Traditional material design focuses primarily on performance, properties, structure, and synthesis. Growing environmental awareness necessitates the integration of sustainability considerations into material design and selection. This paper introduced an approach that embeds the eco-design method within material comparison to balance performance requirements and environmental sustainability. Five types of aluminum alloys were examined to demonstrate and validate the proposed method. The alloys are commonly used in shipbuilding and have varying contents of the rare earth element Erbium. The alloys were assessed through a performance-requirement matrix, life cycle assessment, and exergy calculation to evaluate their performance, environmental impact, and resource consumption. A binary integrated decision model was created to compare the five alloys based on either their performance and environmental impact or their performance and resource consumption. Additionally, ternary integrated decision models were formulated to yield a comprehensive analysis of the five alloys, considering all three aforementioned factors. A matrix model was established to allow for comparative assessment no matter how many indicators are involved. Furthermore, a model based on the enumeration method was presented to mitigate the bias introduced by weighting factors. This methodological approach aids in selecting the most suitable alloys for diverse scenarios, thereby enhancing the sustainability of material design.
{"title":"Integrating Sustainability into Material Design and Selection through Eco-Design: A Case Study on Aluminum Alloy Plates","authors":"Mingyang Li, Feng Gao, Mingzhou Jin, Boxue Sun, Yu Liu, Xianzheng Gong, Zuoren Nie","doi":"10.1016/j.jclepro.2024.144191","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144191","url":null,"abstract":"Traditional material design focuses primarily on performance, properties, structure, and synthesis. Growing environmental awareness necessitates the integration of sustainability considerations into material design and selection. This paper introduced an approach that embeds the eco-design method within material comparison to balance performance requirements and environmental sustainability. Five types of aluminum alloys were examined to demonstrate and validate the proposed method. The alloys are commonly used in shipbuilding and have varying contents of the rare earth element Erbium. The alloys were assessed through a performance-requirement matrix, life cycle assessment, and exergy calculation to evaluate their performance, environmental impact, and resource consumption. A binary integrated decision model was created to compare the five alloys based on either their performance and environmental impact or their performance and resource consumption. Additionally, ternary integrated decision models were formulated to yield a comprehensive analysis of the five alloys, considering all three aforementioned factors. A matrix model was established to allow for comparative assessment no matter how many indicators are involved. Furthermore, a model based on the enumeration method was presented to mitigate the bias introduced by weighting factors. This methodological approach aids in selecting the most suitable alloys for diverse scenarios, thereby enhancing the sustainability of material design.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"9 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596572","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144175
Hadis Nasiri, Navid Khayat, Ahad Nazarpour
Achieving sustainable, cleaner production (CP) is essential for reducing industrial waste and conserving natural resources, especially in rapid industrialization. One of the significant environmental challenges is the remediation and effective utilization of contaminated soils. While substantial research has been conducted on coarse-grained contaminated soils, a critical knowledge gap exists regarding the impact of oil contamination on the stabilization and long-term performance of fine-grained soils. This knowledge gap is especially evident when assessing soil performance over extended periods (e.g., 365 days). This study addresses this gap by investigating both the macro- and microstructural behavior of oil-contaminated fine-grained soils under different stabilization conditions and extended curing durations. Our research introduces an innovative approach to utilizing oil-contaminated fine-grained soils resulting from pipeline leaks as sustainable materials for soil stabilization. This method mitigates environmental hazards and promotes resource conservation by converting waste into cleaner construction materials. A comprehensive series of laboratory tests—including compaction, unconfined compressive strength (UCS), durability, California bearing ratio (CBR), mineralogical analysis, and microstructural examinations—was performed to evaluate soils with varying oil concentrations (4%, 7%, and 10%) and different cement contents (0%, 3%, 6%, and 9%). Results showed that the sample containing 4% oil and 9% cement exhibited the highest durability after six wet-dry (W-D) cycles, with durability 7.3 times greater than that of non-stabilized samples. Higher cement contents also significantly improved crack resistance, corresponding with durability findings. Long-term curing (365 days) increased UCS by 6.4% to 8.5% in soils with 9% cement, highlighting the importance of extended curing for stabilizing oil-contaminated fine-grained soils. The microstructural analysis confirmed the formation of Calcium-Silicate-Hydrate (C-S-H), which is crucial for enhancing soil strength. These findings demonstrate the viability of this waste utilization strategy for future pavement stabilization, offering a cleaner production method that supports environmental sustainability and efficient resource management. The study provides a cost-effective solution for infrastructure projects by repurposing oil-contaminated soils as valuable construction materials by recycling industrial byproducts.
