Pub Date : 2025-07-16DOI: 10.1016/j.rcradv.2025.200278
Rebeka Frueholz , Sabine Spiess , Jan Eisbacher-Lubensky , Clemens Habermaier , Georg M. Guebitz , Josephine Mueller , Marianne Haberbauer
The growing demand for recycling strategies intended for electric arc furnace (EAF) dusts to recover secondary raw materials calls for innovative approaches that align with environmentally compatible practices. For the recovery of Zn, biogenic sulfuric acid was produced utilizing A. thiooxidans in a reactor in a fed-batch mode. The acid was then used in leaching experiments endeavoring to determine optimal leaching parameters for an efficient Zn extraction while retaining Fe in the dust matrix. At 30 °C, 100 g L−1 pulp density, and at a leaching duration of 10 min, a concentration of 30 g L−1 of Zn equivalent to a leaching efficiency of 76.67 % was found in the leachate while only 0.02 % of the Fe went into solution, indicating a good separation of these two metals. To purify the leaching solution, 48 % Fe was precipitated by adjusting the pH to 3.8 using NaOH. The extraction of Zn from the leachate was then achieved using a microbial electrolysis cell (MEC) with a two-chamber H-cell setup, with the chambers being separated by a proton exchange membrane. The average Zn recovery from the leachate was 99.9 ± 0.1 % and a final Zn purity on the electrode of 99.2 % was achieved.
对电弧炉（EAF）粉尘回收二次原料的回收战略的需求不断增长，要求采用与环境相容的做法相一致的创新方法。为了回收锌，利用硫氧化铁在反应器中以进料间歇方式生产生物硫酸。然后将该酸用于浸出实验，努力确定最佳浸出参数，以有效提取锌，同时保留粉尘基质中的铁。在30°C、100 g L−1矿浆密度、10 min浸出时间条件下，浸出液中锌浓度为30 g L−1，浸出效率为76.67%，而铁只有0.02%进入溶液，两者分离效果良好。为了提纯浸出液，用NaOH调节pH为3.8，沉淀48%的铁。然后使用微生物电解池（MEC）从渗滤液中提取锌，该电解池具有两室h池设置，两室由质子交换膜分开。浸出液锌的平均回收率为99.9±0.1%，电极上锌的最终纯度为99.2%。
{"title":"Zn recovery from steel mill EAF dusts: A two-step biotechnological approach","authors":"Rebeka Frueholz , Sabine Spiess , Jan Eisbacher-Lubensky , Clemens Habermaier , Georg M. Guebitz , Josephine Mueller , Marianne Haberbauer","doi":"10.1016/j.rcradv.2025.200278","DOIUrl":"10.1016/j.rcradv.2025.200278","url":null,"abstract":"<div><div>The growing demand for recycling strategies intended for electric arc furnace (EAF) dusts to recover secondary raw materials calls for innovative approaches that align with environmentally compatible practices. For the recovery of Zn, biogenic sulfuric acid was produced utilizing <em>A. thiooxidans</em> in a reactor in a fed-batch mode. The acid was then used in leaching experiments endeavoring to determine optimal leaching parameters for an efficient Zn extraction while retaining Fe in the dust matrix. At 30 °C, 100 g L<sup>−</sup><sup>1</sup> pulp density, and at a leaching duration of 10 min, a concentration of 30 g L<sup>−</sup><sup>1</sup> of Zn equivalent to a leaching efficiency of 76.67 % was found in the leachate while only 0.02 % of the Fe went into solution, indicating a good separation of these two metals. To purify the leaching solution, 48 % Fe was precipitated by adjusting the pH to 3.8 using NaOH. The extraction of Zn from the leachate was then achieved using a microbial electrolysis cell (MEC) with a two-chamber H-cell setup, with the chambers being separated by a proton exchange membrane. The average Zn recovery from the leachate was 99.9 ± 0.1 % and a final Zn purity on the electrode of 99.2 % was achieved.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200278"},"PeriodicalIF":5.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144704502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-16DOI: 10.1016/j.rcradv.2025.200277
Zhi Min Zhang, Chengzheng Yu, Jingting Li
This study examines the effects of China’s 2018 ban on waste imports on water quality in Guangdong Province. Using a difference-in-differences approach, we explore variations in both time and waste imports across different river sections before and after the policy implementation. The findings indicate that regions with pollution permits experienced greater improvements in water quality after the policy implementation. The ban led to significant reductions in the concentrations of mercury (13.67 %,), lead (46.32 %), copper (46.21 %), and zinc (28.15 %). These effects were particularly evident in areas with weaker environmental regulations and limited capacity for waste processing. Further analysis reveals that the reduced industrial production and stronger regulatory enforcement are the main mechanisms driving the policy impact on the improvement of water quality.
