Waste management最新文献_第2页

Thermo-Chemical Recycling of SRM from Mixed Plastic Waste via Entrained-Flow Gasification: A Kinetic Study on Devolatilization and Char Reactivity 混合塑料垃圾中SRM的夹带流气化热化学回收：脱挥发和焦反应动力学研究。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-02-02 DOI: 10.1016/j.wasman.2026.115386

Weiss Naim , Benedikt Rohrmoser , Lukas Springmann , Fabian Roemer , Thomas Glorius , Sebastian Fendt , Hartmut Spliethoff

{"title":"Thermo-Chemical Recycling of SRM from Mixed Plastic Waste via Entrained-Flow Gasification: A Kinetic Study on Devolatilization and Char Reactivity","authors":"Weiss Naim , Benedikt Rohrmoser , Lukas Springmann , Fabian Roemer , Thomas Glorius , Sebastian Fendt , Hartmut Spliethoff","doi":"10.1016/j.wasman.2026.115386","DOIUrl":"10.1016/j.wasman.2026.115386","url":null,"abstract":"<div><div>Entrained-flow gasification of waste allows for high recycling rates towards CO<sub>2</sub>-neutral chemical building blocks. In order to engineer such gasifier facilities, experimental analysis of the reaction rates is of great importance.</div><div>Solid-recovered material (SRM) from commercial mixed plastic waste is prepared cryogenically to a conveyable powder achieving a characteristic particle diameter, suitable for subsequent analysis at pressurized conditions in a wire-mesh reactor, a high-temperature entrained-flow reactor and thermogravimetric analyzer.</div><div>The pyrolysis behavior of SRM is investigated via a parameter study on temperature, pressure, heating rate and holding time. Kinetic devolatilization data is derived from a wire-mesh reactor, mimicking the reaction conditions of an entrained-flow gasifier at lab-scale. Full devolatilization within 400 ms at 1600 °C despite a particle size of 600 µm is achieved.</div><div>A representative SRM pyrolysis char is prepared in a unique entrained-flow reactor under relevant near-industrial conditions at 1400 °C, 10 bar and 2.4 s for the first time in literature. The char sample is characterized in its properties and intrinsic reactivity towards O<sub>2</sub>, CO<sub>2</sub> and H<sub>2</sub>O in a thermogravimetric analyzer at 10 bar. A Power Law model allows for accurate representation of the experimental results, providing a reliable data set for gasifier CFD simulation. Here, the reactivity of SRM is driven by the Alkali-Index, and greater than bituminous coal, lower than lignite, but similar to pine and waste wood.</div><div>Highly necessary performance indicators like conversion, cold gas efficiency and syngas quality can be determined towards thermo-chemical recycling of plastic waste allowing for stand-alone or co-gasification strategies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115386"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146114414","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

A novel slurry co-pyrolysis process for hydrogen production from polypropylene and waste motor oil based on a synergistic mechanism 基于协同机制的聚丙烯和废机油浆料共热解制氢新工艺。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-02-02 DOI: 10.1016/j.wasman.2026.115389

Donglin He , Zhilu Ren , Shuang Chen , Feng Liao , Hong Yin , Yafei Chen , Xia Xiao , Yangping Ou , Haifeng Gong , Changlei Qin

{"title":"A novel slurry co-pyrolysis process for hydrogen production from polypropylene and waste motor oil based on a synergistic mechanism","authors":"Donglin He , Zhilu Ren , Shuang Chen , Feng Liao , Hong Yin , Yafei Chen , Xia Xiao , Yangping Ou , Haifeng Gong , Changlei Qin","doi":"10.1016/j.wasman.2026.115389","DOIUrl":"10.1016/j.wasman.2026.115389","url":null,"abstract":"<div><div>Efficient conversion of urban organic solid waste into hydrogen-rich gas constitutes a pivotal pathway toward achieving carbon neutrality goals. In this work, a slurry-assisted, sorption-enhanced co-pyrolysis/reforming strategy was employed to optimize the blending ratio and operating parameters for waste polypropylene (PP) and waste motor oil (WMO). Experimental screening identified a polypropylene-to- waste motor oil mass ratio of 7:3 as optimal, yielding 4.91 mmol/g H<sub>2</sub> yield and 32.32 % H<sub>2</sub> at 800 °C without catalyst. Implementation of the slurry-assisted process improved heat and mass transfer, increasing the H<sub>2</sub> concentration to 35.79 % and the H<sub>2</sub> yield to 7.24 mmol/g. Introducing Ni/ZSM-5 markedly enhanced hydrogen generation, producing 60.43 % H<sub>2</sub> and 35.31 mmol/g H<sub>2</sub> at 800 °C; further coupling with CaO increased the H<sub>2</sub> fraction to 62.74 % and reduced CO<sub>2</sub> content to 3.81 %. The optimal reforming temperature was 750 °C, where the Ni/ZSM-5 + CaO system achieved 31.38 mmol/g H<sub>2</sub>, 39.16 mmol/g syngas yield, and 3.44 % CO<sub>2</sub>. SEM/TEM characterization revealed extensive carbon nanotube formation and severe coking on Ni/ZSM-5, mitigated by CaO addition. ReaxFF molecular dynamics simulations with hydrogen-atom tracking confirmed that PP acted as a hydrogen donor during co-pyrolysis, elucidating the mechanistic basis of the observed synergy. This slurry-assisted and sorption-enhanced co-pyrolysis/reforming strategy significantly enhances hydrogen yield and purity from waste PP and WMO co-conversion, offering a novel approach and theoretical insight for high-value valorization of polymers and waste oils toward targeted H<sub>2</sub> production.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115389"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146114403","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

