Resources Conservation and Recycling最新文献

{"title":"Recovery of fluorine-containing resources from spent lithium-ion batteries as high-value products","authors":"Yongfeng Zhao ,&nbsp;Yunpeng Wen ,&nbsp;Yue Yang ,&nbsp;Shengming Xu","doi":"10.1016/j.resconrec.2025.108403","DOIUrl":"10.1016/j.resconrec.2025.108403","url":null,"abstract":"<div><div>The fluorine-containing organics in the spent lithium-ion batteries (LIBs) cause environmental pollution during recycling. Recovery of fluorine-containing resources is critical for the recycling process of spent LIBs. This study elucidated the transformation mechanism of fluoride in cathode black mass (BM) during pyrolysis and proposed an integrated approach for fluoride reclamation. At 650 °C, 89.7 % of fluorine was primarily migrated to the gas phase, while 10.3 % was retained in the solid residue. The fluorine in the gas phase was absorbed using water and converted into HF solution and the absorption efficiency was 96.4 % under the optimal conditions. Acid leaching was used to dissolve the LiF in the BM pyrolysis residue. Subsequent acid leaching effectively dissolved residual LiF from the solid pyrolysis product. Fluidized-bed crystallization was then applied to recover fluorine from the leaching solution as large-sized CaF₂ particles. The total amount of fluorine recovered from BM through both pathways was 94.5 %.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108403"},"PeriodicalIF":11.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147922","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 material stocks in long-lived products: Challenges and improvements for informing sustainable resource use strategies","authors":"Jan Streeck ,&nbsp;André Baumgart ,&nbsp;Helmut Haberl ,&nbsp;Fridolin Krausmann ,&nbsp;Bowen Cai ,&nbsp;Tomer Fishman ,&nbsp;Maud Lanau ,&nbsp;Peter Berrill ,&nbsp;Zhi Cao ,&nbsp;Sebastiaan Deetman ,&nbsp;David Frantz ,&nbsp;Volker Krey ,&nbsp;Alessio Mastrucci ,&nbsp;Alessio Miatto ,&nbsp;Stefan Pauliuk ,&nbsp;Lola Sylvie Annie Rousseau ,&nbsp;Shoshanna Saxe ,&nbsp;Danielle Densley Tingley ,&nbsp;Gamze Ünlü ,&nbsp;Dominik Wiedenhofer","doi":"10.1016/j.resconrec.2025.108324","DOIUrl":"10.1016/j.resconrec.2025.108324","url":null,"abstract":"<div><div>Material stocks in long-lived products require over half of the annual global resource extraction for their construction and maintenance, and lock in energy use through their technical and geospatial characteristics. A thorough understanding of material stocks is therefore essential to inform sustainable resource use strategies. However, despite substantial advances in material stock research in recent decades, their robust quantification remains challenging and bears considerable uncertainties.</div><div>We assess the (dis)agreement of material stock estimates from 32 recent studies across global, national, and urban scales, and propose recommendations for future work. Overall, we observe medium to high divergences between studies estimating the same material stocks. For end-use categories that aggregate multiple material stocks (e.g., buildings), most global-level estimates show divergences within 140 %. At the national level, most estimates for the USA diverge by &lt;210 %, while those for China by &lt;550 %. At the urban level, most estimates for Beijing fall within 90 %, and for Vienna, within 70 %. For low-income countries, non-residential buildings, and individual materials, the differences are often substantially higher, highlighting the need for an improved scientific basis for policy and planning.</div><div>These disparities arise from differences in system boundaries, methodology, data sources, definitions, and lack of data to capture the diversity of material stock types. To robustly inform sustainable resource use strategies, the scientific community and practitioners should systematically assess and report sensitivity and uncertainty, and reduce the latter through transparent documentation, model intercomparisons, consensus and open-access databases, enhanced data collection, and comprehensive quantification of material stocks.