Waste Management & Research最新文献

Realization of quasi-steady-state piled smouldering using sequential operation chambers for industrial treatment of biomass wastes. 利用顺序运行室实现准稳态堆垛烟熏，用于生物质废物的工业处理。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-10 DOI: 10.1177/0734242X241290766

Wentao Zhao, Guangxin Yu, Ehsan Elahi, Junmeng Cai, Frank Behrendt, Thomas Schliermann, Fang He

{"title":"Realization of quasi-steady-state piled smouldering using sequential operation chambers for industrial treatment of biomass wastes.","authors":"Wentao Zhao, Guangxin Yu, Ehsan Elahi, Junmeng Cai, Frank Behrendt, Thomas Schliermann, Fang He","doi":"10.1177/0734242X241290766","DOIUrl":"10.1177/0734242X241290766","url":null,"abstract":"Piled smouldering has great potential for treatment and utilization of biomass wastes. However, its unsteady-state nature limits its industrial utilization, as well as treatment of smoke. This article addresses this issue by proposing the sequential operation of numerous smouldering chambers to realize steady- or quasi-steady-state piled smouldering. The superposition characteristics of sequential unsteady-state curves were analysed theoretically, and a code was developed to determine an appropriate number of piled chambers at an allowance oscillation percentage. Smouldering experiments were performed on a single mini chamber (length × width × height: 340 × 140 × 140 mm3) containing piled wood pellets mixed with wood powder. The superposition of sequential burning rate curves was demonstrated using the code based on the mass loss data of experiments. Analysis shows that the perfect-steady state is possible given the superposition value of the burning rate curve is a constant in this proposed system. Experiments show that the molar ratio of CO/CO2 in smoke is almost a constant around 0.5 during densely piled smouldering, showing the great potential for self-sustained burning out the smoke. Based on the experimental results, the calculation results show that the relative oscillation range of burning rate (OSC) decreases from 75% to 3% while increasing the number of chambers from 2 to 7. This work provides a novel technology to enable quasi-steady-state smouldering for industrial utilization.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1023-1033"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142628782","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}

引用次数: 0

Solid waste management in Ugandan developing cities: Material flow analysis and sustainable practices for reducing the global warming potential. 乌干达发展中城市的固体废物管理：物质流分析和减少全球变暖潜能值的可持续做法。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-05 DOI: 10.1177/0734242X241291940

Pietro Castellani, Navarro Ferronato, Jacopo Barbieri, Emmanuel Menya, Marco Carnevale Miino, Vincenzo Torretta

{"title":"Solid waste management in Ugandan developing cities: Material flow analysis and sustainable practices for reducing the global warming potential.","authors":"Pietro Castellani, Navarro Ferronato, Jacopo Barbieri, Emmanuel Menya, Marco Carnevale Miino, Vincenzo Torretta","doi":"10.1177/0734242X241291940","DOIUrl":"10.1177/0734242X241291940","url":null,"abstract":"The introduction of appropriate solid waste management (SWM) strategies can foster the mitigation of waste open dumping and burning in low-income developing cities. In this work, the SWM system in Gulu (Uganda) has been studied, and a material flow analysis, also of informal flows of waste, has been carried out. Moreover, the effectiveness of the SWM system of St. Mary's Lacor Hospital in Gulu was evaluated. Waste has been characterized and a material flow analysis allowed to highlight the difference with the current situation in the remaining part of Gulu. The sustainable practices already implemented in the hospital compound were studied to be replicated in Gulu to mitigate SWM impact in terms of global warming potential. Inadequate financial resources pose a hurdle for Gulu municipality in managing municipal solid waste (MSW) effectively. The SWM system of the hospital demonstrated both financial and managerial competence, paving the way to promote waste recycling actions acting as a hub for fostering sustainable and health-conscious valourization technologies, while discouraging waste open burning and dumping. This study estimated that the total CO2-eq emissions from open dumping and open burning avoided in 2030-2050, if Gulu would appropriately dispose of MSW by 2030, are equal to about 17,000 metric tonnes per year (t year-1). This work suggests appropriate strategies to mitigate waste open burning in low-middle income countries. The results can be helpful for waste management planners and practitioners providing important information for the use of appropriate technologies in low-middle income developing cities.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1099-1111"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142576823","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}

