Resources Conservation and Recycling最新文献

{"title":"Clean heating, cleaner cities: The effect of northern winter clean heating policy on carbon emission reduction and pollution reduction in China","authors":"Qingshen Kong ,&nbsp;Yi Xiao ,&nbsp;Haonan Yang ,&nbsp;Huan Huang","doi":"10.1016/j.resconrec.2025.108762","DOIUrl":"10.1016/j.resconrec.2025.108762","url":null,"abstract":"<div><div>Coal-burning heating in China has long contributed to severe air pollution and high energy consumption. China launched the Northern Clean Heating Policy (CHPP) in 2017 to promote a shift to clean energy for heating. Using a multi-period DID model with panel data from 2014 to 2022, this study assesses the impact of CHPP on carbon emission intensity (CEI) and sulfur dioxide emission intensity (SEI). Results show that CHPP significantly reduces CEI and SEI. Four mediating variables, including total and average levels of government environmental attention and clean energy consumption, play key roles in the effectiveness of the policy. The effect is more notable in cities with higher temperatures, lower resource dependence, lower energy consumption, classification in the second pilot wave, key governance regions, and dispersed spatial layouts. As a sustainable development strategy, CHPP promotes green development through clean heating, providing valuable practical references for global environmental protection and the sustainable energy transition.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108762"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Upcycling anaerobic digestion methane to single-cell protein as a low-carbon strategy","authors":"Pan-Long Lv ,&nbsp;Qing-Rui Hu ,&nbsp;Yu-Yang Hu ,&nbsp;Wenjing Gong ,&nbsp;Qian Li ,&nbsp;Rong Chen","doi":"10.1016/j.resconrec.2025.108731","DOIUrl":"10.1016/j.resconrec.2025.108731","url":null,"abstract":"<div><div>Anaerobic digestion of organic waste generates substantial amounts of dissolved methane (CH₄) and nitrogen source, presenting both environmental challenges and opportunities for resource recovery. This study produces single-cell protein (SCP) by utilizing CH₄ as carbon sources in a CH₄-based membrane biofilm reactor (MBfR). Over 270 days of continuous operation, the reactor achieved highly efficient nitrogen removal and SCP production. Results demonstrated that nitrate was a more effective nitrogen source than ammonia for SCP synthesis, achieving SCP yields of 3.3 g/g N and 1.2 g/g CH₄ with protein content exceeding 50%. The addition of acetate alleviated ammonia inhibition, and increased SCP yield to 5.7 g/g N. Metagenomic analysis identified <em>Methylocystis</em> played key roles in methane oxidation and SCP biosynthesis. Life cycle assessment revealed a carbon footprint of 1.25 kg CO₂-eq/kg for CH₄-based SCP. Using CH₄ from waste anaerobic digestate avoided 10.2 kg CO₂-eq/kg emissions.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108731"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145683381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Ecological comparison of wastewater pipe rehabilitation with glass fiber liners compared to replacement with new concrete pipes in Germany","authors":"Jan Blömer,&nbsp;Daniel Maga","doi":"10.1016/j.resconrec.2025.108748","DOIUrl":"10.1016/j.resconrec.2025.108748","url":null,"abstract":"<div><div>In Germany hundreds of thousands of kilometers of wastewater pipes will need to be modernized in the near future. Two upkeeping approaches are compared by using a cradle-to-grave life cycle assessment: trenchless rehabilitation with cured-in-place glass fiber liners versus open-trench replacement with concrete or reinforced concrete pipes. Due to the very long service life of over 50 years, estimates are made for end-of-life treatment. Thermal recycling in a cement plant is assumed optimal for the disposal of glass-fiber liners. However, the end-of-life treatment of the liners is of minor environmental importance compared to the installation efforts of concrete pipes. The analysis shows some environmental advantages for glass liners in the production stage but major advantages in the installation stage, depending on the actual installation conditions. Overall, the rehabilitation by liners shows obvious environmental advantages over the replacement of wastewater pipes.