Upcycling of waste Ni-MH battery casing into Binder-Free electrode for efficient ethanol Electro-Oxidation 废镍氢电池壳升级回收制备高效乙醇电氧化无粘结剂电极。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-02-04 DOI: 10.1016/j.wasman.2026.115366

Sushma Kumari, Sapna Devi, Menaka Jha

{"title":"Upcycling of waste Ni-MH battery casing into Binder-Free electrode for efficient ethanol Electro-Oxidation","authors":"Sushma Kumari, Sapna Devi, Menaka Jha","doi":"10.1016/j.wasman.2026.115366","DOIUrl":"10.1016/j.wasman.2026.115366","url":null,"abstract":"<div><div>The rapid proliferation of electronic devices has led to a surge in electronic waste, raising significant environmental concerns. In this study, we demonstrate a sustainable and cost-effective approach for converting waste nickel–metal hydride (Ni-MH) battery casings into high-performance electrocatalysts for the ethanol oxidation reaction (EOR) in alkaline media. Upon Hydrothermal treatment, a thin <em>in situ</em> nickel oxyhydroxide layer is generated on the iron-rich battery casing surface, which serves as the electrochemically active phase for ethanol oxidation. Importantly, the metallic casing is preserved and functions as a highly conductive current collector, ensuring efficient electron transport. The enhanced electrochemical performance originates from the strong interfacial coupling between the metallic substrate and the oxyhydroxide layer, which facilitates rapid charge transfer rather than relying on the intrinsic conductivity of the oxyhydroxide itself. In addition, the oxyhydroxide layer passivates the metallic surface, imparting improved corrosion resistance while maintaining effective electronic communication with the underlying metal. The fabricated electrode exhibited outstanding electrocatalytic activity, delivering a high peak current density of 165 mA cm<sup>−2</sup> at 1.70 V and demonstrating an onset potential of 1.36 V with a low overpotential of 1.42 V at 20 mA cm<sup>−2</sup>. Additionally, a small Tafel slope of 46 mV dec<sup>-1</sup> indicated favourable reaction kinetics. This study highlights a green strategy to upcycle battery waste for efficient energy conversion, offering dual benefits of environmental protection and energy sustainability.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115366"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146126675","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

Overflow-aware recycling bin location with random utilities: A case study of the commune of Estación Central, Chile 溢出意识回收箱位置随机公用事业：以智利中部Estación公社为例

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-22 DOI: 10.1016/j.wasman.2026.115360

Gonzalo Méndez-Vogel , Sebastián Dávila-Gálvez , Pedro Jara-Moroni , Jorge Zamorano

{"title":"Overflow-aware recycling bin location with random utilities: A case study of the commune of Estación Central, Chile","authors":"Gonzalo Méndez-Vogel , Sebastián Dávila-Gálvez , Pedro Jara-Moroni , Jorge Zamorano","doi":"10.1016/j.wasman.2026.115360","DOIUrl":"10.1016/j.wasman.2026.115360","url":null,"abstract":"<div><div>This study tackles the challenge of locating recycling bins to improve municipal waste collection. We develop a lexicographic mixed-integer optimization model with two sequential objectives: maximizing the amount of recycled glass and then minimizing bin overflow. The model considers how people decide where to recycle, which is captured through a multinomial logit (random-utility) choice model with an outside option. Demand is estimated at the census-block level using household counts and average glass-generation rates, and user access is represented through distance-based disutilities. We assume that users may leave glass outside the bins when these are full, reflecting the formation of micro-landfills. The model is applied to a real case in Estación Central, Santiago, Chile. In the case study, we evaluate the current configuration in terms of expected glass capture and overflow, solve the model to optimally relocate the existing bins without adding infrastructure, and conduct a sensitivity analysis by varying the number of bins. Results show that relocating existing bins can raise weekly recycling by about five metric tonnes and completely eliminate overflow without new infrastructure. Configurations with fewer bins also achieve high recycling while keeping expected overflow below 60 kg. These insights can guide local governments in designing more efficient and user-friendly recycling systems.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115360"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039526","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