引用次数: 0

Biochar-based fertilizers from co-pyrolysis of algae and hazelnut shell with triple superphosphate: Physicochemical properties and slow release performance. 海藻和榛子壳与三过磷酸钙共同热解产生的生物炭基肥料：理化特性和缓释性能。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-10-09 DOI: 10.1177/0734242X241287738

Nazanin Esmaeili, Maryam Khalili Rad, Mahmood Fazeli Sangani, Nasrin Ghorbanzadeh

{"title":"Biochar-based fertilizers from co-pyrolysis of algae and hazelnut shell with triple superphosphate: Physicochemical properties and slow release performance.","authors":"Nazanin Esmaeili, Maryam Khalili Rad, Mahmood Fazeli Sangani, Nasrin Ghorbanzadeh","doi":"10.1177/0734242X241287738","DOIUrl":"10.1177/0734242X241287738","url":null,"abstract":"Phosphorus (P) is a vital nutrient for plant growth and food production. Excessive amounts of P fertilizers to a greater extent of crop P offtake are inevitably applied due to low utilization efficiency, causing environmental pollution. This study aimed to evaluate biochar-based fertilizers (BBFs) produced by co-pyrolyzing algae (A) and hazelnut shell (H) biomasses with triple superphosphate (TSP) at a ratio of 4:1 (w/w). The potential of the slow-release performance of BBFs was studied during kinetics experiments. The co-pyrolysis of biomasses with TSP yielded BBFs with significantly different properties, including electrical conductivity, pH, elemental ratios, functional groups, specific surface area and pore size characteristics. Phosphorus release from all biochars and BBFs followed the Elovich model, except for TSP and H+TSP. Kinetic studies revealed prolonged P-release times and slower release rates for BBFs compared to conventional TSP. So that, TSP released 100% of the total P, whereas H+TSP and A+TSP biochars released only 3.14% and 5.14% of the total P, respectively, during a 240-hour experiment. The slow-release performance of BBFs suggests their potential as promising alternatives to conventional phosphate fertilizers. BBFs have the potential to enhance P utilization efficiency, increase crop yield and mitigate the environmental impact of P fertilizer runoff.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"994-1001"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142393753","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}

引用次数: 0

The effectiveness of stage-matched interventions in changing waste source separation behaviour: Evidence from a consecutive quasi-experiment. 阶段匹配干预措施在改变垃圾源头分类行为方面的有效性：来自连续准实验的证据。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-10-15 DOI: 10.1177/0734242X241287741

Yan Zhang, Zhen Han, Pengcong Zhang, Jiaxin Wu, Yixuan Wang

{"title":"The effectiveness of stage-matched interventions in changing waste source separation behaviour: Evidence from a consecutive quasi-experiment.","authors":"Yan Zhang, Zhen Han, Pengcong Zhang, Jiaxin Wu, Yixuan Wang","doi":"10.1177/0734242X241287741","DOIUrl":"10.1177/0734242X241287741","url":null,"abstract":"In many developing countries, inefficient waste source separation poses a significant challenge to sustainable waste management systems, hindering progress towards a circular economy. Previous research has shown mixed results regarding the effectiveness of informational interventions and has not thoroughly evaluated regulatory measures. This study innovatively employs a quasi-experimental design, enhanced by successive surveys, to assess the impact of targeted interventions on behavioural changes in waste separation practices. Utilizing the Health Action Process Approach, we introduced three interventions - posters, educational lectures and a supervision policy - over 8 weeks among university students. Our results indicate stepwise improvements in waste separation accuracy: posters modestly increased awareness without significantly altering behaviours; educational lectures led to a 40% increase in the food waste separation rate and supervision achieved over 90% separation purity, but with an increase in 'fly-dumping'. The interventions incurred costs of 36, 60 and 365 RMB per capita annually. This research underlines the importance of customized informational interventions and the costs and challenges of initial regulatory measures in waste management, offering crucial empirical evidence and insights for creating impactful environmental behaviour change interventions.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1002-1012"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142476092","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}