{"title":"Utilization of the Oil-contaminated Soil as a Sustainable Resource in Rural Road Construction and Rehabilitation in Oil-Producing Countries","authors":"Hadis Nasiri, Navid Khayat, Ahad Nazarpour","doi":"10.1016/j.jclepro.2024.144175","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144175","url":null,"abstract":"Achieving sustainable, cleaner production (CP) is essential for reducing industrial waste and conserving natural resources, especially in rapid industrialization. One of the significant environmental challenges is the remediation and effective utilization of contaminated soils. While substantial research has been conducted on coarse-grained contaminated soils, a critical knowledge gap exists regarding the impact of oil contamination on the stabilization and long-term performance of fine-grained soils. This knowledge gap is especially evident when assessing soil performance over extended periods (e.g., 365 days). This study addresses this gap by investigating both the macro- and microstructural behavior of oil-contaminated fine-grained soils under different stabilization conditions and extended curing durations. Our research introduces an innovative approach to utilizing oil-contaminated fine-grained soils resulting from pipeline leaks as sustainable materials for soil stabilization. This method mitigates environmental hazards and promotes resource conservation by converting waste into cleaner construction materials. A comprehensive series of laboratory tests—including compaction, unconfined compressive strength (UCS), durability, California bearing ratio (CBR), mineralogical analysis, and microstructural examinations—was performed to evaluate soils with varying oil concentrations (4%, 7%, and 10%) and different cement contents (0%, 3%, 6%, and 9%). Results showed that the sample containing 4% oil and 9% cement exhibited the highest durability after six wet-dry (W-D) cycles, with durability 7.3 times greater than that of non-stabilized samples. Higher cement contents also significantly improved crack resistance, corresponding with durability findings. Long-term curing (365 days) increased UCS by 6.4% to 8.5% in soils with 9% cement, highlighting the importance of extended curing for stabilizing oil-contaminated fine-grained soils. The microstructural analysis confirmed the formation of Calcium-Silicate-Hydrate (C-S-H), which is crucial for enhancing soil strength. These findings demonstrate the viability of this waste utilization strategy for future pavement stabilization, offering a cleaner production method that supports environmental sustainability and efficient resource management. The study provides a cost-effective solution for infrastructure projects by repurposing oil-contaminated soils as valuable construction materials by recycling industrial byproducts.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"33 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596573","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144183
Cong Zhang , Lihua Zhou , Junhao Li , Xiaodong Pei , Yige Li , Gui Shi
China, especially the northern agro-pastoral ecotone, is facing severe water scarcity, which presents a significant challenge for the agriculture sector, the largest consumer of water. This study selected Yanchi County as a typical area. First, the water footprint method is used to evaluate the water usage of food, cash, and feed crops in the region from 1990 to 2020. Then, the vector error correction model (VECM) is used to analyze the short-term effects and long-term effects of urbanization and planting structure on the water consumption of these three types of crops. The results show: 1) The total agricultural water footprint (WF) in Yanchi County, as well as the WFs of the predominantly grown food and feed crops, show an upward trend. Additionally, the proportion of blue WF is relatively high across all crop types. 2) Reducing the proportion of food crops will increase the WF of cash and feed crops, but it will not necessarily decrease the WF of food crops. 3) An increase in the level of urbanization may reduce the agricultural WF in the short term, but ultimately, it will lead to an increase in the WF. Overall, this study reveals the growing pressure on agricultural water use faced by the agro-pastoral ecotone during the processes of urbanization and planting structure transformation. It highlights the importance of developing rain-fed agriculture, seizing the technological development opportunities brought by urbanization, and reasonably adjusting the cropping structure for the sustainable use of water resources.
