods, such as using reclaimed asphalt pavement (RAP), can improve environmental performance, although they are not without drawbacks. In this study, we assessed the environmental trade-offs of a road rehabilitation project using different quantities and blends of RAP over a 30-year service life. The results show that using RAP with cold in-place recycling can improve environmental indicators, such as climate change, with only a slight increase in transportation impact. This research contributes to understanding the potential improvements in pavement rehabilitation supply chains.
TRANSPORTATION RESEARCH PART D-TRANSPORT AND ENVIRONMENT
(2023)
Article
Engineering, Environmental
Pieter Callewaert, Hanne Lerche Raadal, Kari-Anne Lyng
Summary: Driven by European legislation, Norway must improve its plastic packaging recycling system to meet recycling targets. This study analyzes the current system and three alternative systems, evaluating their environmental impact and policy indicators. The study finds that increasing separation and sorting capacity can reduce the impact on climate change.
Article
Engineering, Environmental
S. Huysveld, K. Ragaert, R. Demets, T. T. Nhu, D. Civancik-Uslu, M. Kusenberg, K. M. Van Geem, S. De Meester, J. Dewulf
Summary: This study presents a data-driven method for quantifying the overall substitutability of plastics, focusing on both technical and market substitutability. By analyzing non-food contact material applications and hypothetical future food contact material applications, the study reveals the differences in environmental performance between mechanical recycling and thermochemical recycling in various scenarios.
Article
Green & Sustainable Science & Technology
Harro von Blottnitz, Jennifer M. Case, Duncan M. Fraser
JOURNAL OF CLEANER PRODUCTION
(2015)
Article
Engineering, Chemical
J. L. Broadhurst, M. C. Kunene, H. von Blottnitz, J. -P. Franzidis
MINERALS ENGINEERING
(2015)
Article
Green & Sustainable Science & Technology
V. Russo, H. von Blottnitz
JOURNAL OF CLEANER PRODUCTION
(2017)
Article
Agronomy
Kyle Mason-Jones, Aliia Gilmullina, Yakov Kuzyakov
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE
(2017)
Article
Soil Science
Kyle Mason-Jones, Yakov Kuzyakov
SOIL BIOLOGY & BIOCHEMISTRY
(2017)
Article
Green & Sustainable Science & Technology
V. Munyongani, H. von Blottnitz, J. L. Broadhurst
SUSTAINABILITY SCIENCE
(2017)
Editorial Material
Green & Sustainable Science & Technology
Alexandros Gasparatos, Kazuhiko Takeuchi, Thomas Elmqvist, Kensuke Fukushi, Masafumi Nagao, Frans Swanepoel, Mark Swilling, Douglas Trotter, Harro von Blottnitz
SUSTAINABILITY SCIENCE
(2017)
Article
Water Resources
Melissa K. L. N. Sikosana, Dyllon G. Randall, Harro von Blottnitz
Article
Soil Science
Mutez Ali Ahmed, Muhammad Sanaullah, Evgenia Blagodatskaya, Kyle Mason-Jones, Husnain Jawad, Yakov Kuzyakov, Michaela A. Dippold
SOIL BIOLOGY & BIOCHEMISTRY
(2018)
Article
Soil Science
Kyle Mason-Jones, Niklas Schmuecker, Yakov Kuzyakov
SOIL BIOLOGY & BIOCHEMISTRY
(2018)
Article
Soil Science
Yakov Kuzyakov, Kyle Mason-Jones
SOIL BIOLOGY & BIOCHEMISTRY
(2018)
Article
Geochemistry & Geophysics
Reuben Dlamini, Harro von Blottnitz
Summary: Resource requirements in mineral extractive industries increase with decreasing ore grades, leading to a larger environmental footprint. However, cleaner production interventions can alleviate this phenomenon. This study examines the impact of cleaner production process improvements on resource intensities in the South African ferrochrome industry. The results show a decrease in chromite ore intensity from 2.54 to 1.98 kg per kg ferrochrome, and a decrease in electrical energy intensity from 3.47 to 2.86 kWh per ton ferrochrome, as a result of cleaner smelting technology and cogeneration.
