Waste management最新文献_第8页

Effects of temperature and material thickness on the diffusion properties of bituminous geomembranes (BGMs) in waste containment systems 温度和材料厚度对沥青土工膜在垃圾围护系统中扩散性能的影响

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-26 DOI: 10.1016/j.wasman.2025.115298

A.M. Arif , F.B. Abdelaal

{"title":"Effects of temperature and material thickness on the diffusion properties of bituminous geomembranes (BGMs) in waste containment systems","authors":"A.M. Arif , F.B. Abdelaal","doi":"10.1016/j.wasman.2025.115298","DOIUrl":"10.1016/j.wasman.2025.115298","url":null,"abstract":"<div><div>The diffusion behaviour of four elastomeric bituminous geomembranes (BGMs) from two manufacturers and with different thicknesses is investigated to assess the effects of temperature, thickness, and formulation on their performance as diffusive barriers for solid waste containment applications. All BGMs examined had a 0.012 mm anti-root polyester (PET) film at their bottom surfaces. Diffusion tests are conducted on the as-received BGMs and the BGM components (the isolated PET film, and a modified BGM sample obtained by removing the PET film from the as-received material) at 24 °C, 35 °C and 50 °C. The diffusion parameters inferred at the three test temperatures were used to generate theoretical concentration profiles, which closely matched the experimental data, thereby validating the use of a two-layer modelling approach that treats BGMs as a multilayer composite material. Results demonstrated a clear increase in the diffusion of volatile organic compounds (VOCs) with temperature through the as-received BGM and its different components, with the PET film providing the main resistance to VOC migration. Additionally, it is shown that thicker BGMs exhibited longer times to equilibrium, consistent with a reduced rate of permeation resulting from extended diffusion pathways. However, BGMs from the same manufacturer exhibited comparable diffusion parameters regardless of thickness. These findings highlight the need for material-specific composition testing in diffusive performance assessments. They also show the key role of temperature and the PET film in controlling the VOC migration through BGMs in containment barrier systems.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115298"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145840772","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

Microplastics in solid waste streams: Research needs and gaps in research methodology 固体废物流中的微塑料：研究需求和研究方法的差距

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-25 DOI: 10.1016/j.wasman.2025.115297

Victoria C. Hoffmann, Olya S. Keen

{"title":"Microplastics in solid waste streams: Research needs and gaps in research methodology","authors":"Victoria C. Hoffmann, Olya S. Keen","doi":"10.1016/j.wasman.2025.115297","DOIUrl":"10.1016/j.wasman.2025.115297","url":null,"abstract":"<div><div>Over the last decade, the presence of microplastics in municipal waste streams has become increasingly recognized as a significant environmental issue. While most studies have focused on liquid waste, specifically wastewater treatment plants, as a primary source of microplastic contamination, emerging research has begun to highlight solid waste systems. This review evaluates forty-six peer-reviewed studies reporting microplastic concentrations in landfill leachate, digestate from anaerobic digesters, composting facilities, and recycling operations. The concentrations of microplastics in these systems remain sparsely explored, and among available studies, methodological inconsistencies limit reproducibility and synthesis. The inconsistencies identified in this review included omitting essential sample processing steps, minimal reporting of detection limits for analytical instruments, and limited documentation of tactics for reducing inevitable laboratory contamination. These gaps highlight the importance of developing standardized methodologies and transparent reporting practices that account for sampling design, analytical sensitivities, and contamination control. This review synthesizes recent methodological trends, identifies key information to report, and proposes foundational elements for a more unified approach to microplastic analysis in solid waste streams.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115297"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145840819","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

Dual role of HTC products from olive tree prunings in soil: Agricultural amendment or biopesticide depending on phytotoxicity 橄榄树修剪后的HTC产品在土壤中的双重作用：根据植物毒性作为农业改良剂或生物农药

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-19 DOI: 10.1016/j.wasman.2025.115280