引用次数: 0

Deposit pickers in the Nordic: The role of deposit-refund systems for waste pickers in Stockholm. 北欧的拾荒者：斯德哥尔摩拾荒者的押金退还制度的作用。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-28 DOI: 10.1177/0734242X241297574

Nils Johansson

{"title":"Deposit pickers in the Nordic: The role of deposit-refund systems for waste pickers in Stockholm.","authors":"Nils Johansson","doi":"10.1177/0734242X241297574","DOIUrl":"10.1177/0734242X241297574","url":null,"abstract":"This article examines a specific subtype of informal waste picking: deposit picking. Despite its global prevalence, waste picking has neither been extensively studied in the Nordic countries nor in the context of a deposit-refund system. Through interviews and text analyses of waste pickers in Stockholm, Sweden, similarities and differences between deposit picking and traditional waste picking are uncovered. For example, unlike other waste materials, the income from deposits is stable. The focus on beverage containers and the ability of reverse vending machines to sort the containers, lowers the knowledge threshold to begin the activity. The lightweight nature of beverage containers makes collection mobile, and deposit pickers often carry only a bag. The deposit pickers are mainly older, poor and male. Similar to traditional waste pickers, deposit pickers are central to the formal waste system, but their work is invisible, and foreign deposit pickers, in particular, are stigmatized. The dual invisibility of their labour and contributions, coupled with their independence from formal social systems, highlights the need for internal organization and representation within the formal systems.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1135-1145"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12205161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142751781","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}

引用次数: 0

Raman spectroscopy combined with active hyperspectral sensing for classification of waste plastics containing brominated flame retardants: A sensor fusion approach. 拉曼光谱与主动高光谱传感相结合，对含溴化阻燃剂的废塑料进行分类：传感器融合方法。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-08 DOI: 10.1177/0734242X241287736

Tuomas Sormunen, Ilkka Rytöluoto, Anna Tenhunen-Lunkka, Francisco Senna Vieira

{"title":"Raman spectroscopy combined with active hyperspectral sensing for classification of waste plastics containing brominated flame retardants: A sensor fusion approach.","authors":"Tuomas Sormunen, Ilkka Rytöluoto, Anna Tenhunen-Lunkka, Francisco Senna Vieira","doi":"10.1177/0734242X241287736","DOIUrl":"10.1177/0734242X241287736","url":null,"abstract":"Discrimination of waste plastics according to brominated flame retardant (BFR) concentration is essential to ensure quality and safety in recycling. We present a sensor fusion approach to classify BFR-containing plastic waste by combining Raman and near-infrared (NIR) spectroscopies. We analysed 210 waste plastic samples sourced from waste electronics and electrical equipment stream and 25 laboratory-made plastics. The Raman spectra were acquired in the range 27-2481 cm-1 using a time-gated Raman and the NIR spectra in the range 4000-5260 cm-1 using a novel active hyperspectral sensor. Total elemental bromine concentrations were determined with X-ray fluorescence spectroscopy and used as reference for training extremely randomized trees classifiers for high- and low-bromine plastics with different thresholds of segmentation. The classifier models were built using Raman and NIR spectral data after reducing dimensions with principal component analysis, both separately and by fusing the data. We achieved over 80% balanced classification accuracies using all models, with significant improvements by data fusion.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1013-1022"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12205159/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142605135","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}

