Resources Conservation and Recycling最新文献

英文中文

Plastic waste for frost mitigation: A bio-inspired approach to enhance soil resilience and carbon sequestration

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-24 DOI: 10.1016/j.resconrec.2025.108139

Farideh Pahlavan , Rashed Rahman , Mohammadjavad Kazemi , Tejo V. Bheemasetti , Elham H. Fini

This study investigates the use of waste plastic coated with biogenic carbon as a functional material for soils susceptible to frost heave and freeze-thaw. Our bio-inspired approach draws inspiration from ice-binding proteins (IBPs) found in polar organisms, using principles of surface science to develop carbon-coated oil-treated plastic granules (C-OTPG) aimed at lowering the freezing point in frost-susceptible geomaterials. We hypothesize that C-OTPG can effectively mimic the function of IBPs by disrupting ice nucleation and crystal growth through interactions among C-OTPG's functional groups, water, and the siliceous substrate. This innovative strategy seeks to bolster the resilience of geomaterials in cold climates while repurposing waste materials for sustainable applications. By integrating nature's solutions with modern engineering, we aim to create more durable and environmentally friendly materials. Evaluation experiments used a Linkam Peltier LTS120 thermoelectrical cooling device and bright-field microscopy to measure freezing temperatures and thawing temperatures and to assess the ice-inhibition properties of both silt and fine sand treated with C-OTPG. We found that for silt, C-OTPG treatment reduced the freezing point by up to 39 % and increased thermal hysteresis by up to 65 %, while for fine sand, the freezing point was reduced by up to 52 % and thermal hysteresis increased by up to 38 %. Calculations using density functional theory show strong hydrogen bonding and polar interactions between biogenic carbon and water molecules, preventing movement of water to the frost front and disrupting the formation of ice crystals. Additionally, biogenic carbon competes for adsorption sites on silica surfaces of sand and silt, while “capping” water molecules already on a silica surface inhibiting ice formation. This study highlights the potential of bio-inspired solutions to stabilize frost-susceptible soils while promoting resource conservation and environmental sustainability.

{"title":"Plastic waste for frost mitigation: A bio-inspired approach to enhance soil resilience and carbon sequestration","authors":"Farideh Pahlavan , Rashed Rahman , Mohammadjavad Kazemi , Tejo V. Bheemasetti , Elham H. Fini","doi":"10.1016/j.resconrec.2025.108139","DOIUrl":"10.1016/j.resconrec.2025.108139","url":null,"abstract":"<div><div>This study investigates the use of waste plastic coated with biogenic carbon as a functional material for soils susceptible to frost heave and freeze-thaw. Our bio-inspired approach draws inspiration from ice-binding proteins (IBPs) found in polar organisms, using principles of surface science to develop carbon-coated oil-treated plastic granules (C-OTPG) aimed at lowering the freezing point in frost-susceptible geomaterials. We hypothesize that C-OTPG can effectively mimic the function of IBPs by disrupting ice nucleation and crystal growth through interactions among C-OTPG's functional groups, water, and the siliceous substrate. This innovative strategy seeks to bolster the resilience of geomaterials in cold climates while repurposing waste materials for sustainable applications. By integrating nature's solutions with modern engineering, we aim to create more durable and environmentally friendly materials. Evaluation experiments used a Linkam Peltier LTS120 thermoelectrical cooling device and bright-field microscopy to measure freezing temperatures and thawing temperatures and to assess the ice-inhibition properties of both silt and fine sand treated with C-OTPG. We found that for silt, C-OTPG treatment reduced the freezing point by up to 39 % and increased thermal hysteresis by up to 65 %, while for fine sand, the freezing point was reduced by up to 52 % and thermal hysteresis increased by up to 38 %. Calculations using density functional theory show strong hydrogen bonding and polar interactions between biogenic carbon and water molecules, preventing movement of water to the frost front and disrupting the formation of ice crystals. Additionally, biogenic carbon competes for adsorption sites on silica surfaces of sand and silt, while “capping” water molecules already on a silica surface inhibiting ice formation. This study highlights the potential of bio-inspired solutions to stabilize frost-susceptible soils while promoting resource conservation and environmental sustainability.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108139"},"PeriodicalIF":11.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152777","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}

引用次数: 0

Sustainable recycling and upgrading of waste polytetrafluoroethylene: Current progress and prospect

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-24 DOI: 10.1016/j.resconrec.2025.108143

