Journal of Cleaner Production最新文献

{"title":"Reshaping regional carbon productivity in the Pearl River Delta megaregion: Input-output-based multi-objective optimization to explore low-carbon industrial transitions","authors":"Ya Zhou, Yin Mo, Heran Zheng, Yang Zhou, Zhenyu Wang, Sai Liang","doi":"10.1016/j.jclepro.2025.145436","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145436","url":null,"abstract":"The Pearl River Delta (PRD) megaregion has emerged as China's foremost polycentric area. The region strives to lead China's transition to industrial low-carbon reorientation. Achieving this goal necessitates cross-sectoral strategic development solutions that consider the intricate interconnections between cities within the region. In this study, we developed a novel MRIO-based multi-objective optimization framework to address the challenge of reshaping the region's carbon productivity. This framework explores the optimal planning pathways for multi-city industrial restructuring to achieve a more efficient regional low-carbon transition. Our findings suggest that reshaping the regional industrial structure would propel economic prosperity across all affiliated cities, with advanced manufacturing and modern service sectors having the potential to contribute over 75% of the region's GDP by 2035. The industrial restructuring would present opportunities for attaining the goal of reaching peak carbon emissions by 2030 and peak energy consumption by 2035 with higher production efficiency. Our study provides valuable insights into the development of industrial restructuring and decarbonization pathways for the PRD and other megaregions.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"38 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143797969","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":"The effects of blending diisopropanolamine and 2-amino-2-methyl-1-propanol for carbon dioxide capture process: Comparative study using thermodynamic modeling and artificial neural network predictions","authors":"Hail Sung, Sung-Chul Han, Pil Rip Jeon, Kyung-Min Kim","doi":"10.1016/j.jclepro.2025.145474","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145474","url":null,"abstract":"Amine-based absorption processes represents a promising strategy for CO₂ capture. This study systematically examined the CO₂ solubility, absorption behaviors, and regeneration energy (<em>Q</em>_{<em>regen</em>}) of aqueous blended-amine solutions of diisopropanolamine (DIPA) and 2-amino-2-methyl-1-propanol (AMP) solutions. CO₂ solubility was experimentally measured across five blending ratios (30:0:70 to 0:30:70 (w/w)), four temperatures of (313–383 K), and CO₂ partial pressure up to 450 kPa. The data were well-correlated with both the electrolyte non-random two-liquid (e-NRTL) thermodynamic model and the artificial neural network (ANN) model. The model-physical alignment score was suggested as a novel metric to ensure consistency with fundamental absorption behaviors. While the thermodynamic model provided mechanistic insights, the ANN model offered a simpler, computationally efficient approach. Both models successfully generalized with a reduced dataset, reinforcing their applicability in absorbent screening. AMP exhibited superior CO₂ solubility, whereas DIPA offered benefits of lower pH and reduced heat of absorption. The absorption behavior of aqueous blended-amine solutions was characterized by prioritized AMPH⁺ formation, leading to an AMP-dominated system at low CO₂ loading ratios. The analysis of <em>Q</em>_{<em>regen</em>}, including sensible, reaction, and latent heats, revealed that the lowest <em>Q</em>_{<em>regen</em>} was achieved from the single AMP system. The addition of 5 wt% DIPA resulted in only an 8% increase in <em>Q</em>_{<em>regen</em>}, still achieving a 33.4% reduction compared to MEA. These findings highlight aqueous DIPA-AMP solutions as energy-efficient and chemically stable absorbents.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"38 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143798031","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":"Halogen-free ionic liquid as metalworking fluids in machining: A promising cleaner approach","authors":"Arun Kumar Bambam ,&nbsp;Abira Rashid ,&nbsp;Kishor Kumar Gajrani","doi":"10.1016/j.jclepro.2025.145454","DOIUrl":"10.1016/j.jclepro.2025.145454","url":null,"abstract":"<div><div>Metalworking fluids (MWFs) are vital in minimizing friction and wear during machining processes, improving surface quality, and reducing tool wear. With the rising sustainability concerns, demand for environmentally friendly MWFs, such as vegetable oil alternatives, has gained significant research interest worldwide. Vegetable oils have distinct physicochemical characteristics, which might affect their efficacy in lubricating applications. Apart from these merits, they possess some