{"title":"Impact of urbanization and planting structure on water footprint of food, cash, and feed crops in China's northern agro-pastoral ecotone","authors":"Cong Zhang , Lihua Zhou , Junhao Li , Xiaodong Pei , Yige Li , Gui Shi","doi":"10.1016/j.jclepro.2024.144183","DOIUrl":"10.1016/j.jclepro.2024.144183","url":null,"abstract":"<div><div>China, especially the northern agro-pastoral ecotone, is facing severe water scarcity, which presents a significant challenge for the agriculture sector, the largest consumer of water. This study selected Yanchi County as a typical area. First, the water footprint method is used to evaluate the water usage of food, cash, and feed crops in the region from 1990 to 2020. Then, the vector error correction model (VECM) is used to analyze the short-term effects and long-term effects of urbanization and planting structure on the water consumption of these three types of crops. The results show: 1) The total agricultural water footprint (<em>WF</em>) in Yanchi County, as well as the <em>WFs</em> of the predominantly grown food and feed crops, show an upward trend. Additionally, the proportion of blue <em>WF</em> is relatively high across all crop types. 2) Reducing the proportion of food crops will increase the <em>WF</em> of cash and feed crops, but it will not necessarily decrease the WF of food crops. 3) An increase in the level of urbanization may reduce the agricultural <em>WF</em> in the short term, but ultimately, it will lead to an increase in the <em>WF</em>. Overall, this study reveals the growing pressure on agricultural water use faced by the agro-pastoral ecotone during the processes of urbanization and planting structure transformation. It highlights the importance of developing rain-fed agriculture, seizing the technological development opportunities brought by urbanization, and reasonably adjusting the cropping structure for the sustainable use of water resources.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144183"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596575","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144194
Hongda Zhang , Yunzhe Zhao , Haiyan Li , Jian Wang , Yong Yu
The regulation of single atom (SA) sites is crucial for the promotion of advanced oxidation processes (AOPs). Here A- and R-TiO2 with Co mixed sites (clusters and single atoms, CS) were prepared to degrade sulfamethoxazole (SMX) by activating peroxymonosulfate (PMS). Co CS/A-TiO2+PMS system can completely remove SMX within 14 min under secondary effluent and dark conditions, and its rate constant (0.4926 min−1) was 4.4, 3.2 and 2.5 times higher than that of Co SA/R-TiO2, Co SA/A-TiO2 and Co CS/R-TiO2 systems, respectively. Experiments and calculations verified that the electron configuration of Co SA was optimized by Co clusters, facilitating the adsorption, conversion and desorption of PMS by Co SA, leading to the enhancement of Fenton-like activity. Co CS/A-TiO2 catalytic sponges exhibited exceptional degradation performance in microreactor treatment experiment. This work reveals the synergistic effect between SA and clusters at atomic level and provides an all-purpose strategy (catalytic sponge) for the recovery of non-magnetic catalysts in wastewater treatment.