J.M. Díaz-Rasero , T. Sosa , B. Ledesma , M. Grande , S. Román

{"title":"Dual role of HTC products from olive tree prunings in soil: Agricultural amendment or biopesticide depending on phytotoxicity","authors":"J.M. Díaz-Rasero , T. Sosa , B. Ledesma , M. Grande , S. Román","doi":"10.1016/j.wasman.2025.115280","DOIUrl":"10.1016/j.wasman.2025.115280","url":null,"abstract":"<div><div>This study investigates the impact of hydrothermal carbonization (HTC) products (both hydrochars, (HC), and process water, (PW) derived from olive tree pruning, on the development of lettuce plants (<em>Lactuca sativa</em>). HTC was performed under varying conditions (temperature 200–220 °C and biomass to water load, 1/5 and 1/12 wt./wt.) and both HC and PW characterized by suitable physico-chemical analyses. It was found that not only their processing conditions but also the amount at which these HTC products were added affected their performance when added to the seeds or plants. In the case of HCs, germination and phytotoxicity tests on lettuce seeds promoted root growth at low concentrations (0.5 %) and inhibited germination and seedling development at higher concentrations (≥2%). The effect of PWs was linked by the biomass load used in HTC: lower ratios showed phytotoxicity, while more diluted options were not detrimental. These findings underscore the dual potential of HTC products as fertilizers or herbicides, contingent on processing and application parameters.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115280"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145797361","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

Contaminant migration in vadose zone beneath unregulated landfills with damaged geomembranes 含土工膜破坏的无管制垃圾填埋场渗流区污染物迁移。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-02 DOI: 10.1016/j.wasman.2025.115269

Yu-Zhang Bi , Xin-Po Sun , Qi Zou , Zhe-Yuan Jiang , Xian-Lei Fu

{"title":"Contaminant migration in vadose zone beneath unregulated landfills with damaged geomembranes","authors":"Yu-Zhang Bi , Xin-Po Sun , Qi Zou , Zhe-Yuan Jiang , Xian-Lei Fu","doi":"10.1016/j.wasman.2025.115269","DOIUrl":"10.1016/j.wasman.2025.115269","url":null,"abstract":"<div><div>A one-dimensional analytical model was developed to simulate the migration of organic contaminants from an unregulated landfill through a damaged geomembrane into the underlying unsaturated soil. The model integrates both geomembrane defects (e.g., wrinkles, holes) and unsaturated soil properties, and an analytical solution for contaminant concentration (as a function of time and depth) was derived using boundary transformation, the shift theorem, and Laplace transform/inverse transform. Parametric analysis of five key factors showed: (1) Increases in geomembrane wrinkle size, hole number, and soil saturated water content significantly accelerated contaminant transport, deepened migration depth, and elevated risks to subsurface ecosystems and groundwater; (2) A higher soil unsaturated exponent markedly delayed migration and inhibited vertical penetration. Notably, unregulated landfills in high-saturation, low-unsaturated-exponent regions (e.g., coastal areas) face heightened contamination risks. This model provides a practical tool for predicting contaminant behavior and supporting environmental risk assessments, directly enhancing the management of containment systems in unregulated landfills.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115269"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145662279","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

Fast pyrolysis of waste textiles: Product distribution, formation of hazardous by-products, and resource recovery pathways 废纺织品的快速热解：产品分布、有害副产物的形成和资源回收途径

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-11 DOI: 10.1016/j.wasman.2025.115293