Wenbing Yu , Lishan Chen , Xi Zhang , Rui Lu , Xuhai Zhu , Fang Lu

Polytetrafluoroethylene (PTFE), a versatile and high-performance fluoropolymer, has been widely applied to chemical industries, electronics and various other fields. However, owing precisely to the extensive and specialized range of its applications, the challenge of recycling PTFE has intensified, exerting considerable pressure and posing potential hazards to the ecological environment. Hence, the critical review presents a comprehensive and methodical overview of the current landscape of PTFE recycling technologies. It delves into an in-depth analysis of the strengths, limitations, and potential applications of each technology. Commencing with a comprehensive summary of research into mechanical recycling and radiation cracking of PTFE, the review subsequently emphasizes and explores the technological advancements in recovering monomers via PTFE pyrolysis, along with the innovative in-situ utilization of fluorine and carbon atoms for the synthesis of fluorine-containing chemicals and materials. Furthermore, the existing challenges confronting chemical recycling technologies for waste PTFE have been thoroughly discussed, and the promising prospects for the advancement of recycling technologies in the future have been outlined. It's anticipated that continuous research exploration and reasonable policy formulation will vigorously promote the development of more environmentally sustainable and economically feasible chemical upgrading technologies, thereby accelerating the process of industrializing the utilization of waste PTFE resources.

{"title":"Sustainable recycling and upgrading of waste polytetrafluoroethylene: Current progress and prospect","authors":"Wenbing Yu , Lishan Chen , Xi Zhang , Rui Lu , Xuhai Zhu , Fang Lu","doi":"10.1016/j.resconrec.2025.108143","DOIUrl":"10.1016/j.resconrec.2025.108143","url":null,"abstract":"<div><div>Polytetrafluoroethylene (PTFE), a versatile and high-performance fluoropolymer, has been widely applied to chemical industries, electronics and various other fields. However, owing precisely to the extensive and specialized range of its applications, the challenge of recycling PTFE has intensified, exerting considerable pressure and posing potential hazards to the ecological environment. Hence, the critical review presents a comprehensive and methodical overview of the current landscape of PTFE recycling technologies. It delves into an in-depth analysis of the strengths, limitations, and potential applications of each technology. Commencing with a comprehensive summary of research into mechanical recycling and radiation cracking of PTFE, the review subsequently emphasizes and explores the technological advancements in recovering monomers via PTFE pyrolysis, along with the innovative in-situ utilization of fluorine and carbon atoms for the synthesis of fluorine-containing chemicals and materials. Furthermore, the existing challenges confronting chemical recycling technologies for waste PTFE have been thoroughly discussed, and the promising prospects for the advancement of recycling technologies in the future have been outlined. It's anticipated that continuous research exploration and reasonable policy formulation will vigorously promote the development of more environmentally sustainable and economically feasible chemical upgrading technologies, thereby accelerating the process of industrializing the utilization of waste PTFE resources.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108143"},"PeriodicalIF":11.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152776","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}

引用次数: 0

Efficient removal of phosphonate and phosphorus recovery from reverse osmosis concentrate using electroactive membrane reactor

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-24 DOI: 10.1016/j.resconrec.2025.108148

Lehui Ren , Yang Li , Wei Shi , Yao Qu , Xueye Wang , Zhichao Wu , Zhiwei Wang

Phosphonate antiscalants, commonly found in reverse osmosis (RO) concentrates, significantly contribute to eutrophication. Conventional advanced oxidation processes (AOPs) can only convert phosphonates into ortho-phosphorus (ortho-P), necessitating a secondary step for phosphorus removal. To overcome this limitation, we developed a single-step electroactive membrane reactor (EMR) system for phosphonate removal and simultaneous phosphorus recovery. In this system, the phosphonate was oxidized to orthophosphate (ortho-P) by singlet oxygen (¹O₂) generated at the Pd/Ti REM. Subsequently, calcium phosphate (CaP) precipitates were formed at the cathodic membrane interface through reaction with calcium ions. Under conditions of 5 mA/cm² current density and 0.5 mL/min flow rate, the EMR system achieved 85 % degradation efficiency of phosphonates and 80 % recovery efficiency of phosphorus, with an energy consumption of 0.019 kWh/g-P. Overall, this EMR technology offers significant potential for the efficient removal of phosphonate antiscalants from RO concentrates, providing a novel approach to sustainable phosphorus management.