{"title":"Waste import ban and water pollution: Evidence from rivers in Guangdong Province, China","authors":"Zhi Min Zhang, Chengzheng Yu, Jingting Li","doi":"10.1016/j.rcradv.2025.200277","DOIUrl":"10.1016/j.rcradv.2025.200277","url":null,"abstract":"<div><div>This study examines the effects of China’s 2018 ban on waste imports on water quality in Guangdong Province. Using a difference-in-differences approach, we explore variations in both time and waste imports across different river sections before and after the policy implementation. The findings indicate that regions with pollution permits experienced greater improvements in water quality after the policy implementation. The ban led to significant reductions in the concentrations of mercury (13.67 %,), lead (46.32 %), copper (46.21 %), and zinc (28.15 %). These effects were particularly evident in areas with weaker environmental regulations and limited capacity for waste processing. Further analysis reveals that the reduced industrial production and stronger regulatory enforcement are the main mechanisms driving the policy impact on the improvement of water quality.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200277"},"PeriodicalIF":5.4,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144685740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-07-10DOI: 10.1016/j.rcradv.2025.200275
Gabriel Lucas Bandeira , Marcos Ferasso , Ubiratã Tortato
Small and Medium-Sized Enterprises (SMEs) are making strenuous efforts to implement Circular Economy (CE) practices. However, some challenges keep these businesses from switching from a 'take-make-dispose' linear economy to a closed loop with zero waste. In this strand, one such issue is related to the companies’ requirements to understand the level of circularity in their operations. Thus, this paper aims to develop a CE maturity framework for SMEs. The framework draws upon three main phases, encompassing a set of qualitative and quantitative methods. Phase I involves the planning efforts to determine the framework’s audience and scope; Phase II is the development stage concerned with identifying the current state of the art related to CE and developing the theoretical framework for SMEs; Phase III is associated with the framework’s evaluation process, in which an expert panel review was applied to guarantee its robustness and consistency. The work proposes the Circular Economy Maturity Framework (CEMAF), composed of five dimensions: take, make, distribute, use and recover. These dimensions are deployed in sub-dimensions measured with several maturity items and supported by objective evidence. The weighted average of results supported the development of a CE maturity index, enabling companies to benchmark with others. The overall contribution of the research is to introduce a framework for the literature that considers SMEs’ ofter-limited resources, helping practitioners to evaluate and manage CE, and allowing companies to reach higher levels of circularity.
{"title":"Circular economy maturity framework for SMEs","authors":"Gabriel Lucas Bandeira , Marcos Ferasso , Ubiratã Tortato","doi":"10.1016/j.rcradv.2025.200275","DOIUrl":"10.1016/j.rcradv.2025.200275","url":null,"abstract":"<div><div>Small and Medium-Sized Enterprises (SMEs) are making strenuous efforts to implement Circular Economy (CE) practices. However, some challenges keep these businesses from switching from a 'take-make-dispose' linear economy to a closed loop with zero waste. In this strand, one such issue is related to the companies’ requirements to understand the level of circularity in their operations. Thus, this paper aims to develop a CE maturity framework for SMEs. The framework draws upon three main phases, encompassing a set of qualitative and quantitative methods. Phase I involves the planning efforts to determine the framework’s audience and scope; Phase II is the development stage concerned with identifying the current state of the art related to CE and developing the theoretical framework for SMEs; Phase III is associated with the framework’s evaluation process, in which an expert panel review was applied to guarantee its robustness and consistency. The work proposes the Circular Economy Maturity Framework (CEMAF), composed of five dimensions: <em>take, make, distribute, use</em> and <em>recover</em>. These dimensions are deployed in sub-dimensions measured with several maturity items and supported by objective evidence. The weighted average of results supported the development of a CE maturity index, enabling companies to benchmark with others. The overall contribution of the research is to introduce a framework for the literature that considers SMEs’ ofter-limited resources, helping practitioners to evaluate and manage CE, and allowing companies to reach higher levels of circularity.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200275"},"PeriodicalIF":5.4,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144633507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The construction industry remains one of the most significant contributors to global energy consumption and CO2 emission, with construction and demolition waste management emerging as a critical leverage point for environmental improvement. This study employs a hybrid approach that integrates System Dynamics (SD) modelling with Random Forest (RF) algorithm to optimize concrete waste management systems. The analysis encompasses the entire waste processing lifecycle—including demolition, sorting, transportation, recycling, and landfilling—with specific focus on material recovery, landfill use, energy consumption, and CO2eq emissions. Findings revealed that transportation and demolition account for the majority of energy use and emissions. However, strategic interventions such as expanding recycling infrastructure, transitioning to natural gas and electric trucks, and optimizing truck load capacity can reduce energy consumption and emissions by 20–30 %. Additionally, the adoption of demolition robots further decreases energy use by 18 % and emissions by 47 %. By enhancing material processing efficiency and increasing the use of recycled concrete in new construction, this study reinforces circular economy principles. This study provides a quantitative basis for policy measures aimed at promoting upcycling, improving energy efficiency, and supporting net-zero emission goals in construction sector.