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108748"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145785189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Assessing spatial variation in carbon stocks across China’s wetland ecosystems","authors":"Bo Peng ,&nbsp;Zhiyong Zhou ,&nbsp;Li Xu ,&nbsp;Nianpeng He","doi":"10.1016/j.resconrec.2025.108763","DOIUrl":"10.1016/j.resconrec.2025.108763","url":null,"abstract":"<div><div>China’s wetlands store substantial carbon in vegetation and soils,yet depth-resolved estimates remain inconsistent. Using 18,798 field records (2000–2023), we integrated vegetation and soil data at 20–cm intervals (0–100 cm) to map carbon stocks nationwide. Combining climate, soil, vegetation and topography, a Random Forest model produced spatial estimates of vegetation carbon (aboveground 385.4 Tg C; belowground 662.26 Tg C; total 1047.66 ± 437 Tg C) and soil carbon (0–100 cm: 8336.51 ± 1216 Tg C). Climate and topography dominated spatial variability, while performance was higher for the aboveground than for the deeper soil layers. These maps can be used to identify priority regions for conservation and hydrological restoration, providing actionable baselines for wetland carbon management and China’s mitigation targets.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108763"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145823269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"How accurate are LCAs for pyrolysis and gasification in the context of plastic waste management?","authors":"Tu Xayachak ,&nbsp;Nawshad Haque ,&nbsp;Deborah Lau ,&nbsp;Raj Parthasarathy ,&nbsp;Nargessadat Emami ,&nbsp;Biplob Kumar Pramanik","doi":"10.1016/j.resconrec.2025.108764","DOIUrl":"10.1016/j.resconrec.2025.108764","url":null,"abstract":"<div><div>Pyrolysis and gasification are often presented in the life cycle assessment (LCA) literature as environmentally promising solutions for plastic waste management. However, the lack of validated large-scale inventory data and limited use of uncertainty/statistical analysis cast doubts on the findings. This study aims to investigate the validity of these conclusions by modelling LCA for pyrolysis (PYR) and gasification (GASI) using two data sources: Aspen-generated data (ASP) and aggregated literature data (LIT). The novelty of this study lies in applying uncertainty propagation tailored to each source, enabling systematic evaluation of result variability. Using a functional unit of 1 kg mixed polyolefin (MPO) waste treated, our results show that Aspen-based scenarios exhibit narrower uncertainty ranges than their literature-based counterparts. For instance, the variability in terms of global warming potential for PYRO (ASP) ranged from 0.751 to 1.53 kg CO₂ eq/kg MPO waste treated, whereas that of PYRO (LIT) ranged from 1.24 to 6.51 kg CO₂ eq/kg MPO waste treated. Similarly, GASI (ASP) had a more constrained 95 % confidence interval (from 2.56 to 4.97 kg CO₂ eq/kg MPO waste treated) compared to that of GASI (LIT), which spanned from 2.20 to 15.58 kg CO₂ eq/kg MPO waste treated. Other impact categories, including acidification, freshwater eutrophication, freshwater ecotoxicity, and resource depletion, also showed considerably varied results. These disparities largely stem from many underlying assumptions and simplification during Aspen modelling, leading to reduced number of variables. Conversely, literature-based LCA models are constrained by repeated reuse of data and by inconsistencies in system boundaries, which exacerbate result variability. These issues suggest that the consensus in support of chemical recycling rests on a narrower data foundation than often assumed. As such, we recommend that LCA findings be used as policy reference only when supported by robust case-specific data, and transparent uncertainty analysis. While these findings provide crucial perspective for stakeholders and decision-makers, it is important to note that the methodology applied in this study is limited by various practical factors, including simplification of Aspen modelling and LCA system boundaries, as well as inherent limitations related to data gathering protocol.