{"title":"Carbon Abatement Options for Large Iron and Steel Plants in India","authors":"Nishant Bhardwaj, Srinivas Seethamraju, Santanu Bandyopadhyay","doi":"10.1016/j.jclepro.2024.144505","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144505","url":null,"abstract":"7% of global carbon dioxide (CO<sub>2</sub>) emissions are caused by the iron and steel industry. India produces 6% of the global crude steel, most of which comes from large steel plants using the blast furnace – basic oxygen furnace route and the natural gas – sponge iron – electric arc furnace route. This study investigates the carbon abatement potential and associated economics of major decarbonization options for the Indian iron and steel sector. These decarbonization options include improved energy efficiency, substitution of material and fuel, and adaptation of renewable energy. The marginal abatement and green premium curves, obtained through mass and energy balances of a typical iron and steel plant, incorporate the interdependency of measures and present the techno-economic aspects. The analysis shows that the blast furnace – basic oxygen furnace process can be completely decarbonized, with nearly 15.8% of the CO<sub>2</sub> emissions being eliminated without a net cost to the consumers. Similarly, 98.8% of the CO<sub>2</sub> emissions can be abated in the natural gas – sponge iron – electric arc furnace route. These results are expected to be helpful for policymakers and industry stakeholders in planning policy impetus and achieving net-zero targets for the Indian iron and steel sector.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"63 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832432","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}
Ricardo F.B. Pinho, Cláudio M.R. Almeida, Ana C. Fonseca, Luísa Durães
{"title":"Preparation of PET-based aerogels from post-consumer packaging waste","authors":"Ricardo F.B. Pinho, Cláudio M.R. Almeida, Ana C. Fonseca, Luísa Durães","doi":"10.1016/j.jclepro.2024.144509","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144509","url":null,"abstract":"In this work, a straightforward method to produce aerogels from recycled poly(ethylene terephthalate) (rPET) drinking water bottles is presented. It consists of dissolving the rPET, followed by precipitation and subsequent gelation, after which the aerogel is obtained by freeze-drying. Three types of rPET aerogels, unreinforced and reinforced with organic or inorganic fibers, were prepared using this method. The obtained aerogels have a porosity between 80 and 86% and a bulk density between 150 and 210 kg/m<sup>3</sup>. The resulting materials have good mechanical properties, with a Young's modulus between 1.5 and 3.5 MPa, and do not release particles when handled. They also show thermal insulation capability at the level of commercial thermal insulators (∼20-65 mW m<sup>-1</sup> K<sup>-1</sup>). The observed presence of macropores in the predominantly mesoporous structure can be useful for sound absorption. The developed aerogels represent a unique opportunity to value plastic waste by producing an advanced material, following the principles of the circular economy.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"22 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832416","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}
Bhavesh Kumar, Avinash Kumar, Claudio Sassanelli, Love Kumar
{"title":"Exploring the Role of Finance in Driving Circular Economy and Sustainable Business Practices","authors":"Bhavesh Kumar, Avinash Kumar, Claudio Sassanelli, Love Kumar","doi":"10.1016/j.jclepro.2024.144480","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144480","url":null,"abstract":"The existing economic system is mainly founded on a linear approach to gaining capital, including mining natural resources, manufacturing, consumption, and disposal. Despite the increasing attention given to the Circular Economy (CE), currently, scholarly analysis is absent into the function of finance and the prospective utility of financial developments in expediting the adoption of CE principles. Through a systematic literature review (SLR), this research aims to present a comprehensive understanding of the nexus between finance and the CE, emphasising how financial innovations can accelerate the transition towards CE. Considering 150 articles, it was found that financial innovation is a powerful driver for the transition towards a CE. Indeed, financial innovation enables organisations to integrate CE principles and environmental, social, and governance (ESG) elements into their strategic decision-making. This research unveils the need for more research and innovation in the financial sector to develop advanced financial instruments and mechanisms that can support CE acceleration. The acceleration of the global transition towards a sustainable, resource-efficient, and resilient