Waste management最新文献

{"title":"Effect of decomposition, stress, and water content on thermal properties of municipal solid waste","authors":"By Kuo Tian ,&nbsp;Craig H. Benson","doi":"10.1016/j.wasman.2025.115024","DOIUrl":"10.1016/j.wasman.2025.115024","url":null,"abstract":"<div><div>Recent studies of elevated temperature landfills (ETLFs) demonstrate the importance of managing heat and temperature in municipal solid waste (MSW) landfills. Predicting heat transfer within the MSW and across landfill boundaries is necessary when developing and evaluating thermal management strategies. This study evaluated how the thermal conductivity and specific heat of synthetic MSW vary with composition, water content, dry unit weight, and decomposition. Methods to estimate thermal conductivity and specific heat based on MSW composition were also evaluated. Synthetic waste was created to mimic the average MSW composition reported in the United States Environmental Protection Agency’s 2015 solid waste database. Degraded waste was created by anaerobic decomposition of the fresh waste. Thermal properties of fresh and decomposed synthetic MSW were measured at water contents of 6 to 60 % (by dry mass) and confining stresses ranging from 2 to 400 kPa. Thermal conductivity of the waste increased with an increase in water content and with higher confining stress, the latter contributing to higher dry density. Specific heat capacity of the waste was larger at higher water content due to the higher specific heat capacity of the water phase. Comparisons were made between measured thermal conductivities and thermal conductivities predicted using serial, parallel, and geometric mean volume-weighted models. Similar comparisons were made between measured specific heat capacities and specific heat capacities predicted with a mass-weighted model. Thermal conductivity was under-predicted by the serial and geometric-mean thermal conductivity models, and over-predicted by the parallel model. A new mixing model over-predicted thermal conductivity modestly in the low range, and was comparable in the high range. The mass-weighted model predicted specific heat capacity accurately.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115024"},"PeriodicalIF":7.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680810","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}

{"title":"Navigating towards environmental sustainability assessments of offshore wind farms at the end-of-life","authors":"Célestin Demuytere ,&nbsp;Gwenny Thomassen ,&nbsp;Jo Dewulf","doi":"10.1016/j.wasman.2025.115016","DOIUrl":"10.1016/j.wasman.2025.115016","url":null,"abstract":"<div><div>Offshore wind is an essential part of the future energy mix, making an accurate environmental sustainability assessment vital. However, only limited information is available of a crucial part of offshore wind’s lifecycle: its upcoming end-of-life phase. This review examines environmental sustainability assessment studies of bottom-fixed offshore wind farms, particularly focusing on this end-of-life phase. From an initial pool of 328 publications covering the environmental sustainability of offshore wind farms, only 17 included this end-of-life phase in a sufficient way to allow for in-depth analysis, underscoring a notable gap in the literature. Resulting from this in-depth analysis, a significant gap in temporal detailing and access to primary data was found. Moreover, few studies were found truly transparent and repeatable, with many lacking clear demarcations of their lifecycle stages and a pressing reliance on non-representative sources or process data. While all studies encompass some carbon footprint analogue, broader environmental impacts are less consistently addressed. Detailed technical and decommissioning descriptions remain scarce, leading to assumptions based on limited primary sources. This review underscores the need for assessments that incorporate detailed temporal scopes, end-of-life and decommissioning processes as well as learning effects to account for technological and material advancements. The study highlights the importance of integrating circular economy principles and metrics in providing a comprehensive sustainability analysis and calls for greater transparency and stakeholder engagement to effectively address the complexities and evolving policy frameworks within the offshore wind farm lifecycle.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115016"},"PeriodicalIF":7.1,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680811","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}

{"title":"Marine litter on the Turkish Black Sea shoreline: Abundance, composition, and sources","authors":"Yahya Terzi ,&nbsp;Sedat Gündoğdu ,&nbsp;İlhan Yandi ,&nbsp;İshak Altinpinar ,&nbsp;Rafet Çağrı Öztürk ,&nbsp;Kenan Gedik","doi":"10.1016/j.wasman.2025.115027","DOIUrl":"10.1016/j.wasman.2025.115027","url":null,"abstract":"<div><div>Marine litter (ML) is a growing environmental concern worldwide, particularly in semi-enclosed basins such as the Black Sea, where limited water exchange and high anthropogenic pressure exacerbate pollution risks. This study presents the first large-scale, standardized assessment of marine litter along the Turkish Black Sea coastline, based on surveys conducted at 37 stations spanning diverse coastal settings. A total of 29,610 litter items were recorded, with an average density of 0.80 ± 0.07 items/m², and plastics accounted for 88.2 % of all collected items. The most frequently encountered items were single-use plastics, including cigarette butts, food wrappers, and bottle caps. According to the Clean Coast Index (CCI), the majority of beaches ranged from “moderate” to “very dirty,” with the highest pollution levels observed in the eastern part of the coastline. The Plastic Abundance Index (PAI) further classified beaches as having “moderate” to “very high” plastic pollution. Additionally, the Hazardous Item Index (HII) revealed considerable spatial variation, with some sites showing high concentrations of potentially dangerous litter such as syringes, broken glass, and sharp metal objects. While some spatial variability was noted among stations, statistical analyses indicated no significant differences in overall litter density or composition across the six defined basins. These findings highlight the pervasive and hazardous nature of plastic pollution in the region and emphasize the need for basin-wide monitoring programs, harmonized methodologies, and integrated waste management strategies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115027"},"PeriodicalIF":7.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671336","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}