Qindong Chen , Xiyao Zhao , Ning Wang , Huanan Wu , Qiyong Xu

{"title":"Fast pyrolysis of waste textiles: Product distribution, formation of hazardous by-products, and resource recovery pathways","authors":"Qindong Chen , Xiyao Zhao , Ning Wang , Huanan Wu , Qiyong Xu","doi":"10.1016/j.wasman.2025.115293","DOIUrl":"10.1016/j.wasman.2025.115293","url":null,"abstract":"<div><div>Textile consumption has been continuously increasing, posing significant challenges for waste management and disposal. Pyrolysis offers significant potential for recovering resources from non-degradable textiles (e.g., polyester). However, comprehensive studies on product distribution and the release of hazardous components across diverse textile types remain limited, which restricts the development of high-value resource recovery strategies and leads to potential environmental and health risks. This study systematically investigated the fast pyrolysis (550 °C) characteristics of five pure textiles—cotton (C), wool (W), nylon (N), polyester (T), rayon (R)—and one mixed textile (MT). The results revealed distinct product profiles for different textile types. Cotton-derived bio-oil exhibited high content (83.61 %) of light hydrocarbons (<C10), making it suitable for use as liquid fuel after simple acid removal. Wool pyrolysis generated complex bio-oil requiring secondary cracking. Synthetic fabrics (N, T, R) produced bio-oils with substantial corrosive carboxylic acids (e.g., benzoic acid), necessitating esterification pretreatment for fuel use. MT pyrolysis yielded nitrogen-rich bio-oil (74.77 % N-compounds) containing 37.35 % caprolactam, highlighting its value as a chemical feedstock but requiring carbon black separation from the particulate matter (PM). PM analysis identified viscosity-driven formation in cotton and tar/soot dominance in synthetics. This study provides critical insights into tailoring pyrolysis protocols to specific textile wastes, thereby advancing sustainable resource recovery while mitigating corrosion and pollution risks associated with hazardous by-products.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115293"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145737743","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

Geoelectrical imaging and cluster analysis for leachate mapping in a municipal solid waste landfill: A case study in Brazil 地电成像和聚类分析在城市固体垃圾填埋场的渗滤液测绘：在巴西的一个案例研究

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-12 DOI: 10.1016/j.wasman.2025.115289

Mariana Barbosa Juarez , Heraldo Luiz Giacheti , Ana Paula do Nascimento , Marina Fernandes Sanches Barros , Vagner Roberto Elis , Giulliana Mondelli

{"title":"Geoelectrical imaging and cluster analysis for leachate mapping in a municipal solid waste landfill: A case study in Brazil","authors":"Mariana Barbosa Juarez , Heraldo Luiz Giacheti , Ana Paula do Nascimento , Marina Fernandes Sanches Barros , Vagner Roberto Elis , Giulliana Mondelli","doi":"10.1016/j.wasman.2025.115289","DOIUrl":"10.1016/j.wasman.2025.115289","url":null,"abstract":"<div><div>Landfill stability and environmental protection are critical issues in municipal solid waste (MSW) management, especially in tropical countries, where warm and humid conditions can accelerate leachate and gas production. This paper investigated a landfill in Brazil that operated for 24 years (1993–2016), with over 30 % of the MSW consisting of organic matter. Electrical resistivity tomography (ERT) and time-domain induced polarization (IP) surveys were performed along two survey lines for mapping leachate distribution. The results were analyzed using unsupervised machine learning, visualization tools, and descriptive statistics in the R programming language. Standard penetration tests (SPT) were conducted to validate cluster analysis. A comparison of ERT and IP profiles obtained 20 years apart suggested significant leachate presence and varying degradation rates within the waste body, even years after waste disposal activities had ceased. Geoelectrical data were grouped into seven clusters, which were interpreted based on material type (soil and MSW), degree of saturation (partially and fully saturated waste), and organic matter content (from dry to biogeochemically active zones). The SPT tests confirmed complex fluid distribution by revealing leachate ejection and gas emissions at specific regions of the landfill showing low resistivity (below 10 Ωm) and moderate to high chargeability (from 5 to 60 mV/V) and normalized chargeability (from 1 to 7 mS/m). The findings demonstrated the effectiveness of geophysical imaging techniques for site monitoring and highlighted the potential for energy recovery from old MSW.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115289"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145737742","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

Development of an optimization genetic algorithm method for estimating municipal solid waste composition 城市生活垃圾组成估算的优化遗传算法研究。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-24 DOI: 10.1016/j.wasman.2025.115310