{"title":"Sustainable waste management of construction materials: Mathematical modelling and analysis","authors":"Mayowa Emmanuel Bamisaye , Babatunde Oluwaseun Ajayi , Issara Sereewatthanawut","doi":"10.1016/j.rcradv.2025.200274","DOIUrl":"10.1016/j.rcradv.2025.200274","url":null,"abstract":"<div><div>The construction industry remains one of the most significant contributors to global energy consumption and CO<sub>2</sub> emission, with construction and demolition waste management emerging as a critical leverage point for environmental improvement. This study employs a hybrid approach that integrates System Dynamics (SD) modelling with Random Forest (RF) algorithm to optimize concrete waste management systems. The analysis encompasses the entire waste processing lifecycle—including demolition, sorting, transportation, recycling, and landfilling—with specific focus on material recovery, landfill use, energy consumption, and CO<sub>2eq</sub> emissions. Findings revealed that transportation and demolition account for the majority of energy use and emissions. However, strategic interventions such as expanding recycling infrastructure, transitioning to natural gas and electric trucks, and optimizing truck load capacity can reduce energy consumption and emissions by 20–30 %. Additionally, the adoption of demolition robots further decreases energy use by 18 % and emissions by 47 %. By enhancing material processing efficiency and increasing the use of recycled concrete in new construction, this study reinforces circular economy principles. This study provides a quantitative basis for policy measures aimed at promoting upcycling, improving energy efficiency, and supporting net-zero emission goals in construction sector.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200274"},"PeriodicalIF":5.4,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144670225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Struvite (MgNH₄PO₄·6H₂O) is a sustainable, slow-release fertilizer with significant potential for nutrient recycling. However, its large-scale production remains economically constrained due to the high costs of primary components, mainly nitrogen (N), phosphorus (P), and magnesium (Mg). Biochar, on the other hand, is commonly used for soil enrichment and carbon sequestration, which typically lacks sufficient nutrient content to function as a standalone fertilizer. This review explores an integrated approach to struvite production by incorporating biochar and waste-derived resources, specifically, farm waste (rich in N and P) and industrial wastewater (rich in Mg). Surface-modified Mg-biochar functions both as a Mg source and an effective adsorbent, enhancing nutrient adsorption, struvite crystallization, and retention. The review highlights alternative nutrient sources, Mg-biochar preparation methods, nutrient recovery mechanisms on the biochar surface, and the agronomic potential of biochar-struvite composites. This review supports the principles of a circular economy by transforming waste into value-added, slow-release fertilizers. The resulting biochar-struvite composite offers a promising strategy for pollution mitigation, improved crop productivity and sustainable nutrient management.
