Waste management最新文献_第5页

Synergistic and efficient leaching of valuable metals from spent NCM cathodes using a novel chlorine-free acidic deep eutectic solvent 利用一种新型无氯酸性深共晶溶剂从废NCM阴极中协同高效浸出有价金属

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-22 DOI: 10.1016/j.wasman.2026.115355

Maoting Yu , Chengping Li , Ailin Xu , Bo Li , Yushu Wu , Boyue Dong , Zhaohui Zheng , Jinsong Wang , Yingjie Zhang , Peng Dong , Chongjun Bao , Zhengfu Zhang

{"title":"Synergistic and efficient leaching of valuable metals from spent NCM cathodes using a novel chlorine-free acidic deep eutectic solvent","authors":"Maoting Yu , Chengping Li , Ailin Xu , Bo Li , Yushu Wu , Boyue Dong , Zhaohui Zheng , Jinsong Wang , Yingjie Zhang , Peng Dong , Chongjun Bao , Zhengfu Zhang","doi":"10.1016/j.wasman.2026.115355","DOIUrl":"10.1016/j.wasman.2026.115355","url":null,"abstract":"<div><div>The rapid expansion of electric vehicles has driven a surge in end-of-life lithium-ion batteries (LIBs). Conventional hydrometallurgical recycling, dependent on strong inorganic acids and chloride-containing reagents, induces severe secondary pollution and equipment corrosion. Although deep eutectic solvents (DESs) are extensively explored as green alternatives, mainstream chloride salt-acid systems persistently risk chlorine contamination, necessitating inherently safe chloride-free alternatives. This study developed a novel chloride-free DES with excellent recyclability using trimethylglycine (TMG) and glycolic acid (GA). Response surface methodology (RSM) optimization yielded optimal leaching conditions: 1.95 h, TMG:GA molar ratio of 1:3.2, S/L of 20 g/L, and 99 °C. Under these conditions, unprecedented leaching efficiencies (>99%) for Li, Ni, Co, and Mn from spent LiNi<sub>1/3</sub>Co<sub>1/3</sub>Mn<sub>1/3</sub>O<sub>2</sub> (NCM111) were achieved, with demonstrated universality across multiple cathode configurations (>94%). The kinetic study showed that the leaching process is governed by surface chemical reaction, with activation energies of 33.19/42.61/40.50/37.38 kJ mol<sup>-1</sup> for Li/Ni/Co/Mn. Density functional theory (DFT) calculations unveiled that the DES disrupts metal–oxygen (M−O) bonds via a synergistic reductive-chelation mechanism, where binding energies followed Mn > Co > Ni. This work offers a promising approach for recycling spent batteries with its environmental friendliness, high efficiency, broad applicability, and in-depth mechanism.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115355"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146023578","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

Parametrization of biowaste composting system for life cycle assessment 生物垃圾堆肥系统生命周期评价的参数化

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-15 DOI: 10.1016/j.wasman.2026.115337

Nomena Ravoahangy , Guillaume Majeau-Bettez , Olivier Schoefs

{"title":"Parametrization of biowaste composting system for life cycle assessment","authors":"Nomena Ravoahangy , Guillaume Majeau-Bettez , Olivier Schoefs","doi":"10.1016/j.wasman.2026.115337","DOIUrl":"10.1016/j.wasman.2026.115337","url":null,"abstract":"<div><div>Composting is a widely used method for managing and valorizing biowaste. Life cycle assessment (LCA) is commonly applied to evaluate its environmental impacts. Current methods used to model life cycle inventories often oversimplify the complex physical, chemical, and biological processes involved. This study introduces the Parametrized Composting Tool for Environmental Assessment (PaCTEA), developed to better capture the influence of biowaste composition variability and operational parameters on composting environmental impacts. PaCTEA integrates a composting model that predicts direct emissions of CO<sub>2</sub>, NH<sub>3</sub>, CH<sub>4</sub>, and N<sub>2</sub>O, as well as the nutrient composition of the resulting compost. This detailed characterization enables a more accurate estimation of the potential substitution of fertilizers and peat. Even though the core of PaCTEA is a complex chemical engineering model, it is linked to a simple parametrization based on operational parameters. To demonstrate its functionality, simulations were performed to assess the influence of biowaste composition, aeration mode, and ambient temperature on the environmental performance of composting. The LCA results show clear differences between scenarios. Variations in biowaste composition reduced ecosystem quality and natural resource impacts by up to 29% and 52%, and increased human health benefits by nearly 9%. Passive aeration outperformed active aeration, improving ecosystem quality by up to 175% and human health benefits by 35%, while reducing natural resource impacts by 50%. Composting at 5°C increased ecosystem quality and resource impacts by up to 32% and 7%, and reduced human health benefits by about 5% compared to 25°C.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115337"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979093","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