Mohsen Banifateme , Peyman Zaroorian , Ali Behbahaninia , Gloria Pignatta

{"title":"Development of an optimization genetic algorithm method for estimating municipal solid waste composition","authors":"Mohsen Banifateme , Peyman Zaroorian , Ali Behbahaninia , Gloria Pignatta","doi":"10.1016/j.wasman.2025.115310","DOIUrl":"10.1016/j.wasman.2025.115310","url":null,"abstract":"<div><div>The accurate estimation of municipal solid waste composition is crucial for effective waste management and resource recovery. Conventional approaches rely on direct sampling, which is both time-consuming and costly. This study presents an accurate and stable Genetic algorithm-based inverse method for estimating municipal solid waste composition without sampling. The method estimates municipal solid waste composition from measurable parameters, including flue gas, working fluid, ash, and leachate, using a genetic algorithm for accurate and stable estimation without physical sampling. The method’s accuracy and stability are validated through numerical simulation experiments involving five distinct municipal solid waste compositions. Data from direct problem simulations, perturbed by random errors, serve as inputs for the genetic algorithm-based inverse solution. Results indicate that the inverse solution is stable. Results indicate that the inverse solution is stable and accurately reproduces the average composition of the five municipal solid waste samples used in the direct method. The results reveal that the estimated composition of municipal solid waste closely matches actual values, demonstrating the feasibility of this genetic algorithm-based approach. The modified methodology is employed at the Aradkooh waste-to-energy power plant in Tehran, Iran. The findings from the Aradkooh power station indicate that the carbon, oxygen, hydrogen, sulfur, moisture, and ash content of municipal solid waste are 27.14, 33.29, 3.16, 0.3, 15.41, and 20.21 percent, respectively. The novelty of this study lies in stabilizing the inverse problem by increasing the number of equations. As a result, the solution achieves higher accuracy and lower estimation errors compared to previous studies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115310"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145834825","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

Investigating safety aspects of using insect farming to reduce pig and chicken wastes at semi-commercial and lab-scale 在半商业化和实验室规模上调查利用昆虫养殖减少猪和鸡废物的安全问题。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-06 DOI: 10.1016/j.wasman.2025.115278

L.S. McDowall , A. Collado , R. Clarkson , G. Reiss , K. McDermott

{"title":"Investigating safety aspects of using insect farming to reduce pig and chicken wastes at semi-commercial and lab-scale","authors":"L.S. McDowall , A. Collado , R. Clarkson , G. Reiss , K. McDermott","doi":"10.1016/j.wasman.2025.115278","DOIUrl":"10.1016/j.wasman.2025.115278","url":null,"abstract":"<div><div>Increasing global demand for food is driving the need to reduce wastes produced by agriculture to minimise environmental impacts. Black Soldier Fly, <em>Hermetia illucens</em>, can reduce livestock wastes, but research into the safety and scalability of the system is required. Insect bioconversion concerns include potential bioaccumulation of pathogens, antimicrobial resistance genes and heavy metals in larvae and substrates. Here, a semi-commercial-sized insect rearing facility was used to rear larvae on pig slurry, alongside a lab-based experiment using chicken manure. Larval microbiome composition was impacted by substrate, with increased Clostridia in larvae reared on slurry and manure. Pathogens largely decreased in the larvae from starting levels. Both slurry and manure substrates showed time-related changes regardless of insect presence or absence except for <em>E. coli</em> in chicken manure which was reduced in substrates with larvae added (−2.840 LFC vs −1.168 LFC; p<0.05), suggesting that time-associated alterations in the substrate could be more significant than larval presence. Antimicrobial resistance gene changes were dependent on the substrate and gene, with increases found for tetM in chicken manure after larval bioconversion (9.000 vs 10.370 LFC; p<0.001), and for sul2 in larvae reared on chicken manure (3.509 vs −0.985 LFC; p=0.001). In pig slurry-reared larvae, tetM decreased (−1.578 LFC; p<0.001) but there was no difference in sul2. Heavy metal contents generally met permissible standards for animal feed and organic fertilizers. However, there was some non-significant evidence for bioaccumulation of cadmium in slurry-reared larvae 0.18 to 0.70 mg/kg) compared to starter larvae (0.25mg/kg) requiring further study.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115278"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145702198","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

