Resources Environment and Sustainability最新文献

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Environmental responsibilities embodied in consumption behavior: A comparison between urban and rural residents in China 消费行为中体现的环境责任:中国城乡居民的比较
IF 12.4
Resources Environment and Sustainability Pub Date : 2025-01-06 DOI: 10.1016/j.resenv.2025.100189
Qiting Zuo , Zhizhuo Zhang , Qingsong Wu , Yihu Ji , Junxia Ma
{"title":"Environmental responsibilities embodied in consumption behavior: A comparison between urban and rural residents in China","authors":"Qiting Zuo ,&nbsp;Zhizhuo Zhang ,&nbsp;Qingsong Wu ,&nbsp;Yihu Ji ,&nbsp;Junxia Ma","doi":"10.1016/j.resenv.2025.100189","DOIUrl":"10.1016/j.resenv.2025.100189","url":null,"abstract":"<div><div>The environmental impacts of consumption behavior are not evenly distributed across different groups. Here, we develop an analytical framework by integrating input–output analysis, Lorenz curves drawing, spatial disequilibrium decomposition, and geographic transfer identification, enabling quantify the disparities in environmental responsibilities between urban and rural residents’ consumption behaviors. This framework is applied to China, the most populous country globally, for case study integrating three key dimensions: water consumption, fossil energy usage, and carbon emissions. The water resource, energy, and climate responsibilities associated with the urban residents’ consumption behavior were 2.68–2.92, 3.08–3.40, and 3.12–3.46 times that of rural residents in the three investigable years. Rural per capita consumption environmental footprints were less than half of urban residents. Provinces representing 20% of China’s urban and rural population generate 27%–36% of the country’s blue water, fossil energy, and carbon footprints. The spatial disequilibrium of residents’ consumption environmental responsibilities is significant but shows a weakening trend. Coastal developed regions tend to be net inflow areas of embodied water, fossil energy, and carbon dioxide, transferring embodied environmental pressures to inland regions. A progressive consumption footprint tax policy that considers contribution to economic growth is a potential approach for redistributing the consumption responsibilities between urban and rural residents.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100189"},"PeriodicalIF":12.4,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Promoting soil management ways: Bioelectrochemical technology 促进土壤管理方式:生物电化学技术
IF 12.4
Resources Environment and Sustainability Pub Date : 2025-01-04 DOI: 10.1016/j.resenv.2025.100191
Xin Yu , Xiaolin Zhang , Side Yang , Xiaodong Zhao , Kai Wang , Iranzi Emile Rushimisha , Ziyuan Zhou , Xiaojing Li , Yongtao Li
{"title":"Promoting soil management ways: Bioelectrochemical technology","authors":"Xin Yu ,&nbsp;Xiaolin Zhang ,&nbsp;Side Yang ,&nbsp;Xiaodong Zhao ,&nbsp;Kai Wang ,&nbsp;Iranzi Emile Rushimisha ,&nbsp;Ziyuan Zhou ,&nbsp;Xiaojing Li ,&nbsp;Yongtao Li","doi":"10.1016/j.resenv.2025.100191","DOIUrl":"10.1016/j.resenv.2025.100191","url":null,"abstract":"<div><div>Electron transport derived from microbial self-generation or consumption is a fundamental oxidation–reduction force for matter transformation and energy communication. The most abundant quantity and species of microorganisms are present in soil, and the ecological functions of microbial electron transfer coupled with soil evolution processes as well as the main element cycles have received increasing attention. Developing soil bioelectrochemical system (BES) is a convenient and efficient approach for the sustainable management of soil environment. In this review, the effects of element transformations, including carbon, nitrogen, iron, and sulfur, were examined, with a primary focus on the efficiency of a soil BES in monitoring biocurrent conduction. Moreover, the factors affecting the soil BES were summarized from the perspective of physical, chemical and biological processes. The ecological functions of soil biocurrent conduction for removing pollutants, amending alkaline acidification, desalination, detoxifying heavy metals, reducing methane emissions, and increasing soil fertility were subsequently reviewed. Finally, knowledge gaps and perspectives involving the identification of electroactive microorganisms, electron transport pathways, the regulation of element cycles, and key applications of soil BES were proposed. Overall, soil BES would provide versatile support to improve the environmental control approach and agricultural sustainability.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100191"},"PeriodicalIF":12.4,"publicationDate":"2025-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sustainable water and emissions management in agriculture: The water-emissions-food nexus in China 农业可持续用水和排放管理:中国的水-排放-粮食关系
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-23 DOI: 10.1016/j.resenv.2024.100187
Yang Liu , Maria Vrachioli , Huimei Li , Yafei Wang , Johannes Sauer