{"title":"Biochar-seeded struvite production from combination of on-farm and industrial wastewater: A review","authors":"Moh Moh Thant Zin , Manobendro Sarker , Teng-Teeh Lim","doi":"10.1016/j.rcradv.2025.200273","DOIUrl":"10.1016/j.rcradv.2025.200273","url":null,"abstract":"<div><div>Struvite (MgNH₄PO₄·6H₂O) is a sustainable, slow-release fertilizer with significant potential for nutrient recycling. However, its large-scale production remains economically constrained due to the high costs of primary components, mainly nitrogen (N), phosphorus (P), and magnesium (Mg). Biochar, on the other hand, is commonly used for soil enrichment and carbon sequestration, which typically lacks sufficient nutrient content to function as a standalone fertilizer. This review explores an integrated approach to struvite production by incorporating biochar and waste-derived resources, specifically, farm waste (rich in N and P) and industrial wastewater (rich in Mg). Surface-modified Mg-biochar functions both as a Mg source and an effective adsorbent, enhancing nutrient adsorption, struvite crystallization, and retention. The review highlights alternative nutrient sources, Mg-biochar preparation methods, nutrient recovery mechanisms on the biochar surface, and the agronomic potential of biochar-struvite composites. This review supports the principles of a circular economy by transforming waste into value-added, slow-release fertilizers. The resulting biochar-struvite composite offers a promising strategy for pollution mitigation, improved crop productivity and sustainable nutrient management.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200273"},"PeriodicalIF":5.4,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144605216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Industrial Symbiosis Readiness Level Matrix (ISRLM) tool presented in this paper, was developed to address the challenges inherent in implementing and managing Industrial Symbiosis (IS) networks. IS networks are complex systems involving diverse actors with varying levels of preparedness, perspectives, and priorities, which can result in miscommunication, inefficiencies, and slow implementation and development. To overcome these challenges, the ISRLM tool provides a structured framework for evaluating and visualizing IS readiness, facilitating discussions among actors, creating mutual understanding, and coordinating decision-making. The development of the ISRLM tool followed an iterative process that combined rigorous literature reviews, co-design through stakeholder interviews and workshops, as well as testing and validation within existing IS networks. Drawing on established concepts of readiness level evaluation and incorporating feedback and suggestions of improvement from practitioners and academics, the tool was refined through multiple cycles of testing and evaluation. This co-design approach ensured the tool's relevance and usability across various IS contexts. The ISRLM tool is developed as an interactive Excel-based tool that generates visual outputs based on actors’ evaluation of perceived readiness. It supports IS networks by guiding the implementation process, identifying readiness gaps, and enabling continuous evaluation and improvement. Applicable during both the initiation and development phases of IS collaborations, the tool can enhance trust, help align priorities, as well as guide and accelerate progress toward shared goals.
{"title":"Industrial symbiosis readiness level assessment—A stakeholder co-designed matrix tool for guidance and evaluation","authors":"Lovisa. Harfeldt-Berg , Elin. Wallin , Annika. Löwgren , Per. Sommarin","doi":"10.1016/j.rcradv.2025.200270","DOIUrl":"10.1016/j.rcradv.2025.200270","url":null,"abstract":"<div><div>The Industrial Symbiosis Readiness Level Matrix (ISRLM) tool presented in this paper, was developed to address the challenges inherent in implementing and managing Industrial Symbiosis (IS) networks. IS networks are complex systems involving diverse actors with varying levels of preparedness, perspectives, and priorities, which can result in miscommunication, inefficiencies, and slow implementation and development. To overcome these challenges, the ISRLM tool provides a structured framework for evaluating and visualizing IS readiness, facilitating discussions among actors, creating mutual understanding, and coordinating decision-making. The development of the ISRLM tool followed an iterative process that combined rigorous literature reviews, co-design through stakeholder interviews and workshops, as well as testing and validation within existing IS networks. Drawing on established concepts of readiness level evaluation and incorporating feedback and suggestions of improvement from practitioners and academics, the tool was refined through multiple cycles of testing and evaluation. This co-design approach ensured the tool's relevance and usability across various IS contexts. The ISRLM tool is developed as an interactive Excel-based tool that generates visual outputs based on actors’ evaluation of perceived readiness. It supports IS networks by guiding the implementation process, identifying readiness gaps, and enabling continuous evaluation and improvement. Applicable during both the initiation and development phases of IS collaborations, the tool can enhance trust, help align priorities, as well as guide and accelerate progress toward shared goals.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200270"},"PeriodicalIF":5.4,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-20DOI: 10.1016/j.rcradv.2025.200271
Şanser Güz, Shinsuke Murakami
The accelerating global energy transition has heightened the demand for critical energy transition minerals which are essential for renewable energy technologies such as energy storage systems, electric vehicles, and equipment for wind and solar power. Simulation modeling has emerged as an important tool for exploring the complexities of critical minerals, assessing future availability, and informing sustainable resource management strategies. This study presents a systematic literature review of 91 simulation studies to provide a comprehensive structured overview and a practical reference to existing simulation approaches in this rapidly growing field while identifying remaining gaps in the literature. Studies are classified by simulation method, featured mineral type, geographic scope, temporal focus, and thematic focus. Our findings reveal that system dynamics and dynamic material flow analysis are the most commonly employed methods, with a growing trend toward hybrid modeling. While lithium, cobalt, nickel, and copper are frequently studied, minerals like graphite remain underrepresented. Furthermore, social and ecological impacts are often underexplored. We highlight the need for interdisciplinary simulation approaches that integrate social, economic, and environmental dimensions to address interconnected challenges of energy transitions, socio-environmental sustainability, and resource management.
