Waste management最新文献

{"title":"A novel method for refining photovoltaic waste silicon powder using photovoltaic waste glass: Pulsed direct current-assisted refining","authors":"Yirong Cui,&nbsp;Zhiqiang Hu,&nbsp;Difei Wang,&nbsp;Jiayan Li,&nbsp;Yi Tan,&nbsp;Pengting Li","doi":"10.1016/j.wasman.2025.114819","DOIUrl":"10.1016/j.wasman.2025.114819","url":null,"abstract":"<div><div>Photovoltaic waste silicon powder (PWSP), as the by-products during the solar cell production, and how to achieve its effective recycling and reuse has become the focus of industry research. In this work, focused on the oxidation of PWSP during the refining process, a novel method was proposed. Based on the concept of slag refining, photovoltaic waste glass (PWG) was used to react with the oxide layer, and pulsed direct current was introduced to assist. Compared with the traditional process, the pulsed direct current assisted refining method does not introduce impurities, but also reduces the amount of chemical reagents, and the operation is very simple. Under the influence of pulsed direct current, network destructors such as Ca²⁺, Na⁺, and Al³⁺ in the PWG were cyclically utilized, effectively disrupting the SiO₂ network structure. The Joule heating effect generated by the current increased the melt temperature and reduced the slag phase viscosity, creating an ideal microenvironment for silicon separation. Furthermore, the stirring effect induced by the pulsed direct current enhanced particle collisions, further accelerating the reaction between the network destructors and the oxide layer. Compared to the non-current application, the introduction of pulsed direct current significantly improved the silicon recovery rate from 77.0 % to 93.3 %. This study pioneered a pulsed direct current-assisted refining method for PWSP using PWG, providing a green and clean potential solution for the photovoltaic industry’s development.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114819"},"PeriodicalIF":7.1,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881288","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":"Strategies for phosphorus recovery in livestock operations: Assessing decentralized and distributed recovery systems","authors":"Rogelio Ochoa-Barragán ,&nbsp;Edgar Martín-Hernández ,&nbsp;Sidney Omelon ,&nbsp;José María Ponce-Ortega ,&nbsp;César Ramírez-Márquez","doi":"10.1016/j.wasman.2025.114837","DOIUrl":"10.1016/j.wasman.2025.114837","url":null,"abstract":"<div><div>Phosphorus recovery and recycling are crucial to ensure the sustainable supply of this resource while preserving soils and water bodies. Livestock operations are a major source of phosphorus releases through manure generation. Manure storage and over-application may result in the transportation of phosphorus to water bodies by runoff, leading to nutrient pollution. However, their lack of economies of scale and spatial scattering hinders phosphorus recovery at livestock operations. To address these issues, this work explores the implementation of decentralized and distributed strategies for phosphorus recovery at livestock operations through manure processing centers and mobile processing units, respectively. A multi-objective optimization model is developed to design optimal networks for each strategy studied considering environmental and economic aspects. The optimal location of processing centers is determined according to the processing capacity of each phosphorus recovery technology, the location of the livestock operations, and the manure generated by each operation. The decentralized and distributed strategies for phosphorus recovery are assessed using the State of Minnesota in the USA as a case study. Phosphorus recovery can be performed using a decentralized recovery system with minimum greenhouse gas emissions, resulting in an investment cost of 45 million USD. Nevertheless, integrating a distributed phosphorus recovery approach based on mobile units in the decentralized system results in a more cost-effective recovery strategy. This strategy is also estimated to reduce the cost of phosphorus recovery at livestock operations to 23 million USD.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114837"},"PeriodicalIF":7.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879439","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":"Valorization of marine crustacean shells waste via fermentation technology: A comprehensive review on derived value-added compounds and enhancing their industrial applications","authors":"Samad Tavakoli ,&nbsp;Qing Li ,&nbsp;Wenyu Han ,&nbsp;Huijuan Zhang ,&nbsp;Ma Hui ,&nbsp;Luming Deng ,&nbsp;Armin Mirzapour Kouhdasht ,&nbsp;Yuqing Tan ,&nbsp;Yongkang Luo ,&nbsp;Hui Hong ,&nbsp;Kefeng Wu","doi":"10.1016/j.wasman.2025.114831","DOIUrl":"10.1016/j.wasman.2025.114831","url":null,"abstract":"<div><div>Crustacean processing industries represent the largest segment of global seafood production due to their high demand and considerable commercial value. The crustacean processing sectors annually generate tremendous amounts of waste streams, such as shells, that their disposal and management pose serious challenges. Crustacean shell waste (CSW) contains large amounts of chitin, chitosan, astaxanthin, minerals, bioactive peptides and amino