Waste management最新文献_第4页

Pollution analysis of micro/nano meters glass particles and benzene produced from the friction cleaning process for the recovery of waste glass.

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-12-03 DOI: 10.1016/j.wasman.2024.11.045

Yusen Wu, Chunmu Wang, Ying Shen, Jujun Ruan

{"title":"Pollution analysis of micro/nano meters glass particles and benzene produced from the friction cleaning process for the recovery of waste glass.","authors":"Yusen Wu, Chunmu Wang, Ying Shen, Jujun Ruan","doi":"10.1016/j.wasman.2024.11.045","DOIUrl":"https://doi.org/10.1016/j.wasman.2024.11.045","url":null,"abstract":"<p><p>Friction cleaning can effectively remove the paint coating (adhesive organic impurities) on the surface of waste glass, and promote the closed-loop recovery of urban silicic acid resources in industrial applications. However, due to a large number of mechanical collisions and wear during use, it is easy to produce powder dust and organic waste gas, and the pollution characteristics and mechanism have not been studied. In this study, the ball milling experiment was designed and the pollutants were tested and evaluated. The results show that a large number of micro/nano meters glass particles with an average size of less than 4.5 μm are generated by low-speed ball milling, and the risk of inhalation is as high as 50.75 mg/kg·m<sup>3</sup>. Main organic waste gases include cyclopropane, hexane, but-2-ene, and benzene with the value of Incremental lifetime cancer risk reaching 3.4 × 10<sup>-2</sup> indicating definite carcinogenic risks for benzene exposure. The C-C bond between hydroxyl acrylic acid molecules and the C-O bond between phenolic propylene oxide molecules are easily broken to form small molecular chains, and the complex product is due to the complex cross-linking with the silane coupling agent. It is suggested that a special dust collector for micro/nano meters glass particles should be added while adopting an activated carbon catalytic combustion process to treat VOCs in the exhaust gas. This study revealed the contamination of micro/nano meters glass particles and benzene during friction cleaning to remove organic coatings in waste glass recycling.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"193 ","pages":"1-10"},"PeriodicalIF":7.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Evaluation of thermal parameters with geothermal energy recovery from a cold climate municipal solid waste landfill.

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-12-03 DOI: 10.1016/j.wasman.2024.11.040

Vladimir Buelvas, Logan Morhart, Tyler Casavant, Ian Fleming, Claudio Mahler

{"title":"Evaluation of thermal parameters with geothermal energy recovery from a cold climate municipal solid waste landfill.","authors":"Vladimir Buelvas, Logan Morhart, Tyler Casavant, Ian Fleming, Claudio Mahler","doi":"10.1016/j.wasman.2024.11.040","DOIUrl":"https://doi.org/10.1016/j.wasman.2024.11.040","url":null,"abstract":"<p><p>This study presents finite element method (FEM) modeling with COMSOL Multiphysics to estimate the thermal properties of a waste landfill through back-analysis of temperature responses from buried thermistors during a full-scale multi-week active thermal response test. Field tests were conducted at the Loraas MSW landfill in Saskatoon, Canada, using instrumented equipment, including a vertical borehole heat exchanger and thermistor strings. The test consisted of two phases: a heat injection test during the summer and a heat extraction test in the winter. The study focused on a landfill 25 m deep, observing temperature changes at various depths over time. The effect of heat generation rate (HGR) on landfill temperature was investigated. Thermal conductivity and volumetric heat capacity increase with depth, with close alignment between summer and winter results, validating the tests. This research enhances the understanding of thermal parameters in MSW landfills by combining field tests and numerical modeling, offering insights into landfill behavior in cold climates. These findings hold significance for optimizing geothermal energy recovery from such landfills, calibrating thermal parameters for coupled models in landfills, and improving waste management practices.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"193 ","pages":"11-22"},"PeriodicalIF":7.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142781280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Assessing the resource potential of paper and board in lightweight packaging waste sorting plants through manual analysis and sensor-based material flow monitoring. 通过人工分析和基于传感器的物料流监测，评估轻质包装废弃物分拣厂中纸张和纸板的资源潜力。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-12-01 Epub Date: 2024-09-02 DOI: 10.1016/j.wasman.2024.07.034

Alena Maria Spies, Nils Kroell, Annika Ludes, Bastian Küppers, Karoline Raulf, Kathrin Greiff