{"title":"Sustainable water and emissions management in agriculture: The water-emissions-food nexus in China","authors":"Yang Liu ,&nbsp;Maria Vrachioli ,&nbsp;Huimei Li ,&nbsp;Yafei Wang ,&nbsp;Johannes Sauer","doi":"10.1016/j.resenv.2024.100187","DOIUrl":"10.1016/j.resenv.2024.100187","url":null,"abstract":"<div><div>Studying the water-emissions-food nexus (WEF Nexus) is crucial for the sustainability of agricultural economic systems. The multi-regional input–output (MRIO) model provides insights for water-emissions-food integrated collaborative management. This study develops a detailed agriculture-oriented MRIO model based on the RAS method, which disaggregates the agricultural sector into 12 sub-sectors. The water consumption and greenhouse gas (GHG) emissions are allocated to the entire supply chain to identify the key regions and routes of the WEF Nexus in China for 2017. Then the environmental output level of the agricultural sector and its sub-sectors is analyzed using productivity indicators. Results demonstrate that the agricultural sector exhibits a strongly connected WEF Nexus (coefficient of 0.87), particularly in Coastal and Southwest regions. The synergistic relationship between water and emissions suggests significant opportunities for implementing integrated management strategies. 73.3% of virtual water and 71.7% of embodied emissions are concentrated in downstream non-agricultural sectors of supply chains, highlighting the substantial impact of trade transmission on the environment. The water and emissions productivity in the agricultural sector are spatially aligned except in the Central and Southwest regions. As significant agricultural output regions, Northeast and Central regions have lower water or emissions productivity, making sustainable agricultural development more challenging. Therefore, practical measures should focus on promoting technological innovation and its adoption to enhance water use efficiency and reduce GHG emissions in agricultural production.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100187"},"PeriodicalIF":12.4,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uncovering the evolution of vanadium cycle in China during 2000–2022 2000-2022年中国钒循环演化
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-21 DOI: 10.1016/j.resenv.2024.100188
Dong Wu , Yong Geng , Ziyan Gao , Yifan Wu
{"title":"Uncovering the evolution of vanadium cycle in China during 2000–2022","authors":"Dong Wu ,&nbsp;Yong Geng ,&nbsp;Ziyan Gao ,&nbsp;Yifan Wu","doi":"10.1016/j.resenv.2024.100188","DOIUrl":"10.1016/j.resenv.2024.100188","url":null,"abstract":"<div><div>Vanadium has been classified as one critical metal by multiple countries. China has the largest vanadium reserve and production capacity in the world and plays a vital role in the global vanadium supply chain. This study aims to uncover China’s vanadium cycle and market features for the period of 2000–2022 by applying dynamic material flow analysis method. The results show that the supply of vanadium had increased more than tenfold from 2000 to 2022, with an accumulated amount of 856 Kt. The majority of vanadium were used for meeting with the domestic demand (679 Kt). Vanadium-containing steel alloys dominated the largest share (87%), while the demand for vanadium redox flow battery increased rapidly, with an average annual growth rate of 21%. Secondary vanadium resources were predominantly recovered from the slags generated from the production stage, with a smaller share from the old scraps collected from end-of-life vanadium-containing products. China mainly imported primary vanadium resources from developing countries and exported intermediate products to developed countries. However, vanadium trade was seriously disrupted by the global financial crisis in 2008 and the recent COVID-19 pandemic. Several policies are proposed to promote stable supply and sustainable utilization of vanadium resources from the perspectives of economic incentives, technological development, industrial adjustment, trade structure and strategic reserve.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100188"},"PeriodicalIF":12.4,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Knowledge-guided machine learning for improving crop yield projections of waterlogging effects under climate change 基于知识引导的机器学习改进气候变化下内涝影响的作物产量预测
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-10 DOI: 10.1016/j.resenv.2024.100185
Linchao Li , Qinsi He , Matthew Tom Harrison , Yu Shi , Puyu Feng , Bin Wang , Yajie Zhang , Yi Li , De Li Liu , Guijun Yang , Meixue Zhou , Qiang Yu , Ke Liu