acids, and their improper management leads to both nutritional loss and environmental hazard crisis. To mitigate these problems, implementing secondary processing and valorization of CSW in order to isolate valuable biocompounds is crucial. Two microbial fermentation systems, including Solid-state fermentation (SSF) and submerged/liquid fermentation (SLF) have been established as safe, efficient, and environmentally friendly solutions for the biorefinery of valuable products from CSW. The fermentation-derived ingredients possess multifunctional properties, enabling their application across diverse industries such as food, feed, pharma, cosmetics, agriculture, water treatment, etc. With further research and investments, microbial fermentation has the potential to become the key technique in the biorefining industries, transform our food production systems, and serve the circularity and sustainability of the blue economy. In this review, the hazards associated with CSW accumulation and the role of bioconversion in the value addition of CSW through microbial fermentation are critically presented according to recent information on the scenarios; the advances and revolutions of microbial fermentation in commercialization, and the importance of process variables are comprehensively discussed; the challenges in the emerging field of science are identified, and the future trends are addressed.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114831"},"PeriodicalIF":7.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881277","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":"Valorization of solid digestate through biochar production for toluene adsorption and enhanced energy recovery as solid recovered fuel","authors":"Shao-Fu Tu ,&nbsp;Yu-Ming Chu ,&nbsp;Tse-Lun Chen ,&nbsp;Hsing-Cheng Hsi ,&nbsp;Hwong-wen Ma ,&nbsp;Yu-Chieh Ting","doi":"10.1016/j.wasman.2025.114845","DOIUrl":"10.1016/j.wasman.2025.114845","url":null,"abstract":"<div><div>Anaerobic digestion (AD) transforms organic waste into biogas, aligning with circular economy principles; however, its byproduct, digestate, poses waste management challenges due to variable composition and potential heavy metal contamination. This study proposes an innovative dual-purpose approach to convert waste digestate and air pollutants into energy. Solid digestate was pyrolyzed to produce high-performance biochar for toluene adsorption and subsequent use as solid recovered fuel (SRF), effectively valorizing waste materials. Unmodified and potassium carbonate (K₂CO₃)-modified biochars were produced via pyrolysis at temperatures ranging from 500 to 800 °C, and their physicochemical properties were thoroughly analyzed. K₂CO₃ modification significantly enhanced biochar porosity, reduced ash content, and increased toluene adsorption capacity from 81.63 mg/g to 963.94 mg/g, surpassing commercial activated carbons. Moreover, the calorific value of biochar ranged from 10.66 MJ/kg to 33.56 MJ/kg prior to adsorption, with an additional increase of 5 %–33 % after adsorption, meeting SRF criteria. This dual process effectively converts both waste and air pollutants into energy resources. Economic analysis demonstrated that the production costs of modified biochar are considerably lower than those of commercial activated carbons, offering a cost-effective solution for industrial applications. These findings demonstrate that converting digestate into K₂CO₃-modified biochar not only enhances toluene adsorption but also provides an efficient pathway for waste valorization and energy recovery as solid recovered fuel. By integrating pollution control with resource utilization, this approach offers a practical strategy for managing digestate while mitigating VOC emissions.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114845"},"PeriodicalIF":7.1,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143881290","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":"Multi-objective optimization and Techno-economic analyses of conventional combustion and chemical looping combustion for a Municipal solid waste incineration plant in China","authors":"Huimin Liu ,&nbsp;Zhehao Jin ,&nbsp;Ruijuan Mei ,&nbsp;Min Li","doi":"10.1016/j.wasman.2025.114834","DOIUrl":"10.1016/j.wasman.2025.114834","url":null,"abstract":"<div><div>Municipal solid waste (MSW) incineration for power generation is an alternative to landfill treatment, adhering to WtE principles and circular economy. It generates significant pollutants. For instance, in conventional combustion (CC), the flue gas contains approximately 21.34 % carbon dioxide (CO₂), contributing to environmental pollution. With the push for carbon neutrality in China, CO₂ emissions play a vital role in electricity price determination. This study compares two MSW incineration methods: CC and chemical looping combustion (CLC) for CO₂ capture. Using the Non-dominated Sorting Genetic Algorithms (NSGA-II), multi-objective optimization is carried out with total capital investment (TCI) and exergy efficiency (EE) as objectives. Comprehensive economic, financial, carbon footprint, and exergy analyses are also conducted. The results show that CLC MSW incineration has a 23.41 % higher TCI than CC MSW incineration. However, it shortens the payback period by 5.91 years and captures 1,073,200 tonnes of CO₂ annually. The exergy efficiency of CC MSW incineration is 23.64 %, while that of CLC MSW incineration is 14.36 %. The power generation rate of CC MSW incineration reaches 44,094 kW, compared to 29,562 kW for CLC MSW incineration. These results offer valuable references for local governments and investors when choosing the optimal construction method for MSW incineration facilities.