Journal of Material Cycles and Waste Management最新文献

{"title":"Recovery of samarium and cobalt/iron oxide from SmCo magnets through acid baking and water leaching","authors":"Elif Emil-Kaya,&nbsp;Xi Lu,&nbsp;Bernd Friedrich","doi":"10.1007/s10163-024-02096-1","DOIUrl":"10.1007/s10163-024-02096-1","url":null,"abstract":"<div><p>Rare earth elements (REEs) and cobalt (Co) are listed as critical raw materials because of their importance in global industrial production growth, high supply risk, and economic significance. The recovery of Co and REEs from secondary resources is therefore proposed as a key countermeasure to address this concern. In this study, a straightforward process that integrates acid baking and water leaching is proposed for the recovery of samarium (Sm) and Co from scrap SmCo magnets. Firstly, the chemical composition of SmCo magnets is revealed by ICP-OES and XRF. The Taguchi experimental design technique is employed to optimize nitric acid baking and water leaching. Based on the thermal decomposition behavior of Co, Fe, and Sm, the acid baking temperature is studied for the conversion of metal nitrates, excluding REEs nitrates, into metal oxides. The optimal conditions for acid baking and water leaching are identified, and a reactor for the pilot-scale acid baking process is proposed. The optimum parameters are tested with the proposed reactor.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3905 - 3916"},"PeriodicalIF":2.7,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02096-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lactic acid-fermented by-product of Shochu distillery reduces anxiety behavior in Neuropeptide Y knockout zebrafish by the regulation of isotoin neuron","authors":"Momoka Hibarino,&nbsp;Eri Aoki,&nbsp;Yurina Kubo,&nbsp;Haruri Nagata,&nbsp;Sayaka Tateno,&nbsp;Kenzo Sakaguchi,&nbsp;Hirofumi Kawaji,&nbsp;Kazuhiro Shiozaki","doi":"10.1007/s10163-024-02092-5","DOIUrl":"10.1007/s10163-024-02092-5","url":null,"abstract":"<div><p>The development of techniques to reduce stress in the aquaculture industry is essential for the good growth, low mortality, and high flesh quality of farmed fish. Shochu is a traditional Japanese alcoholic beverage, and the disposal of large amounts of Shochu lees waste has been a problem. As Shochu lees contain low-molecular-weight compounds, which are thought to have health benefits, the lactic acid-fermented by-product of Shochu distillery (FBPSD) was tested to estimate its anti-stress effects in neuropeptide Y-knockout zebrafish (NPY-KO), which exhibit high anxiety and low sociability, as a farmed fish model.</p><p>In the Black-White preference test, NPY-KO preferred the black area over the white area due to fear, whereas NPY-KO fed the FBPSD showed a higher preference for the white area with more swimming distance than the control group. In the 3-chambers test, NPY-KO showed low sociability with the unfamiliar zebrafish group, whereas FBPSD-fed NPY-KO showed high sociability with the group. The mRNA level of isotocin, the homologue of human oxytocin, was significantly increased in the brains of FBPSD-fed zebrafish. The oxytocin receptor antagonists L-368,899 attenuated the effects of FBPSD in the 3-chambers test. These results suggest that FBPSD attenuates anxiety in NPY-KO zebrafish by activating isotocin neurons.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3852 - 3863"},"PeriodicalIF":2.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02092-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circular economy in fashion: consumer awareness and lifestyle, and environmental impact on second-hand clothes","authors":"Xiaqing Chen,&nbsp;Tomohiro Tabata","doi":"10.1007/s10163-024-02091-6","DOIUrl":"10.1007/s10163-024-02091-6","url":null,"abstract":"<div><p>This study aimed to identify the benefits and challenges of clothing reuse, both in terms of fashion companies collecting unwanted clothing and consumer attitudes, focusing on Japanese fashion companies and consumers To achieve the goal, this study conducts a survey to gain an overview on the supply chain of fashion brands carrying out a take-back program in Japan. This study also conducted a questionnaire survey to gage consumers’ awareness and purchasing decisions regarding second-hand clothes and to clarify the annual CO₂ emissions generated by different clothing maintenance habits among second-hand clothes consumers. Business review results revealed that large companies only take back their products for reuse or recycling to control product quality. The questionnaire survey results revealed the primary motivations for purchasing second-hand clothes were financial advantages and the desire for fashionable styles. The environmental impact assessment results indicated that purchasing a second-hand shirt in the context of a circular economy produces 6.71 kg-CO₂ less than buying a newly produced shirt within a linear economy (9.23 kg-CO₂). Additionally, based on the questionnaire results, this study unveiled how laundry habits affect CO₂ emissions during the garment use phase.