economic model that benefits enterprises and society can be facilitated by promoting financial innovations. The analysis is grounded on the idea of CE as based on the tenets of designing out waste and pollution, keeping materials and resources in use, and regenerating natural systems. It turns out that CE is affected by a variety of factors with a final result of positive impact on the environment and society: green bonds, green loans, and finance; pay-for-performance and results-based financing mechanisms; specialised financing solution/CE-focused funds and investment strategies; and fintech in driving the CE. Finally, this study further provides new insights into the role of fintech, AI, and ML in advancing circular finance and scrutinising the hurdles and barriers to implementing circular finance practices.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"1 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832429","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}
Sadaf Gachkar, Darya Gachkar, Erfan Ghofrani, Antonio García Martínez, Cecilio Angulo Bahon
{"title":"Text-based algorithms for automating life cycle inventory analysis in building sector life cycle assessment studies","authors":"Sadaf Gachkar, Darya Gachkar, Erfan Ghofrani, Antonio García Martínez, Cecilio Angulo Bahon","doi":"10.1016/j.jclepro.2024.144448","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144448","url":null,"abstract":"Life Cycle Assessment (LCA) is essential for evaluating the environmental impact of sustainable activities in industry. Despite its importance, there exist challenges negatively impacting its deployment, particularly the time-consuming process of gathering inventory data. This research introduces a novel framework that leverages advanced text-based algorithms from Natural Language Processing (NLP), significantly enhancing the efficiency of data collection in LCA studies. Focusing on the inventory phase, the novelty of this research lies in its ability to reduce data collection time by an estimated 80%–90% compared to conventional methods and improve accuracy by directly extracting materials from bills of quantities (BoQs), which usually list all the construction materials. While our methodology shows promise, it faces challenges due to project complexity, particularly the need for consistent terminology between BoQ and reference databases, though future advancements in matching algorithms may enhance our approach’s efficiency. Real-world case studies demonstrate the framework’s effectiveness, offering flexibility across industries and system complexities.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"85 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142832424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Does the joint prevention and control of the atmospheric policy on pollution improve environmental performance? Based on the quasi-natural experiment of \"2+26\" CERs in China","authors":"Sicen Liu, Shu Liang, Zhuang Miao, Chuanwang Sun","doi":"10.1016/j.jclepro.2024.144484","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144484","url":null,"abstract":"The joint prevention and control of atmospheric pollution (JPCAP) policy is a critical initiative for China to shift from territorial-based management to cross-regional environmental collaboration, which may have prominent impacts on environmental performance. Utilizing prefecture-level panel data from 2003 to 2018, this study adopts the DEA-Luenberger framework to evaluate the static and dynamic environmental performance of the industrial sector in the \"2+26\" CERs. A Difference-in-Differences (DID) model is applied to investigate the impact of the JPCAP policy on environmental performance. We observe that an upward trend in <em>atmospheric environmental efficiency (EE) and atmospheric environmental total factor productivity (AETFP)</em> growth, and there are significant differences across cities and variables. Industrial SO<sub>2</sub> (0.58%), industrial smoke and dust (0.28%), and excessive energy use in industry (0.31%) are crucial sources of regional atmospheric environmental inefficiency in urban industrial systems. The result indicates that the JPCAP policy significantly promotes environmental performance growth with time lag effect. Robustness and endogeneity tests confirm the reliability of these findings. The mechanism analysis reveals that the impact of JPCAP policy on <em>AETFP</em> growth is mainly achieved through green technology, innovation, and financial development. This study encourages local governments in \"2+26\" CERs to devise and implement more tailored and diversified regulatory strategies informed by observed productivity patterns. Our findings offer a novel insight into how the JPCAP can enhance environmental performance improvement and provides empirical support for policymakers to strengthen interregional environmental protection mechanisms.