{"title":"Efficient removal of phosphonate and phosphorus recovery from reverse osmosis concentrate using electroactive membrane reactor","authors":"Lehui Ren , Yang Li , Wei Shi , Yao Qu , Xueye Wang , Zhichao Wu , Zhiwei Wang","doi":"10.1016/j.resconrec.2025.108148","DOIUrl":"10.1016/j.resconrec.2025.108148","url":null,"abstract":"<div><div>Phosphonate antiscalants, commonly found in reverse osmosis (RO) concentrates, significantly contribute to eutrophication. Conventional advanced oxidation processes (AOPs) can only convert phosphonates into ortho-phosphorus (ortho-P), necessitating a secondary step for phosphorus removal. To overcome this limitation, we developed a single-step electroactive membrane reactor (EMR) system for phosphonate removal and simultaneous phosphorus recovery. In this system, the phosphonate was oxidized to orthophosphate (ortho-P) by singlet oxygen (<sup>1</sup>O<sub>2</sub>) generated at the Pd/Ti REM. Subsequently, calcium phosphate (CaP) precipitates were formed at the cathodic membrane interface through reaction with calcium ions. Under conditions of 5 mA/cm² current density and 0.5 mL/min flow rate, the EMR system achieved 85 % degradation efficiency of phosphonates and 80 % recovery efficiency of phosphorus, with an energy consumption of 0.019 kWh/g-P. Overall, this EMR technology offers significant potential for the efficient removal of phosphonate antiscalants from RO concentrates, providing a novel approach to sustainable phosphorus management.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108148"},"PeriodicalIF":11.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152775","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}

引用次数: 0

Building the resilient food waste supply chain for the megacity: Based on the Multi-scale Progressive Fusion framework

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-24 DOI: 10.1016/j.resconrec.2025.108144

Tianrui Zhao, Huihang Sun, Yihe Wang, Wei Zhan, Lipin Li, Yanliang Li, Weijia Li, Xiaomi Tang, Shanshan Luo, Xuanlong Shang, Jun Zhang, Yu Tian

Food waste (FW), a significant component of municipal solid waste (MSW), exhibits notable spatiotemporal fluctuations and environmental impacts, especially in megacities. To enable efficient FW recycling, we developed a resilient supply chain prediction model by leveraging the Multi-scale Progressive Fusion (MPF) framework. The framework integrates models for annual MSW prediction, monthly fluctuations, FW separation rates, and spatial downscaling, enabling it to accurately capture spatiotemporal patterns at a monthly resolution and 1 km² scale (R² = 0.8130)., significantly outperforming the Baseline framework (R² = 0.1383). Our analysis predicted that FW in Beijing would exhibit seasonal variations by 2035, with daily FW during the peak season (July and August) being 36 % higher than in the off-season (February). These findings supported seasonal resilient strategies for addressing spatiotemporal fluctuations in FW. Scenario analysis demonstrated that the MPF framework, when combined with resilient measures, significantly improved supply chain resilience. Compared to non-resilient supply chains reliant on baseline FW predictions, it enhanced traffic adaptation by 5.6 %, reduced costs by 16.9 %, and lowered greenhouse gas (GHG) emissions by 40.1 %. This study demonstrated the critical role of accurate FW spatiotemporal forecasting in enhancing resilience within megacities and provided a practical pathway for building resilient FW supply chains globally.

{"title":"Building the resilient food waste supply chain for the megacity: Based on the Multi-scale Progressive Fusion framework","authors":"Tianrui Zhao, Huihang Sun, Yihe Wang, Wei Zhan, Lipin Li, Yanliang Li, Weijia Li, Xiaomi Tang, Shanshan Luo, Xuanlong Shang, Jun Zhang, Yu Tian","doi":"10.1016/j.resconrec.2025.108144","DOIUrl":"10.1016/j.resconrec.2025.108144","url":null,"abstract":"<div><div>Food waste (FW), a significant component of municipal solid waste (MSW), exhibits notable spatiotemporal fluctuations and environmental impacts, especially in megacities. To enable efficient FW recycling, we developed a resilient supply chain prediction model by leveraging the Multi-scale Progressive Fusion (MPF) framework. The framework integrates models for annual MSW prediction, monthly fluctuations, FW separation rates, and spatial downscaling, enabling it to accurately capture spatiotemporal patterns at a monthly resolution and 1 km² scale (R² = 0.8130)., significantly outperforming the Baseline framework (R² = 0.1383). Our analysis predicted that FW in Beijing would exhibit seasonal variations by 2035, with daily FW during the peak season (July and August) being 36 % higher than in the off-season (February). These findings supported seasonal resilient strategies for addressing spatiotemporal fluctuations in FW. Scenario analysis demonstrated that the MPF framework, when combined with resilient measures, significantly improved supply chain resilience. Compared to non-resilient supply chains reliant on baseline FW predictions, it enhanced traffic adaptation by 5.6 %, reduced costs by 16.9 %, and lowered greenhouse gas (GHG) emissions by 40.1 %. This study demonstrated the critical role of accurate FW spatiotemporal forecasting in enhancing resilience within megacities and provided a practical pathway for building resilient FW supply chains globally.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108144"},"PeriodicalIF":11.2,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152774","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}