{"title":"Assessing the resource potential of paper and board in lightweight packaging waste sorting plants through manual analysis and sensor-based material flow monitoring.","authors":"Alena Maria Spies, Nils Kroell, Annika Ludes, Bastian Küppers, Karoline Raulf, Kathrin Greiff","doi":"10.1016/j.wasman.2024.07.034","DOIUrl":"10.1016/j.wasman.2024.07.034","url":null,"abstract":"<p><p>The recycling of paper and board (PB) yields economic and environmental advantages compared to primary paper production. However, PB from lightweight packaging (LWP) waste is currently not comprehensively reintegrated into the paper value stream. To develop an adapted recycling process for PB from LWP, PB quantities, qualities, and fluctuations ranges in LWP are required. Currently, no sufficient database is available. Therefore, we developed a methodical approach and conducted a case study to access the PB potential in LWP sorting plants using manual analysis and sensor-based material flow monitoring. Differences resulting from seasonal variations, materials from different settlement structures, and fluctuation ranges in LWP composition over two weeks have been investigated. PB contents in the input of 6.5 wt% (ww) and 5.9 wt% (ww) were determined for winter and summer sampling campaigns, respectively. The PB product stream amounted to 5.7 wt% (ww, winter) and 4.8 wt% (ww, summer). Around 45 wt% (ww) of PB from the PB product stream was classified as misplaced by the consumer and should have been discarded in separate paper collections. Based on the determined PB quantities and qualities, a potential of usable and in the PB product stream available PB in LWP was determined. The technically available and usable PB potential in German LWP waste amounts to 89,000 to 100,000tons per year (average PB yield of around 65 wt% (ww)). The methodical approach can be adapted for sorting plant balances. The results can contribute to developing an adapted recycling process for PB from LWP.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"189 ","pages":"196-210"},"PeriodicalIF":7.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142112755","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Efficient recovery of valuable metals from electroplating sludge smelting soot via a combined alkali roasting and acid-free aluminum salts leaching methods

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-30 DOI: 10.1016/j.wasman.2024.11.038

Yufeng Wu, Fan Yang, Hang Zhao, Ziyi Xu, Qijun Zhang

{"title":"Efficient recovery of valuable metals from electroplating sludge smelting soot via a combined alkali roasting and acid-free aluminum salts leaching methods","authors":"Yufeng Wu, Fan Yang, Hang Zhao, Ziyi Xu, Qijun Zhang","doi":"10.1016/j.wasman.2024.11.038","DOIUrl":"10.1016/j.wasman.2024.11.038","url":null,"abstract":"<div><div>Electroplating sludge smelting soot (ESSS), contains high-grade value metals (such as Zn, Sn, Pb, precious metals Au and Pt) and large amounts of harmful elements Br and S, which could potentially cause valuable resources wastage and environmental pollution, therefore requires responsible recycling. An efficient and eco-friendly process for the cascade recovery of Zn, Sn, Pb, and precious metals Au and Pt from ESSS was proposed, combining NaOH roasting and acid-free aluminum salts leaching. Optimal NaOH roasting conditions achieved high extraction efficiencies for Zn, Sn, and Pb, which were then separated via water leaching. A novel Al(NO<sub>3</sub>)<sub>3</sub> + AlCl<sub>3</sub> leaching system was developed to recover Au and Pt from the enriched residue. By optimizing the NaOH roasting conditions and the Al(NO<sub>3</sub>)<sub>3</sub> + AlCl<sub>3</sub> leaching conditions, the decomposition and conversion of 99.91 % Zn, 99.56 % Sn, and 98.72 % Pb in ESSS were achieved, simultaneously accomplishing the leaching of 87.89 % Au and 100 % Pt. Mechanisms of NaOH roasting and Al(NO<sub>3</sub>)<sub>3</sub> + AlCl<sub>3</sub> leaching were elucidated using XRD, SEM, ICP, XRF, and DFT calculations. Leaching kinetics of Au and Pt were also studied. Finally, Au and Pt were efficiently recovered from the leaching solution by lead powder replacement. This study provides a feasible and promising solution for the green and efficient recovery of valuable metals from ESSS.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 102-113"},"PeriodicalIF":7.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Laser flash pyrolysis of face mask waste to vinylidene-terminated PP wax and further functionalized as compatibilizer

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-30 DOI: 10.1016/j.wasman.2024.11.036