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108764"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145823270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Revealing the impact of electric vehicles trade restrictions on greenhouse gas emissions and welfare","authors":"Lanxin Zhang ,&nbsp;Zongguo Wen ,&nbsp;Xin Sun ,&nbsp;Yihan Wang ,&nbsp;Tingting Zhang","doi":"10.1016/j.resconrec.2025.108744","DOIUrl":"10.1016/j.resconrec.2025.108744","url":null,"abstract":"<div><div>The global transition to electric vehicles (EV) is essential for decarbonization, yet it is increasingly challenged by a surge in trade restrictions. Existing studies lack a comprehensive impact assessment of EV trade restrictions. This study integrates multi-regional partial equilibrium model with emissions accounting method to quantify greenhouse gas (GHG) emissions and welfare effects under various trade policy scenarios. Our analysis reveals that trade restrictions reduce global EV output values by 0.5 %-2.4 %, especially in export-dependent regions such as South Korea. While bilateral trade restrictions cause moderate global welfare losses (up to US$4.6 billion) and emission increases (up to 2.3 MtCO₂e), global extension substantially exacerbates these impacts, leading to welfare loss of US$18.2 billion and emissions increase of 10.5 MtCO₂e. In contrast, trade liberalization generates significant co-benefits, boosting global welfare by US$26.1 billion and reducing emissions by 31.3 MtCO₂e. The results demonstrate that trade restrictions on EV harm both welfare and climate objectives. This study provides critical quantitative evidence for policymakers to integrate trade and climate strategies for a sustainable EV transition.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108744"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Vegetable yields and environmental impacts vary widely across types, production technologies, and global regions","authors":"Shiyu Cao ,&nbsp;Lu Wang ,&nbsp;Yi Yang","doi":"10.1016/j.resconrec.2025.108735","DOIUrl":"10.1016/j.resconrec.2025.108735","url":null,"abstract":"<div><div>Vegetables are vital for sustainable and healthy diets, but their global environmental footprints remain unclear. This study quantitatively reviews the life-cycle environmental impacts of 13 major vegetables by synthesizing &gt;100 studies. Vegetable yields and environmental impacts vary widely across types, production technologies, and global regions. Median yields and environmental impacts of the most productive vegetable types can exceed those of the least productive types by &gt;40 times and &gt;5 times, respectively (e.g., 356.0 vs. 8.4 t ha⁻¹; 0.86 vs. 0.17 kg CO₂e kg⁻¹). Compared with open-field systems, facility‑grown systems have generally much higher yields (e.g., +548 % for tomato) and lower blue water footprint (e.g., −75 % for lettuce) but higher carbon footprint (e.g., +273 % for tomato) due to energy-intensive operations. Reducing facility carbon footprint requires energy decarbonization and improved irrigation and nutrient management. On average, carbon footprint, blue water footprint, acidification, eutrophication, human toxicity, and land use per kg of vegetables produced are estimated at 0.52 kg CO₂e, 0.08 m³, 2.73 g SO₂e, 2.37 g PO₄³⁻e, 0.14 kg 1,4‑DCBe, and 0.17 m² a. These quantitative benchmarks can support region-specific mitigation prioritization and inform policy and industry decisions for lower-impact vegetable supply chains. Geograpically, the compiled data skew toward Europe, and in terms of environmental impacts, concentrate on carbon footprint, highlighting the need for more diverse regional coverage and inclusion of non-carbon footprints.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108735"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145730845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Quantifying environmental impacts of circular economy approaches through life cycle assessments: A case study in materials science on ceramic matrix composites","authors":"Florian Halter ,&nbsp;Lars Wietschel ,&nbsp;Denny Schüppel ,&nbsp;Nicoletta Narres ,&nbsp;Anna Schneller ,&nbsp;Kevin Christopher Dorling ,&nbsp;Andrea Thorenz ,&nbsp;Dietmar Koch ,&nbsp;Axel Tuma","doi":"10.1016/j.resconrec.2025.108776","DOIUrl":"10.1016/j.resconrec.2025.108776","url":null,"abstract":"<div><div>The circular economy and the use of lightweight composites are two promising concepts for reducing resource consumption in future products. While circular economy approaches close loops and minimize resource loss, the application-specific design of composites reduces material demand. This study combines these concepts by discussing circular economy approaches for the lightweight material class of ceramic matrix composites. Suitable approaches were identified and compared using life cycle assessments to determine the environmental impact reductions. Twenty-two circular economy approaches were identified for the primary processing routes on four different life-cycle stages (circular inputs, external and internal loops, and end-of-life (EoL)). The most significant reduction is achieved by alternative input materials and EoL options, especially by using recycled carbon fibers, followed by various EoL options, such as recycling and repair processes. Combining several circular economy approaches reduces the current global warming potential of processing routes for CMC by up to 94%.