引用次数: 0

Unraveling the timber supply chain in the belt and road region: Analyzing embodied timber flows and industrial interconnections

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-23 DOI: 10.1016/j.resconrec.2025.108138

Zixing Gao , Chang Yu , Erman Xia , Xinyue Zhu , Yaoxiaoxue Hong , Liuqing Wang

Forests are crucial for climate mitigation and sustainable development but are increasingly degraded by international trade, particularly in the Belt and Road Initiative (BRI) region. This study analyzes trade-embodied timber flows in the BRI region from the perspectives of primary inputs and final demands. By examining timber trade dynamics within the BRI region and with global partners, the study uncovers evolving trade characteristics across the supply chain. The BRI region shifted from a net timber exporter with a trade surplus of 6.27 million m³ to a net importer with a trade deficit of 2.94 million m³ in intra-regional trade, while the share of internal primary input-driven imports rose from 91.68 % to 95.87 %. The region shows reliance on primary inputs and lower positioning in the global timber value chain. This study contributes to clarifying forestry supply chain interconnections, and highlighting challenges in sustainable forest management in the BRI region.

{"title":"Unraveling the timber supply chain in the belt and road region: Analyzing embodied timber flows and industrial interconnections","authors":"Zixing Gao , Chang Yu , Erman Xia , Xinyue Zhu , Yaoxiaoxue Hong , Liuqing Wang","doi":"10.1016/j.resconrec.2025.108138","DOIUrl":"10.1016/j.resconrec.2025.108138","url":null,"abstract":"<div><div>Forests are crucial for climate mitigation and sustainable development but are increasingly degraded by international trade, particularly in the Belt and Road Initiative (BRI) region. This study analyzes trade-embodied timber flows in the BRI region from the perspectives of primary inputs and final demands. By examining timber trade dynamics within the BRI region and with global partners, the study uncovers evolving trade characteristics across the supply chain. The BRI region shifted from a net timber exporter with a trade surplus of 6.27 million m³ to a net importer with a trade deficit of 2.94 million m³ in intra-regional trade, while the share of internal primary input-driven imports rose from 91.68 % to 95.87 %. The region shows reliance on primary inputs and lower positioning in the global timber value chain. This study contributes to clarifying forestry supply chain interconnections, and highlighting challenges in sustainable forest management in the BRI region.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108138"},"PeriodicalIF":11.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152771","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}

引用次数: 0

Assessing the ISO hierarchy validity in circular wastewater treatment life cycle assessments: A Portuguese case study

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-23 DOI: 10.1016/j.resconrec.2025.108146

Georgios Archimidis Tsalidis , Daniel Dias , Antonio Martins , Vasileia Vasilaki , João Miguel Ribeiro , Evina Katsou

This study evaluates the validity of ISO hierarchy in handling multifunctionality in life cycle assessments of circular wastewater treatment plants (WWTPs). The case study focuses on retrofitting a WWTP to produce Kaumera biopolymer, a potential substitute for sodium alginate. Various multifunctionality handling approaches—system expansion, zero-burden, economic, and mass allocations—were applied and various functional units were selected to calculate environmental impacts. The global warming (GWP), mineral resource scarcity (MRSP), and fossil resource scarcity (FRSP) indicators were examined. The results indicate that Kaumera offers significant environmental benefits (40 %–99.9 %) in GWP, MRSP, and FRSP compared to sodium alginate. System expansion provides a comprehensive assessment, making it the preferred approach. Economic allocation yields closer results to system expansion than other approaches, while zero-burden and mass allocation show 88–93 % and 100 % improvements, respectively, leading to misleading conclusions. We suggest that ISO should prioritize economic allocation over mass allocation in wastewater treatment studies.