{"title":"Knowledge-guided machine learning for improving crop yield projections of waterlogging effects under climate change","authors":"Linchao Li ,&nbsp;Qinsi He ,&nbsp;Matthew Tom Harrison ,&nbsp;Yu Shi ,&nbsp;Puyu Feng ,&nbsp;Bin Wang ,&nbsp;Yajie Zhang ,&nbsp;Yi Li ,&nbsp;De Li Liu ,&nbsp;Guijun Yang ,&nbsp;Meixue Zhou ,&nbsp;Qiang Yu ,&nbsp;Ke Liu","doi":"10.1016/j.resenv.2024.100185","DOIUrl":"10.1016/j.resenv.2024.100185","url":null,"abstract":"<div><div>Extreme precipitation poses a significant threat to crop production, often underestimated by process-based models. State-of-the-art models also struggle with high-resolution spatial applications due to process complexity. Here, we developed a Knowledge-Guided Machine Learning (KGML) framework that integrates machine learning with a waterlogging-enabled APSIM (Agricultural Production Systems sIMulator) to simulate wheat yield change under climate change in the Yangtze River Basin, China. Using transfer learning, this KGML framework transferred waterlogging processes to eight gridded crop models, enabling more accurate yield projections. We found that KGML could accurately replicate the behavior of the improved APSIM model under waterlogging conditions, achieving an R<sup>2</sup> of 0.83 and an RMSE of 272.3 kg/ha for yield loss simulations. Soil properties were identified as the primary factors influencing yield losses under waterlogging, highlighting the importance of optimizing soil conditions to mitigate the adverse impacts of excessive water. Across different scenarios, the improved crop model ensembles projected greater crop yield losses compared to the original simulated outputs, with additional losses (compared to the historical period) around 5.9%–7.3% during the two periods. Although global climate models were the primary source of uncertainty in T1 (2029–2059), crop models contributed more to uncertainty in T2 (2069–2099). The improved ensemble reduced uncertainty from crop models compared to the original. This study highlights the potential of KGML to improve crop models, offering valuable insights for climate impact assessments and resource management. We believe our results can help national and local authorities make informed crop yield decisions under climate change.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100185"},"PeriodicalIF":12.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Agrivoltaics as an SDG enabler: Trade-offs and co-benefits for food security, energy generation and emissions mitigation 农业发电作为可持续发展目标的推动者:粮食安全、能源生产和减排的权衡和共同利益
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-10 DOI: 10.1016/j.resenv.2024.100186
Ganesh Pandey , Sarah Lyden , Evan Franklin , Matthew Tom Harrison
{"title":"Agrivoltaics as an SDG enabler: Trade-offs and co-benefits for food security, energy generation and emissions mitigation","authors":"Ganesh Pandey ,&nbsp;Sarah Lyden ,&nbsp;Evan Franklin ,&nbsp;Matthew Tom Harrison","doi":"10.1016/j.resenv.2024.100186","DOIUrl":"10.1016/j.resenv.2024.100186","url":null,"abstract":"<div><div>Agrivoltaic systems (AVS) – wherein solar photovoltaics (PV) and agriculture are co-located on the same land parcel – offer a sustainable approach to achieving the Sustainable Development Goals (SDGs) by enabling concurrent renewable electricity and agri-food production. Here, we elucidate plausible co-benefits and trade-offs of agri-food production and electricity generation in AVS across manifold socio-enviro-economic contexts, with the aim of understanding the contextualized interplay between AVS implementation and progress towards the SDGs. We modeled three AVS designs with varying solar panel densities (high, mid, low) at case study locations in Australia, Chad, and Iran using various models (System Advisor Model for PV and GrassGro for livestock systems). The findings suggest that in regions conducive to high biomass production per unit area, such as in parts of Australia, AVS design with high solar panel density can reduce meat production by almost 50%, which can jeopardize food security and impede achieving SDG 2 (Zero Hunger). In these regions, AVS design with low solar panel density enables meeting SDGs aligned with agri-food production and renewable energy generation. In contrast, in semi-arid regions, such as Iran, AVS design with a high density of solar panels can improve agricultural production via the alleviation of water deficit, thereby supporting the prioritization of solar power generation, with food production as a co-benefit. In developing countries such as Chad, AVS can enhance economic development by providing electricity, food, and financial benefits. We call for policymakers to incentivize AVS deployment in such regions and stimulate public and private investment to enable progress towards SDGs.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100186"},"PeriodicalIF":12.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A review on the industrial waste based adsorbents for the removal of pollutants from water: Modification methods and adsorption study 工业废渣基吸附剂去除水中污染物的研究进展:改性方法及吸附研究
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-09 DOI: 10.1016/j.resenv.2024.100183
Guofei Liu , Ye Li , Jie Hou , Yajun Wang , Dasong Lin