Advancing mechanical recycling of polypropylene: lessons from sorting, washing, and life cycle assessment 推进聚丙烯机械回收：分类、洗涤和生命周期评估的经验教训。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-20 DOI: 10.1016/j.wasman.2026.115356

Moritz Mager , Lukas Zeilerbauer , Alexander Felgel-Farnholz , Sandra Czaker , Jörg Fischer , Sander H.J. Postema , Johann B. Kasper , Marcel C.P. van Eijk

{"title":"Advancing mechanical recycling of polypropylene: lessons from sorting, washing, and life cycle assessment","authors":"Moritz Mager , Lukas Zeilerbauer , Alexander Felgel-Farnholz , Sandra Czaker , Jörg Fischer , Sander H.J. Postema , Johann B. Kasper , Marcel C.P. van Eijk","doi":"10.1016/j.wasman.2026.115356","DOIUrl":"10.1016/j.wasman.2026.115356","url":null,"abstract":"<div><div>European legislation, particularly the Packaging and Packaging Waste Regulation (PPWR), is rapidly increasing the demand for high-quality recycled polypropylene (PP) in packaging applications. Achieving such qualities through mechanical recycling remains challenging due to the heterogeneity of post-consumer waste, while the role of intensified washing in the overall decontamination remains debated. This study evaluates the influence of additional sorting and washing intensity on material properties, product performance, and environmental impacts in mechanical recycling of Dutch post-consumer rigid PP. White, clear, and colored fractions were processed under cold and hot wash conditions, extruded, and converted into cups by injection molding and thermoforming. Sorting effectively reduced feedstock heterogeneity, while hot washing slightly improved oxidation stability and ductility. Cup testing showed that the investigated recyclates achieved 77–88 % of virgin polypropylene top load performance. Hot washing removed surface contamination but did not significantly reduce volatile organic compounds or migration levels. A Life cycle assessment (LCA) was performed in openLCA using Ecoinvent background data. The results showed that advanced mechanical recycling, despite higher energy and chemical demand, remained environmentally advantageous, achieving significantly lower climate change impacts compared to virgin PP. However, the recyclate substitution rate in final products was identified as the dominant driver of environmental benefits. Overall, maximizing substitution and sorting efficiency proved more effective for achieving sustainable, high-quality PP recycling than intensifying washing.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115356"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146019853","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

Does human excreta fertilization increase pathogen contamination in sandy soils? 人类排泄物施肥会增加沙质土壤中的病原体污染吗？

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2025-12-30 DOI: 10.1016/j.wasman.2025.115314

Jan-Ole Boness , Timo Kautz , Bärbel Kroschewski , Roland Hoffmann-Bahnsen

{"title":"Does human excreta fertilization increase pathogen contamination in sandy soils?","authors":"Jan-Ole Boness , Timo Kautz , Bärbel Kroschewski , Roland Hoffmann-Bahnsen","doi":"10.1016/j.wasman.2025.115314","DOIUrl":"10.1016/j.wasman.2025.115314","url":null,"abstract":"<div><div>The use of human excreta in the context of the circular economy has the potential to recycle nutrients, save water and energy, and sequester carbon. However, the risk of pathogen contamination of soil and crops, particularly from land application of solid human excreta (feces), is a realistic scenario. In our study we investigated a double thermophilically treated and quality assured compost (Hygienized Human Feces Compost). We used indicator organisms for fecal contamination to monitor the risk of pathogen contamination of the soil after application of human feces compost. Indicator organisms were <em>Escherichia coli</em>, <em>Salmonella</em> spp., <em>Enterococcus</em> spp. and <em>Clostridium perfringens</em>. One pot experiment under semi-controlled conditions and three on-farm experiments were conducted on loamy sand and sand soils. The experimental period ranged from 58 to 1123 days. The levels of fecal indicator organisms in soil show a consistent pattern across all experiments. <em>E. coli</em>, <em>Salmonella</em> spp. and <em>Enterococcus</em> spp. were not detected in any of the soil samples. <em>C. perfringens</em> was found in concentrations ranging from <10 to 10<sup>3</sup> CFU g<sup>−1</sup> FM. However, there was no evidence of a systematic increase in the soil concentrations of <em>C. perfringens</em> following human feces compost application. In different years and under different experimental conditions, we were not able to detect any increase in the concentration of indicator organisms for fecal contamination in our experiments. We therefore assume that sandy soils might be generally suitable for application of quality-assured fertilizers from human excreta.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115314"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145852456","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