Critical analysis of literature on landfill gas collection efficiency and its application to emissions estimates 垃圾填埋气体收集效率及其在排放估算中的应用文献的批判性分析

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-29 DOI: 10.1016/j.wasman.2026.115353

Caroline J. Saul , Paul T. Imhoff , Yixuan Wang , Morton A. Barlaz

{"title":"Critical analysis of literature on landfill gas collection efficiency and its application to emissions estimates","authors":"Caroline J. Saul , Paul T. Imhoff , Yixuan Wang , Morton A. Barlaz","doi":"10.1016/j.wasman.2026.115353","DOIUrl":"10.1016/j.wasman.2026.115353","url":null,"abstract":"<div><div>Landfills are considered the third largest source of anthropogenic methane emissions in the U.S. and there is considerable interest in estimating emissions from individual landfills. Collection efficiency (CE) or methane collection index (MCI) is used in models to estimate emissions. The objective of this review is to critically analyze literature describing measured CEs and MCIs. Reported values ranged from 14 to 95% for intermediate covers and 53–100% for final covers. Many factors contribute to the ranges including: covers were classified as intermediate or final which is overly simplistic; variability in operational factors (e.g., well coverage, maintenance quality); waste characteristics such as age, composition, and mass in place which influence methane generation and likely collection; and uncertainty in emissions measurements and sometimes collected methane. A desired outcome of this review was to recommend values or ranges for intermediate and final covers that could be used in methane emissions models as applied to U.S. landfills. Such a recommendation is difficult considering the ranges reported in the literature and numerous site-specific factors that influence methane collection. Ultimately, each reported measurement is valid for a specific landfill at a specific time. Models that relate cover type and operational variables to MCI would best support estimation of a site-specific MCI, but such models are not available. Based on this review, the authors do not recommend a specific value for the MCI for an intermediate or final cover but rather expect the operator to select a value considering factors applicable to their landfill and the information presented here.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115353"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080096","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

Alkaline hydrothermal valorization of gold tailings into hydrophobic silica aerogels and FAU zeolite 金尾矿碱性水热活化制备疏水二氧化硅气凝胶和FAU沸石。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-02-02 DOI: 10.1016/j.wasman.2026.115394

Daokui Yang , Guangshuo Wei , Jiazheng Zhang , Ruiqiang Zhao , Yunfei Wang , Jingwei Li , Xujiang Wang , Wenlong Wang , Yanpeng Mao

{"title":"Alkaline hydrothermal valorization of gold tailings into hydrophobic silica aerogels and FAU zeolite","authors":"Daokui Yang , Guangshuo Wei , Jiazheng Zhang , Ruiqiang Zhao , Yunfei Wang , Jingwei Li , Xujiang Wang , Wenlong Wang , Yanpeng Mao","doi":"10.1016/j.wasman.2026.115394","DOIUrl":"10.1016/j.wasman.2026.115394","url":null,"abstract":"<div><div>The large-scale accumulation of gold tailings (GT) poses significant threats to ecological systems and human health, while existing resource recovery strategies remain limited by low value-added outputs. This study aims to valorize GT into high-value products via an alkaline hydrothermal process, achieving comprehensive utilization of all components. The liquid-phase product, GT-derived silica source, was employed to fabricate hydrophobic GT-based silica aerogels (GTSA). Systematic characterization was conducted to elucidate the chemical structure evolution, thermal stability, hydrophobicity, pore characteristics, and microscopic morphology of GTSA under varying hydrophobic modifiers dosages. The results revealed that surface modification led to partially replaced of Si–OH groups with Si–CH<sub>3</sub> groups in GT-based silica aerogels, facilitating the transition from hydrophilicity to hydrophobicity. During modification, the GT-based silica aerogels transformed from densely aggregated large particles into uniformly distributed nanoparticles, forming a well-dispersed porous network. The solid-phase hydrothermal product—GT-based FAU zeolite (GTFZ)—was applied for the adsorption of Cu<sup>2+</sup> and Zn<sup>2+</sup> from wastewater. GTFZ exhibited comparable adsorption behavior toward both metal ions, with adsorption mechanisms involving electrostatic attraction, ion exchange, and surface complexation. Overall, this work presents a sustainable and efficient strategy for the high-value and full-component utilization of GT, providing a feasible pathway for the green synthesis of porous materials from high-silica solid wastes.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115394"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146114379","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