引用次数: 0

Optimizing food waste anaerobic digestion in Kuwait: Experimental insights and empirical modelling using artificial neural networks. 优化科威特的厨余厌氧发酵：利用人工神经网络的实验见解和经验建模。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-13 DOI: 10.1177/0734242X241294247

Jean H El Achkar, Suad Al Radhwan, Ahmed M Al-Otaibi, Abdul Md Mazid

{"title":"Optimizing food waste anaerobic digestion in Kuwait: Experimental insights and empirical modelling using artificial neural networks.","authors":"Jean H El Achkar, Suad Al Radhwan, Ahmed M Al-Otaibi, Abdul Md Mazid","doi":"10.1177/0734242X241294247","DOIUrl":"10.1177/0734242X241294247","url":null,"abstract":"This study investigates, for the first time, the anaerobic digestion of food waste in Kuwait to optimize methane production through a combination of artificial neural network (ANN) modelling and continuous reactor experiments. The ANN model, utilizing eight hidden neurons and a 70-20-10 split for training, validation and testing sets, yielded mean squared error values of 0.0056, 0.0048 and 0.0059 and coefficient of determination (R²) values of 0.9942, 0.9986 and 0.9892, respectively. Methane percentages in biogas were predicted using six parameters: biomass type, pH, organic loading rate (OLR), hydraulic retention time (HRT), temperature and reactor volume. To validate the ANN results, continuous reactor experiments were conducted under an OLR of 3 kg VS m⁻³ d⁻¹ and HRT of 20 days at varying temperatures (35°C, 40°C, 45°C, 50°C and 55°C). The experiments demonstrated optimal methane production in the mesophilic range, with ANN predictions closely aligning with experimental data up to 45°C. However, deviations were observed at higher temperatures, particularly under thermophilic conditions beyond 50°C. This study provides novel insights into waste-to-energy initiatives in Kuwait and highlights the potential of integrating computational models with empirical data to enhance biogas production processes.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1123-1134"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142628821","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}

引用次数: 0

Energizing the future: Unleashing the potential of innovative waste-to-energy technologies for energy development and sustainability within Zimbabwe's tourism sector. 为未来注入活力：释放废物变能源创新技术的潜力，促进津巴布韦旅游业的能源发展和可持续性。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-10-29 DOI: 10.1177/0734242X241291939

Option Takunda Chiwaridzo

{"title":"Energizing the future: Unleashing the potential of innovative waste-to-energy technologies for energy development and sustainability within Zimbabwe's tourism sector.","authors":"Option Takunda Chiwaridzo","doi":"10.1177/0734242X241291939","DOIUrl":"10.1177/0734242X241291939","url":null,"abstract":"Zimbabwe's tourism industry, renowned for its natural wonders and cultural heritage, faces a looming energy crisis rooted in the detrimental over-reliance on fossil fuels and the underutilization of substantial waste resources that lie dormant. The article investigates multifaceted relationship between six independent variables: landfill gas recovery and anaerobic digestion, pyrolysis and gasification, incineration, biogas production, biodiesel production, ethanol production and syngas fermentation and one dependent variable: energy development and sustainability. In this study, a quantitative methodology was adopted, involving the gathering of data from 519 stakeholders in the tourism supply chain through a simple random sampling technique, with the sample size determined using the Krejcie and Morgan table. The distribution of questionnaires was facilitated through Google Forms, and the data analysis was conducted using Smart PLS. Statistical findings indicate direct significant relationship between variables, and t-statistic values all hypotheses were all greater than the threshold of 1.96, ranging from a minimum of 2.911 to a maximum of 9.431. These findings underscore the robustness of the relationships between the waste-to-energy technologies and energy development and sustainability within Zimbabwe's tourism sector. This empirical evidence highlights the substantial potential for these innovative technologies to play a pivotal role in mitigating the energy crisis and fostering sustainable energy development.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1070-1085"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523226","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}