Comprehensive assessment and policy implications of pesticide packaging waste management in China 中国农药包装废弃物管理的综合评价与政策启示

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-06 DOI: 10.1016/j.wasman.2025.115281

Wenjie Shangguan , Can Wang , Qiliang Huang , Zongjie Ren , Hongyi Liu , Chunli Xu , Ge Chen , Dukang Ma , Yongwang Guo , Lidong Cao

{"title":"Comprehensive assessment and policy implications of pesticide packaging waste management in China","authors":"Wenjie Shangguan , Can Wang , Qiliang Huang , Zongjie Ren , Hongyi Liu , Chunli Xu , Ge Chen , Dukang Ma , Yongwang Guo , Lidong Cao","doi":"10.1016/j.wasman.2025.115281","DOIUrl":"10.1016/j.wasman.2025.115281","url":null,"abstract":"<div><div>The improper disposal of pesticide packaging wastes (PPWs) poses serious ecological risks. As one of the world’s largest pesticide users, China established its first national regulatory framework for PPWs management with the promulgation in 2020. Against this background, this study utilized large-scale data from pesticide registration, packaging production, and field collection to systematically evaluate the generation, recycling, and disposal of PPWs across China. Experimental analysis verified that triple rinsing effectively removes residues from typical pesticide formulations, allowing properly cleaned containers to be exempted from hazardous waste control. Building on these results, the study proposes policy pathways to improve PPWs management, including standardized rinsing protocols, extended producer responsibility-based collection incentives, and the integration of QR code traceability to guide and monitor container returns. The findings provide quantitative evidence and actionable recommendations to strengthen national recycling systems and offer a reference for developing countries facing similar challenges.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115281"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145702145","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 segmentation and annotation of construction and demolition waste: spatially aware adapters in large vision foundation models 建筑与拆迁垃圾的高效分割与标注：大视觉基础模型中的空间感知适配器

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-01-30 Epub Date: 2025-12-11 DOI: 10.1016/j.wasman.2025.115276

Birat Gautam , Saeed Reza Mohandes , Mehrdad Arashpour

{"title":"Efficient segmentation and annotation of construction and demolition waste: spatially aware adapters in large vision foundation models","authors":"Birat Gautam , Saeed Reza Mohandes , Mehrdad Arashpour","doi":"10.1016/j.wasman.2025.115276","DOIUrl":"10.1016/j.wasman.2025.115276","url":null,"abstract":"<div><div>Effective valorization of construction and demolition waste (CDW) is vital for sustainable development, yet current sorting methods remain labour-intensive and inefficient. Despite progress in computer vision, large vision foundation models (LVFMs) exhibit limitations in class-specific segmentation for dynamic waste streams, while their fine-tuning demands significant computational resources. Moreover, efficient annotation of diverse waste classes remains underdeveloped, necessitating a heavy reliance on resource-intensive manual annotation for all model development. To tackle this problem, this study proposes an innovative solution by enhancing LVFMs with spatially aware adapter architectures to enable precise class-specific segmentation and introducing a semi-automated annotation pipeline leveraging few-shot learning. Experiments on an extended dataset, including underrepresented classes like rubber and lights, reveal that our approach achieves an average Intersection over Union (IoU) of 0.744 in fully supervised settings, surpassing baseline adapters by 4.5%. In few-shot scenarios, it attains an IoU of 0.770 for the unseen ‘lights’ class using only 20 training images. The annotation pipeline produces high-quality masks with an average IoU of 0.883, which is comparable to manual annotation performance but substantially less time-consuming. This study contributes to sustainable CDW valorization by introducing a scalable, resource-efficient framework that enhances class-specific segmentation and streamlines annotation, achieving high accuracy in both supervised and few-shot settings.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"211 ","pages":"Article 115276"},"PeriodicalIF":7.1,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145737667","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