{"title":"A review on the industrial waste based adsorbents for the removal of pollutants from water: Modification methods and adsorption study","authors":"Guofei Liu ,&nbsp;Ye Li ,&nbsp;Jie Hou ,&nbsp;Yajun Wang ,&nbsp;Dasong Lin","doi":"10.1016/j.resenv.2024.100183","DOIUrl":"10.1016/j.resenv.2024.100183","url":null,"abstract":"<div><div>Human activities have discharged large quantities of pollutants into the water body. Industrial wastes have demonstrated potential for water remediation, and further modifications can enhance their sorption capacities for pollutants. Over the past few decades, various modification techniques have been conducted to improve the sorption performance of industrial wastes and achieved encouraging results. However, the limited availability of relevant summaries hinders our ability to gain a deeper and more detailed understanding of the advantages of modification methods, restricting the advancement of industrial wastes modification. Therefore, an extensive list of various modification techniques for industrial waste materials were compiled and their adsorption capacities under optimal conditions for the removal of pollutants were presented in this review. Modification categories and their effects on the adsorption mechanism were introduced in detail along with discussing the key advancement on the preparation of adsorbents. Furthermore, knowledge gaps, uncertainties, and future challenges involved in the fabrication of modified industrial wastes based adsorbents are also identified. This review provides an important insight on using industrial waste materials for preparing adsorbents in water remediation, which will give quite valuable information for developing industrial waste based adsorbents.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"19 ","pages":"Article 100183"},"PeriodicalIF":12.4,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143167193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Insights into carbon and nitrogen footprints of large-scale intensive pig production with different feedstuffs in China 中国不同饲料集约化养猪业碳氮足迹分析
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-12-01 DOI: 10.1016/j.resenv.2024.100181
Huijun Wu , Yongxin Liu , Ling Zhang , Huimin Zhu , Weixin Fang , Wei Mei
{"title":"Insights into carbon and nitrogen footprints of large-scale intensive pig production with different feedstuffs in China","authors":"Huijun Wu ,&nbsp;Yongxin Liu ,&nbsp;Ling Zhang ,&nbsp;Huimin Zhu ,&nbsp;Weixin Fang ,&nbsp;Wei Mei","doi":"10.1016/j.resenv.2024.100181","DOIUrl":"10.1016/j.resenv.2024.100181","url":null,"abstract":"<div><div>Through the whole process of large-scale pig production, feed production puts great environmental pressure in terms of greenhouse gas (GHG) emissions and nitrogen (N) emission. Additionally, different feedstuffs will have different results. While previous studies seldom analyzed carbon footprint and nitrogen footprint from feed components or diet choices. Thus, we selected China, the largest producer and consumer of pork in the world, to analyze both nitrogen footprint and carbon footprint through the life cycle of pig production with different feed components. We used life-cycle environmental footprint and scenario analysis to compare carbon footprints, nitrogen footprints, and feed prices of large-scale pig production with different feedstuffs in China. The life cycle of the pig production includes feed crop cultivation, feed processing, pig raising, and manure management. The functional unit is the weight of 1 kg of live pig. The results showed that the carbon footprints, nitrogen footprints, and feed prices ranged from 1.67 kg CO<sub>2</sub>-eq FU<sup>−1</sup> to 1.70 kg CO<sub>2</sub>-eq FU<sup>−1</sup>, 35.3 g Nr FU<sup>−1</sup> to 38.9 g Nr FU<sup>−1</sup>, and 1.42 CNY kg <sup>−1</sup> to 2.15 CNY kg <sup>−1</sup>, respectively. Feed crop production and manure management contributed the largest carbon footprint (54%) and the largest nitrogen footprint (64%), respectively. The four scenarios exhibited various results. Scenario 3 (S3), substituting soybean meal in the original feed with distillers dried grains with soluble (DDGS), presented a more favorable outcome with respect to carbon and nitrogen footprints as well as feed prices. This was mainly attributed to feed crop cultivation, manure management, crude protein contents of feeds, and prices of the feed crops. Concerning the uneven feed crop production, number of pig farrowed, feed consumption, and inter-provincial transportation across China, we conducted the spatial analysis under the optimal S3. It revealed that the northern provinces in China exhibited both higher carbon and nitrogen footprints than the southern provinces, due to the northern regions cultivating the crop feed. Finally, we proposed recommendations from perspectives of cultivation practice, feed adjustment, manure management, and strategic zoning. The study not only highlighted the importance of environmental footprint for analyzing environmental impacts of pig production, but also provided the implications for enhancing the sector’s environmental sustainability from perspective of feed adjustment.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"18 ","pages":"Article 100181"},"PeriodicalIF":12.4,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143093317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Electrochemical recycling of recycled concrete powder: Selective recovery of calcium and silica to enable sustainable construction materials 回收混凝土粉末的电化学再循环:选择性回收钙和硅,实现可持续建筑材料