{"title":"A systematic literature review of simulation models for flows, markets, and sustainability of critical energy transition minerals","authors":"Şanser Güz, Shinsuke Murakami","doi":"10.1016/j.rcradv.2025.200271","DOIUrl":"10.1016/j.rcradv.2025.200271","url":null,"abstract":"<div><div>The accelerating global energy transition has heightened the demand for critical energy transition minerals which are essential for renewable energy technologies such as energy storage systems, electric vehicles, and equipment for wind and solar power. Simulation modeling has emerged as an important tool for exploring the complexities of critical minerals, assessing future availability, and informing sustainable resource management strategies. This study presents a systematic literature review of 91 simulation studies to provide a comprehensive structured overview and a practical reference to existing simulation approaches in this rapidly growing field while identifying remaining gaps in the literature. Studies are classified by simulation method, featured mineral type, geographic scope, temporal focus, and thematic focus. Our findings reveal that system dynamics and dynamic material flow analysis are the most commonly employed methods, with a growing trend toward hybrid modeling. While lithium, cobalt, nickel, and copper are frequently studied, minerals like graphite remain underrepresented. Furthermore, social and ecological impacts are often underexplored. We highlight the need for interdisciplinary simulation approaches that integrate social, economic, and environmental dimensions to address interconnected challenges of energy transitions, socio-environmental sustainability, and resource management.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200271"},"PeriodicalIF":5.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-20DOI: 10.1016/j.rcradv.2025.200272
Wim Van Opstal , Nancy Bocken , Jan Brusselaers
Shifting towards a circular economy in the built environment is considered an important step toward fostering environmentally sustainable and socially resilient cities. Housing cooperatives, established to provide affordable and democratically governed housing, may offer structural advantages for embedding circularity - but their role in circular transitions remains underexplored. This study investigates how cooperative governance may influence the implementation of circular strategies, including circular design, product-service systems, and shared resource models, across different housing types. Drawing on semi-structured interviews with housing professionals, cooperative representatives, service providers, and policymakers, we assess the comparative institutional advantages and limitations of cooperatives in enabling circular transitions. Our findings indicate that housing cooperatives can mitigate market failures and overcome split incentives through collective ownership, long-term planning, and participatory governance. These features help facilitate lifecycle-based investments, bundled procurement, and shared infrastructure. However, cooperatives also face key challenges, including complex decision-making, limited access to finance, and regulatory barriers. This paper contributes to the understanding of alternative housing models for urban sustainability by offering insights into how cooperative-led initiatives can support circular innovation. It identifies boundary conditions for aligning stakeholder perspectives and embedding circular strategies within cooperative housing, helping to inform inclusive, community-based responses to climate and resource challenges.