单原子（SA）位点的调节对于促进高级氧化过程（AOPs）至关重要。本文制备了具有 Co 混合位点（团簇和单原子，CS）的 A 型和 R 型二氧化钛，通过活化过一硫酸盐（PMS）来降解磺胺甲噁唑（SMX）。Co CS/A-TiO2+PMS体系在二次流出和黑暗条件下可在14分钟内完全去除SMX，其速率常数（0.4926 min-1）分别是Co SA/R-TiO2、Co SA/A-TiO2和Co CS/R-TiO2体系的4.4、3.2和2.5倍。实验和计算证实，Co 团簇优化了 Co SA 的电子构型，促进了 Co SA 对 PMS 的吸附、转化和解吸，从而提高了 Fenton 样活性。Co CS/A-TiO2 催化海绵在微反应器处理实验中表现出优异的降解性能。这项研究揭示了 SA 与簇在原子水平上的协同效应，并为废水处理中非磁性催化剂的回收提供了一种多功能策略（催化海绵）。
{"title":"The synergistic effect of Co atomic clusters and single atoms facilitates the Fenton-like reaction on A- and R-TiO2","authors":"Hongda Zhang , Yunzhe Zhao , Haiyan Li , Jian Wang , Yong Yu","doi":"10.1016/j.jclepro.2024.144194","DOIUrl":"10.1016/j.jclepro.2024.144194","url":null,"abstract":"<div><div>The regulation of single atom (SA) sites is crucial for the promotion of advanced oxidation processes (AOPs). Here A- and R-TiO<sub>2</sub> with Co mixed sites (clusters and single atoms, CS) were prepared to degrade sulfamethoxazole (SMX) by activating peroxymonosulfate (PMS). Co CS/A-TiO<sub>2</sub>+PMS system can completely remove SMX within 14 min under secondary effluent and dark conditions, and its rate constant (0.4926 min<sup>−1</sup>) was 4.4, 3.2 and 2.5 times higher than that of Co SA/R-TiO<sub>2</sub>, Co SA/A-TiO<sub>2</sub> and Co CS/R-TiO<sub>2</sub> systems, respectively. Experiments and calculations verified that the electron configuration of Co SA was optimized by Co clusters, facilitating the adsorption, conversion and desorption of PMS by Co SA, leading to the enhancement of Fenton-like activity. Co CS/A-TiO<sub>2</sub> catalytic sponges exhibited exceptional degradation performance in microreactor treatment experiment. This work reveals the synergistic effect between SA and clusters at atomic level and provides an all-purpose strategy (catalytic sponge) for the recovery of non-magnetic catalysts in wastewater treatment.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144194"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596509","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144184
Shiou-Yun Jeng , Chun-Wei R. Lin , Kanchana Sethanan , Hsun Wei Wang , Ming-Lang Tseng
This study proposes and constructs a model for a closed-loop farming system (CLFS) for pig manure waste reuse under circular economy principles (CEPs) to optimize economic benefits. Pig farming produces waste that harms the ecological environment in Taiwan. However, few studies have focused on pig farming waste within the context of CEPs, where the resource utilization of pig manure waste and CLFS are the main concerns. This study introduces a CLFS with a farming production plan that enhances systematic efficiency and builds a framework for resource reuse, supporting a local living circle. The resource utilization of pig manure waste is integrated into the CLFS, ensuring that the entire pig raising production process operates within the system, maximizing waste utilization to increase economic benefits. A sensitivity analysis is also presented. The results confirm that all counties and municipalities in Taiwan achieved self-sufficiency in pork production, reaching a 100% satisfaction rate for pork demand, and feed prices did not impact the overall CLFS.