A simple method for preparing novel biochar with Fe–N bonds and porous structure: Towards phosphate adsorption 一种制备具有Fe-N键和多孔结构的新型生物炭的简单方法：面向磷酸盐吸附

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-22 DOI: 10.1016/j.wasman.2026.115361

Quanfeng Wang , Yang Xiao , Jiufang Qi , Haoxuan Wei , Guoming Zeng , Demin Yang , Xiaoling Lei , Yuanyuan Huang

{"title":"A simple method for preparing novel biochar with Fe–N bonds and porous structure: Towards phosphate adsorption","authors":"Quanfeng Wang , Yang Xiao , Jiufang Qi , Haoxuan Wei , Guoming Zeng , Demin Yang , Xiaoling Lei , Yuanyuan Huang","doi":"10.1016/j.wasman.2026.115361","DOIUrl":"10.1016/j.wasman.2026.115361","url":null,"abstract":"<div><div>In this study, a magnetic iron–nitrogen co-doped adsorbent (Fe/N-KBC) with a high specific surface area was successfully prepared through the simple co-pyrolysis of municipal sludge and modifiers (potassium ferrate, urea, and potassium chloride). The activation effect of K<sup>+</sup> ions effectively enhanced the pore structure, while co-doping with iron and nitrogen facilitated the formation of Fe–N bonds, thereby improving both the adsorption rate and selectivity for phosphate. It exhibited a magnetic saturation value of 16.37 emu/g, enabling convenient magnetic separation. Even in the presence of coexisting ions, the phosphate removal efficiency remained above 81.62 %. Moreover, the Fe–N bonds significantly suppressed iron leaching, with the maximum Fe ion concentration measured at only 0.019 mg/L, ensuring excellent adsorption stability. Compared to other adsorbents analyzed in this study, Fe/N-KBC demonstrated both the highest adsorption capacity and the fastest adsorption kinetics. The adsorbent maintained full regenerability and could be reused for at least four cycles with minimal performance loss. In a continuous flow column test, Fe/N-KBC effectively treated approximately 590 bed volumes (BV) of phosphate-containing wastewater. The main adsorption mechanism was attributed to Fe–N coordination bonding, accompanied by electrostatic attraction, π–π interactions, hydrogen bonding and pore filling. Hydroponic experiments using mung beans confirmed the low biotoxicity of adsorbents, and the saturated material could be directly repurposed as a phosphate fertilizer. Overall, this work proposes a promising strategy for the simultaneous regulation of adsorption rate and selectivity and offers a facile adsorbent material for efficient phosphorus recovery and resource reutilization.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115361"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039527","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

Strategic purification and activation of waste-tire-derived pyrolytic carbon black for enhanced natural rubber reinforcement: Mechanistic insights and practical considerations 用于增强天然橡胶增强的废轮胎衍生热解炭黑的战略纯化和活化：机理见解和实际考虑

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-23 DOI: 10.1016/j.wasman.2026.115358

Longfei Xie , Ping Zhou , Xiaoyan Chen , Pei-Gao Duan

{"title":"Strategic purification and activation of waste-tire-derived pyrolytic carbon black for enhanced natural rubber reinforcement: Mechanistic insights and practical considerations","authors":"Longfei Xie , Ping Zhou , Xiaoyan Chen , Pei-Gao Duan","doi":"10.1016/j.wasman.2026.115358","DOIUrl":"10.1016/j.wasman.2026.115358","url":null,"abstract":"<div><div>This study systematically investigated the reinforcement mechanisms of waste-tire-derived pyrolytic carbon black (CBp) in natural rubber (NR) composites at the component level through controlled demineralization strategies and modification treatments. This study identifies three main findings. First, SiO<sub>2</sub> acts as a rigid structural skeleton that improves filler polarity and interfacial bonding, increasing the tensile strength by 16.8% (21.39 MPa) and the modulus M300 by 9.77 MPa. Second, ZnS negatively impacts composite performance by inducing stress concentration and weakening adhesion; its removal markedly improves the mechanical strength. Third, KOH activation increases the mesopore surface area from 36.27 to 45.69 m<sup>2</sup>/g, but this benefit is realized only when KOH activation is combined with SiO<sub>2</sub> retention, resulting in optimal mechanical properties (22.17 MPa tensile, 10.48 MPa M300). This work delineates component-level reinforcement contributions, demonstrating that purified CBp with retained SiO<sub>2</sub> exhibits performance comparable to that of fossil-derived carbon black (CB), whereas ZnS-free CBp-ZK shows superior dynamic mechanical properties (e.g., a reduced Payne effect). These findings advance the high-value utilization of CBp as a sustainable reinforcing filler, addressing critical gaps in waste tire pyrolysis product applications. This study further highlights the dual role of inorganic components, with SiO<sub>2</sub> enhancing compatibility and ZnS impairing interfacial bonding, providing a foundation for industrial-scale CBp modification strategies.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115358"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039525","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