Spent LiFePO4 batteries valorization: integrated process for battery-grade FePO4 production 废LiFePO4电池增值：电池级FePO4生产的集成工艺

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-07 DOI: 10.1016/j.wasman.2026.115335

Jiawei Du, Jialin Qing, Guiqing Zhang, Zuoying Cao, Qinggang Li, Mingyu Wang, Wenjuan Guan, Shengxi Wu, Xinsheng Wu

引用次数: 0

Role of typical amino acids on structural evolution of hydrochar and nitrogen transformation mechanisms during hydrothermal carbonization of kitchen waste 餐厨垃圾水热炭化过程中典型氨基酸对碳氢化合物结构演化的作用及氮转化机理

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-07 DOI: 10.1016/j.wasman.2026.115331

Can Zhao , Yudong Nie , Junjie Ai , Ju Ran , Qian Shen

{"title":"Role of typical amino acids on structural evolution of hydrochar and nitrogen transformation mechanisms during hydrothermal carbonization of kitchen waste","authors":"Can Zhao , Yudong Nie , Junjie Ai , Ju Ran , Qian Shen","doi":"10.1016/j.wasman.2026.115331","DOIUrl":"10.1016/j.wasman.2026.115331","url":null,"abstract":"<div><div>The involvement of specific amino acids will inevitably alter the pathways for the transformation of kitchen waste (KW) components during the hydrothermal carbonization (HTC) process. In this study, the evolution of hydrochar structure and nitrogen transformation mechanisms was systematically elucidated for the first time at the amino acid level during the HTC of KW. The results showed that glutamic acid promoted the formation of non-condensable gases, resulting in hydrochar with the loosest pore structure. The hydrolysis products of histidine (particularly the imidazole ring) polymerized with aromatic heterocycles to form stable secondary char, achieving maximum yield (55.40 %) and nitrogen retention rate (65.43 %). Phenylalanine hydrolysates (phenethylamine, styrene) facilitated the dissolution of weakly polar organics from KW and further generated amorphous solids through hydrophobic interactions with long-chain amides and indoles. This led to the hydrochar with the lowest yield (8.77 %) and surface area (0.00 m<sup>2</sup> g<sup>−1</sup>). Furthermore, hydrochar washed with dichloromethane exhibited an improved pore structure but showed reduced practical utilization potential due to its diminished yield (0.28 %), compromised nitrogen retention rate (0.14 %) and decreased defect concentration (indicated by an I<sub>D</sub>/I<sub>G</sub> ratio as low as 1.83). This research provided novel insights into the tailored synthesis of nitrogen-doped carbon materials from complex biowaste.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115331"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928080","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

Selective lithium Pre-Leaching from spent NMC black mass via pyrolysis (Carbothermal thermal Treatment) and controlled leaching 通过热解（碳热热处理）和控制浸出从废NMC黑团中选择性预浸出锂。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-06 DOI: 10.1016/j.wasman.2026.115339

Amir Hossein Mohammad Zadeh , Spencer Cunnigham , Devon Gray , Sevan Bedrossian , Baian Almusned , Jeffrey Daniel Henderson , Gisele Azimi