limitations, such as lower thermal conductivity and oxidation stability, which may impair their efficacy as MWFs. These limits may be overcome by using different MWF additives. In recent years, ionic liquids (ILs) have arisen as a new kind of MWF additive, intended to improve the lubricating properties such as thermophysical, tribological, and chemical characteristics of vegetable oils. This study compares the effectiveness of ionic liquid as additives, which includes [BMIM][BF₄]^-, [BMIM][PF₆]^-, and halogen-free [P_6,6,6,14] [i(C₈)₂PO₂]^- in pure canola oil. The research assesses the thermos-physical properties such as pH value, thermal conductivity and contact angle/wettability of the synthesized metalworking fluids. Also, it looks at critical performance variables such as cutting temperature, tool wear, and surface roughness. The findings show that a 1 % addition of [P_6,6,6,14] [i(C₈)₂PO₂]^- greatly enhances machining performance. Under [P_6,6,6,14] [i(C₈)₂PO₂]^- cutting temperatures were reduced approximately by 30 %, surface roughness was reduced by 32 <span><math><mrow><mo>−</mo></mrow></math></span> 41 %, as well as SEM image showed lower tool wear at different feed rates. Further, the sustainability assessment using the pugh matrix favours the halogen-free ionic liquids [P_6,6,6,14] [i(C₈)₂PO₂]^- as metalworking fluid compared to other MWFs.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"504 ","pages":"Article 145454"},"PeriodicalIF":9.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789798","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":"Biochar for carbon-negative hydrogen production from fossil fuel reservoirs","authors":"Keju Yan ,&nbsp;Xiaokun Yang ,&nbsp;Qingwang Yuan","doi":"10.1016/j.jclepro.2025.145463","DOIUrl":"10.1016/j.jclepro.2025.145463","url":null,"abstract":"<div><div>Biochar is an abundant and inexpensive material derived from biomass, renowned for its exceptional physicochemical properties such as high surface area and superior dielectric parameter. In this perspective, we first propose and evaluate a carbon-negative approach that utilizes biochar for in-situ hydrogen (H₂) production from natural gas reservoirs through electromagnetic (EM) heating. By critically reviewing synthesized parameters, properties, and applications of biochar, it becomes clear that biochar can boost natural gas conversion to hydrogen when used as a catalyst. Additionally, the subsurface use of biochar improves EM-heating efficiency, enhances economic viability, aids in agricultural waste management, and captures substantial amounts of carbon underground. These advantages make biochar a perfect material for optimizing in-situ hydrogen production from gas reservoirs via EM heating. In this paper, we highlight the fundamentals, prospects, and knowledge gaps of this new technology. Key factors such as catalytic performance, engineering feasibility, economic viability, and industrial synergies are thoroughly evaluated. The challenges in biochar synthesis, hydrogen production efficiency, well safety, and downhole technologies are also discussed. By leveraging multidisciplinary industry resources, renewable energies, and public support, it is anticipated that the hydrogen cost of this approach could fall below $1/kg H₂, thus enabling a transformative, affordable, and carbon-negative hydrogen production from fossil fuel reservoirs.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"505 ","pages":"Article 145463"},"PeriodicalIF":9.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143797974","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":"Product-service-system business models in the photovoltaic industry – A comprehensive analysis","authors":"Roger Nyffenegger ,&nbsp;Ässia Boukhatmi ,&nbsp;Nancy Bocken ,&nbsp;Stefan Grösser","doi":"10.1016/j.jclepro.2025.145428","DOIUrl":"10.1016/j.jclepro.2025.145428","url":null,"abstract":"<div><div>The solar industry is experiencing rapid growth, driving fundamental changes in business models and value creation strategies. While research has examined \"solar photovoltaics (PV) business models\" as catalysts for transformation, it has primarily approached this topic from a technology diffusion and energy policy perspective. As a result, the focus has been on deployment models, providing insights into how, by whom, and where PV systems are installed, rather than exploring the underlying value logic. Consequently, an understanding of how solar companies are doing business remains underdeveloped. This study addresses this gap by examining a subcategory of solar PV business models in which ownership remains with a third-party or community entity rather than the property owner. Commonly referred to as product-service-systems (PSS), these models integrate products and services to fulfil customer needs. They are relevant as they align financial incentives with system performance, encouraging