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"32 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Salt Exposure and Emission Reduction Strategies in Typical Industrial Wastewater Treatment Processes","authors":"Xiong Ke, Huiling He, Zhi Qin, Tuo Wei, Acong Chen, Qing Wang, Guanglei Qiu, Chaohai Wei","doi":"10.1016/j.jclepro.2024.144470","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144470","url":null,"abstract":"Zero-discharge industrial wastewater treatment is an inevitable goal that enterprises seek for the green and sustainable development. However, the generation and treatment of mixed salt present an enormous challenge. This study, taking the practical case of coking wastewater treatment, analyzes the influencing factors of salt and proposes a load salt reduction strategy. The results show that chemical oxygen demand (COD) is the main factor for the change in salt content. When the influent COD of coking wastewater is 3863.93 ± 466.61 mg/L, the relationship between salt reduction (y) and the COD change rate (x) in the treatment process follows the ExpGro1 natural exponential function: y = -2.2378 × exp (-x/17.0839) + 2.2570, with a fitting degree of 0.9938. In the case where the economic and environmental benefits of this strategy are positive (with a maximum COD reduction of 0.5796 kg/m<sup>3</sup>), every 1.0 kg/m<sup>3</sup> reduction in COD will result in a reduction of 2.5002 ± 0.2980 mS/cm·m<sup>3</sup> in salinity, 3.7391 ± 0.9245 CNY/m<sup>3</sup> in operating costs, and 1.4989 ± 0.6509 kg CO<sub>2</sub>/m<sup>3</sup> in carbon emissions. Moreover, this study proves that the adsorption - oxic / hydrolytic & heterotrophic denitrification / oxic (A-OHO) process can effectively reduce the load salt. Other salt reduction strategies (technology salt reduction and cycle salt reduction) and the concept of strategic cooperative operation are also further explored.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"21 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823052","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}
Duanmei Song, Jiadong Yu, Jing Wu, Beikai Zhang, Jinhui Li
{"title":"In situ enhanced catalytic degradation behavior of antibiotics by graphite anodes from spent lithium-ion batteries: the unique role of self-doped metals","authors":"Duanmei Song, Jiadong Yu, Jing Wu, Beikai Zhang, Jinhui Li","doi":"10.1016/j.jclepro.2024.144495","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144495","url":null,"abstract":"The research on recycling secondary resources and addressing emerging pollutants has earned global interest. In this study, we recycled spent graphite (SG) from retired lithium-ion batteries (LIBs) and prepared graphite catalyst (PMG) via pyrolysis and mechanical activation for tetracycline hydrochloride (TC) adsorption. The carbon materials were characterized by various analysis methods, which illustrated SG contained self-doped metals (SDMs) like Cu, Fe, and synthesized PMG had an extensive specific surface area (237.2 m<sup>2</sup>/g). These unique properties made PMG a highly potential catalyst for aqueous antibiotics contamination. The results showed the rapid degradation of TC (2 min, 98.3%) with 0.5 vol.% H<sub>2</sub>O<sub>2</sub> and 250 mg/L TC and high adsorption capacity (495 mg/g) highlighted the exceptional catalytic activity of the PMG, mainly attributed to SDMs. Through studies of the mechanism, we found that TC degradation was driven by generated free radicals and singlet oxygen, with •O<sub>2</sub><sup>-</sup>/HO<sub>2</sub>• radicals playing a dominant role.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"50 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825742","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fate of heavy metals and importance of influencing factors during vermicomposting","authors":"Qingmiao Zhang, Xiaoming Guo, Qiang Zhang, Ziyan Li, Tongqian Zhao","doi":"10.1016/j.jclepro.2024.144499","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144499","url":null,"abstract":"Vermicomposting is a beneficial choice for weakening the ecological threat of various organic wastes. However, the complicated mechanisms of composting processes and the diverse biogeochemical fates of heavy metals (HMs) fractions limits the comprehensive understanding of vermicomposting. The vermicomposting experiment using cow manure, straw and superphosphate as the original materials was set up to clarify the variations of both total contents and occurrence forms of HMs (As, Cd, Co, Cr, Cu, Mn, Ni, V and Zn) and corresponding influencing factors in the composting products-earthworm system. The results showed that vermicomposting resulted in the 71.11% decrease in ammonium nitrogen (AN) and the 63.21% increase in nitrate nitrogen (NN), respectively. Co, Cu, V and Zn were released from earthworms to vermicomposting products. The bioconcentration factor (BCF) results