Proceedings Paper
Green & Sustainable Science & Technology
Joel Yongoua Nana, Harald Winkler, Harro Von Blottnitz
Summary: Dakar has published its first Climate Action Plan, aiming to achieve net zero emissions by 2050. The plan includes a target of 18% market penetration of electric vehicles by 2050 and a shift in passenger modes of transportation. This viewpoint examines Dakar's EV vision in comparison to global trends and advocates for locally relevant and inclusive strategies for electric vehicles in Sub Saharan African cities. The author suggests focusing on the electrification of buses and minibuses for greater positive social impacts.
2022 IEEE PES/IAS POWERAFRICA CONFERENCE
(2022)
Article
Multidisciplinary Sciences
Sally Berge, Harro von Blottnitz
Summary: Construction and demolition waste is a significant part of waste streams, and the quantities in South Africa are considerably underreported. Accurate quantification of this waste is crucial for implementing sustainable waste management practices.
SOUTH AFRICAN JOURNAL OF SCIENCE
(2022)
Article
Multidisciplinary Sciences
Taahira Goga, Kevin Harding, Valentina Russo, Harro Von Blottnitz
Summary: Global production and consumption of plastics have been on the rise, leading to increased environmental concerns. Local initiatives in South Africa aim to shift towards a circular system to reduce the carbon footprint of the plastics industry, with the potential to significantly impact demand for virgin polymers and waste disposal.
SOUTH AFRICAN JOURNAL OF SCIENCE
(2022)
Article
Engineering, Chemical
Benjamin De Castro, Mostafa Benzaazoua, Soumali Roychowdhury, Aurelie Chopard, Francis Quintal Lauzon, Benoit Plante
Summary: This study proposes an innovative method using deep learning algorithm and reflected light optical imaging to automatically detect all particles and minerals in acrylic resin polished sections. The experimental results show that this method can accurately detect all mineral particles, including transparent minerals, under reflected light optical microscopy, and provide unbiased mineralogical quantification.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Qiushi Song, Xinyu Du, Changlu Shan, Hongwei Xie, Zhiqiang Ning, Kai Yu
Summary: This study investigated the effect of magnetic stirring on the microstructure of Co deposits during electrowinning in a chloride solution. It was found that magnetic stirring effectively reduced the negative influence of H2 bubbles on the structure of Co deposits and changed their nucleation and growth behavior, resulting in the preparation of high-quality columnar Co crystals.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Tao Ge, Xiaowei Zhou, Liang Xu, Yan Sun, Cheng Yang, Yongpan Tian, Zhuo Zhao
Summary: In this study, the extraction performance and complexation mechanism of p-di-ethyl-amino-methylthiacalix[4]arene (L) towards Pt(IV) were investigated. The results indicated that L had excellent complexation ability towards Pt(IV) and could selectively extract it from a solution containing multiple competing ions.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Yuan Li, Dirk van Zyl
Summary: This paper presents a modified Kynch's approach to explain the hindered settling behavior of suspensions impacted by segregation. The experimental data and predicted results confirm the effectiveness of the proposed method.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Yi Fang, Aurora Robledo-Cabrera, Changsheng Peng, Shan Huang, Qi Xiao, Alejandro Lopez-Valdivieso
Summary: With the assistance of mechanical ball milling, the partially oxidized micro-sponge iron (micro-Fe0@Fe2O3) achieves significantly improved removal of Cr(VI) across a broad pH range. Mechanical force eliminates the surface oxide layer and exposes the Fe0 core, leading to sustained reduction of Cr(VI). The efficiency of micro-Fe0@Fe2O3 is strongly influenced by dissolved oxygen, with higher DO resulting in the generation of stable reductant Fe(II) under acidic conditions, while DO consumption hinders the reduction of Cr(VI) under alkaline conditions due to increased pH. Parameters of ball milling operation, especially rotation speed, have a significant impact on the removal of Cr(VI).
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Alton F. Grabsch, Phillip D. Fawell, Michael G. Davies
Summary: High molecular weight partially hydrolysed polyacrylamide (PHPA) is commonly used in mineral exploration drilling to increase fluid viscosity and help maintain the suspension of fine particles. However, clarifying these suspensions can be difficult, and previous studies have found that anionic flocculants are ineffective. This study confirmed that nonionic flocculants can successfully aggregate the particles, indicating that the charged tails of adsorbed PHPA prevent anionic flocculants from accessing the particle surfaces.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
J. S. Guiral-Vega, L. Perez-Barnuevo, J. Bouchard, A. Ure, E. Poulin, C. Du Breuil
Summary: This paper introduces an approach that combines particle properties and process modeling to describe the behavior of iron ore in a laboratory-scale drum-type magnetic separator. Early information on iron ore processing behavior can be obtained through laboratory testing, automated mineralogy analysis, and process modeling.