the use of high-quality PV products and maximizing system lifespan. Employing an exploratory sequential research approach, this study combines qualitative data from focus groups with quantitative survey analysis. The findings highlight the advantages and disadvantages of PV PSS business models compared to traditional purchasing models with subsequent self-ownership. They further reveal that these models are driven primarily by financial considerations, with limited emphasis on circular economy principles. Building on these insights, the study develops six key decision criteria – cost structure, revenue opportunity, investment requirements, flexibility in property development, competency distribution, and life cycle management – essential for evaluating solar PV business models. These insights aim to guide procurement departments in selecting <span>PV</span> installation models and support policymakers in creating enabling regulatory frameworks. Theoretically, this study contributes by examining the underlying value logic of solar PV business models, complementing demand-side research in this field, and bridging insights between solar PV business models and PSS concepts.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"505 ","pages":"Article 145428"},"PeriodicalIF":9.7,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789751","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":"Lactic-Acid-based Deep Eutectic Solvent for Sustainable Recovery of Critical Metals from Spent Lithium-ion Batteries under Mild Conditions","authors":"Can Cao, Ziwen Yuan, Hong Liu, Xunchang Fei, Qianhong She","doi":"10.1016/j.jclepro.2025.145460","DOIUrl":"https://doi.org/10.1016/j.jclepro.2025.145460","url":null,"abstract":"Recycling critical metals from spent lithium-ion batteries (LIBs) is vital as their widespread application accelerates the depletion of mineral resources. This study presents a sustainable and energy-efficient process for recovering metals from spent LIBs using a deep eutectic solvent (DES) composed of choline chloride (ChCl) and lactic acid (LA) at low temperature, enabling effective utilization of low-grade heat. ChCl:LA DES exhibits strong reducibility and high proton concentration, contributing to efficient lithium extraction from lithium nickel manganese cobalt oxide (LiNi_0.5Mn_0.3Co_0.2O, NMC532) at only 50 ^°C without additional reducing agents. Moreover, the appropriate coordination stability between ligands in DES and metal ions from spent LIBs enables selective separation of Li and Mn into the liquid phase while reprecipitating Ni and Co as water-soluble solids. This strategic separation can simplify subsequent metal recovery processes from solvents, offering greater advantages over the non-selective dissolution in conventional hydrometallurgical processes. Accordingly, a four-step protocol was developed, achieving selective and efficient recovery of critical metals from NMC532, with extraction efficiency of over 93 wt % for Li and approximately 60 wt % for Mn, Ni and Co. Techno-economic analysis demonstrates an operating cost of $1.49 and a potential total revenue of $16.35 per kilogram of NMC532 processed for metal recovery based on the current market price. This study introduces a cost-effective and sustainable strategy for metals recovery from spent LIBs with eco-friendly DESs and low-grade heat, reducing the environmental footprint and promoting the circular economy.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"35 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789744","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":"Bismuth-selenium nanocomposite clusters inhibit tobacco bacterial wilt by disrupting bacterial morphology and promoting vegetative oxidative phosphorylation","authors":"Yanyu Hu ,&nbsp;EnDong Yang ,&nbsp;Yanping Qiu,&nbsp;Bangjia Yang,&nbsp;Shenghui Gao,&nbsp;Sha Li,&nbsp;Yuanyuan Cao,&nbsp;Dongdong Sun","doi":"10.1016/j.jclepro.2025.145455","DOIUrl":"10.1016/j.jclepro.2025.145455","url":null,"abstract":"<div><div>Tobacco bacterial wilt significantly impacts tobacco yield and quality, despite traditional control methods such as chemical fungicides and resistant cultivar breeding. However, these approaches suffer from limitations including monotonousness, residue concerns, and lengthy breeding cycles. In search of alternative solutions, nanomaterials have emerged as promising agents for enhancing agricultural productivity. Bismuth (Bi), a stable metal element with potent antibacterial properties, can effectively inhibit bacterial infections. Selenium (Se), an essential trace element for plants, exists in organic forms like selenocysteine within plants and enhances stress resistance. In this study, we designed cluster-like Bi-Se nanoparticles (Bi-Se NPs) by combining lamellar Bi NPs and spherical Se NPs via electrostatic interaction under nitrogen protection using a redox