Yong-bo Ma, Yang Chen, Le Tang, Si-yu Chen, Xin-xin Zhang, Qiang Li, Li-qing Ren, Yan-long Li, Ling-na Liu, Ping-qiang Gao
{"title":"Phase and microstructure of FeO–SiO2–CaO–MgO system in oxidizing atmosphere","authors":"Yong-bo Ma, Yang Chen, Le Tang, Si-yu Chen, Xin-xin Zhang, Qiang Li, Li-qing Ren, Yan-long Li, Ling-na Liu, Ping-qiang Gao","doi":"10.1007/s10163-025-02218-3","DOIUrl":"10.1007/s10163-025-02218-3","url":null,"abstract":"<div><p>To improve the enrichment and recycling of iron in iron-rich copper slag, the phase and microstructure of FeO–SiO<sub>2</sub>–CaO–MgO system in oxidizing atmosphere were studied after adding MgO and CaO to the iron-rich copper slag. Thermodynamic calculations by FactSage software show that the addition of MgO favors the formation of magnetite (Fe<sub>3</sub>O<sub>4</sub>) in the FeO–SiO<sub>2</sub>–CaO–MgO system and the formation of hematite (Fe<sub>2</sub>O<sub>3</sub>) is limited. The formed Fe<sub>3</sub>O<sub>4</sub> can exist stable above 1657K in air atmosphere. The calculations are proved by XRD patterns when Fe<sub>3</sub>O<sub>4</sub> is the only iron oxide in the oxidized system. Quantitative analysis by Mössbauer spectrum indicated that 96.29% iron was enriched in Fe<sub>3</sub>O<sub>4</sub> and MgFe<sub>2</sub>O<sub>4</sub> in the quaternary system, while Fe distributed in FeSiO<sub>3</sub> and Ca(Mg,Fe)Si<sub>2</sub>O<sub>6</sub> were 0.39% and 3.32%, respectively. The magnetite and bar-shaped wollastonite crystalized in molten slag were surrounded by augite formed in the solidification processing. The growth characteristics of magnetite were investigated to improve the enrichment of iron in the modified copper slag. Results show that iron was enriched in the flakes, scattered particles, and dendrite magnetite particles, which favors the iron-recycling from copper slag by magnetic-separation.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1752 - 1761"},"PeriodicalIF":2.7,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel recycling approach: separation and analysis of TCO-coated glass from discarded CdTe PV modules","authors":"Preeti, Sushil Kumar","doi":"10.1007/s10163-025-02212-9","DOIUrl":"10.1007/s10163-025-02212-9","url":null,"abstract":"<div><p>The ubiquitous adoption of photovoltaic (PV) modules as a renewable energy source for electricity generation has led to significant increase in their deployment. Among thin film-based Photovoltaics (PVs), Cadmium Telluride (CdTe) modules are efficient and widely used but face challenges on end-of-life (EoL) owing to incorporation of toxic materials. Present study introduces new strategies to recover transparent conducting oxides (TCO)-coated glass from discarded CdTe PV modules while separating toxic materials. The recycling process involves a straight forward approach comprising mechanical and chemical treatments. Standard oxidising solutions of H<sub>2</sub>SO<sub>4</sub> and H<sub>2</sub>O<sub>2</sub> were utilized to recover TCO-coated glass. The laser-scribed fluorine-doped tin oxide (FTO) glass was successfully recovered without compromising its properties. The recovered FTO exhibits very low average resistivity (10<sup>–4</sup> Ω-cm) and sheet resistance (13.70 Ω/sq.). The recovered FTO showed uniform transmission measured on 4 cm<sup>2</sup> area in the visible spectrum having average transmission ~ 80%, with a bandgap of ~ 3.68 eV, making it suitable for reuse in thin-film PV modules and optoelectronic devices. The residual solution was analysed using ICP-OES and ICP-MS to assess element concentration and neutralize toxicity. Further, the cost analysis has also been carried out for FTO-coated glass recovery.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1737 - 1751"},"PeriodicalIF":2.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nahla Faleh, Khaoula Ben Hnich, Zouhour Khila, Noureddine Hajjaji
{"title":"Environmental life cycle assessment of combined process for biodiesel and hydrogen production","authors":"Nahla Faleh, Khaoula Ben Hnich, Zouhour Khila, Noureddine Hajjaji","doi":"10.1007/s10163-025-02214-7","DOIUrl":"10.1007/s10163-025-02214-7","url":null,"abstract":"<div><p>The latest global events and the alarming environmental situation has highlighted the urgent need to switch from conventional energy sources to more sustainable bioenergy alternatives. The current study’s goal is to assess the environmental performances of biodiesel and hydrogen production from chicken fat waste. The suggested process is simulated using Aspen plus software, and it consists of the production of