MINERALS ENGINEERING
(2024)
Review
Engineering, Chemical
Sayed Janishar Anzoom, Ghislain Bournival, Seher Ata
Summary: This review discusses the benefits and challenges of coarse particle flotation, as well as recent developments in improving the process. Coarse particle flotation has various applications and offers advantages in technical, economic, and sustainability aspects. However, it also faces challenges such as particle detachment, transfer between phases, and persistence in the froth phase. Technological advancements, such as fluidized-bed flotation and processes enhancing bubble-particle attachment, have shown promising results in efficiently recovering larger particles.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Yimei Xiao, Jinchan Feng, Bingqiao Yang, Huihua Luo, Fang Zhou
Summary: In this study, the use of fulvic acid as a depressant for the flotation separation of chalcopyrite from arsenopyrite was investigated. It was found that fulvic acid strongly depressed arsenopyrite while having little influence on chalcopyrite flotation. The addition of calcium hypochlorite facilitated the adsorption of fulvic acid on arsenopyrite surface.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Bo Hao, Minqiang Fan
Summary: Particle-bubble attachment is crucial in coal and mineral flotation processes. In this study, the attachment process of low-rank coal particles to the bubble surface was simulated, revealing the important role of water film rupture in particle attachment.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Shuwei Wu, Shuai Wang, Guoqiang Wang, Longfei Fan, Jianbo Guo, Zhengbin Liu, Haoyan Zhang, Wei Guan, Yukuan Wang, Yewei Wu
Summary: This study analyzes the motion mode of eccentric roller crushers and proposes a calculation method for productivity. Through laboratory experiments, the results indicate that the proposed method can effectively estimate the productivity of eccentric roll crushers.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Hanna Miettinen, Malin Bomberg, Ozlem Bicak, Zafir Ekmekci, Paivi Kinnunen
Summary: Mineral processing requires large amounts of water, and reducing water consumption through recirculation and closing water loops is important. However, this can lead to the accumulation of contaminants in the process water, which can negatively affect the process performance. In this study, the impact of microorganisms on flotation performance was investigated, and ion exchange was evaluated for removing dissolved sulfur species and microorganisms from water. The results showed that adding microorganisms had a positive effect on flotation selectivity, especially for nickel. Different water types, process water and final tailings water, behaved slightly differently. Ion exchange proved to be effective in removing sulfur species and microorganisms, and dissolved air flotation was a successful pretreatment for ion exchange in removing microorganisms.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Canneng Chen, Song Zhang, Quanjun Liu, Luzheng Chen, Yongjun Xian, Yijie Wang
Summary: This study introduces the use of ultrasonic pretreatment to enhance the flotation separation of elemental sulfur and silver-bearing lead minerals from ultrafine residue. The results show that ultrasonic pretreatment effectively liberates associated sulfur and improves the separation of sulfur and silver-bearing lead minerals. Under optimized conditions, ultrasonic pretreatment significantly improves the recovery and grade of sulfur in the concentrate, as well as the recovery of lead and silver in the tailings.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Genzhuang Li, Fisher Wang, Bern Klein, Michael Deal, Aaron Wright, Hector Mezquita
Summary: This paper presents a stress-based approach for predicting and improving large-scale HIG mill performance through experimental testing and model calibration.
MINERALS ENGINEERING
(2024)
Article
Engineering, Chemical
Runpeng Liao, Shuming Wen, Jian Liu, Shaojun Bai, Qicheng Feng
Summary: This study demonstrates that the use of a DDA/DDTC mixed collector system can significantly improve the flotation performance of smithsonite. The synergistic effect between DDA and DDTC is confirmed, and the mixed collector system contributes to a decrease in solution surface tension. The use of FT-IR and XPS confirms the simultaneous physisorption and chemisorption of DDA and DDTC on the smithsonite surface, and contact angle measurements show that the mixed collector effectively enhances the hydrophobicity of smithsonite. Molecular dynamics simulations reveal the multilayer adsorption of DDTC and DDA on the smithsonite surface, with DDTC promoting the adsorption of DDA.
MINERALS ENGINEERING
(2024)