Hao-Qin Zhang , Lun Chen , Chang-Qian Chen , Fu-Lu Chang , Yi-Xun Tian , Xia Jiang , Wei-Tao Huang , Bin Hu , Xian-Wu Cao , Xiao-Chun Yin , Guang-Jian He

{"title":"Laser flash pyrolysis of face mask waste to vinylidene-terminated PP wax and further functionalized as compatibilizer","authors":"Hao-Qin Zhang , Lun Chen , Chang-Qian Chen , Fu-Lu Chang , Yi-Xun Tian , Xia Jiang , Wei-Tao Huang , Bin Hu , Xian-Wu Cao , Xiao-Chun Yin , Guang-Jian He","doi":"10.1016/j.wasman.2024.11.036","DOIUrl":"10.1016/j.wasman.2024.11.036","url":null,"abstract":"<div><div>During the COVID-19 pandemic, face masks, as personal protective equipment (PPE) against the coronavirus (SARS-CoV-2), have been widely used worldwide. How to properly dispose of used PPE has brought a huge challenge to the ecosystem and human health. Here we proposed a laser flash pyrolysis (LFP) strategy to upcycle the used polypropylene(PP) face mask to vinylidene-terminated PP wax (PP-VDT) and further functionalized for compatibilizer application. Carbon black (0.2 wt%) was mixed with masks as a light absorbent to improve photothermal conversion efficiency. An infrared laser was adopted as the thermal source to quickly depolymerize the used PP face mask within just several milliseconds. The pyrolysis fragments quickly vaporized out to form PP-VDT with high selectivity (average terminal vinylidene per molecular chain was up to 1.55). The PP-VDT appeared as white solid particles which were clean and high purity. In addition, PP-VDT as polymer precursors could be further functionalized by thiol-ene chemistry to hydroxyl-terminated PP (PP-OH) and isocyanate-terminated PP (PP-HMDI), which could be used as compatibilizer in PLA/PP blends to decrease the size of the dispersed PP phase and to improve tensile strength. Therefore, this LFP technique was an effective upcycling method for PP face masks to obtain value-added products.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 91-101"},"PeriodicalIF":7.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Revisiting alkali pretreatment to transform lignocellulose fermentation with integration of bioprocessible lignin

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-29 DOI: 10.1016/j.wasman.2024.11.035

Jiachen Sun , Le Zhang , Kai-Chee Loh

{"title":"Revisiting alkali pretreatment to transform lignocellulose fermentation with integration of bioprocessible lignin","authors":"Jiachen Sun , Le Zhang , Kai-Chee Loh","doi":"10.1016/j.wasman.2024.11.035","DOIUrl":"10.1016/j.wasman.2024.11.035","url":null,"abstract":"<div><div>This study emphasized the synergistic production of bioprocessible lignin and carbohydrates during a sequential liquid hot water and alkali pretreatment of lignocellulose, facilitating their subsequent individual fermentation. Increasing the dose of alkaline lignin from 0 to 8 g/L inhibited cell growth in anaerobic digestion, with varying levels of inhibition observed in the following order: hydrolytic bacteria < acidogens < acetogens. Alkali pretreatment was adapted to maximize yields of bioprocessible lignin liquor without compromising utilization of the carbohydrates. Increasing the NaOH dose from 50 to 200 mg/g-feedstock monotonically improved lignin yields, but further increases in alkali loading led to a decline in lignin recovery. Volatile fatty acids production from anaerobic digestion of the carbohydrate moiety consistently increased with higher NaOH doses. The optimal conditions for maximizing lignin yields were determined to be 105 °C for 30 min, with NaOH loading in the range of 150–200 mg/g-feedstock, resulting in approximately 80 % lignin recovery, of which 35 % was biologically utilizable. Liquid hot water treatment prior to alkali pretreatment was confirmed as necessary to preserve carbohydrates of 0.1 g/g-feedstock at a low temperature of 70 °C. These findings are crucial for economically producing bioprocessible lignin without carbohydrate loss, a key step towards achieving full lignocellulose valorization.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 82-90"},"PeriodicalIF":7.1,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Efficacy of composite bacterial deodorant constructed with Camellia sinensis and its in-situ deodorization mechanism on pig manure

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-29 DOI: 10.1016/j.wasman.2024.11.034

