Waste management最新文献

{"title":"Parameter-sensitive life cycle assessment of sludge incineration technologies integrating energy balance model","authors":"Mengyue Liu ,&nbsp;Xueliang Yuan ,&nbsp;Leping Chen ,&nbsp;Xuerou Sheng ,&nbsp;Qingsong Wang ,&nbsp;Qiao Ma ,&nbsp;Jian Zuo","doi":"10.1016/j.wasman.2025.114783","DOIUrl":"10.1016/j.wasman.2025.114783","url":null,"abstract":"<div><div>Incineration is vital for safe sewage sludge treatment and resource recovery in China, using methods like mono-incineration (INC), and co-incineration in coal plant (CINP), cement kiln (CINC), and municipal solid waste incineration plant (CINM). Existing studies suffer from poor inventory quality and inaccurate quantification. To overcome these challenges, this study integrates the energy balance model with life cycle assessment to evaluate key system parameters, quantify co-incineration disturbances, and assess environmental impacts. Findings indicate critical moisture content for combustion as 70 %, 60 %, 50 %, and 80 % for the four methods, respectively, with INC exhibiting the highest environmental impact, followed by CINM. CINP and CINC yield environmental benefits by replacing coal or raw materials, achieving negative carbon effects of 34.8 % and 78.8 %, and avoiding 66.4 % and 76.1 % of environmental impacts, respectively. When sludge moisture surpasses 75 %, co-incineration results in higher carbon emissions than INC, with lower dry calorific values potentially increasing emissions up to fourfold. The study positions CINP and CINC as transitional solutions, with CINM as the future trend, while INC suits cities with high sludge output and strong economies. This research offers a basis for developing inventories for solid waste co-incineration in industrial kilns and optimizing the selection of sludge incineration technologies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114783"},"PeriodicalIF":7.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792558","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 multiple annual biosolids applications on the soil concentrations of metals, organochlorine pesticides and polychlorinated biphenyls in a field trial in Victoria, Australia","authors":"Suzie M Reichman ,&nbsp;Zhuyun Gu ,&nbsp;Kithsiri Bandara Dassanayake ,&nbsp;Bhawana Bhatta Kaudal ,&nbsp;Lia Szokovski ,&nbsp;Justin S. Leonard ,&nbsp;Alexander Coutts ,&nbsp;Aravind Surapaneni","doi":"10.1016/j.wasman.2025.114777","DOIUrl":"10.1016/j.wasman.2025.114777","url":null,"abstract":"<div><div>Biosolids are organic solids derived from sewage treatment processes with one of the common reuse options for biosolids being application to agricultural land as a soil amendment for fertiliser value. However, biosolids often include relatively high concentrations of potential contaminants. While there have been many studies investigating the risks of contaminants in biosolids after one application to soil, there have been far fewer studies researching the risks from multiple biosolids applications on working farms. Thus, the aims of this study were to assess the potential for soil contamination after four annual applications of biosolids to a pasture used for grazing cattle and silage production in Victoria, Australia. The study was the first to investigate the effects of multiple biosolids additions on soil concentrations of organochloride pesticides and polychlorinated biphenyls. The results demonstrated that Cu and Zn were the limiting contaminants measured, with soil concentrations above some Australian soil guidelines, but not Receiving Soil Contaminant Levels, after four biosolids additions. In addition, despite being required by government policy, all soil and biosolids concentrations of organochloride pesticides and polychlorinated biphenyls were very low with almost all measurements below detection limits. As such, rather than concentrating on organochloride pesticides and polychlorinated biphenyls, we suggest measurement and risk assessment efforts may be better directed towards emerging contaminants in biosolids, for example, per- and poly-fluoroalkyl substances, pharmaceuticals, chemicals in personal care products, and microplastics.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114777"},"PeriodicalIF":7.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fermentative lactic acid production from Sotol bagasse (Dasylirion spp.): Optimization of microwave-assisted biomass pre-treatment","authors":"Raul E. Orozco-Mena ,&nbsp;Neyba L. Torres-Armendariz ,&nbsp;Ivan Salmerón ,&nbsp;Marina Piñón-Muñiz ,&nbsp;José C. Espinoza-Hicks ,&nbsp;David Chavez-Flores ,&nbsp;Johanna Bacayo ,&nbsp;Víctor H. Ramos-Sánchez","doi":"10.1016/j.wasman.2025.114778","DOIUrl":"10.1016/j.wasman.2025.114778","url":null,"abstract":"<div><div>The valorization of industrial byproducts is a crucial step towards sustainable production. Sotol bagasse, a lignocellulosic residue from Sotol spirit production, is a promising feedstock for biorefineries. This study aimed to optimize microwave-assisted pre-treatment of sotol bagasse biomass for fermentative lactic acid production using a microbial consortium from cow manure. Microwave irradiation was employed to hydrolyze the complex structure of the Sotol bagasse, releasing fermentable sugars. Notably, these pre-treatments were more selective than traditional acid hydrolysis, minimizing the formation of inhibitory compounds like hydroxymethylfurfural. Instead, microwave pre-treatments promoted levulinic acid formation through autohydrolysis driven by steam explosions, a valuable chemical platform for various industrial applications. The optimal microwave pre-treatment conditions that led to almost pure glucose attaining a 3 % w/w efficiency in converting lignocellulose to glucose resulted in a maximum lactic acid production of 9.6 g/L. This study demonstrates the potential of Sotol bagasse as a sustainable feedstock for lactic acid production, contributing to a more circular economy.