{"title":"Assessing the ISO hierarchy validity in circular wastewater treatment life cycle assessments: A Portuguese case study","authors":"Georgios Archimidis Tsalidis , Daniel Dias , Antonio Martins , Vasileia Vasilaki , João Miguel Ribeiro , Evina Katsou","doi":"10.1016/j.resconrec.2025.108146","DOIUrl":"10.1016/j.resconrec.2025.108146","url":null,"abstract":"<div><div>This study evaluates the validity of ISO hierarchy in handling multifunctionality in life cycle assessments of circular wastewater treatment plants (WWTPs). The case study focuses on retrofitting a WWTP to produce Kaumera biopolymer, a potential substitute for sodium alginate. Various multifunctionality handling approaches—system expansion, zero-burden, economic, and mass allocations—were applied and various functional units were selected to calculate environmental impacts. The global warming (GWP), mineral resource scarcity (MRSP), and fossil resource scarcity (FRSP) indicators were examined. The results indicate that Kaumera offers significant environmental benefits (40 %–99.9 %) in GWP, MRSP, and FRSP compared to sodium alginate. System expansion provides a comprehensive assessment, making it the preferred approach. Economic allocation yields closer results to system expansion than other approaches, while zero-burden and mass allocation show 88–93 % and 100 % improvements, respectively, leading to misleading conclusions. We suggest that ISO should prioritize economic allocation over mass allocation in wastewater treatment studies.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108146"},"PeriodicalIF":11.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental impact and sustainable development of pozzolanic concrete incorporating polypropylene fibers: A database study

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-23 DOI: 10.1016/j.resconrec.2025.108142

Daniel Nwaokete , Ceren Ince , Shahram Derogar , Demetris Nicolaides , Richard James Ball

The study evaluates the life cycle performance of concrete incorporating polypropylene fibres using a database approach. Linear regression analysis identified 2 % to be optimum polypropylene fiber content, while 30 % fly ash, 15 % slag and 7.5 % silica fume were detected to be the optimum pozzolanic replacement that is demonstrated to play an essential role in mitigating the adverse effect of polypropylene fibres use on the engineering properties of concrete. The established models attained through the database analysis were consequently subjected to the life cycle assessment based on a cradle-to-gate approach. The inventory analysis has shown that the utilisation of polypropylene fibers, particularly when accompanied with pozzolans, could considerably reduce the life cycle associated indices. Model 3a, for instance, yielded over 25 % reduction in climate change potential and in ozone depletion. The study highlights the significances of greener production of construction materials and embraces environmental preservation through a cleaner waste disposal approach.

{"title":"Environmental impact and sustainable development of pozzolanic concrete incorporating polypropylene fibers: A database study","authors":"Daniel Nwaokete , Ceren Ince , Shahram Derogar , Demetris Nicolaides , Richard James Ball","doi":"10.1016/j.resconrec.2025.108142","DOIUrl":"10.1016/j.resconrec.2025.108142","url":null,"abstract":"<div><div>The study evaluates the life cycle performance of concrete incorporating polypropylene fibres using a database approach. Linear regression analysis identified 2 % to be optimum polypropylene fiber content, while 30 % fly ash, 15 % slag and 7.5 % silica fume were detected to be the optimum pozzolanic replacement that is demonstrated to play an essential role in mitigating the adverse effect of polypropylene fibres use on the engineering properties of concrete. The established models attained through the database analysis were consequently subjected to the life cycle assessment based on a cradle-to-gate approach. The inventory analysis has shown that the utilisation of polypropylene fibers, particularly when accompanied with pozzolans, could considerably reduce the life cycle associated indices. Model 3a, for instance, yielded over 25 % reduction in climate change potential and in ozone depletion. The study highlights the significances of greener production of construction materials and embraces environmental preservation through a cleaner waste disposal approach.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108142"},"PeriodicalIF":11.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multidimensional sustainability implications of alternative iron and steel industry decarbonization strategies in China

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-23 DOI: 10.1016/j.resconrec.2025.108136

Ming Ren , Bohan Zhu , Chen Huang , Jianliang Wang , Hancheng Dai

The urgency of a rapid and deep decarbonization of the iron and steel (IS) industry cannot be overstated in pursuing China's carbon neutrality target. Beyond CO₂ emissions, the IS industry is also responsible for numerous non-climate impacts. We explored the impacts of alternative decarbonization options of the IS industry on economic cost, water, energy, CO_2, and air pollutant emissions from a systematic perspective. While all decarbonization pathways yield co-benefits on air pollutants emissions for the IS industry, the profiles of carbon leakage and spillover effect depend strongly on technology choice. Mitigation scenarios focusing on hydrogen-based direct reduction result in increases of CO₂, SO₂, and NO_x emissions from upstream energy supply. In CCS-led scenarios, fuel substitution could result in an expansion of charcoal-making and corresponding emissions of particulate matter. Thus, policymakers must consider the proper combination of upstream energy supply chain and decarbonization options for IS to avoid undesirable outcomes.