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108324"},"PeriodicalIF":11.2,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147926","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":"Algae-based earth materials for sustainable construction: Toward a new generation of bio-stabilized building solutions","authors":"Yassine El Mendili ,&nbsp;Mohamed-Hichem Benzaama ,&nbsp;Lukáš Bejček ,&nbsp;Romain Mège ,&nbsp;Franck Hennequart ,&nbsp;Badreddine El Haddaji","doi":"10.1016/j.resconrec.2025.108401","DOIUrl":"10.1016/j.resconrec.2025.108401","url":null,"abstract":"<div><div>This study explores the enhancement of Compressed Earth Blocks (CEBs) using alginate-based stabilization, promoting resource conservation and the use of renewable materials in construction. By utilizing alginates from algae— a renewable and increasingly abundant resource due to the uncontrolled proliferation of algae belts —the research addresses key limitations of traditional CEBs, such as mechanical strength and thermal efficiency. Experimental results show that alginate-stabilized CEBs achieve a compressive strength of 6.82 MPa and a 26 % reduction in thermal conductivity (from 0.69 to 0.48 W.m⁻¹.K⁻¹), enhancing insulation and energy efficiency. The stabilization mechanism involves ionic bridging, which increases porosity and performance. These findings highlight the potential of alginate-stabilized CEBs as an eco-friendly alternative to cement-based materials, contributing to sustainable construction while offering a practical application for excess algae, an environmental challenge with no current large-scale solution. This approach aligns with circular economy principles, providing a scalable, climate-resilient building strategy that reduces environmental impact and promotes innovative resource utilization.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108401"},"PeriodicalIF":11.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144147921","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":"Probabilistic evaluation of enterprises' fraudulent report in pollutant levels based on machine learning: a case of hazardous waste generation quantity","authors":"Wen Fang ,&nbsp;Qingyuan Yu ,&nbsp;Wenjun Xie ,&nbsp;Jianxun Yang ,&nbsp;Zongwei Ma ,&nbsp;Miaomiao Liu ,&nbsp;Jun Bi","doi":"10.1016/j.resconrec.2025.108407","DOIUrl":"10.1016/j.resconrec.2025.108407","url":null,"abstract":"<div><div>Industrial enterprises are prominent sources of contaminants, and accurate reporting of contaminant discharge by these enterprises is essential for effective environmental management. However, fraudulent reporting, particularly underreporting hazardous waste (HW) generation, has become an intractable issue. HW is difficult to monitor automatically, and underreporting often implies improper treatment or illegal dumping, which can cause severe environmental risks. Regulators face challenges in detecting underreporting due to the lack of prior knowledge about the theoretical HW generation at the firm level. This study proposes a machine learning framework to detect fraudulent reporting by correlating HW generation with enterprises’ static characteristics and real-time manufacturing activities, such as wastewater discharge. The model was tested on two industrial sectors in Jiangsu, China, with datasets containing 10 % fraudulent samples. It achieved an accuracy of 42.9 %-55 % when observations with a probability of underreporting HW generation exceeding 90 % were flagged as fraudulent.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108407"},"PeriodicalIF":11.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135015","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":"Integrating nutrient balance, environmental footprints and nutrient optimization strategies for sustainable potato production system in China","authors":"Hanyou Xie ,&nbsp;Ping He ,&nbsp;Wencheng Ding ,&nbsp;Xinpeng Xu ,&nbsp;Yan Xu ,&nbsp;Wentian He","doi":"10.1016/j.resconrec.2025.108399","DOIUrl":"10.1016/j.resconrec.2025.108399","url":null,"abstract":"<div><div>Optimized fertilizer managements are crucial for enhancing global food security and represent essential strategies for reducing greenhouse gas (GHG) and reactive nitrogen (Nr) emissions. However, a systematic assessment of the distribution and reduction potential for nutrient inputs, GHG and Nr emissions within the Chinese potato production system is lacking. Here, we evaluated the nutrient balance, GHG and Nr emissions in China’s major potato-growing regions using statistical data between 2011 to 2021 and explored nutrient optimization strategies towards 2060. Adopting a cradle-to-farm gate Life Cycle Assessment (LCA) approach to quantify environmental footprints associated with agricultural materials inputs (synthetic fertilizers, manure, electricity, fuel, films, pesticides) and crop growth stages. Our results indicated that both nutrient inputs and environmental footprints per hectare increased from 2011 to 2021. GHG emissions were predominantly attributed to fertilizer production and transportation (52.9%–66.8%), and Nr emissions were primarily due to N leaching (87.0%-88.5%). An optimized fertilization strategy based on the Nutrient Expert for Potato (NE_Potato), involving a reduction of N (34.4%) and P (74.5%), and an increase of K (7.8%) inputs, reduced environmental footprints by 35.9%-51.8%. Projection indicated that by 2060, optimized fertilization strategies could reduce synthetic fertilizer usage by 67.5-85.3 × 10⁴ t, decrease GHG emissions by 2.1-5.1 Mt CO₂ -eq and lower Nr emissions by 4.0-15.6 × 10⁴ N t. This study concluded that implementing optimized fertilization through NE_Potato, integrating manure and enhanced-efficiency fertilizers practices offer promising strategies to mitigate GHG and Nr emissions in China’s potato production system.