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114778"},"PeriodicalIF":7.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786161","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":"Comprehensive characterization of beverage cartons in urban waste: A case study from Austria","authors":"Lea Gritsch,&nbsp;Gisela Breslmayer,&nbsp;Jakob Lederer","doi":"10.1016/j.wasman.2025.114781","DOIUrl":"10.1016/j.wasman.2025.114781","url":null,"abstract":"<div><div>Beverage cartons are an important packaging material for dairy and other food products. Despite this importance, there are few studies that provide an in-depth characterization of beverage cartons when they become waste. This study aims to fill important data gaps on this packaging waste by presenting the results of a comprehensive characterization of beverage cartons, using the case study of Vienna. Through manual sorting analysis and high-temperature washing, moisture and dirt content and beverage carton types were assessed and annual quantities and separate collection rates were calculated. The results show that over 6,000 tonnes of beverage carton waste are generated in Vienna each year, mainly from fresh milk and juice. Over 80% of these are disposed of in mixed MSW, resulting in a net separate collection rate of 19.6%. The specific separate collection rate varied significantly depending on the type of packaging, ranging from 5 to 36%. In particular, beverage cartons with a high plastic content (up to 38%) showed a lower separate collection rate, undermining recycling efforts of beverage cartons. Moisture and dirt levels reached up to 28% of the gross mass, but only moderate differences were found between beverage cartons from mixed MSW and separate collection. Targeted consumer education and improved recycling processes would be essential to increase the usability of beverage carton secondary raw materials for high-value applications.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"201 ","pages":"Article 114781"},"PeriodicalIF":7.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards an online, high-frequency determination of the biochemical methane potential of sewage sludge","authors":"Maxime Dechesne ,&nbsp;Angélique Goffin ,&nbsp;Lila Boudahmane ,&nbsp;Carlyne Lacroix ,&nbsp;Anne-Sophie Permal ,&nbsp;Sabrina Guérin-Rechdaoui ,&nbsp;Vincent Rocher ,&nbsp;Gilles Varrault","doi":"10.1016/j.wasman.2025.114775","DOIUrl":"10.1016/j.wasman.2025.114775","url":null,"abstract":"<div><div>This study aimed to develop a rapid method for determining the biochemical methane potential (BMP) of centrifuged sludge using Three-Dimensional Excitation-Emission Matrix Fluorescence Spectroscopy (3D-EEM) analysis of sludge supernatant. Sixty wastewater sludge samples were collected from four different treatment plants, spanning different treatment stages. The sludge supernatant, obtained from the centrifuge step in WWTP, underwent 3D-EEM analysis, revealing six characteristic components of dissolved organic matter via Parallel Factor Analysis (PARAFAC). Since the PARAFAC methodology is not easily available for online monitoring, a peak-picking technique by extracting fluorescence intensity at the maximum excitation-emission localization of the PARAFAC components has been used to obtain the explanatory variables chosen for BMP prediction.</div><div>BMP predictive models were established using explanatory variables from 3D-EEM analysis including fluorescence intensities at six excitation-emission wavelength pairs and 15 ratios derived from these intensities. Partial least squares regression was used for the predictive model calibration and highly accurate models for BMP prediction were obtained (R²v = 0.84, RPD = 2.59).</div><div>Significant progress was achieved as sample preparation for 3D fluorescence spectroscopy simplified to filtration and dilution, enabling rapid analysis within an hour. The possibility of integrating these steps into real-time analysis using a fluorescence probe suggests a pathway to online, high-frequency, and real-time determination of sludge BMP. This approach marks a substantial improvement over conventional BMP tests, which take weeks, and near-infrared spectroscopy, which requires sludge drying, taking several days for analysis. The study facilitates efficient and timely evaluation of the biochemical methane potential of sewage sludge.