{"title":"Selective lithium Pre-Leaching from spent NMC black mass via pyrolysis (Carbothermal thermal Treatment) and controlled leaching","authors":"Amir Hossein Mohammad Zadeh , Spencer Cunnigham , Devon Gray , Sevan Bedrossian , Baian Almusned , Jeffrey Daniel Henderson , Gisele Azimi","doi":"10.1016/j.wasman.2026.115339","DOIUrl":"10.1016/j.wasman.2026.115339","url":null,"abstract":"<div><div>The rapid expansion of lithium-ion battery usage has intensified the need for efficient and economically viable recycling processes capable of selectively recovering lithium from spent cathode materials. Here, we develop and mechanistically evaluate a simplified, reductant-free pyrolysis–leaching route for lithium pre-extraction from NMC-type black mass. Carbothermal reduction (pyrolysis) was conducted at 550–630 °C for 60 min under nitrogen using only the inherent carbon content of the black mass as the reducing agent. Comprehensive characterization, including XRD, Raman spectroscopy, SEM-EDX, ToF-SIMS, and TC/TOC, revealed that carbothermal reduction induces a sequence of phase transformations: (i) decomposition of PVDF and organics to form reactive pyrolytic carbon; (ii) collapse of the NMC layered structure; (iii) carbothermal reduction of Ni and Co oxides; and (iv) formation of water-leachable Li<sub>2</sub>CO<sub>3</sub>/Li<sub>2</sub>O. These modifications increase lithium accessibility while stabilizing transition metals as Ni⁰, Co⁰/CoO, and MnO, enabling selective lithium dissolution at near-neutral pH. Leaching experiments showed that untreated black mass achieves only 21 % Li recovery at pH around 7, whereas pyrolyzed material yields ∼ 63 % Li recovery at the same pH, with < 1–6 % dissolution of Ni, Co, and Mn. This high selectivity eliminates the need for strong acids, reduces impurity load, and preserves transition-metal phases for downstream hydrometallurgical or regeneration processes. A technoeconomic comparison with two representative literature routes demonstrates that the proposed process offers the lowest energy consumption, reagent use, and purification burden, owing to its low-temperature operation, reductant-free design, and minimal chemical inputs.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115339"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145918596","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

Earthworm mediated microbial quorum sensing accelerates organic matter transformation during vermicomposting of dewatered sludge 蚯蚓介导的微生物群体感应加速了脱水污泥蚯蚓堆肥过程中有机物的转化。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.wasman.2026.115332

Jungang Ding , Tianzhen Guo , Hui Xia , Kui Huang , Mingte Li , Fusheng Li

{"title":"Earthworm mediated microbial quorum sensing accelerates organic matter transformation during vermicomposting of dewatered sludge","authors":"Jungang Ding , Tianzhen Guo , Hui Xia , Kui Huang , Mingte Li , Fusheng Li","doi":"10.1016/j.wasman.2026.115332","DOIUrl":"10.1016/j.wasman.2026.115332","url":null,"abstract":"<div><div>Vermicomposting (VC) relies on the synergistic interaction between earthworms and microorganisms to drive the degradation of organic matter (OM). Quorum sensing (QS), which governs earthworm-microorganism interactions, may influence dissolved organic matter (DOM) transformation during VC. However, the presence of QS and the functional roles of signaling molecules during VC remain unclear. This study investigated earthworm mediated microbial QS in driving microbial community succession and accelerating DOM transformation during VC, by contrasting the process without earthworms. The results showed that VC exhibited a distinct decomposition pathway, achieving significantly faster DOM degradation and mineralization (<em>P</em> < 0.01), compared to the control. Additionally, earthworms markedly facilitated the transformation of protein-like compounds into humic-like substances over a shorter period. Their presence also modified acyl-homoserine lactone (AHL) synthesis patterns and suppressed AHLs hydrolysis, resulting in a 96.14 % increase (<em>P</em> < 0.01) in short-chain AHLs. Metagenomic analysis revealed that earthworm in VC significantly altered the bacterial diversity (<em>P</em> < 0.05), enriching modularity coefficient and deterministic processes by 18.75 % and 87.03 %, respectively. Finally, AHL-responsive microorganisms significantly influencing physicochemical and DOM transformation during the VC. This study suggests that earthworms enhance AHL-type QS regulation in microbial communities, improving their metabolic functions and accelerating DOM transformation.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115332"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145913180","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

Machine learning based prediction of mechanical properties in carbon fiber recovered through pyrolysis 基于机器学习的热解回收碳纤维力学性能预测。

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-18 DOI: 10.1016/j.wasman.2026.115347

Xiang Guo , Tian Li , Chunting Liu , Meng Zhang , Hao Li , Jinrui Li , Yihua Zhang , Chunmei Zeng , Shuwu Wei , Linlin Pei , Fang Liu , Da Chen