{"title":"National evaluations of pharmaceutical and personal care products in Chinese landfill leachate: non-negligible socio-economic and rainfall status","authors":"Yue Sun ,&nbsp;Yu-Xin Wang ,&nbsp;Qing-Yu Liu ,&nbsp;Si Li ,&nbsp;Qian Sui ,&nbsp;Xiao-Song He ,&nbsp;Zhu-Wu Jiang","doi":"10.1016/j.wasman.2025.115031","DOIUrl":"10.1016/j.wasman.2025.115031","url":null,"abstract":"<div><div>Pharmaceuticals and personal care products (PPCPs) have received widespread attention owing to their negative effects on the health of ecosystems. While numerous studies monitored the usage of PPCPs, and ignored the systematical investigation of the discarded PPCPs. Here, we collected leachate from 73 landfills across China and detected 52 target PPCPs. A total of 42 PPCPs were detected in 73 landfills in China with a concentration distribution of 10⁻³–10³ μg/L, of which 93 % of the PPCPs had mean concentrations higher than the safe concentrations for antimicrobial resistance selection. The mean concentrations of the top three PPCPs were caffeine (CF), lincomycin (LIN), and acetaminophen (ACET). Gross domestic product, population density, and precipitation were the most dominant factors affecting CF, LIN, and ACET in leachate, whose concentrations remarkably decreased with landfill age. In contrast, the concentrations of hydrophobic PPCPs such as ketoprofen, carbamazepine, diclofenac, sulfadimidine, and erythromycin, were significantly higher in old leachate. Precipitation, hydrophilicity, and pH were the most important factors affecting the occurrence of the hydrophobic PPCPs in leachate. High concentrations of PPCPs in landfill leachate were also detected in economically or densely populated countries worldwide. For the first time, it was found that the concentration of hydrophobic PPCPs increased in old leachate, in contrast to the traditional understanding of decreasing the concentration of PPCPs owing to the biodegradation during landfill.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115031"},"PeriodicalIF":7.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144680809","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}

{"title":"Microplastic contamination in agricultural soils from mulch films and organic amendments: Transformation mechanism, soil-Biota toxicity, and future perspectives","authors":"Bisma Sattar ,&nbsp;Guijian Liu ,&nbsp;Balal Yousaf ,&nbsp;Muhammad Arif ,&nbsp;Muhammad Zeeshan Gulzar ,&nbsp;Muhammad Irtaza Sajjad Haider ,&nbsp;Rabia Safeer ,&nbsp;Samra Ijaz ,&nbsp;Muhammad Awais Haider ,&nbsp;Kiran Aziz","doi":"10.1016/j.wasman.2025.115032","DOIUrl":"10.1016/j.wasman.2025.115032","url":null,"abstract":"<div><div>Microplastic contamination has emerged as one of the most pressing environmental challenges of our time. While extensive research has been conducted on microplastics in aquatic ecosystems, there remains a significant knowledge gap regarding their presence and impact in terrestrial environments, particularly in agricultural soils, despite microplastic contamination on land being 4 to 23 times higher than in aquatic systems. These soils are increasingly polluted with microplastics from various sources, including plastic mulch films, organic amendments, irrigation, and atmospheric deposition. Among these, the extensive use of plastic mulch film is the primary contributor to microplastics pollution, with China accounting for the highest regional consumption. The degradation rate of microplastics in soil varies significantly, ranging from several months to years depending upon the type of microplastic and environmental conditions. Microplastic accumulation disrupts soil properties, such as soil structure, bulk density, water holding capacity, and nutrient availability. Moreover, soil organisms that ingest these microplastics face severe health issues, often leading to mortality, while these particles enter the food chain posing potential risks to human health. The general objective of this review is to provide a comprehensive understanding of microplastics contamination in agricultural soils by exploring their sources, available techniques for their identification, and mechanisms of their physical, chemical, and biological transformation. It also examines the harmful effects on soil properties, microbial communities, and crop growth. Finally, the review highlights the key strategic directions for future research aimed at bridging the existing knowledge gaps and advancing our understanding of microplastic contamination in agricultural soils.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115032"},"PeriodicalIF":7.1,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671337","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}