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114775"},"PeriodicalIF":7.1,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143769124","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":"The effect of thiourea activation on physicochemical and catalytic properties of biochars and hydrochars from sugarcane bagasse: Application to metal recovery from wastes","authors":"G. Gascó ,&nbsp;S.P Barragán-Mantilla ,&nbsp;J. Paz-Ferreiro ,&nbsp;A. Méndez","doi":"10.1016/j.wasman.2025.114773","DOIUrl":"10.1016/j.wasman.2025.114773","url":null,"abstract":"<div><div>Two biochars were prepared from pyrolysis of sugarcane bagasse (SC) at 550 and 750 °C for 3 h and named as BC550 and BC750, respectively. One hydrochar was prepared from Hydrothermal Carbonization (HTC) of SC solution at 200 °C for 2 h (HC200). Chars (BC550, BC750 and HC200) were mixed with thiourea (10 % in weight) and heated at 350 °C for 1 h leading to BC550-TU, BC750-TU, and HC200-TU, respectively. Pristine and thiourea-activated biochars were characterized by FTIR, N₂ isotherms, XRD, XRF and ultimate analysis. Thiourea activation increased the H/C of biochar, indicating that the presence of N and S and their reaction with carbon structures of biochar hinders the formation of aromatic carbon. Thiourea activation increased the surface area of biochar prepared at 550 °C, while decreasing the surface area of biochar prepared at 750 °C or hydrochar. Finally, both pristine and activated biochars were used as catalysts in the oxidation of sulfide minerals for metal recovery. The addition of thiourea-activated biochars significantly enhanced the extraction of Cu and Zn from mining waste, from 47.4 % of Cu and 88.1 % of Zn to values of 99.4–100 %, while reducing As extraction. However, in leaching processes involving minerals with higher Cu and Zn content, the extraction percentages did not reach such high values (&lt;50 % for Cu and &lt; 90 % for Zn). It can be concluded that the use of thiourea-activated biochars enable the development of low cost and sustainable processes for the recovery of metals from wastes.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114773"},"PeriodicalIF":7.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760172","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":"Two-phase conversion process of ethylene glycol and the mechanism of synergistic extraction of lithium in subcritical water system","authors":"Yayun Ma ,&nbsp;Bei Wang ,&nbsp;Xiaojian Liu ,&nbsp;Xiangyang Zhou ,&nbsp;Juan Yang ,&nbsp;Jingjing Tang ,&nbsp;Yaguang Zhang ,&nbsp;Junqiang Zhu ,&nbsp;Zhongbing Wang ,&nbsp;Fanyun Su ,&nbsp;Jinyue Ge","doi":"10.1016/j.wasman.2025.114776","DOIUrl":"10.1016/j.wasman.2025.114776","url":null,"abstract":"<div><div>The efficient recovery of lithium in spent lithium-ion batteries (LIBs) is of key significance to alleviate the resource utilization of lithium in solid waste. Herein, a ethylene glycol (EG) assisted subcritical method is proposed for the selective recovery of lithium. Under the optimal conditions with reaction temperature of 270℃, reaction time of 3 h, rotational speed of 300 r min⁻¹, L/S ratio of 10:1 mL g⁻¹, and EG dosage of 60 %, lithium can be leached with efficiencies of up to 98.4 % while the transition metals remain in the residue phase as oxides (NiO and CoO) or carbonate (MnCO₃). The subcritical lithium extraction mechanism indicates that the hydroxyl functional group of EG and the pyrolysis gas played a synergistic role in reducing the cathode powder. The EG-assisted subcritical lithium extraction system greatly improves the recovery efficiency of lithium under more environmentally friendly conditions, and lays a good foundation for the subsequent low-acid leaching of lithium extraction residue. This process provides a novel approach to the green and selective recycling process of spent LIBs.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114776"},"PeriodicalIF":7.1,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760170","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":"Study of the impact of policy interventions on the sustainable development of fly ash recycling industry in western China via dynamic business model","authors":"Min Zhang,&nbsp;He Xu,&nbsp;Jing Wu","doi":"10.1016/j.wasman.2025.114780","DOIUrl":"10.1016/j.wasman.2025.114780","url":null,"abstract":"<div><div>Business models, which primarily mainly formulate the organizational structure and strategic guidelines of the industry from a conceptual perspective. To achieve quantitative outputs of the comprehensive performance of the solid waste recycling industry, this study integrates system dynamics with the business model canvas to construct an innovative dynamic business model (DBM) for fly ash (FA) recycling. The model is then applied to assess the effectiveness and mechanisms of various policies on the development of the FA recycling industry in western China. The results indicate that different policy scenarios can positively influence the FA recycling industry in western China to various degrees. (i) Promoting technology research and development can increase corporate profits and achieve high environmental and economic benefits. (ii) Increasing government propaganda and popularity can