{"title":"Machine learning based prediction of mechanical properties in carbon fiber recovered through pyrolysis","authors":"Xiang Guo , Tian Li , Chunting Liu , Meng Zhang , Hao Li , Jinrui Li , Yihua Zhang , Chunmei Zeng , Shuwu Wei , Linlin Pei , Fang Liu , Da Chen","doi":"10.1016/j.wasman.2026.115347","DOIUrl":"10.1016/j.wasman.2026.115347","url":null,"abstract":"<div><div>The limitations of traditional pyrolysis technologies of recovered carbon fiber included long processing time, low efficiency, and unclear links between process parameters and performance. Moreover, pyrolysis alone formed residual coke on carbon fiber surfaces, severely impairing reusability. Therefore, this study adopted a combination of pyrolysis oxidation recycling to obtain clean carbon fibers, and introduced an innovative machine learning optimization framework to predict and analyze key recycling parameters. Specifically, a database of raw material characteristics and process parameters was built via systematic literature research. Subsequently, four machine learning models were integrated to predict mechanical performance, and the random forest model performed the best with determination coefficients of 0.9608 and 0.9419, respectively. Additionally, partial dependency graph analysis quantified the process window and determined the optimal parameters. Optimal tensile modulus was attained with a 5 ℃/min pyrolysis rate, 570 ℃ oxidation temperature, and 45%-75% carbon fiber mass fraction. For tensile strength, the best parameters were 557 ℃ oxidation temperature and 45 mins oxidation time. A 5 ℃/min pyrolysis rate stabilized tensile modulus, while 500 ℃ preserved tensile strength. Additionally, 75 wt% carbon content combined with high fiber mass fraction enhanced mechanical performance. The foundation was laid for subsequent pyrolysis‑oxidation experiments on carbon‑fiber recovery, and the recovery efficiency was improved. Overall, this study can provide more accurate theoretical support for carbon fiber recycling technology.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115347"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146004289","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

Effect of seasonal variability on aerobic biostabilisation kinetics of mechanically pre-treated organic fraction municipal solid waste 季节变化对机械预处理有机部分城市生活垃圾好氧生物稳定动力学的影响

IF 7.1 2区环境科学与生态学

Waste management Pub Date : 2026-02-01 Epub Date: 2026-01-08 DOI: 10.1016/j.wasman.2026.115336

Vladimir Mironov , Egor Barvashov , Shenghua Zhang , Sofia Telegina , Ang Li

{"title":"Effect of seasonal variability on aerobic biostabilisation kinetics of mechanically pre-treated organic fraction municipal solid waste","authors":"Vladimir Mironov , Egor Barvashov , Shenghua Zhang , Sofia Telegina , Ang Li","doi":"10.1016/j.wasman.2026.115336","DOIUrl":"10.1016/j.wasman.2026.115336","url":null,"abstract":"<div><div>This study investigates how seasonal variations in the composition and properties of the mechanically sorted organic fraction of municipal solid waste (ms-OFMSW) affect the rate of aerobic biostabilisation. A one-year study, monthly samples of raw ms-OFMSW were taken from a full-scale mechanical–biological treatment plant and tested for morphological composition, physicochemical parameters, and respiratory activity under conditions of 14-day pilot-scale biostabilisation process. Results showed that a maximum microbial activity estimated from an oxygen uptake rate of 1381 ± 164 mg O<sub>2</sub> kg<sup>−1</sup> DM h<sup>−1</sup> and heat emission of 8609 ± 1370 J kg<sup>−1</sup> h<sup>−1</sup>, was observed within the first 10 ± 2h at 39.8 ± 0.8 °C. In spring and summer, the rate of biodegradation decreased by more than half due to low pH (5.3–5.5) and a high proportion of paper and fine fractions, which led to the accumulation of thermal energy (up to 146.8 kJ kg<sup>−1</sup>) and a decrease in oxygen uptake (up to 33.7 g O<sub>2</sub> kg<sup>−1</sup>). In contrast, higher shares of yard waste in autumn (23.2 %) and food waste in winter (29.9 %) created favorable conditions with moderate pH (5.7–6.1), temperatures of 62–68 °C, and elevated oxygen uptake (77.8–90.1 g O<sub>2</sub> kg<sup>−1</sup>). These findings highlight the importance of operational control of the properties of raw ms-OFMSW for the possibility of predicting biostabilisation and developing methods for adaptive process control.</div></div>","PeriodicalId":23969,"journal":{"name":"Waste management","volume":"212 ","pages":"Article 115336"},"PeriodicalIF":7.1,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145927999","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