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108776"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"AI-enhanced sorting enabling direct high-purity tantalum urban mining: a novel pathway from e-waste to critical materials","authors":"Dong Xia ,&nbsp;Kok Yuen Koh ,&nbsp;Raunaq Nayar ,&nbsp;Colin Locoge ,&nbsp;Nicolas M. Charpentier ,&nbsp;Mya Mya Khin ,&nbsp;Tien Hoa Nguyen ,&nbsp;Guillaume Zante ,&nbsp;Hicham Khodja ,&nbsp;Jean-Christophe P. Gabriel","doi":"10.1016/j.resconrec.2025.108717","DOIUrl":"10.1016/j.resconrec.2025.108717","url":null,"abstract":"<div><div>Tantalum’s supply chain instability demands efficient urban mining from e-waste. Here, we present an AI-enhanced process that combines intelligent sorting with sustainable hydrometallurgy for high-yield/high-purity Ta recovery. A hybrid sorting system, cascading an interpretable convolutional neural network (CNN) with automated multi-energy X-ray transmission (MEXRT) spectroscopy, achieved 99.6 % precision and 96.9 % recall at 3000 components/hour, resolving the Ta/Nb ambiguity. Spatial activation mapping illustrated the visual sorting mechanism, facilitating feature-driven upgrading. Meanwhile, Canny edge detection and K-edge detection enabled real-time and pixel-wise spectral analysis under multithreaded processing. Downstream, streamlined physical separation and thermodynamically guided reverse leaching selectively recovered Ta with 98.2 % efficiency under mild conditions. Advanced characterization using transmission electron microscopy and ion beam analysis revealed a quantifiable core-shell Ta/Ta₂O₅ structure in leached products, guiding calcination into &gt;99.8 % pure Ta₂O₅. This work establishes a closed-loop urban mining framework, demonstrating how AI and tailored refining enable a circular economy for critical metals.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108717"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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":"Synergistic mechanism for greenhouse gases reduction, pollution control, and economic development in the plastic packaging industry: A coupled analysis of material, value, and environmental flows","authors":"Mingxuan Tuo ,&nbsp;Ming Yang ,&nbsp;Yifan Gu ,&nbsp;Guangwen Hu ,&nbsp;He Peng ,&nbsp;Rui Li ,&nbsp;Tong Liu ,&nbsp;Yufeng Wu","doi":"10.1016/j.resconrec.2025.108712","DOIUrl":"10.1016/j.resconrec.2025.108712","url":null,"abstract":"<div><div>The plastic packaging industry is the largest and fastest-growing industry in plastic consumption, bringing significant economic profits while also facing multiple pressures from greenhouse gases emission (GHGs) and environmental pollution. To reveal the synergistic mechanisms of GHGs reduction, pollution control, and economic development, this study constructs a dynamic carbon-pollution-economy nexus model. Based on eight scenarios, we explore synergistic strategies for the plastic packaging industry. Results show that in 2060, China’s plastic packaging consumption will initially rise and then decline, reaching 43.4 million metric tons (Mt). GHGs from the plastic packaging industry will reach 140.4 Mt, while environmental pollution and economic profit is expected to increase by 32.3 % and 53.7 % compared to 2020, respectively, leading to a sustainability coordination index of 56.0. Through synergistic scenario analysis, it is recommended that promoting the substitution of secondary plastics with increasing recycling rates and improving energy recovery efficiency are crucial to establish a closed-loop supply system for the plastic packaging industry. It is the basis for synergistic GHGs reduction, pollution control, and economic development. Moreover, the use of biodegradable plastics should be approached with caution. The chemical recycling technologies should be promoted based on their maturity. Compared to the business as usual scenario, the optimal scenario can increase economic profit by 24.5 % while reducing GHGs by 60 % and pollution by 21.2 % in 2060.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"227 ","pages":"Article 108712"},"PeriodicalIF":10.9,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145657891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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}