both biodiesel and hydrogen through the combination of a transesterification and an auto-thermal reforming processes. Life cycle assessment method is considered to appraise the environmental profile of the overall production chain of 1 GJ of energy output. Results show that to produce 1 GJ of energy, 80.4 kg eq CO<sub>2</sub> is emitted. This finding is highlighted by the important contribution of the chicken farm subsystem in most of the adapted impact categories. Mineral fertilizers’ substitution by chicken litter reduces the environmental impacts of the chicken farm subsystem, in particular global warming potential impact is reduced by 17%. The present investigation reveals the important contribution of the farming subsystem to the environmental performances of an energy production process from fatty waste revealing the strong connection between all the stakeholders in the supply chain of raw materials.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1708 - 1722"},"PeriodicalIF":2.7,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fostering a greener waste management system: assessing the impact of green transformational leadership on employees’ green innovation behavior","authors":"Haiqing Wang, Long Zhang, Mengting Cheng","doi":"10.1007/s10163-025-02213-8","DOIUrl":"10.1007/s10163-025-02213-8","url":null,"abstract":"<div><p>With the growing concerns about material cycles and waste management, research on green innovation behavior (GIB) in micro-organizations has become the focus of academic attention. This study seeks to elucidate the mechanisms of green transformational leadership (GTL) on employees’ green innovation behaviors. Utilizing pre-survey and three-stage questionnaire survey, 261 paired data were collected by 6-point Likert scale to test the research hypotheses. Based on social information processing theory (SIPT), the study found that green transformational leadership positively influences green innovation behavior, organization green climate (OGC), and green self-efficacy (GSE). Organization green climate mediates the relationship between green transformational leadership and employees’ green innovation behavior. Green self-efficacy does not play a significant role in mediating the relationship between green transformational leadership and employees’ green innovation behavior. In addition, harmonious environmental passion (HEP) positively moderates the effect of green transformational leadership on employees’ green innovation behavior. This study expands the relevant research on the relationship between green transformational leadership and employees’ green innovation behavior, and provides theoretical and practical foundation for the development and management of green innovation in enterprises.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1762 - 1776"},"PeriodicalIF":2.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adsorption of CO2 on agricultural waste biochar: synthesis, experimental and kinetic studies","authors":"Hanie Abbaslou, Bahador Abolpour","doi":"10.1007/s10163-025-02204-9","DOIUrl":"10.1007/s10163-025-02204-9","url":null,"abstract":"<div><p>Climate change is a pressing issue that requires immediate attention and action. A significant factor contributing to greenhouse gas emissions is CO<sub>2</sub>. To mitigate the impacts of climate change, it is essential to explore strategies aimed at decreasing atmospheric CO<sub>2</sub> levels. The Rice Husk Biochar (RHB) synthesized in a pyrolysis furnace and its CO<sub>2</sub> sorption was investigated in a thermogravimetric analyzer. The CO<sub>2</sub> uptake capacities at atmospheric pressure on the non-commercial Rice Husk Biochar with a 38.12 m<sup>2</sup>/g specific surface area at 280, 300, and 320 K are 3.0, 2.0 and 1.25 mmol/g solid, respectively. Kinetic studies have also shown that the adsorption of CO<sub>2</sub> on biochar follows a diffusion, nucleation and growth, and geometrical contracting volume mechanism, indicating that the process is highly efficient and rapid; facilitating the rapid removal of CO<sub>2</sub> from the atmosphere. Knowing the adsorption kinetic is essential for the design of the scaling-up adsorption systems. Low mean activation energy (5.42 kJ mol<sup>−1</sup>) estimated with a free model confirm a rapid reaction rate. The use of agricultural waste biochar for CO<sub>2</sub> adsorption offers a sustainable and effective alternative material to address the challenge of carbon dioxide emissions with further innovation in activation, surface area and texture improvements.