{"title":"Multidimensional sustainability implications of alternative iron and steel industry decarbonization strategies in China","authors":"Ming Ren , Bohan Zhu , Chen Huang , Jianliang Wang , Hancheng Dai","doi":"10.1016/j.resconrec.2025.108136","DOIUrl":"10.1016/j.resconrec.2025.108136","url":null,"abstract":"<div><div>The urgency of a rapid and deep decarbonization of the iron and steel (IS) industry cannot be overstated in pursuing China's carbon neutrality target. Beyond CO<sub>2</sub> emissions, the IS industry is also responsible for numerous non-climate impacts. We explored the impacts of alternative decarbonization options of the IS industry on economic cost, water, energy, CO<sub>2,</sub> and air pollutant emissions from a systematic perspective. While all decarbonization pathways yield co-benefits on air pollutants emissions for the IS industry, the profiles of carbon leakage and spillover effect depend strongly on technology choice. Mitigation scenarios focusing on hydrogen-based direct reduction result in increases of CO<sub>2</sub>, SO<sub>2</sub>, and NO<sub>x</sub> emissions from upstream energy supply. In CCS-led scenarios, fuel substitution could result in an expansion of charcoal-making and corresponding emissions of particulate matter. Thus, policymakers must consider the proper combination of upstream energy supply chain and decarbonization options for IS to avoid undesirable outcomes.</div></div>","PeriodicalId":21153,"journal":{"name":"Resources Conservation and Recycling","volume":"215 ","pages":"Article 108136"},"PeriodicalIF":11.2,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152773","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}

引用次数: 0

Addressing decarbonization strategies through a game theory perspective

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-22 DOI: 10.1016/j.resconrec.2025.108137

Elizabeth A. Moore , Karan Bhuwalka , Andy Zhu , Yijia Chen , Panya Tang , Jennifer D. Russell , Randolph Kirchain , Richard Roth

The global demand for metals is rapidly increasing due to population growth, technological innovation, and economic growth. To meet this demand, mining firms adopt various strategies, which often lead to increased carbon emissions. Decarbonization efforts could be supported by economic policies that encourage lower emissions. Since mining industries consist of individual stakeholders, policies should consider their competitive behavior rather than the industry-as-a-whole. A game theory framework applied to an oligopoly scenario of four mining firms reveals that firms, acting individually, tend to expand production more than if they considered the industry-as-a-whole. This leads to environmental consequences, price depression, and reduced profitability. This game theory perspective helps identify economic policies that could guide firms toward mining the least damaging ore.

引用次数: 0

End-of-life vehicle plastic management in Republic of Korea: Material flow analysis and hazardous substance analysis

IF 11.2 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Resources Conservation and Recycling

Pub Date : 2025-01-22 DOI: 10.1016/j.resconrec.2025.108133

Sun-Ju Lee , Na-Hyeon Cho , Young-Sam Yoon , Tae-Wan Jeon , Woori Cho , Seungtaek Lee , Young-Yeul Kang

One of the alternatives for reducing greenhouse gas emissions is the ongoing effort to lighten the weight of vehicles. Therefore, the proportion of end-of-life vehicles (ELV) plastic (ELVP) is expected to increase. In this study, material flow analysis (MFA) of ELVs and the first ELVP–MFA were conducted in the Republic of Korea. The amount of ELVP dismantled from ELVs was 22,600 tons per year. Of these, 22,000 tons were sent to recycling facilities. The actual recycling rate was only 51.7 %, and the practical recycling rate was lower. Large amounts of inorganic matter and plastic additives, including those from ELVP, were detected in the ELVs. In other words, metal resources are lost, and hazardous substances are estimated to be released into the environment during the ELV treatment process. In this study, problems at each life cycle stage were identified, and improvements were proposed for the management of ELVs, including ELVP.

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全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

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