{"title":"Circular economy-based integrated closed-loop farming system: A sensitivity analysis for profit optimization","authors":"Shiou-Yun Jeng , Chun-Wei R. Lin , Kanchana Sethanan , Hsun Wei Wang , Ming-Lang Tseng","doi":"10.1016/j.jclepro.2024.144184","DOIUrl":"10.1016/j.jclepro.2024.144184","url":null,"abstract":"<div><div>This study proposes and constructs a model for a closed-loop farming system (CLFS) for pig manure waste reuse under circular economy principles (CEPs) to optimize economic benefits. Pig farming produces waste that harms the ecological environment in Taiwan. However, few studies have focused on pig farming waste within the context of CEPs, where the resource utilization of pig manure waste and CLFS are the main concerns. This study introduces a CLFS with a farming production plan that enhances systematic efficiency and builds a framework for resource reuse, supporting a local living circle. The resource utilization of pig manure waste is integrated into the CLFS, ensuring that the entire pig raising production process operates within the system, maximizing waste utilization to increase economic benefits. A sensitivity analysis is also presented. The results confirm that all counties and municipalities in Taiwan achieved self-sufficiency in pork production, reaching a 100% satisfaction rate for pork demand, and feed prices did not impact the overall CLFS.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144184"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596577","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144138
Mateusz Jankiewicz
The subject of this study is the relationship between the households' consumption structure changes and sustainable development. This research was conducted for the European Union (EU) countries in the years 2008–2020. Additionally, in the investigation, the considered area is divided into two separate regimes: countries that joined the EU before 2000 (referred to as Old EU Member States) and countries that joined the EU later (called New EU Member States). It is widely known that the territorial units in the first regime are relatively wealthier than those in the second group. As a result of differences in wealth between the defined regimes, consumer behaviours can vary. Sustainable consumption (SC) is one of the major aspects of sustainable development. SC indicates consumer choices that are both intentional and effective, and these choices demonstrate a positive impact on environmental and/or social conditions. In this research, the influence of households' consumption changes on the environmental pillar of sustainable development is evaluated. Caring for the natural environment is one of the main challenges today. In this research, another approach to measure environmental development is proposed. So far, different types of footprints have been used. This analysis considers most of the environmental indicators defined in the Sustainable Development Goals (SDG's). The environmental development of EU countries is evaluated based on the synthetic measure of development proposed by Hellwig. Moreover, the spatio-temporal sensitivity models are estimated and verified. The sensitivity parameter of these models shows the impact of consumption structure changes on environmental development, wherein the consumption structure is categorized into four groups of goods: services, non-durable, semi-durable, and durable. The spatial autoregressive (SAR) models are also estimated and verified. The investigation results point out the differences in the influence of consumption structure changes on sustainable development depending on the considered group of countries.
{"title":"Changes in the European Union households' consumption structure and the sustainable development","authors":"Mateusz Jankiewicz","doi":"10.1016/j.jclepro.2024.144138","DOIUrl":"10.1016/j.jclepro.2024.144138","url":null,"abstract":"<div><div>The subject of this study is the relationship between the households' consumption structure changes and sustainable development. This research was conducted for the European Union (EU) countries in the years 2008–2020. Additionally, in the investigation, the considered area is divided into two separate regimes: countries that joined the EU before 2000 (referred to as Old EU Member States) and countries that joined the EU later (called New EU Member States). It is widely known that the territorial units in the first regime are relatively wealthier than those in the second group. As a result of differences in wealth between the defined regimes, consumer behaviours can vary. Sustainable consumption (SC) is one of the major aspects of sustainable development. SC indicates consumer choices that are both intentional and effective, and these choices demonstrate a positive impact on environmental and/or social conditions. In this research, the influence of households' consumption changes on the environmental pillar of sustainable development is evaluated. Caring for the natural environment is one of the main challenges today. In this research, another approach to measure environmental development is proposed. So far, different types of footprints have been used. This analysis considers most of the environmental indicators defined in the Sustainable Development Goals (SDG's). The environmental development of EU countries is evaluated based on the synthetic measure of development proposed by Hellwig. Moreover, the spatio-temporal sensitivity models are estimated and verified. The sensitivity parameter of these models shows the impact of consumption structure changes on environmental development, wherein the consumption structure is categorized into four groups of goods: services, non-durable, semi-durable, and durable. The spatial autoregressive (SAR) models are also estimated and verified. The investigation results point out the differences in the influence of consumption structure changes on sustainable development depending on the considered group of countries.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"481 ","pages":"Article 144138"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596576","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144187
Jinsu Kim , Shubham Jamdade , Yanhui Yuan , Matthew J. Realff
Increasing demands for sustainable and distributed freshwater sources drive the exploration of water extraction from ambient air. This study presents a comprehensive computational approach for optimizing unit harvesting cost of the adsorption-based atmospheric water extraction (AWE) systems. There are three objectives (i) assessing the impact of climate variability: utilizing k-means clustering, utilizing climate data in different regions to explore the effects of ambient conditions in dry-hot (California), humid-hot (Florida), and dry-cold (Wyoming) regions, resulting in a preference for harvesting under humid-hot conditions. (ii) performing kinetic analysis: The derived kinetic model connects climate variability to operational time and regeneration temperature, critical process design variables. (iii) assessing adsorption materials: three materials (MIL-100 (Fe), MOF-303, and ZJNU-30) were assessed revealing the impact of variations in maximum capacity and isotherm shape on performance and cost. The optimization algorithm uses a two stage stochastic programming approach to account for climate variability and enables an optimization that balances the capital and operating costs across a range of temperature and humidity conditions.