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114834"},"PeriodicalIF":7.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876865","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":"Tackling the challenges of food waste diary studies — Testing strategies with Finnish data","authors":"Hanna Hartikainen ,&nbsp;Joel Kostensalo ,&nbsp;Inkeri Riipi","doi":"10.1016/j.wasman.2025.114844","DOIUrl":"10.1016/j.wasman.2025.114844","url":null,"abstract":"<div><div>This study reports food waste diary results in Finland from 2019 (296 households) and 2022 (372 households) using an online food waste diary Kotihukka. According to the results, Finnish households waste 15.5–16.9 kg (SD 16.7–17.5 kg) of edible food per person per year. The results are an underestimate, but diary method is still a suitable method for collecting detailed and household specific food waste data and monitoring the relative difference in waste volumes. Furthermore, to evaluate the results, it is important to concentrate on 1) sample requirements for repeated measures, 2) needed resources, and 3) methodological restrictions. First, food waste diary studies often lack evidence-based discussion on the adequacy of data to monitor the direction of food waste. This study demonstrated that the sample sizes and length of the observation period (14 days) would be sufficient to detect a population-level decrease of 20–25 % in the amount of food waste during the next decade. Secondly, as bigger sample sizes require more resources, the necessity of kitchen scales was systematically studied for the first time. This study found evidence that households can report food waste as reliably without the assistance of kitchen scales as with kitchen scales, and therefore it is possible to cut costs and improve scalability without causing measurement bias. Third, since often most motivated participants attend the diary studies, this study also provides strong evidence that a self-selection bias can be reduced with monetary compensation: the household dropout rate decreased from 29 % to 7 %.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114844"},"PeriodicalIF":7.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876863","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":"Application of green waste polyphenols in natural antimicrobial materials for the environmental fields: A review","authors":"Yuqian Zhou,&nbsp;Zhongxin Tan","doi":"10.1016/j.wasman.2025.114800","DOIUrl":"10.1016/j.wasman.2025.114800","url":null,"abstract":"<div><div>In recent years, green waste polyphenols (GWPs) have attracted global attention due to their abundant renewable resources and excellent antibacterial properties. We analyzed the research progress on the antimicrobial properties of natural polyphenol composites (including polyphenol-metal nanoparticles, polyphenol nanofiber membranes, polyphenol-polymer membranes, and polyphenol hydrogels) in environmental applications. The waste sources of polyphenols and the latest extraction technologies were systematically summarized, and a universal hydrodynamic cavitation-integrated membrane technology combined with polyphenol extraction and purification process was initially constructed. The inhibitory effects of GWPs on pathogenic bacteria and the antibacterial properties of polyphenol composites in the environmental field were systematically analyzed. These composites exhibited outstanding antimicrobial performance, effectively inhibiting <em>E. coli</em> and <em>S. aureus</em> by up to 100%, especially in water treatment and air filtration. In addition, the advantages, challenges, and prospects for the application of green waste polyphenol antibacterial materials (GWPAMs) in the environmental field are discussed. With high efficiency, low toxicity, antimicrobial resistance, and sustainable antimicrobial properties, GWPs exhibit significant application potential in the “resource recycling–pollution control–ecological restoration” synergistic system within the environmental field. Future work should focus on the green synthesis of polyphenol composites, conducting systematic and thorough investigations on their antibacterial mechanisms, and enhancing their antibacterial properties in agriculture, waste treatment, and soil remediation, to improve their environmental adaptability and sustainable application value.