{"title":"Enabling and embedding circularity goals in housing cooperatives","authors":"Wim Van Opstal , Nancy Bocken , Jan Brusselaers","doi":"10.1016/j.rcradv.2025.200272","DOIUrl":"10.1016/j.rcradv.2025.200272","url":null,"abstract":"<div><div>Shifting towards a circular economy in the built environment is considered an important step toward fostering environmentally sustainable and socially resilient cities. Housing cooperatives, established to provide affordable and democratically governed housing, may offer structural advantages for embedding circularity - but their role in circular transitions remains underexplored. This study investigates how cooperative governance may influence the implementation of circular strategies, including circular design, product-service systems, and shared resource models, across different housing types. Drawing on semi-structured interviews with housing professionals, cooperative representatives, service providers, and policymakers, we assess the comparative institutional advantages and limitations of cooperatives in enabling circular transitions. Our findings indicate that housing cooperatives can mitigate market failures and overcome split incentives through collective ownership, long-term planning, and participatory governance. These features help facilitate lifecycle-based investments, bundled procurement, and shared infrastructure. However, cooperatives also face key challenges, including complex decision-making, limited access to finance, and regulatory barriers. This paper contributes to the understanding of alternative housing models for urban sustainability by offering insights into how cooperative-led initiatives can support circular innovation. It identifies boundary conditions for aligning stakeholder perspectives and embedding circular strategies within cooperative housing, helping to inform inclusive, community-based responses to climate and resource challenges.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200272"},"PeriodicalIF":5.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-19DOI: 10.1016/j.rcradv.2025.200269
Md Faysal Tareq, Sebastiaan Deetman, Arnold Tukker
Maintaining a constant macro-infrastructure stock requires significant material resources, which incurs an environmental cost. This study presents a detailed database of material stocks (steel, concrete, and asphalt) for macro-infrastructure (transport, energy, water, and utilities infrastructure) in The Netherlands. Using a bottom-up material stock accounting approach at high (25m² grid) resolution, we analyze the macro-infrastructure distribution across spatial and temporal scales. We examine 39 detailed infrastructure types in highway, railway, oil and gas, water, and utility aggregated infrastructure categories. Since 1950, material stocks have increase over fourteenfold, driven mainly by asphalt use in highways. Urban areas exhibit 3–4 times lower per capita stocks than rural areas, while material density per km² is 4–5 times higher in urban areas. Decomposition analysis reveals strong economic influences on historical stock growth. This research supports the sustainable transition of macro-infrastructure by quantifying existing material stocks, identifying growth factors, anticipate future needs, promoting circularity, and guiding investments.
{"title":"Evaluating the development of macro infrastructural stocks in the Netherlands: Assessing factors driving historical material stocks growth","authors":"Md Faysal Tareq, Sebastiaan Deetman, Arnold Tukker","doi":"10.1016/j.rcradv.2025.200269","DOIUrl":"10.1016/j.rcradv.2025.200269","url":null,"abstract":"<div><div>Maintaining a constant macro-infrastructure stock requires significant material resources, which incurs an environmental cost. This study presents a detailed database of material stocks (steel, concrete, and asphalt) for macro-infrastructure (transport, energy, water, and utilities infrastructure) in The Netherlands. Using a bottom-up material stock accounting approach at high (25m² grid) resolution, we analyze the macro-infrastructure distribution across spatial and temporal scales. We examine 39 detailed infrastructure types in highway, railway, oil and gas, water, and utility aggregated infrastructure categories. Since 1950, material stocks have increase over fourteenfold, driven mainly by asphalt use in highways. Urban areas exhibit 3–4 times lower per capita stocks than rural areas, while material density per km² is 4–5 times higher in urban areas. Decomposition analysis reveals strong economic influences on historical stock growth. This research supports the sustainable transition of macro-infrastructure by quantifying existing material stocks, identifying growth factors, anticipate future needs, promoting circularity, and guiding investments.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200269"},"PeriodicalIF":5.4,"publicationDate":"2025-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144471381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-06-17DOI: 10.1016/j.rcradv.2025.200268
Edzhe Soylu , Stefanie Lode , Camilo M. Silva , Kristina Ryeng Simavik , Kai Erik Ekstrøm , Inge Johansson , Bjørn Eske Sørensen , Przemyslaw B. Kowalczuk , Gabriella Tranell
Despite extensive research on municipal solid waste incineration (MSWI) fly ash (FA) and air pollution control ash (APCA), comprehensive studies employing multiple characterization techniques remain limited. This study evaluates an extensive suite of analytical methods to characterize MSWI FA and APCA before and after water washing. Washing effectively removed soluble salts (e.g., NaCl, KCl), increasing stable phases like CaCO₃ and silicates, with variations dependent on ash origin and phase solubility. Washing also reduced particle size variability, yielding more uniform distributions. Chemical analyses demonstrated portable X-ray fluorescence (PXRF) as a reliable, cost-effective alternative to ICP-MS for elements including Al, Ca, Cu, Fe, P, and Zn, though weaker correlations for Pb, Si, and S suggest the need for more precise methods. Automated mineralogy showed sample-specific phase distributions: rotary kiln (RK) ash contained abundant ultrafine, unclassified matrix that increased post-washing, while grate furnace (GF) samples were dominated by lime, gypsum, and Ca-Si-Al phases, with washing reducing Cl-bearing and gypsum phases and slightly increasing reacted silicates. The circular fluidized bed (CFB) sample predominantly contained lime, and Ca-Cl-O and related reacted phases, showing minimal changes after washing. Minor metals such as Zn and Cu appeared heterogeneously distributed, bound within discrete or embedded phases, whereas bulk elements (Al, Ca, Mg, Si, Na) were uniformly integrated into the matrix. The findings emphasize the importance of combining multiple analytical techniques to achieve comprehensive characterization of MSWI ashes, bridging rapid screening with detailed analysis.