{"title":"Metal-organic frameworks for atmospheric water extraction: Kinetic analysis and stochastic programming under climate variability","authors":"Jinsu Kim , Shubham Jamdade , Yanhui Yuan , Matthew J. Realff","doi":"10.1016/j.jclepro.2024.144187","DOIUrl":"10.1016/j.jclepro.2024.144187","url":null,"abstract":"<div><div>Increasing demands for sustainable and distributed freshwater sources drive the exploration of water extraction from ambient air. This study presents a comprehensive computational approach for optimizing unit harvesting cost of the adsorption-based atmospheric water extraction (AWE) systems. There are three objectives (i) assessing the impact of climate variability: utilizing <em>k</em>-means clustering, utilizing climate data in different regions to explore the effects of ambient conditions in dry-hot (California), humid-hot (Florida), and dry-cold (Wyoming) regions, resulting in a preference for harvesting under humid-hot conditions. (ii) performing kinetic analysis: The derived kinetic model connects climate variability to operational time and regeneration temperature, critical process design variables. (iii) assessing adsorption materials: three materials (MIL-100 (Fe), MOF-303, and ZJNU-30) were assessed revealing the impact of variations in maximum capacity and isotherm shape on performance and cost. The optimization algorithm uses a two stage stochastic programming approach to account for climate variability and enables an optimization that balances the capital and operating costs across a range of temperature and humidity conditions.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144187"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596511","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}
Pub Date : 2024-11-09DOI: 10.1016/j.jclepro.2024.144190
P.G. Palafox-Alcantar , C. McElroy , P. Trotter , R. Khosla , A. Thomas , R. Karutz
As temperatures rise rapidly around the world, Cooling-as-a-Service (CaaS) promises to offer cooling solutions without requiring any initial outlay of funds. CaaS transfers the emphasis from ownership of cooling equipment to its prevision as a service by enabling users to pay for cooling according to usage. CaaS is an emerging servitization circular economy business model that is both attracting great attention and is not yet well-documented in the academic literature. Given that energy demand for cooling is set to triple in the upcoming decades, new cooling solutions are urgently needed to protect the thermal comfort, health and productivity of people around the world who will experience increased or new needs for cooling. Business model innovation for the servitization of cooling holds great potential to overcome existing barriers to the delivery of cooling that is accessible as well as energy and materially efficient. The paper's focus on cooling is a novel approach contributing to the limited information on how to implement servitization for sustainable energy transitions. The paper also contributes novel empirical insights about the current extent and varieties of CaaS. Through 32 qualitative interviews across 10 countries, we identify barriers and enablers of CaaS and discuss the degree to which these vary across different sectors and geographies of CaaS. From these findings we highlight key issues with CaaS implementation. 1) The complexity of measuring CaaS adoption worldwide. 2) The significance of geographical barriers and enablers for its growth. 3) The potential for Global South leadership with CaaS.