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3876 - 3892"},"PeriodicalIF":2.7,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453074","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":"Simulating the trajectory of conductive particles in positive high-voltage electrostatic separators and optimizing parameters","authors":"Keqian Zhu,&nbsp;Wenjian Wang,&nbsp;Zhenxu Wang,&nbsp;Junliang Lin,&nbsp;Huliang Zhuang,&nbsp;Tao Sun","doi":"10.1007/s10163-024-02088-1","DOIUrl":"10.1007/s10163-024-02088-1","url":null,"abstract":"<div><p>To enhance the sorting efficiency of electrostatic separation for various conductive particles, a numerical model for the trajectory of conductive particles under the combined electric and gravitational fields was established. Initially, the distribution of the spatial electric field was analyzed using COMSOL Multiphysics, followed by the development of a program in MATLAB to calculate particle trajectories. The effects of particle size, voltage, angular velocity of the grounding roller, and the distance from the collection trough to the center of the grounding roller on the sorting efficiency of conductive particles (with radii larger than 1 mm) under positive high-voltage conditions were examined. Then the single-factor changing method and the response surface methodology were used to optimize the above parameters. The results showed that there was an inflection point for the angular velocity of the grounding roller; below this point, the sorting efficiency increased with the angular velocity, but beyond it, the efficiency decreased as the angular velocity continued to increase. Additionally, after the response surface methodology was used to optimize the parameters, the sorting efficiency was increased by 9 times. This study provides a theoretical foundation for the design and parameter control of new electrostatic separators.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3864 - 3875"},"PeriodicalIF":2.7,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452932","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":"Sustainable solution selection for solid waste incineration fly ash: a multicriteria framework based on objective weights and fusion ranks","authors":"Di Xu","doi":"10.1007/s10163-024-02082-7","DOIUrl":"10.1007/s10163-024-02082-7","url":null,"abstract":"<div><p>Fly ash (FA), a byproduct of municipal solid waste incineration (MSWI), poses significant hazards to urban development, necessitating its sustainable treatment. This study proposes a systematic decision support tool to identify the most sustainable MSWI FA treatment technology among various options, considering diverse criteria. The research introduces a hybrid Multi-Criteria Decision-Making (MCDM) framework integrating the Grey Relational Coefficient (GRC) into the Analytical Network Process (ANP) for objective criterion weighting. Additionally, a Projection-based Programming (PbP) approach enhances the reliability of ranking MSWI FA treatment alternatives by reconciling disparate sequences from different MCDM techniques. This work pioneers the early application of MCDM methods in prioritizing sustainable MSWI FA treatment, offering two crucial mathematical contributions. Firstly, the GRC-ANP method objectively assigns weights by capturing statistical relationships among criteria. Secondly, the PbP approach consolidates varied MCDM outcomes to provide a reliable ranking. Testing five technologies against eight sustainability criteria validates the robustness and effectiveness of the framework, affirming its potential in aiding decision-making for sustainable MSWI FA treatment solutions.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3811 - 3823"},"PeriodicalIF":2.7,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452965","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":"Characterization of municipal solid waste with the perspective of biofuels and bioproducts recovery in Northeast Mexico","authors":"Rodolfo Daniel Silva Martínez,&nbsp;Lourdes Díaz Jiménez,&nbsp;Oscar Aguilar Juárez,&nbsp;Salvador Carlos Hernández","doi":"10.1007/s10163-024-02069-4","DOIUrl":"10.1007/s10163-024-02069-4","url":null,"abstract":"<div><p>This work focuses on analyzing the physical composition of municipal solid waste (MSW) and the physicochemical characterization of the organic fraction of municipal solid waste (OFMSW) in a city