引用次数: 0

Influence of stockpile design on carbonation of waste concrete: Implications for carbon management in China. 堆放设计对废弃混凝土碳化的影响：对中国碳管理的启示。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-04 DOI: 10.1177/0734242X241290773

Panxiu Wang, Dawei Wang, Asim A Ditta, Xiao Qi

{"title":"Influence of stockpile design on carbonation of waste concrete: Implications for carbon management in China.","authors":"Panxiu Wang, Dawei Wang, Asim A Ditta, Xiao Qi","doi":"10.1177/0734242X241290773","DOIUrl":"10.1177/0734242X241290773","url":null,"abstract":"Enhancing the sequestration capacity of waste concrete is crucial for achieving carbon neutrality within the construction industry. Although existing studies primarily focus on theoretical analysis of concrete carbon sequestration, limited attention has been paid to explore the potential of waste concrete sequestration during stockpiling phase under varying environmental conditions. To fill this knowledge gap, we developed a CO2 uptake calculation model tailored for the stockpiling phase of waste concrete. This model investigates the impact of crush size, stacking method and environmental conditions on the total carbon sequestration capacity and efficiency, identifying the most advantageous approach. Our findings reveal the following: (1) Increasing the crush size of waste concrete enhances its carbon sequestration capacity, albeit extends the sequestration duration. A crush size of 5-20 mm is deemed optimal for achieving the desired sequestration efficiency. (2) The optimal stacking method involves smaller piles with reduced radii and angles. (3) High temperatures and humidity levels accelerate the sequestration rate. Practical measures such as watering and covering can be employed to enhance carbon sequestration. (4) In 2021, China's waste concrete exhibited a declining sequestration potential from the southeast to the northwest and northeast regions. The maximum sequestration potential has the capacity to neutralize up to 4% of the carbon emissions generated by the construction industry in that year. This research provides a foundation for accurate assessment and the development of effective carbon sequestration strategies for waste concrete.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1060-1069"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142569741","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}

引用次数: 0

Developing WasteSAM: A novel approach for accurate construction waste image segmentation to facilitate efficient recycling. 开发 WasteSAM：准确分割建筑垃圾图像以促进有效回收的新方法。

IF 3.7 4区环境科学与生态学

Waste Management & Research Pub Date : 2025-07-01 Epub Date: 2024-11-18 DOI: 10.1177/0734242X241290743

Seokjae Heo, Seunguk Na

{"title":"Developing WasteSAM: A novel approach for accurate construction waste image segmentation to facilitate efficient recycling.","authors":"Seokjae Heo, Seunguk Na","doi":"10.1177/0734242X241290743","DOIUrl":"10.1177/0734242X241290743","url":null,"abstract":"The escalating volume of construction activities and resultant waste generation underscores the imperative for developing sophisticated segmentation models to facilitate efficient sorting and recycling processes. This study introduces WasteSAM, an enhanced iteration of the segment anything model (SAM), specifically tailored to address the intricate complexities inherent in construction waste imagery. Drawing upon a comprehensive dataset comprising over 15,000 masks representing five distinct categories of construction materials, WasteSAM exhibits notably superior segmentation capabilities. Quantitative analysis demonstrates significant performance improvements, with WasteSAM outperforming the original SAM model by an average of 23.9% in dice similarity coefficient and 30.0% in normalized surface distance metrics. The integration of stereo-image techniques in refining the training dataset has facilitated WasteSAM in more accurately discerning the three-dimensional structure of waste materials, thereby augmenting the precision of waste classification. Noteworthy is the model's adeptness in handling intricate textures and patterns across diverse imaging modalities, including varying lighting conditions and complex object interactions. While showing promising results, this study also highlights the need for high-quality, diverse datasets that reflect real-world construction site complexities, rather than merely larger datasets.","PeriodicalId":23671,"journal":{"name":"Waste Management & Research","volume":" ","pages":"1048-1059"},"PeriodicalIF":3.7,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648810","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}

引用次数: 0