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-11-20 DOI: 10.1016/j.resenv.2024.100182
Zheng Fang , Guangqi Xiong , Zongxuan Shao , Shuai Zhou , Guangfeng Ou , Lei Liu , Michio Suzuki , Chong Wang , Yuya Sakai
{"title":"Electrochemical recycling of recycled concrete powder: Selective recovery of calcium and silica to enable sustainable construction materials","authors":"Zheng Fang ,&nbsp;Guangqi Xiong ,&nbsp;Zongxuan Shao ,&nbsp;Shuai Zhou ,&nbsp;Guangfeng Ou ,&nbsp;Lei Liu ,&nbsp;Michio Suzuki ,&nbsp;Chong Wang ,&nbsp;Yuya Sakai","doi":"10.1016/j.resenv.2024.100182","DOIUrl":"10.1016/j.resenv.2024.100182","url":null,"abstract":"<div><div>Rapid urbanization produces billions of tons of concrete waste annually, with recycled concrete powder (RCP) posing significant challenges due to its high porosity and limited reusability. To overcome RCP’s inherent limitations and maximize resource utilization, we developed a novel “Recycled Concrete Powder Electrolyzer” for selective recovery of key components. This electrochemical method efficiently extracted Ca<sup>2+</sup> ions from RCP, achieving a 96% calcium extraction efficiency comparable to acid leaching. The process produced high-purity portlandite (94% purity; 65.58% yield) with crystal sizes below <span><math><mrow><mn>30</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>, ideal for cement manufacturing, while also recovering fine sand powder and silica-containing products. A Ca(NO<sub>3</sub>)<sub>2</sub> electrolyte enhanced Ca<sup>2+</sup> migration and prevented membrane fouling, resulting in lower energy consumption compared to the NaNO<sub>3</sub> system. By converting RCP into a carbon-free cement precursor and recovering valuable components, this approach demonstrates the feasibility of transforming problematic waste into sustainable construction materials. It offers a circular economy solution for concrete waste recycling, reducing landfill burden while providing a low-emission alternative for cement production.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"18 ","pages":"Article 100182"},"PeriodicalIF":12.4,"publicationDate":"2024-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142722473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of asymmetric policies to achieve emissions reduction on energy trade: A North American perspective 实现减排的不对称政策对能源贸易的影响:北美视角
IF 12.4
Resources Environment and Sustainability Pub Date : 2024-11-15 DOI: 10.1016/j.resenv.2024.100179
Sara Giarola , Iván García Kerdan , Peter Johnston , Nick Macaluso , Baltazar Solano Rodriguez , Ilkka Keppo , Adam Hawkes , David Daniels
{"title":"Effects of asymmetric policies to achieve emissions reduction on energy trade: A North American perspective","authors":"Sara Giarola ,&nbsp;Iván García Kerdan ,&nbsp;Peter Johnston ,&nbsp;Nick Macaluso ,&nbsp;Baltazar Solano Rodriguez ,&nbsp;Ilkka Keppo ,&nbsp;Adam Hawkes ,&nbsp;David Daniels","doi":"10.1016/j.resenv.2024.100179","DOIUrl":"10.1016/j.resenv.2024.100179","url":null,"abstract":"<div><div>The implementation of asymmetric emission reduction policies can not only increase the cost of reducing emissions but also reduce the effectiveness of climate policies themselves, leading to policy inefficiencies such as carbon leakage. This paper investigates the impact of asymmetric emission reduction policies on the cost-effectiveness and efficiency of climate strategies in North America. Using a model inter-comparison approach, which combines two bottom-up global models and one top-down global model, this study assesses the effects of such policies on fuel substitution, global fossil fuel trade, and emissions in North America and globally. It is the first work where a multi-model approach is used for exploring how different energy systems react to asymmetric carbon policies. This provides critical insights into regional policy design within a global emissions framework. Quantitatively, the study reveals that asymmetric carbon pricing can lead to more than 60% global emissions reduction in certain models, but can also drive trade distortions, where U.S. exemptions result in emissions rising by more than 10% compared to reference scenarios. Qualitatively, significant fuel substitution patterns across Canada, Mexico, and the U.S. demonstrate increased coal consumption when carbon prices are unevenly applied. While no global emission increase was observed, asymmetric policies result in inefficiencies between local policy costs and emissions reduction outcomes, such as rising fossil fuel trade in non-abating regions. The findings suggest that harmonising carbon policies across regions would reduce inefficiencies and minimise carbon leakage.</div></div>","PeriodicalId":34479,"journal":{"name":"Resources Environment and Sustainability","volume":"18 ","pages":"Article 100179"},"PeriodicalIF":12.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142698525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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