showed that the migration efficiency of Zn (4.35) was much higher than that of other HMs (0.11-0.71). Both bioaccumulation and migration efficiency of HMs depends on the initial contents of HMs in both earthworms and raw composting materials. Vermicomposting altered the fraction redistribution of HMs by increasing the F5 form, F4 form of Co, Cu and V, as well as the F2 and F3 form. The BCF results showed the F1 (6.29), F2 (5.62) and F3 (7.49) form of As, as well as F1(4.46) form of Cr accumulated well by earthworms. Permutational multivariate analysis of variance (PERMANOVA) showed that earthworms significantly influenced the physicochemical properties (R<sup>2</sup>=11.84%, <em>P</em><0.001), as well as total contents (R<sup>2</sup>=38.46%, <em>P</em><0.001) and occurrence forms (R<sup>2</sup>=36.79%, <em>P</em><0.001) of HMs in the vermicomposting products. More importantly, random forest model, mantel-test and partial least squares path model all confirmed that pH and nitrogen had the important effects on HMs migration during vermicomposting, followed by organic carbon and the ratio of carbon to nitrogen. In conclusion, this study has strengthened the understanding of HMs fate during vermicomposting. Moreover, it is the first to rank the importance of factors influencing HMs migration during vermicomposting.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"30 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142825592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Urban Expansion and Agricultural Carbon Emission Efficiency: The Moderating Role of Land Property Rights Stability","authors":"Weixin Wang, Xukang Yin, Chenguang Wang, Mengying Zhuo","doi":"10.1016/j.jclepro.2024.144488","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144488","url":null,"abstract":"Agricultural carbon emissions constitute a significant share of global carbon emissions, emphasizing the critical need to enhance agricultural carbon emission efficiency (ACEE) as a key response to the global climate crisis. Rapid urban expansion (UE) has reshaped agricultural production practices and inevitably affects agricultural carbon emissions. However, existing research has inadequately examined the connection between UE and ACEE. This study empirically analyzes the impact of UE on ACEE and the moderating effect of land property rights stability (LPRS) using panel data from 260 cities in China spanning the years 2012–2021. The results reveal a nonlinear, inverted U-shaped relationship between UE and ACEE. This result remains robust after considering endogeneity issues, spatial spillover effects, and a series of robustness checks. The analysis of heterogeneity reveals that the negative influence of UE on ACEE becomes apparent at later stages in regions characterized by elevated levels of economic development and farmer income. Conversely, there is no notable heterogeneity observed regarding the variations in government environmental regulation intensity. Furthermore, the study highlights the positive role of LPRS. The research results provide theoretical and empirical evidence for promoting rational UE and improving ACEE.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"29 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Towards a just circular transition: Fostering principles and stakeholder roles in sustainable partnerships","authors":"Philippe Eiselein, Mychal Langenus","doi":"10.1016/j.jclepro.2024.144450","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144450","url":null,"abstract":"Developing sustainable partnerships is deemed crucial and timely for advancing circular economy transition efforts. Yet, academic literature signals a need for additional insights into stakeholder roles and their impact on social and environmental justice. The Quintuple Helix Model offers a framework to analyze how stakeholders from the five ‘helices’ can collaborate to overcome sustainability difficulties. Using an embedded multiple case study design, this exploratory paper proposes a set of 10 principles and 11 stakeholder roles for fostering a just circular economy transition, whilst recognizing the complexity of real-world sustainable partnerships. This paper further discusses challenges that may endanger the maintenance of sustainable partnerships such as conflicting or misaligned stakeholder interests, power imbalances, competition, lack of trust, conflict, or resource constraints. The paper extends the Quintuple Helix Model's applicability toward circular transitions, by introducing fostering principles and stakeholder roles that facilitate a just circular transition. Managerial and policy recommendations are formulated to nurture sustainable partnerships that foster a just circular transition.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"19 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142823056","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}