in Northeast Mexico to propose an adequate treatment and valorization system. Diverse samples were analyzed over 5 months at the city of Saltillo landfill, where the daily discarded MSW was classified into household (HW), central market waste (CMW), and public areas and parks waste (PPW). For the HW and CMW, the fraction with the highest proportion was the organic residues from food products, with 22.15 and 25.78%, followed by other organic wastes (manure, yard waste, leaves, etc.) at 12.58 and 10.24%, respectively. Furthermore, the organic fraction was segregated from the rest of the MSW and classified into four subtypes, and their physical composition and physicochemical characteristics were determined. The results contribute to laying the foundations for the proper treatment of the OFMSW not just in the studied region but also in cities with similar conditions. Moreover, the OFMSW’s feasibility in treating via bioenergy technologies is revealed, and this research proposes a biorefinery treatment pathway through dark fermentation followed by high solids anaerobic digestion generating bioenergy and diverse bioproducts.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3665 - 3680"},"PeriodicalIF":2.7,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02069-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative analysis of life cycle assessment and material circularity indicator: study applied to smart electricity meter polycarbonate parts","authors":"Mariane Guerra Martins,&nbsp;Andrea Oliveira Nunes,&nbsp;Sandro Donnini Mancini,&nbsp;Cristina Belli,&nbsp;Tiago Barreto Rocha,&nbsp;Virginia Aparecida Silva Moris","doi":"10.1007/s10163-024-02077-4","DOIUrl":"10.1007/s10163-024-02077-4","url":null,"abstract":"<div><p>There is growing interest in metrics for developing circular and sustainable products. Life Cycle Assessment (LCA) and the Material Circularity Indicator (MCI) are prominent for analyzing environmental performance and product circularity, respectively. This study compares these methodologies applied to a case of plastic parts made from virgin Polycarbonate + 10% Fiber Glass for smart electricity meters. Sensitivity analyses were conducted on the recycled content used and the final treatment of parts. Both methodologies are sensitive to recycled content usage. The best scenario (SA1-10) features 100% recycled content and full recycling of parts, while the worst scenario (SA2-1) uses 100% virgin content with all parts disposed of in landfills. The results highlight similarities and differences between the methodologies. MCI focuses on material source, life extension, and end-of-life treatment to measure circularity. LCA covers a broader range of impact categories, including resource use, human health, and ecosystem impacts, making it more comprehensive for environmental analysis. Both emphasize the importance of recycled content and end-of-life treatment, underscoring the benefits of recycling in reducing environmental impacts and enhancing circularity.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3777 - 3786"},"PeriodicalIF":2.7,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452936","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":"Multi-criteria analysis as an emerging tool for biowaste integrated management: a review from food waste prevention to by-products use","authors":"Mariana Hammerschmitt Ecco,&nbsp;Marcelo Seleme Matias,&nbsp;Armando Borges de Castilhos Junior","doi":"10.1007/s10163-024-02087-2","DOIUrl":"10.1007/s10163-024-02087-2","url":null,"abstract":"<div><p>Despite the variety of technologies available for the valorization of biowaste, this fraction of municipal solid waste is usually disposed of in landfills and dumpsites in undeveloped and developing countries. The selection of technological strategies compatible with the reality of each location represents an essential role in the success and continuity of the operation of the facilities. The best strategy will result from combining different environmental, economic, social, and technical dimensions, confronted with the interests of the stakeholders and the legal and policy contexts. Due to the complexity of different criteria, alternatives, and interests, a Multi-criteria Decision-making (MCDM) methodology is recommended to ensure the quality of the decision-making process. This study presents a systematic review of publications that have applied multi-criteria analysis as a decision support tool for the selection of biowaste management strategies. The different stages of management are discussed separately, highlighting the change in paradigms over time. It was found that less than a hundred studies have addressed it so far, with Asia contributing to most publications. However, the timeline shows that the number of publications is increasing, with multi-criteria models representing great potential to support decisions at any individual management stage, from preventing food waste to using by-products. Integrated multi-criteria approach that combines all stages of biowaste management, however, is still scarce in the literature.