Valorization of hazelnut shell waste biomass into sustainable carbons for energy storage applications 榛子壳废弃生物质转化为可持续碳的储能应用

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-29 DOI: 10.1016/j.wasman.2026.115363

Stefania Volante , Rif Atussaufiyah , Federico Maria Vivaldi , Pietro Zaccagnini , Mara Serrapede , Andrea Lamberti , Anna Maria Raspolli Galletti , Federico Bella , Fabio Di Francesco , Domenico Licursi , Claudia Antonetti

{"title":"Valorization of hazelnut shell waste biomass into sustainable carbons for energy storage applications","authors":"Stefania Volante , Rif Atussaufiyah , Federico Maria Vivaldi , Pietro Zaccagnini , Mara Serrapede , Andrea Lamberti , Anna Maria Raspolli Galletti , Federico Bella , Fabio Di Francesco , Domenico Licursi , Claudia Antonetti","doi":"10.1016/j.wasman.2026.115363","DOIUrl":"10.1016/j.wasman.2026.115363","url":null,"abstract":"<div><div>In the last decades, the use of biochar has been receiving increasing attention for the development of electrochemical energy storage devices. In this work, the waste hazelnut shell biomass, a low cost and abundant agriculture residue within our territory, was valorized as feedstock for the synthesis of alkali-derived activated carbons, which were properly characterized and electrochemically tested, in the perspective of their use as new electrode material in energy storage applications. Two activated carbons have been identified as promising materials for this application and their electrochemical performances were further improved by including a doping step with copper (I) oxide, achieving the best specific capacitance of 123 F/g. Moreover, one of the two most promising activated carbons was tested in an EDLC symmetric device outperforming, at low power rates, reference materials in terms of specific energy density, reaching the value up to 40 Wh/kg, due to its remarkable specific capacitance of 55 F/g. In summary, this work proposes a sustainable and low energy demanding approach to transform waste biomasses into high value activated carbon materials for energy storage applications. The strategy not only promotes the reuse and valorization of hazelnut shell waste biomass, but it also supports a circular model with promising environmental and economic advantages.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115363"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080091","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

Municipal solid waste incineration state recognition system based on deep convolutional stochastic configuration machine 基于深度卷积随机配置机的城市生活垃圾焚烧状态识别系统

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-28 Epub Date: 2026-01-29 DOI: 10.1016/j.wasman.2026.115383

Jiankang Yang , Weitao Li , Jian Tang , Wei Sun , Qiyue Li

{"title":"Municipal solid waste incineration state recognition system based on deep convolutional stochastic configuration machine","authors":"Jiankang Yang , Weitao Li , Jian Tang , Wei Sun , Qiyue Li","doi":"10.1016/j.wasman.2026.115383","DOIUrl":"10.1016/j.wasman.2026.115383","url":null,"abstract":"<div><div>To address the fluctuating combustion caused by the complex and variable composition of municipal solid waste incineration (MSWI), this paper proposes a state recognition system for MSWI based on a deep convolutional stochastic configuration machine (DCSCM). The system consists of high-temperature cameras, a network switch, an industrial control computer, and a server, which employs DCSCM for intelligent assessment of combustion states. The DCSCM simulated expert prior knowledge via a linear predictive basis model, incrementally constructed convolutional structure, and incorporated an adaptive optimization mechanism based on error feedback. The mechanism dynamically evaluated the model convergence and enabled adaptive construction of model width and depth before convolutional kernels were populated. The results demonstrated that the trained DCSCM achieved a parameter size of 376 KB and a recognition accuracy of 97.32%, with its operational deployment and self-optimization in complex environments improving the average accuracy by 1.20%. The study provides support for precise combustion parameter control in MSWI, enabling automated monitoring of combustion states and reduced pollutant emissions.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"213 ","pages":"Article 115383"},"PeriodicalIF":7.1,"publicationDate":"2026-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146080092","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