{"title":"Servitization for the energy transition: The case of enabling cooling-as-a-service (CaaS)","authors":"P.G. Palafox-Alcantar , C. McElroy , P. Trotter , R. Khosla , A. Thomas , R. Karutz","doi":"10.1016/j.jclepro.2024.144190","DOIUrl":"10.1016/j.jclepro.2024.144190","url":null,"abstract":"<div><div>As temperatures rise rapidly around the world, Cooling-as-a-Service (CaaS) promises to offer cooling solutions without requiring any initial outlay of funds. CaaS transfers the emphasis from ownership of cooling equipment to its prevision as a service by enabling users to pay for cooling according to usage. CaaS is an emerging servitization circular economy business model that is both attracting great attention and is not yet well-documented in the academic literature. Given that energy demand for cooling is set to triple in the upcoming decades, new cooling solutions are urgently needed to protect the thermal comfort, health and productivity of people around the world who will experience increased or new needs for cooling. Business model innovation for the servitization of cooling holds great potential to overcome existing barriers to the delivery of cooling that is accessible as well as energy and materially efficient. The paper's focus on cooling is a novel approach contributing to the limited information on how to implement servitization for sustainable energy transitions. The paper also contributes novel empirical insights about the current extent and varieties of CaaS. Through 32 qualitative interviews across 10 countries, we identify barriers and enablers of CaaS and discuss the degree to which these vary across different sectors and geographies of CaaS. From these findings we highlight key issues with CaaS implementation. 1) The complexity of measuring CaaS adoption worldwide. 2) The significance of geographical barriers and enablers for its growth. 3) The potential for Global South leadership with CaaS.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144190"},"PeriodicalIF":9.7,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596574","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}
Achieving sustainability involves implementing a circular economy model and decarbonizing the waste management sector. The development of innovative technologies that enable the reduction of emissions and resource recovery is one of the sector's greatest challenges. From this perspective, the waste-to-methanol (WtM) process represents a viable prospect, the potential environmental impacts of which have never been studied from a life-cycle perspective. A cradle-to-grave LCA analysis was conducted, studying WtM technology and its potential implementation of green hydrogen (WtM-GH) in the process, through a comparison with traditional waste-to-energy (WtE).
The results showed that WtM-GH performs best for global impacts, with a global warming potential of 3.52·107 kgCO2eq instead of 1,04·108 kgCO2eq proper of the WtE. Positive effects take place also for the fossil resource scarcity. Looking for non-toxic regional/local impacts WtE represents the best scenario, with the best performance on water consumption (7.96·107 m3) and ionising radiation (2.82·107 kBq Co-60eq). Cumulative impact results, obtained through the normalization, found that WtM is the best scenario, thanks to the less toxic impact compared to the other two, especially for freshwater ecotoxicity (5.26·106 kg 1,4-DCB) and marine ecotoxicity (6.73·106 kg 1,4-DCB).
WtM-GH allows the production of 1366 kg of methanol per ton of Refuse Derived Fuel, thanks to the conversion of the entire CO2 contained in the waste, enhancing the value of by-products and carbon credits on the market and making the process more economically sustainable.