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114800"},"PeriodicalIF":7.1,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876864","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":"Terahertz-based identification of waste paper for improved recycling in Japan","authors":"Dai Otsuka ,&nbsp;Asami Kawaguchi ,&nbsp;Ayaka Abe ,&nbsp;Shiho Sasaki ,&nbsp;Yusuke Yoshimura ,&nbsp;Iori Tomoda ,&nbsp;Tadao Tanabe","doi":"10.1016/j.wasman.2025.114795","DOIUrl":"10.1016/j.wasman.2025.114795","url":null,"abstract":"<div><div>The identification of different types of wastepaper is important during recycling. In this study, we demonstrate the effectiveness of nondestructive diagnostic testing using terahertz waves. Seven types of paper, including contraband paper, were irradiated with terahertz waves of multiple frequencies over a wide bandwidth, and their transmission characteristics evaluated and contrasted. The experimental results show a negative correlation between the basis weight of the samples and the transmittance of paper pulp, which allows to identification of paper pulp types. These results suggest that terahertz waves can be an effective method for identifying different types of paper pulp. Based on these results, we believe that Terahertz transmission measurements can significantly contribute to the improved recycling of recovered paper resources.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114795"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877105","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 comprehensive review of sustainable valorisation of lignocellulosic biomass and plastic waste into biofuels and chemicals via co-liquefaction","authors":"Rasangika Thathsaranee Weligama Thuppahige ,&nbsp;Leonie Barner ,&nbsp;Mahboobeh Shahbazi ,&nbsp;Gabriel Fraga ,&nbsp;Lalehvash Moghaddam","doi":"10.1016/j.wasman.2025.114827","DOIUrl":"10.1016/j.wasman.2025.114827","url":null,"abstract":"<div><div>Liquefaction stands out as a promising strategy within the bioeconomy, offering a pathway to convert waste into valuable fuels and products. However, bio-oil from biomass liquefaction has high oxygen content and poor calorific value, limiting its practical applications. To overcome these challenges, one promising approach is the co-liquefaction of oxygen-rich biomass with hydrogen-rich plastic, offering a sustainable means of producing high-quality oil. This review explores lignocellulosic biomass and plastic co-liquefaction, highlighting its behaviours, reaction pathways, and process parameters’ effects. The co-liquefaction process offers significant advantages over lignocellulosic biomass or plastic liquefaction in improving oil quality and yield. Comprehensive studies on the effect of process parameters and reaction pathways are much needed to optimise the conditions and design an efficient and effective co-liquefaction process for lignocellulosic biomass and plastics. Life cycle assessment (LCA) and techno-economic assessment (TEA) are two viable approaches to evaluating the potential environmental impacts and economic performance, respectively. Finally, lignocellulosic biomass and plastic waste co-liquefaction is a viable approach to managing waste and producing valuable materials, which promotes significant values, including resource efficiency, waste reduction, environmental sustainability, and economic opportunities.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114827"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143873542","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":"Effects of different types of municipal solid waste incineration slag on landfill stabilization and related microbiological mechanism","authors":"Ya-nan Wang,&nbsp;Yahui Li,&nbsp;Wenyu Yang,&nbsp;Wenyu Wang,&nbsp;Huawei Wang,&nbsp;Yingjie Sun,&nbsp;Jingliang Xie,&nbsp;Yifan Zheng,&nbsp;Xiongbo Cui,&nbsp;Weihua Li,&nbsp;Rongxing Bian","doi":"10.1016/j.wasman.2025.114833","DOIUrl":"10.1016/j.wasman.2025.114833","url":null,"abstract":"<div><div>Municipal solid waste incineration slag has the potential to accelerate the stabilization of landfills, but the effects of key slag components (i.e., alkaline substances and ferromagnetic substances) on the landfilling process have not been systematically studied. Therefore, landfill bioreactors containing different types of incineration slag, including a control group (CK), raw slag (RS), iron-rich slag (FM), and alkali-rich slag (AL), mixed with refuse at 5% and 10% ratios, were established. The results showed that the addition of RS was superior than FM and AL in accelerating refuse degradation, and the degree of stabilization was significantly better at a high slag addition ratio (10%) than at a low ratio (5%). Addition of 10% RS was most effective in DOM removal in the leachate, which was mainly because the raw slag had a high content of alkaline substances (46.78%) and a relatively low content of ferromagnetic substances (7.01%). The addition of RS and AL increased the bacterial population in the early and middle stages of landfilling, but the addition of 10% FM resulted in a decrease in bacterial population. The dominant genus was <em>Lactobacillus</em> in the early stage of landfilling, while <em>Clostridium</em> and <em>Petrimonas</em> were the dominant genera in the late and final stages of landfilling in the slag addition systems, and alkaline substances played a vital role in the succession of bacterial community. The addition of slag promoted the abundance of amino acid metabolism and carbohydrate metabolism pathways involved in refuse degradation.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"202 ","pages":"Article 114833"},"PeriodicalIF":7.1,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143877106","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}