{"title":"Slow pyrolysis of mixed textile waste: towards sustainable recycled coal and added value chemicals","authors":"Benedetta Ciuffi ,&nbsp;Andrea Salimbeni ,&nbsp;Erika De Vita ,&nbsp;Niccolò Pezzati ,&nbsp;Andrea M. Rizzo ,&nbsp;David Chiaramonti ,&nbsp;Luca Rosi","doi":"10.1016/j.wasman.2025.115013","DOIUrl":"10.1016/j.wasman.2025.115013","url":null,"abstract":"<div><div>In Europe, 12.6 million tons of textile waste are generated annually (European Commission − Press release, Circular economy for textiles, 2023), and most of them are incinerated or landfilled. The sustainable recycling of textile residues is a key challenge worldwide and thermochemical processes are promising solutions to transform textiles into added-value products. This study examines slow pyrolysis at pilot scale, by processing two textile waste samples with high (TXN) and low (TX) nitrogen content, to evaluate the impact of nitrogen on pyrolysis process and reaction products. The tests showed that textile waste can be turned into a coal-like product, with a mass yield from 24.7 to 29.1 % wt db. Both the chars had a high C content (TX: 85.66 % wt db; TXN: 80.62 % wt db.) and calorific value (TX: 32.74 MJ/kg db; 31.55 MJ/kg db), comparable with anthracite. The char from TX showed a high surface area (319 m²/g), not found in that from TXN (12 m²/g). The oil fraction obtained from TX showed a high concentration of benzoic acid (227 g/l), while a lower concentration was found in the oil fraction from TXN (55 g/l). Both fractions contained furans, acetic acids, ketones, and aromatic compounds. Results suggested that the nitrogen content of textile waste does not affect the energy and mass balance of the process, while it has an impact on the composition of the char and on the oil. Regardless the N-content, study shows that slow pyrolysis can turn textile waste into a high value coal-like material, and into an oil fraction suitable for chemicals extraction.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115013"},"PeriodicalIF":7.1,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144665976","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}

{"title":"A combined gasification-chemical looping approach for valorizing waste tires into ammonia: Techno-economic analysis","authors":"Ali A. Al-Qadri ,&nbsp;Usama Ahmed ,&nbsp;Hafiz Muhammad Ali ,&nbsp;Ahmad Salam Farooqi","doi":"10.1016/j.wasman.2025.115020","DOIUrl":"10.1016/j.wasman.2025.115020","url":null,"abstract":"<div><div>The worldwide accumulation of scrap tires presents a significant waste management challenge with major environmental and health implications, where, the stockpiles of waste serve as breeding grounds for disease-carrying insects. Meanwhile, the rapid rise in energy demand brings mounting pressure to develop renewable and sustainable fuel options. One strategy is to produce hydrogen based fuel via waste thermochemcial recycling but transporting and storing hydrogen remains difficult due to its physical properties. Ammonia, on the other hand, is a hydrogen-rich compound that exists in liquid form at moderate pressures, making it promising for use as an efficient hydrogen carrier. This study presents an integrated process design to valorize waste tires into ammonia through chemical looping gasification and Haber-Bosch synthesis. Two cases were modeled and evaluated: Case 1 utilized conventional gasification and air separation for nitrogen, while Case 2 integrated chemical looping technology. In Case 2, chemical looping was employed to supply the nitrogen necessary for the Haber-Bosch process and to enhance syngas production in the initial reactor by utilizing partial oxidation step. Technical analyses found Case 2 achieved 16–17% greater process efficiency and 4% higher exergy efficiency compared to Case 1. An economic assessment revealed Case 2 reduced total investment costs by 13.5% and levelized ammonia production costs by 12%. The results demonstrate the potential for the proposed chemical looping approach to sustainably address the growing scrap tire problem worldwide, while simultaneously producing ammonia, which is an efficient mean of storing and transporting hydrogen. Overall, the concept merits further development and scale-up testing as a viable pathway satisfying future energy needs while achieving circular economy principles through full tire valorization.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115020"},"PeriodicalIF":7.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662395","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}