尽管对城市生活垃圾焚烧（MSWI）飞灰（FA）和大气污染控制灰（APCA）进行了广泛的研究，但采用多种表征技术的综合研究仍然有限。本研究评估了一套广泛的分析方法，以表征水洗涤前后的MSWI FA和APCA。洗涤有效地去除了可溶性盐（如NaCl、KCl），增加了稳定相，如CaCO₃和硅酸盐，其变化取决于灰源和相溶解度。洗涤也减少了颗粒大小的可变性，产生更均匀的分布。化学分析表明，便携式x射线荧光（PXRF）是一种可靠、经济的ICP-MS方法，可用于检测Al、Ca、Cu、Fe、P和Zn等元素，但对Pb、Si和S的相关性较弱，表明需要更精确的方法。自动化矿物学显示了样品的相分布特征：回转窑（RK）灰中含有大量的超细、未分类的基体，洗后增加，而篦炉（GF）样品以石灰、石膏和Ca-Si-Al相为主，洗后减少了含cl相和石膏相，反应硅酸盐略有增加。循环流化床（CFB）样品主要含有石灰、Ca-Cl-O及相关反应相，洗涤后变化极小。少量金属如Zn和Cu表现出非均匀分布，结合在离散相或嵌入相中，而大块元素（Al, Ca, Mg, Si, Na）则均匀地集成到基体中。研究结果强调了结合多种分析技术来全面表征城市生活垃圾灰的重要性，将快速筛选与详细分析联系起来。
{"title":"Comprehensive characterization of solid waste incineration fly ash before and after salt washing: evaluating analytical methods for sustainable waste management","authors":"Edzhe Soylu , Stefanie Lode , Camilo M. Silva , Kristina Ryeng Simavik , Kai Erik Ekstrøm , Inge Johansson , Bjørn Eske Sørensen , Przemyslaw B. Kowalczuk , Gabriella Tranell","doi":"10.1016/j.rcradv.2025.200268","DOIUrl":"10.1016/j.rcradv.2025.200268","url":null,"abstract":"<div><div>Despite extensive research on municipal solid waste incineration (MSWI) fly ash (FA) and air pollution control ash (APCA), comprehensive studies employing multiple characterization techniques remain limited. This study evaluates an extensive suite of analytical methods to characterize MSWI FA and APCA before and after water washing. Washing effectively removed soluble salts (e.g., NaCl, KCl), increasing stable phases like CaCO₃ and silicates, with variations dependent on ash origin and phase solubility. Washing also reduced particle size variability, yielding more uniform distributions. Chemical analyses demonstrated portable X-ray fluorescence (PXRF) as a reliable, cost-effective alternative to ICP-MS for elements including Al, Ca, Cu, Fe, P, and Zn, though weaker correlations for Pb, Si, and S suggest the need for more precise methods. Automated mineralogy showed sample-specific phase distributions: rotary kiln (RK) ash contained abundant ultrafine, unclassified matrix that increased post-washing, while grate furnace (GF) samples were dominated by lime, gypsum, and Ca-Si-Al phases, with washing reducing Cl-bearing and gypsum phases and slightly increasing reacted silicates. The circular fluidized bed (CFB) sample predominantly contained lime, and Ca-Cl-O and related reacted phases, showing minimal changes after washing. Minor metals such as Zn and Cu appeared heterogeneously distributed, bound within discrete or embedded phases, whereas bulk elements (Al, Ca, Mg, Si, Na) were uniformly integrated into the matrix. The findings emphasize the importance of combining multiple analytical techniques to achieve comprehensive characterization of MSWI ashes, bridging rapid screening with detailed analysis.</div></div>","PeriodicalId":74689,"journal":{"name":"Resources, conservation & recycling advances","volume":"27 ","pages":"Article 200268"},"PeriodicalIF":5.4,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365865","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号