Jialing Wang , Chenchen Huan , Qingyang Lyu , Xueping Tian , Yang Liu , Gaosheng Ji , Zhiying Yan

{"title":"Efficacy of composite bacterial deodorant constructed with Camellia sinensis and its in-situ deodorization mechanism on pig manure","authors":"Jialing Wang , Chenchen Huan , Qingyang Lyu , Xueping Tian , Yang Liu , Gaosheng Ji , Zhiying Yan","doi":"10.1016/j.wasman.2024.11.034","DOIUrl":"10.1016/j.wasman.2024.11.034","url":null,"abstract":"<div><div>Here, we constructed a novel bacterial deodorant (BD) composed of <em>Delftia tsuruhatensis</em>, <em>Paracoccus denitrificans</em>, <em>Pediococcus acidilactici</em>, and <em>Bacillus velezensis</em>. The BD alone removed 64.84 % of NH<sub>3</sub>, 100 % of H<sub>2</sub>S, and 63.68 % of comprehensive odor (OU) during a five-day fermentation of pig manure. The effect was enhanced by introducing <em>Camellia sinensis</em> in the composite bacterial deodorant (CBD) treatment, with the removal efficiency (RE) of NH<sub>3</sub> and OU being 88.68 % and 88.14 %, respectively. In prolonged trials, maximum RE of NH<sub>3</sub>, H<sub>2</sub>S and OU RE reached 90.16 %, 92.32 % and 100 % in CBD group. Bacterial composition of manure revealed that the abundance of odor-producing microbes (<em>Kurthia</em>, <em>Solibacillus</em>, <em>Proteiniphilum</em> and <em>Acholeplasma</em>) and potential pathogens decreased after CBD application. Functional prediction and correlation analyses indicated that the process of nitrification, denitrification and S/N assimilation were facilitated, while S/N mineralization and methanogenesis processes might be inhibited. This deodorant promoted the conversion of malodorous substances into non-odorous forms, establishing an efficient odor removal system in hoggery. Therefore, the bacterial deodorant compounded with <em>C. sinensis</em> has been shown to be an effective method for deodorizing pig farms. This approach will advance the livestock industry toward greener practices and environmental protection, contributing positively to the development of a sustainable agro-ecosystem.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 69-81"},"PeriodicalIF":7.1,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142745353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Plastic waste identification based on multimodal feature selection and cross-modal Swin Transformer 基于多模态特征选择和跨模态 Swin 变换器的塑料垃圾识别技术

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-26 DOI: 10.1016/j.wasman.2024.11.027

Tianchen Ji , Huaiying Fang , Rencheng Zhang , Jianhong Yang , Zhifeng Wang , Xin Wang

{"title":"Plastic waste identification based on multimodal feature selection and cross-modal Swin Transformer","authors":"Tianchen Ji , Huaiying Fang , Rencheng Zhang , Jianhong Yang , Zhifeng Wang , Xin Wang","doi":"10.1016/j.wasman.2024.11.027","DOIUrl":"10.1016/j.wasman.2024.11.027","url":null,"abstract":"<div><div>The classification and recycling of municipal solid waste (MSW) are strategies for resource conservation and pollution prevention, with plastic waste identification being an essential component of waste sorting. Multimodal detection of solid waste has increasingly replaced single-modal methods constrained by limited informational capacity. However, existing hyperspectral feature selection algorithms and multimodal identification methods have yet to leverage cross-modal information exhaustively. Therefore, two RGB-hyperspectral image (RGB-HSI) multimodal instance segmentation datasets were constructed to support research in plastic waste sorting. A feature band selection algorithm based on the Activation Weight function was proposed to automatically select influential hyperspectral bands from multimodal data, thereby reducing the burden of data acquisition, transmission, and inference. Furthermore, the multimodal Selective Feature Network (SFNet) was introduced to balance information across various modalities and stages. Moreover, the Correlation Swin Transformer Block was proposed, specifically crafted to fuse cross-modal mutual information, which can be synergistically employed with SFNet to enhance multimodal recognition capabilities further. Experimental results show that the Activation Weight band selection function can select the most effective feature bands. At the same time, the Correlation SF-Swin Transformer achieved the highest F1-scores of 97.85% and 97.37% in the two plastic waste object detection experiments, respectively. The source code and final models are available at <span><span>https://github.com/Bazenr/Correlation-SFSwin</span><svg><path></path></svg></span>, and the dataset can be accessed at <span><span>https://www.kaggle.com/datasets/bazenr/rgb-hsi-rgb-nir-municipal-solid-waste</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 58-68"},"PeriodicalIF":7.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142721969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Path-dependencies in the transition to sustainable biowaste valorization: Lessons from a socio-technical analysis of Sweden and Greece 向可持续生物废物价值化过渡的路径依赖：从瑞典和希腊的社会技术分析中汲取的经验教训