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1354 - 1368"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A sustainable framework to address e-waste management solutions: an Indian perspective","authors":"Varun Kumar, Om Ji Shukla","doi":"10.1007/s10163-025-02203-w","DOIUrl":"10.1007/s10163-025-02203-w","url":null,"abstract":"<div><p>Electronic waste (e-waste) poses environmental and health challenges, necessitating efficient and sustainable management systems, especially in developing countries. To design such a system, a comprehensive examination of the current e-waste handling and recycling in cities of emerging countries is crucial. This study identifies 16 influencing factors (IFs) and categorizes them into five implication sectors based on the inter-consistency test, literature review, and expert opinions. The Fuzzy Interpretive Structural Modelling (F-ISM) and Best–Worst Method (BWM) analyze and evaluate these factors. Fuzzy MICMAC (cross-impact matrix multiplication applied to classification) analysis ensures the robustness of the proposed framework and characterizes identified IFs. The results reveal that ‘education and social behaviour’ and ‘research and development’ are the most significant sectors for sustainable e-waste management in developing countries. ‘Public awareness’ emerges as the most influential factor with a weightage of 20%. This research provides a valuable contribution towards attaining the sustainable development goals (SDGs) by presenting a structured approach to designing sustainable e-waste management systems in resource-constrained environments. Policymakers, environmental agencies, and stakeholders can use this framework to implement effective e-waste management strategies, mitigating improper e-waste disposal and promoting a cleaner and greener future for developing countries.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1637 - 1662"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dounia Azerkane, Meriam El Ouahabi, Achraf Harrou, Faiçal El Khazanti, El Khadir Gharibi
{"title":"Potential use of phosphogypsum as an additive for stabilizing soft kaolinite soils: enhancement of the foundation layer","authors":"Dounia Azerkane, Meriam El Ouahabi, Achraf Harrou, Faiçal El Khazanti, El Khadir Gharibi","doi":"10.1007/s10163-025-02216-5","DOIUrl":"10.1007/s10163-025-02216-5","url":null,"abstract":"<div><p>The shear resistance of clayey soils can be improved through chemical stabilization with hydraulic lime. This study examines the stabilization of soft kaolin clayey soils by adding phosphogypsum (PG) waste and lime. This approach reuse of PG waste, typically stored in piles, by integrating it into kaolin-rich soils to improve their stability. Structural, microscopic, geotechnical, and mechanical characterization techniques were employed to enhance the understanding of soil stabilization mechanisms and their potential applications in road construction. Kaolinite lacks pozzolanic reactivity with lime, but crystalline and amorphous aluminosilicates in the soil facilitate the formation of calcium silicate hydrate (CSH) gel, which binds soil particles cohesively. The addition of PG to the soil-lime mixture allows soil stabilization through the formation of ettringite and CSH gel, and the crystalline needle-like of phosphogypsum. The mechanical compressive strength increases from 0.35 MPa for raw earth mortar consisting of 90% soil and 10% lime to 0.80 MPa for a mixture consisting of 68% soil, 10% lime and 32% PG. The compressive mechanical strength obtained by adding PG to kaolin clay exceeds the minimum threshold of 0.66 MPa required for the structural design of road pavements.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1691 - 1707"},"PeriodicalIF":2.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Life cycle assessment of mortar with recycled brick dust and enhancement of mechanical performance by incorporating nylon fiber","authors":"Sk.Rakibul Islam, Mahabuba Mokter Jhumur, Sanjima Nabila Majumder, Rupak Mutsuddy","doi":"10.1007/s10163-025-02217-4","DOIUrl":"10.1007/s10163-025-02217-4","url":null,"abstract":"<div><p>Recycling brick dust from demolished structures promotes waste management but requires strength and environmental impact assessments. Incorporating fibers into the mortar with recycled dust offers a novel solution to enhance mechanical properties compared to conventional mortar. This research investigates the environmental impacts and mechanical enhancement of cement mortar by incorporating recycled brick dust and nylon fibers, derived from waste