Waste management最新文献_第10页

Enhancing door-to-door waste collection forecasting through ML. 通过机器学习提高上门垃圾收集预测。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2025-01-07 DOI: 10.1016/j.wasman.2024.12.044

Luca Pasa, Giuseppe Angelini, Michele Ballarin, Pierluigi Fedrizzi, Alessandro Sperduti

{"title":"Enhancing door-to-door waste collection forecasting through ML.","authors":"Luca Pasa, Giuseppe Angelini, Michele Ballarin, Pierluigi Fedrizzi, Alessandro Sperduti","doi":"10.1016/j.wasman.2024.12.044","DOIUrl":"https://doi.org/10.1016/j.wasman.2024.12.044","url":null,"abstract":"<p><p>We explore the application of machine learning (ML) techniques to forecast door-to-door waste collection, addressing the challenges in municipal solid waste (MSW) management. ML models offer a promising solution to optimize waste collection operations, especially amid growing urban populations and evolving waste generation rates. Leveraging comprehensive data from a northeastern Italian municipality, including various waste types, our study investigates ML algorithms' efficacy in predicting household waste collection requirements. We examine two key tasks: predicting daily waste exposure likelihood and forecasting fulfilled pickups over monthly and weekly periods. Both tasks are developed at the user level, forecasting user behavior based on features that describe the user. We split the data based on its temporal distribution and evaluated the models by forecasting user behavior in a future period, using the data from earlier periods to train the models. This study addresses a novel and challenging scenario, as, to the best of our knowledge, no prior work has specifically focused on door-to-door waste management using machine learning techniques. Results highlight ML models' potential in enhancing waste collection efficiency, aiding route planning, resource allocation, and environmental sustainability in urban areas. Additionally, our findings underscore the importance of tailoring strategies to waste categories and pickup frequencies for optimal performance.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"194 ","pages":"36-44"},"PeriodicalIF":7.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142955994","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

Soil remediation by co-disposal in sintered brick kilns: Migration characteristics of heavy metals in bricks and the kiln. 烧结砖窑共处置修复土壤：砖和窑中重金属迁移特征。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2025-01-07 DOI: 10.1016/j.wasman.2025.01.006

Haiping Xiao, Zheng Zhou, Xingyue Zhang, Dahai Yan, Jing Lei

{"title":"Soil remediation by co-disposal in sintered brick kilns: Migration characteristics of heavy metals in bricks and the kiln.","authors":"Haiping Xiao, Zheng Zhou, Xingyue Zhang, Dahai Yan, Jing Lei","doi":"10.1016/j.wasman.2025.01.006","DOIUrl":"https://doi.org/10.1016/j.wasman.2025.01.006","url":null,"abstract":"<p><p>Rapid industrialization has led to the widespread accumulation of heavy metal-contaminated soils, posing significant environmental and health risks. Utilizing remediated soil for the production of sintered bricks offers a sustainable and effective solution. However, the migration and immobilization mechanisms of heavy metals during the sintering process, both within the tunnel kiln and the brick matrix, require detailed investigation. This study examined the distribution of heavy metals in the tunnel kiln and analyzed the differences in heavy metal content and leaching behavior between the inner and outer layers of the bricks. Bricks containing 15% remediated soil were prepared, and it was observed that the majority of heavy metals were effectively immobilized, with retention rates ranging from 90.6% to 99.9%. Selenium (Se), however, exhibited significant volatility, with a retention rate of only 64.3%. The outer layer of the brick body contained higher concentrations of As and Pb compared to the inner layer. Conversely, leaching tests showed lower leaching rates of Mn, Ni, Cu, and Zn in the inner layers, while As and Pb exhibited higher leaching rates in the inner layers. These findings underscore the varying migration and transformation behaviors of different heavy metals during sintering, both within the kiln and the brick layers. The study highlights the potential of doped sintered bricks as sustainable building materials, ensuring effective heavy metal stabilization with minimal environmental risk, and providing a promising pathway for the safe reuse of contaminated soils.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"194 ","pages":"55-63"},"PeriodicalIF":7.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142955998","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

Application of the nitrogen-to-argon ratio to understand nitrogen transformation pathways in landfills under in-situ stabilization. 应用氮氩比了解原位稳定条件下垃圾填埋场氮转化途径。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2025-01-06 DOI: 10.1016/j.wasman.2024.12.042

Susan Yi, Nathali Meza, Julia Gebert

{"title":"Application of the nitrogen-to-argon ratio to understand nitrogen transformation pathways in landfills under in-situ stabilization.","authors":"Susan Yi, Nathali Meza, Julia Gebert","doi":"10.1016/j.wasman.2024.12.042","DOIUrl":"https://doi.org/10.1016/j.wasman.2024.12.042","url":null,"abstract":"<p><p>The ratio of nitrogen (N<sub>2</sub>) to argon (Ar) in landfill gas was compared to the atmospheric gas ratio to quantify the balance between N<sub>2</sub> generating (anaerobic ammonium oxidation, denitrification) and N<sub>2</sub> consuming (nitrogen fixation) processes on three landfills undergoing in-situ stabilization. In the aerated landfills, as much as 22% of the extracted N<sub>2</sub> could be explained by net denitrification, with coexisting aerobic and anaerobic domains fostering nitrification-dependent denitrification. Nitrogen fixation was also occasionally observed. Removal of nitrogen via the gas phase exceeded nitrogen removed via the leachate by up to a factor of 33. Contrastingly, the anaerobic landfill under leachate recirculation showed a net reduction of N<sub>2</sub> in relation to Ar, indicating nitrogen fixation as the dominant mechanism, equivalent up to 28% of the nitrogen in the extracted landfill gas. The balance between denitrification and nitrogen fixation in the aerated sites varied seasonally, likely caused by increased evapotranspiration in the summer, allowing greater air intrusion through the cover soil, resulting in higher NO<sub>3</sub><sup>-</sup> and NO<sub>2</sub><sup>-</sup> availability for denitrification and anammox. No such variability was observed for the landfill under liquid recirculation. The nitrogen transforming microbial community comprised of species responsible for nitrification, ammonification, denitrification, and anammox, indicating all processes may coexist. The findings show aeration supports nitrogen removal through the gas phase, but also suggest that nitrogen fixation adds nitrogen to the waste body in anaerobic domains. This could delay reaching environmental compliance criteria for leachate nitrogen, both for in-situ treatment by aeration and by leachate recirculation.</p>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"194 ","pages":"13-23"},"PeriodicalIF":7.1,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142955883","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 碱焙烧-无酸铝盐联合浸出法从电镀污泥冶炼烟尘中高效回收有价金属

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 利用激光闪蒸法将面膜废弃物裂解为端偏乙烯PP蜡，并进一步功能化为相容剂

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 再谈碱预处理与生物可加工木质素整合转化木质纤维素发酵

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 山茶花复合细菌除臭剂对猪粪的原位除臭效果及机理研究

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