{"title":"Environmental assessment of gasification and green hydrogen potential role in waste management decarbonization","authors":"Alessio Castagnoli , A.M. Salem , Umberto Desideri , Isabella Pecorini","doi":"10.1016/j.jclepro.2024.144174","DOIUrl":"10.1016/j.jclepro.2024.144174","url":null,"abstract":"<div><div>Achieving sustainability involves implementing a circular economy model and decarbonizing the waste management sector. The development of innovative technologies that enable the reduction of emissions and resource recovery is one of the sector's greatest challenges. From this perspective, the waste-to-methanol (WtM) process represents a viable prospect, the potential environmental impacts of which have never been studied from a life-cycle perspective. A cradle-to-grave LCA analysis was conducted, studying WtM technology and its potential implementation of green hydrogen (WtM-GH) in the process, through a comparison with traditional waste-to-energy (WtE).</div><div>The results showed that WtM-GH performs best for global impacts, with a global warming potential of 3.52·10<sup>7</sup> kgCO<sub>2eq</sub> instead of 1,04·10<sup>8</sup> kgCO<sub>2eq</sub> proper of the WtE. Positive effects take place also for the fossil resource scarcity. Looking for non-toxic regional/local impacts WtE represents the best scenario, with the best performance on water consumption (7.96·10<sup>7</sup> m<sup>3</sup>) and ionising radiation (2.82·10<sup>7</sup> kBq Co-60<sub>eq</sub>). Cumulative impact results, obtained through the normalization, found that WtM is the best scenario, thanks to the less toxic impact compared to the other two, especially for freshwater ecotoxicity (5.26·10<sup>6</sup> kg 1,4-DCB) and marine ecotoxicity (6.73·10<sup>6</sup> kg 1,4-DCB).</div><div>WtM-GH allows the production of 1366 kg of methanol per ton of Refuse Derived Fuel, thanks to the conversion of the entire CO<sub>2</sub> contained in the waste, enhancing the value of by-products and carbon credits on the market and making the process more economically sustainable.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"482 ","pages":"Article 144174"},"PeriodicalIF":9.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142652256","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}
Pub Date : 2024-11-08DOI: 10.1016/j.jclepro.2024.144160
Dharmendra Kumar Singh , Sandeep Kumar
This work explores the techno-economics of high ash coal gasification using circulating fluidized bed (CFB) gasifier technology at the Talaipalli Coal Mining Project, India being developed by NTPC Limited. The research employs the categorical boosting machine learning algorithm to predict syngas composition, yield, and lower heating value offering an innovative approach to optimize the gasification process. The work compares CFB gasification with conventional coal combustion and establishes it as the most suitable gasification technology due to its feedstock flexibility, technological maturity, and cost-effectiveness. A comprehensive financial analysis reveals a favorable net present value (NPV) of ₹ 20150 Million, an internal rate of return (IRR) of 9.54%, and a payback period of 8.3 years for a 65 MWth CFB gasifier. Sensitivity analysis highlights the influence of key factors such as syngas yield, capital costs, and selling price on financial viability. The environmental benefits, including reduced emissions and waste management, further underscore the value of coal gasification for sustainable energy production. This work aligns with government initiatives like the National Coal Gasification Mission, advocating future research in co-gasification and techno-economic assessments for similar projects.
{"title":"Techno-economics of high ash coal gasification: A machine learning approach using CatBoost model","authors":"Dharmendra Kumar Singh , Sandeep Kumar","doi":"10.1016/j.jclepro.2024.144160","DOIUrl":"10.1016/j.jclepro.2024.144160","url":null,"abstract":"<div><div>This work explores the techno-economics of high ash coal gasification using circulating fluidized bed (CFB) gasifier technology at the Talaipalli Coal Mining Project, India being developed by NTPC Limited. The research employs the categorical boosting machine learning algorithm to predict syngas composition, yield, and lower heating value offering an innovative approach to optimize the gasification process. The work compares CFB gasification with conventional coal combustion and establishes it as the most suitable gasification technology due to its feedstock flexibility, technological maturity, and cost-effectiveness. A comprehensive financial analysis reveals a favorable net present value (NPV) of ₹ 20150 Million, an internal rate of return (IRR) of 9.54%, and a payback period of 8.3 years for a 65 MW<sub>th</sub> CFB gasifier. Sensitivity analysis highlights the influence of key factors such as syngas yield, capital costs, and selling price on financial viability. The environmental benefits, including reduced emissions and waste management, further underscore the value of coal gasification for sustainable energy production. This work aligns with government initiatives like the National Coal Gasification Mission, advocating future research in co-gasification and techno-economic assessments for similar projects.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"481 ","pages":"Article 144160"},"PeriodicalIF":9.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596579","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}
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