enhance economic benefits while controlling government input costs, as 30% is considered the most reasonable promotion intensity. (iii) Providing primage can effectively reduce the FA stockpile. (iv) Integrating into carbon markets can transform the environmental benefits of FA recycling into economic value. (v) The synergistic effect of multiple policies is more conducive to the development of solid waste recycling industry, as the amount of FA recycling is boosted to 107.68 million tons, an increase of 4.83 times compared to the baseline scenario (i.e., no policy intervention), and the profit of FA recycling are 2.37 times higher than those in the baseline scenario. Finally, corresponding policy recommendations to promote the sustainable development of FA recycling industry in western China are proposed.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114780"},"PeriodicalIF":7.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760171","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 comparative pyrolysis study of different waste wind turbine blade parts: Kinetics, product distribution and evolution, and economics","authors":"Yang Xu,&nbsp;Fei Wang,&nbsp;Dehua Liang,&nbsp;Guojun Lv,&nbsp;Fengyu He,&nbsp;Shengrong Xue","doi":"10.1016/j.wasman.2025.114782","DOIUrl":"10.1016/j.wasman.2025.114782","url":null,"abstract":"<div><div>The resource treatment and recycling of waste wind turbine blades (WWTBs) have become an important challenge globally. Considering mechanical strength during operation, the designed construction of WTBs consists of B1 (balsa-filled part), B2 (polyethylene terephthalate (PET) foam-filled part) and B3 (pure glass fiber-reinforced polymer (GFRP) part), whereas direct mixed treatment can generate low-quality and heterogeneous products. Current studies focused on B3 or the whole blades, but few studied the pyrolysis behavior and energy value of different parts. In this study, the comparative study of the kinetic, product distribution and evolution, and economics of different parts was conducted. Thermogravimetric and kinetic revealed the phase transitions and energy requirements during conversion. Py-GC/MS and fixed-bed experiments confirmed that B1 and B2 generated more oils and gases with more coke in the solids at 600 °C, which was related to carbonization of their core components. High O/C ratios of balsa and PET caused more oxygen-containing groups and products to be produced in the B1 and B2 reaction pathways. The high economics indicated that pyrolysis was suitable for B2 and B3, and the detailed exploration of B1 part should be continued. Our work provides application guidance for resource recovery and utilization of different WWTB parts.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114782"},"PeriodicalIF":7.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760168","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":"Leaching model of an expanding coastal dumpsite considering climate change","authors":"Yijie Wang ,&nbsp;Xiaoqing Pi ,&nbsp;Vinay Yadav ,&nbsp;Abid Hussain ,&nbsp;Qian Liu ,&nbsp;Yao Wang ,&nbsp;Yuliang Guo ,&nbsp;Yan Zhang ,&nbsp;Xunchang Fei","doi":"10.1016/j.wasman.2025.114772","DOIUrl":"10.1016/j.wasman.2025.114772","url":null,"abstract":"<div><div>Coastal dumpsites, which are common in low- and middle-income countries, pose significant environmental threats due to the lack of containment systems and their vulnerability to erosion, flooding, and climate change. Neither field measurements nor mechanistic models are abundant in the literature to understand the relevant processes. We develop a simple yet generic leachate generation model, which integrates a 3-dimensional (3D) waste dumping module, a water balance module, and a pollutant transport module. The model is validated using the available information of the Thilafushi dumpsite in the Maldives, which is a typical example of Small Island Developing States (SIDS). The measured groundwater total dissolved solids (TDS) in nearby monitoring wells of the dumpsite match nicely with the modeling results using the dumpsite model and another pollutant transport in aquifer model. Furthermore, the model predicts that the cumulative releases of dissolved organic carbon, copper, and chromium will increase by 100–182% between 2022 and 2100 under the baseline scenario. Three climate change factors are investigated, including precipitation variation, temperature rise, and sea level rise, under three Shared Socioeconomic Pathway (SSP) scenarios. Temperature rise shows the most significant contribution to the increase in pollutant leaching due to increased leaching potential. The combined effect of temperature rise and precipitation variation will increase the cumulative release of Cu by up to 23% by 2100 under SSP585 compared to the baseline scenario. The established model is readily applicable to other coastal dumpsites in SIDS and coastal countries, which call for timely assessments and potential mitigations.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"200 ","pages":"Article 114772"},"PeriodicalIF":7.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143760169","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}