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108399"},"PeriodicalIF":11.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144135014","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":"A global spatialized approach to estimate residential building floor area and material stocks","authors":"Adrian Foong ,&nbsp;Stepan Svintsov ,&nbsp;Tobias Seydewitz ,&nbsp;Anne Holsten ,&nbsp;Barbara K. Reck","doi":"10.1016/j.resconrec.2025.108398","DOIUrl":"10.1016/j.resconrec.2025.108398","url":null,"abstract":"<div><div>A better understanding of the material stock in the built environment is needed to reduce its climate and environmental impacts while also improving its circularity. We introduce a comprehensive, globally consistent method to estimate residential floor area and material stock at a fine-scale spatial resolution, using the latest publicly available datasets on key building parameters and material intensity. Applying our validation analysis for a selected number of countries and subnational regions, we found that our floor area estimations underestimated official statistics by 30–40 %. Comparing our material stocks estimations with various definitions of building typologies and results from other studies, we found some degree of variation. These results highlight the need for more strengthened and concerted efforts in filling data and research gaps in various world regions. Overall, the presented approach allows for more rapid and regionally specific assessments of the material stocks and related impacts to inform policy directions.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108398"},"PeriodicalIF":11.2,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144124696","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":"Fluoride ion-mediated differential coordination separation of Al (III) and Fe (III) for regeneration of low-aluminum, high-purity battery-grade iron phosphate","authors":"Fei Han ,&nbsp;Yaohui Xie ,&nbsp;Lin Qu ,&nbsp;Zhenzhou Wang ,&nbsp;Wei Zhang ,&nbsp;Guang Yang ,&nbsp;Huiqin Hu ,&nbsp;Meiting Huang ,&nbsp;Haoxuan Yu ,&nbsp;Liming Yang ,&nbsp;Xubiao Luo","doi":"10.1016/j.resconrec.2025.108404","DOIUrl":"10.1016/j.resconrec.2025.108404","url":null,"abstract":"<div><div>Deep removal of trace aluminum from lithium extraction slag (LES) is key to recovering high-purity battery-grade iron phosphate (FePO₄). Existing methods exhibit low aluminum removal due to the close solubility product constants of Al (III) and Fe (III). In this work, we propose a novel strategy for trace aluminum removal based on fluoride ion-mediated differential coordination of Al (III) and Fe (III). Through precise control of fluoride ion concentration in phosphoric acid solution, iron preferentially precipitates while aluminum predominantly forms soluble fluoride complexes. This distinct behavior enables precise elemental separation through fluoride content optimization. The developed separation technology achieved aluminum removal rate of 98.89 %. It is noteworthy that the aluminum content of precipitated FePO₄ is below 30 ppm, which meets the standard of battery-grade. This work provides a viable technical pathway for the industrialization of Al/Fe separation in the lithium extraction slag leachate and the regeneration of low-Al, high-purity FePO₄.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108404"},"PeriodicalIF":11.