{"title":"Can active and intelligent packaging support sustainability in food sector? Insights from a consumer’s viewpoint","authors":"María J. López-Miguens ,&nbsp;Paula Álvarez-González ,&nbsp;Ana Dopico-Parada","doi":"10.1016/j.wasman.2025.115018","DOIUrl":"10.1016/j.wasman.2025.115018","url":null,"abstract":"<div><div>Recent advances in the food packaging industry that improves product preservation and support sustainability make it increasingly important to understand how consumers perceive these changes. Building on Cue Utilization theory, the purpose of this study is to evaluate how consumers infer their perception of packaging sustainability in their purchase intention of Active and Intelligent packaging. On a sample of 1489 European consumers, the results of a quantitative methodology based on partial least squares structural equation model (PLS-SEM) show that the intention to purchase is positively related to the direct environmental impact (manufacture, materials, durability, and end-of-life management) and the indirect impact (food waste reduction) and the social sustainability of packaging. However, no significant relationship was found regarding packaging’s economic function. Packaging attributes are an essential part of decision making. Industrial and waste managers can use our results to align packaging innovations with sustainability and waste management policies to facilitate their purchase intention. It is crucial to emphasize the environmental and social benefits while ensuring that perceived value outweighs any potential cost concerns.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115018"},"PeriodicalIF":7.1,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662396","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}

{"title":"Changes in organic matter composition during poultry manure composting: A new perspective on compost maturity using DAX resin fractionation and spectroscopic analysis","authors":"Gyumin Kim ,&nbsp;Woojin Chung ,&nbsp;Jin Hur ,&nbsp;Han Saem Lee ,&nbsp;Hyun Sang Shin","doi":"10.1016/j.wasman.2025.115015","DOIUrl":"10.1016/j.wasman.2025.115015","url":null,"abstract":"<div><div>Ensuring consistent quality and effective utilization of livestock manure compost requires an understanding of organic matter (OM) transformation and the development of reliable maturity indicators. However, in-depth investigations into the fully matured phase of the compost are limited. We investigated the 100-day composting process of poultry manure by analyzing its physicochemical properties, germination index (GI), dissolved organic matter (DOM) spectral indicators (humification index [HIX], fluorescence regional integration [FRI], and absorbance values ratio), and DOM fractions using liquid chromatography-organic carbon detection and DAX resin fractionation to track molecular structural changes. During the initial stabilization phase (days 0–10, GI &lt; 90 %), mineralization (CO₂, NH₃) and hydrophilic (Hi) component degradation led to the formation of high-molecular-weight hydrophobic acids (HoA). In the cooling phase (days 10–30, GI 90–120 %), a temperature drop (55 °C to 34 °C) facilitated polymeric organic transformation into compounds with higher HIX values. During the matured phase (days 31–100, GI 120–160 %), HoA significantly decreased, whereas low-molecular-weight hydrophobic neutral (HoN) components rapidly increased. During the fully matured phase (days 51–100, GI &gt; 140 %), HoN stabilized and spectral indices remained consistent, indicating the completion of OM transformation. The DOM composition of the poultry manure compost followed a sequential transition from Hi to HoA to HoN. The fluorescence characteristics of HoN suggested that FRI Region III could serve as a predictive maturity indicator. These findings enhance our understanding of compost OM transformation mechanisms and contribute to the development of a rapid and convenient maturity assessment method.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115015"},"PeriodicalIF":7.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656669","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}

{"title":"Modelling secondary waste composition using optimization and machine learning techniques: Case of the Czech Republic","authors":"Radovan Šomplák,&nbsp;Jaroslav Pluskal","doi":"10.1016/j.wasman.2025.115019","DOIUrl":"10.1016/j.wasman.2025.115019","url":null,"abstract":"<div><div>To support the shift toward a circular economy in waste management, it is essential to monitor progress using measurable indicators. However, the growing volume of secondary waste from pre-treatment processes highlights the need to assess its composition, as it can represent a diverse mixture and complicates the evaluation of individual waste streams. The proposed approach aims to estimate the composition of secondary waste by using a combination of machine learning and optimization techniques. The cornerstone for evaluation is data from waste management monitoring. Machine learning based on linear or Bayesian linear regression allows for the efficient processing of large datasets and the identification of key relationships in the system. The optimization model developed for a special form of data reconciliation maintains insight into the results and ensures the preservation of mass balances. In a case study in the Czech Republic, the model identified a 3 % reduction in the material recovery of municipal waste, as this waste is used for energy recovery or landfilled after transformation into secondary waste. Mixed secondary waste consists of 46 % plastic waste, with only 20 % being truly recycled. A significant portion is landfilled, which represents a potential for at least energy recovery from the waste. With refined waste management indicators and potential for recovery, the results can contribute to improvements in terms of technology and regional focus.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"205 ","pages":"Article 115019"},"PeriodicalIF":7.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144656670","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}