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-24 DOI: 10.1016/j.wasman.2024.11.030

Eftychia Ntostoglou , Viktoria Martin , Dilip Khatiwada , Frauke Urban

{"title":"Path-dependencies in the transition to sustainable biowaste valorization: Lessons from a socio-technical analysis of Sweden and Greece","authors":"Eftychia Ntostoglou , Viktoria Martin , Dilip Khatiwada , Frauke Urban","doi":"10.1016/j.wasman.2024.11.030","DOIUrl":"10.1016/j.wasman.2024.11.030","url":null,"abstract":"<div><div>Achieving sustainable biowaste management is a key challenge for cities worldwide. In this context, biowaste valorization is an indispensable option for managing unavoidable biowaste and reducing the associated methane emissions. Several innovations that enable biowaste valorization are technologically mature. However, their implementation is still limited in most cities around the world. Therefore, it is essential to better understand the different pathways towards implementing biowaste valorization. This paper presents a case-study of two countries at different phases in their transition to biowaste valorization: Sweden as a case at a mature phase and Greece as a case at a formative phase. We apply the Technological Innovation Systems framework to investigate how innovation systems for biowaste valorization develop and associated path-dependencies. Our findings show that various path-dependence lock-ins can occur at different transition phases. Our empirical insights suggest that a focus on the diffusion of certain mature innovations can support the growth of biowaste valorization systems. However, it can also lead to path-dependence lock-ins that influence the systems’ resilience to shocks. We thus recommend decision-makers to pursue balance between the rapid diffusion of mature innovations for biowaste valorization and parallel support for experimenting with more radical innovations to harness the systems’ resilience to shocks.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"192 ","pages":"Pages 47-57"},"PeriodicalIF":7.1,"publicationDate":"2024-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0

Recycling PCBs for nanoparticles production with potential applications in cosmetics, cement manufacturing, and CO2 capture 回收多氯联苯生产纳米粒子，可用于化妆品、水泥制造和二氧化碳捕获

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2024-11-23 DOI: 10.1016/j.wasman.2024.11.018

Lídia Cunha , Joana Monteiro , Aurora Futuro , Maria João Regufe , José Soeiro , Rui Sousa

{"title":"Recycling PCBs for nanoparticles production with potential applications in cosmetics, cement manufacturing, and CO2 capture","authors":"Lídia Cunha , Joana Monteiro , Aurora Futuro , Maria João Regufe , José Soeiro , Rui Sousa","doi":"10.1016/j.wasman.2024.11.018","DOIUrl":"10.1016/j.wasman.2024.11.018","url":null,"abstract":"<div><div>Electronic waste (e-waste) is a global problem, and many countries have established laws and regulations to promote its proper disposal and recycling. E-waste contains a significant content of printed circuit boards (PCBs), composed of metals and other valuable metals that may become scarce in Earth’s crust – Copper (Cu), nickel (Ni), gold (Au), silver (Ag), palladium (Pd), and others. The main objective of this review is to explore the potential for producing nanoparticles (NPs) from the metals extracted through PCB recycling, with applications in the cosmetics, cement manufacturing, and carbon dioxide (CO<sub>2</sub>) capture industries. For this purpose, the recycling methods for PCBs e-waste, using physical processes (gravity, magnetic, electrostatic separation, and flotation), metallurgical processes (pyrometallurgy and hydrometallurgy), and purification techniques to obtain an enriched metal solution for the subsequent nanoparticle synthesis was performed. The production of NPs is a novel approach to obtain value-added products for industry. Therefore, recent research from pre-treatment of PCBs to NPs production is summarized, aligning with the circular economy principles and sustainable development goals. Towards this end, wasted PCBs can be transformed into valuable materials with innovative and potential applications in cosmetics, cement manufacturing, and carbon dioxide capture, contributing to a more sustainable future.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"191 ","pages":"Pages 308-323"},"PeriodicalIF":7.1,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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}

引用次数: 0