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3324 - 3340"},"PeriodicalIF":2.7,"publicationDate":"2024-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452933","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":"Effects of fly ash modification on phosphorus adsorption of sludge-based biochar from aqueous solution","authors":"Yanxin Zuo,&nbsp;Tian Tian,&nbsp;Shuangchao Tian,&nbsp;Liguo Wan,&nbsp;Benyi Xiao,&nbsp;Lin Li","doi":"10.1007/s10163-024-02090-7","DOIUrl":"10.1007/s10163-024-02090-7","url":null,"abstract":"<div><p>Fly ash (FA) was used to modify sludge-based biochar (SBC) to improve its phosphorus (P) adsorption capacity, which was conducted by adding FA in the dried sewage sludge before 600 °C pyrolysis. FA modification increased the surface area of SBC, decreased its average pore diameter, increased its Al and Fe contents, improved its crystallinity, and enhanced its maximal P adsorption capacity from 12.37 mg adsorbed P/g SBC (mg/g) to 14.05 mg/g. The P adsorption process was well fitted by the pseudo-second-order kinetic and Langmuir isotherm models, indicating that P adsorption onto SBC was a single molecular layer adsorption dominated by chemical adsorption. The P adsorption onto SBCs was spontaneous and endothermic. FA modification improved the reusability of SBC by increasing the retention rate from 74.9 ± 5.8% to 80.8 ± 5.4% after four adsorption and desorption cycles. FA modification changed the P adsorption mechanism of SBC from ligand exchange, electrostatic attraction, and ion exchange to surface inner-sphere complex formation, electrostatic attraction, and ion exchange.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3893 - 3904"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453038","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":"Impacts of washing and deodorization treatment on packaging-sourced post-consumer polypropylene","authors":"Lorenz P. Bichler,&nbsp;Elisabeth Pinter,&nbsp;Mitchell P. Jones,&nbsp;Thomas Koch,&nbsp;Nina Krempl,&nbsp;Vasiliki-Maria Archodoulaki","doi":"10.1007/s10163-024-02085-4","DOIUrl":"10.1007/s10163-024-02085-4","url":null,"abstract":"<div><p>Emerging legal requirements will likely considerably heighten demand for high-quality recycled raw materials for e.g., packaging and automotive applications; key EU legislation mandates recycling as the future end-of-life option for municipal solid plastic waste. Yet recycled plastic use remains low due to safety concerns, undesirable aesthetic, olfactory, and mechanical properties, mainly attributable to contaminants present in recyclates. Advanced treatment options for recovered polypropylene (PP) packaging and the impact of such treatments on the polymer are currently poorly documented. We investigated the effectiveness of hot/cold washing and hot air devolatilization treatments in removing volatile substances from residential post-consumer PP plastic waste to improve its scope of application and value and to assess possible side effects on mechanical and processing parameters. Cold- and hot-washed recyclates exhibited similar contaminant levels and most substances were removed within 7 h. The recycling procedure had no adverse effects on mechanical or processing parameters although reprocessing caused polymer degradation, indicated by decreasing viscosity, elongation at break, and tensile strength. Washing and hot air devolatilization treatment of plastic wastes improve their scope of application and value by enhancing mechanical properties and considerably reducing the amounts of odorous substances, but is often not suited to high-quality applications, such as packaging. The dominance of packaging waste and strict legislation on food-grade recyclate applications will make widespread recyclate use challenging since it represents the primary use of plastic. Recyclate must consequently be extensively utilized in non-food contact applications until advances in waste sorting, washing, and devolatilization yield less contaminated recyclates with improved properties.</p></div>","PeriodicalId":643,"journal":{"name":"Journal of Material Cycles and Waste Management","volume":"26 6","pages":"3824 - 3837"},"PeriodicalIF":2.7,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10163-024-02085-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142453039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}