ropes. Utilizing four volume fractions of nylon fibers (0.1, 0.2, 0.35, 0.5%), the study assesses the impact on compressive strength, flexural strength, and toughness, alongside environmental and cost benefits compared to traditional materials. Results from the study indicate that the optimal nylon fiber content of 0.2 volume fraction significantly improves compressive and flexural strengths. Approximately, 75% enhancement of flexural toughness was found for 0.35% volume fraction. Scanning electron microscopy analysis reveals enhanced bonding and reduced crack formation. Life cycle analysis confirms the environmental benefits of recycled brick dust over river sand, highlighting its role in promoting sustainability in the concrete industry without compromising performance. Approximately, 20% reduction in the environmental impact is possible using brick dust instead of river sand as fine aggregate. This approach addresses waste management challenges and offers a cost-effective, environmentally friendly alternative to conventional mortar materials.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1678 - 1690"},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Response surface optimization of hybrid composites reinforced crab shell flour and rubberwood sawdust for waterproof composite products in tropical countries","authors":"Sriwan Khamtree, Chatree Homkhiew, Chainarong Srivabut, Thanate Ratanawilai, Surasit Rawangwong","doi":"10.1007/s10163-025-02219-2","DOIUrl":"10.1007/s10163-025-02219-2","url":null,"abstract":"<div><p>Hybrid composites reinforced with crab shell (CS) waste and rubberwood sawdust (RWS) were developed for applications in tropical countries. D-optimal mixture design was applied in experiments, to determine the effects on three main fractions including recycled polypropylene (rPP), RWS, and CS on the mechanical properties after immersing in distilled water and seawater. Response Surface Methodology (RSM) was used to identify the optimal formulation that maximizes the mechanical properties. The results indicated that the mechanical properties fit best with the quadratic models. Statistical analysis revealed that all the models had a less <i>p</i> value than 0.05 and could accurately predict the mechanical properties. Moreover, these factors negatively affected the mechanical properties whereas the CS had the highest coefficient of all the models. Mechanical properties of the hybrid composites immersed in seawater decreased significantly compared to those immersed in distilled water. Therefore, the optimal formulation of overall mechanical properties was 55.1-wt% rPP, 32.5-wt% RWS, 6.9-wt% CS, 4.0-wt% maleic anhydride-grafted polypropylene, 0.5-wt% ultraviolet stabilizer, and 1.0-wt% lubricant with a desirability score of 0.976. Finally, the optimal formulation of the hybrid composites has been presented and is expected to be applied for applications and waste management from natural materials.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1777 - 1800"},"PeriodicalIF":2.7,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abdulaziz Alalyani, Qing Lu, Ahmed Elnihum, Asad Elmagarhe, Mohammad Alharthai
{"title":"Investigation of the performance of open-graded asphalt mixture containing waste glass and fly ash","authors":"Abdulaziz Alalyani, Qing Lu, Ahmed Elnihum, Asad Elmagarhe, Mohammad Alharthai","doi":"10.1007/s10163-025-02207-6","DOIUrl":"10.1007/s10163-025-02207-6","url":null,"abstract":"<div><p>This study explores the sustainable development of road infrastructure by substituting conventional aggregates with waste glass and Type C fly ash in open-graded asphalt mixtures. Performance evaluations through laboratory experiments showed that replacing virgin granite aggregate with waste glass (up to 30%) and using Type C fly ash as filler had minimal impact on air-void content, indirect tensile strength, and Marshall stability. However, permeability decreased for mixtures with both unmodified (PG 67-22) and modified (PG 76-22) binders. For mixtures with PG 76-22 binder, moisture resistance improved with 10% waste glass replacement and fly ash filler while raveling resistance increased with higher waste glass content. These findings demonstrate the potential of using waste glass and fly ash in open-graded asphalt mixture, offering a sustainable alternative for pavement construction.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"27 3","pages":"1663 - 1677"},"PeriodicalIF":2.7,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143861403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}