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144116766","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":"Reducing greenhouse gas emissions and material use for passenger vehicles in Türkiye: A scenario-based analysis with material efficiency strategies","authors":"Ayla Alkan ,&nbsp;Stefan Pauliuk","doi":"10.1016/j.resconrec.2025.108385","DOIUrl":"10.1016/j.resconrec.2025.108385","url":null,"abstract":"<div><div>Türkiye has not yet decoupled its economy from energy and material consumption, but aims to transition to a circular economy and become carbon neutral by 2053. The potential of energy system transformation and efficient material use has not yet been assessed for many services in Türkiye. This study analyzes the impacts of these transformations on passenger vehicles, using the RECC model, a physical circular economy model, under two energy and three socioeconomic scenarios. In SSP1, 20% savings in 2020–2053 cumulative GHG emissions can be achieved through energy efficiency, and material efficiency can save an additional 12%. In the low demand scenario, LED, cumulative emissions reduction reaches 42%. In SSP1, cumulative material savings can be 45%, and secondary material use reaches 50% share. LED can achieve Türkiye’s targets for the transport sector, and its implementation depends on financial and R&amp;D support to industries, infrastructure improvements, and changes in consumer driving habits.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108385"},"PeriodicalIF":11.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107289","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":"Impact of spatial transfer of farmland on the food-water-GHG nexus in China during 2000–2020","authors":"Yunxi Liu ,&nbsp;Xue Wang ,&nbsp;Minghong Tan ,&nbsp;Fuyao Zhang ,&nbsp;Xiubin Li","doi":"10.1016/j.resconrec.2025.108390","DOIUrl":"10.1016/j.resconrec.2025.108390","url":null,"abstract":"<div><div>Analyzing the impact of spatial transfer of farmland (STF) on the food-water-greenhouse gases (FWG) nexus through a coupled perspective holds significant scientific value for guiding sustainable farmland management policies. This study developed an integrated assessment framework to quantify FWG-nexus dynamics induced by STF, systematically evaluating changes in crop yields, irrigation water consumption, and GHG emissions across China from 2000 to 2020. The coupling coordination degree (CCD) of the FWG system was further examined. The results show that between 2000 and 2020, the area of farmland in China decreased by 2.63 × 10⁴km², and the center of gravity of farmland shifted approximately 56.90 km towards the northwest. Nationwide, STF led to an increase in average crop yields by 58.54 kg/ha; at the same time, the average irrigation water consumption increased by 1.93 mm, and the average GHG emissions also rose by 23.63 kgCO₂-eq/ha. During the study period, the FWG-nexus exhibited a tendency toward decoupling, as indicated by a 0.21 % decrease in the FWG CCD. The increasing consumption for irrigation water and rising GHG emissions have consistently been the primary constraints to the harmonization of the FWG-nexus at the national level, with notable regional variations of these constraints. These insights help deepen the understanding of the impact of STF on the FWG-nexus, providing scientific support for sustainable land use in China and the achievement of the United Nations Sustainable Development Goals (SDGs).</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108390"},"PeriodicalIF":11.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107288","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":"Improving agricultural mulching to reduce environmental footprint and enhance economic profit across China","authors":"Huihui Wei ,&nbsp;Yifan Yang ,&nbsp;Li Zhang ,&nbsp;Zutao Ouyang ,&nbsp;Matthew Tom Harrison ,&nbsp;Ke Liu ,&nbsp;Guojun Sun ,&nbsp;Gary Y. Gan ,&nbsp;Feng-Min Li ,&nbsp;Li Dong ,&nbsp;Rui Wang ,&nbsp;Bo Wang ,&nbsp;Feng Zhang","doi":"10.1016/j.resconrec.2025.108393","DOIUrl":"10.1016/j.resconrec.2025.108393","url":null,"abstract":"<div><div>Large-scale and difficult to decompose greenhouse gas (GHG) have challenged the agrifood sector to achieve net zero. While mulching perturbs GHG emissions and soil carbon sequestration, its potential in reducing GHG emissions remains unexplored. Here, we combined life cycle assessment with process-based model to evaluate carbon footprints and net environmental and economic benefits of maize, wheat and rice under no-mulching (CK), plastic film (PM) and straw mulching (SM) in China. We show that carbon footprint of rice was highest, methane (CH₄) and nitrogen fertilizer were main contributor. In China, GHG emissions of three crops were 668 Tg CO₂ eq yr⁻¹ (rice: 38 %, maize: 33 %, wheat: 29 %), SM increased yield (12 %), agricultural profit (9 %) and reduced emissions (9 %), which promotes agricultural co-development, but PM needs to be combined with other mitigation measures. Our study paved ways for comprehensively understanding the impact of mulching, and developing effective strategies towards sustainable future.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"221 ","pages":"Article 108393"},"PeriodicalIF":11.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107290","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}