method. The optimal dosage was determined to be 128 ± 5 μg/mL based on antibacterial inhibition tests. Application of Bi-Se NPs through root irrigation increased selenium and reducing sugar contents in tobacco leaves, indicating a substantial nutrient boost in the plant body. Multi-omics analysis of the leaves revealed significant upregulation of succinic acid and flavin mononucleotide (FMN), components of the oxidative phosphorylation pathway. This upregulation enhanced pathway efficiency, accelerated oxygen and ATP production in leaves, and notably improved metabolic efficiency, thereby fostering tobacco growth and development. Furthermore, toxicity evaluations confirmed the non-toxic nature of Bi-Se NPs to mice. Collectively, these findings offer valuable insights and support for the management and yield enhancement of nanoscale agricultural systems.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"504 ","pages":"Article 145455"},"PeriodicalIF":9.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789743","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":"Abatement of greenhouse gases and ammonia from cattle slurry during storage and land spreading: A pilot scale study","authors":"S. Connolly ,&nbsp;V. O'Flaherty ,&nbsp;C.E. Thorn ,&nbsp;D.J. Krol","doi":"10.1016/j.jclepro.2025.145450","DOIUrl":"10.1016/j.jclepro.2025.145450","url":null,"abstract":"&lt;div&gt;&lt;div&gt;The storage and spreading of cattle slurry are significant contributors to greenhouse gas (GHG) and ammonia (NH&lt;sub&gt;3&lt;/sub&gt;) emissions in agriculture, driven by the decomposition of organic matter and volatilization of nitrogen compounds. This study evaluates the impact of hydrogen peroxide and potassium iodide (HK) and its combination with calcium chloride (CaCl&lt;sub&gt;2&lt;/sub&gt;) (HKC) on mitigating GHG and NH&lt;sub&gt;3&lt;/sub&gt; emissions during the manure management chain. Storage trials were conducted at multiple scales (660 L and 20 kg), alongside field trials assessing the effect of treated slurries on emissions during land spreading. Emissions of methane (CH&lt;sub&gt;4&lt;/sub&gt;), carbon dioxide (CO&lt;sub&gt;2&lt;/sub&gt;), nitrous oxide (N&lt;sub&gt;2&lt;/sub&gt;O), and NH&lt;sub&gt;3&lt;/sub&gt; were monitored over both the storage and land spreading trials.&lt;/div&gt;&lt;div&gt;Results demonstrated that HK and HKC treatments inhibited CH&lt;sub&gt;4&lt;/sub&gt; (HK - 651.41 g m&lt;sup&gt;−2&lt;/sup&gt;; HKC – 621.44 g m&lt;sup&gt;−2&lt;/sup&gt;; Control – 768.74 g m&lt;sup&gt;−2&lt;/sup&gt;) and N&lt;sub&gt;2&lt;/sub&gt;O (HK – 2.88 g m&lt;sup&gt;−2&lt;/sup&gt;; HKC – 1.01 g m&lt;sup&gt;−2&lt;/sup&gt;; Control – 7.43 g m&lt;sup&gt;−2&lt;/sup&gt;) production compared to control during storage but increased CO&lt;sub&gt;2&lt;/sub&gt; (HK – 5140.83 g m&lt;sup&gt;−2&lt;/sup&gt;; HKC – 5609.22 g m&lt;sup&gt;−2&lt;/sup&gt;; Control – 2474.27 g m&lt;sup&gt;−2&lt;/sup&gt;) emissions due to foaming and agitation effects. NH&lt;sub&gt;3&lt;/sub&gt; emissions were significantly influenced by the treatments, with HK (168.91 g m&lt;sup&gt;−2&lt;/sup&gt;) increasing emissions by 111 % and HKC (102.71 g m&lt;sup&gt;−2&lt;/sup&gt;) by 28 %, relative to the control (80.03 g m&lt;sup&gt;−2&lt;/sup&gt;). Application of a CaCl&lt;sub&gt;2&lt;/sub&gt; spray reduced NH&lt;sub&gt;3&lt;/sub&gt; emissions by 49 % in the first 48 h of treatment through surface pH modulation, though this effect was transient. Temperature significantly influenced CH&lt;sub&gt;4&lt;/sub&gt; emissions; emissions under high-temperature (HT; 19 °C) (0.085 kg CH&lt;sub&gt;4&lt;/sub&gt; kg&lt;sup&gt;−1&lt;/sup&gt; VS Day&lt;sup&gt;−1&lt;/sup&gt;) conditions were six times higher than under low-temperature (LT; 9 °C) (0.013 kg CH&lt;sub&gt;4&lt;/sub&gt; kg&lt;sup&gt;−1&lt;/sup&gt; VS Day&lt;sup&gt;−1&lt;/sup&gt;) conditions. CH&lt;sub&gt;4&lt;/sub&gt; inhibition was more effective at LT (86 % reduction, p &lt; 0.05), highlighting the temperature sensitivity of methanogenic communities. However, no significant differences in cumulative GHG or NH&lt;sub&gt;3&lt;/sub&gt; emissions were observed between treatments and controls during land spreading. When storage and spreading results were combined, treatments showed no significant cumulative reduction in GHG emissions compared to controls, highlighting the need for optimization of treatment protocols.&lt;/div&gt;&lt;div&gt;The results indicate that the oxidative treatments (HK &amp; HKC) can suppress methane (CH&lt;sub&gt;4&lt;/sub&gt;) and nitrous oxide (N&lt;sub&gt;2&lt;/sub&gt;O) emissions during storage, offering a potential strategy for reducing emissions from livestock waste. Furthermore, the application of CaCl&lt;sub&gt;2&lt;/sub&gt; as a surface treatment reduced ammonia volatilization, improving nitrogen retention in slurry, which can enhance its fertil","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"504 ","pages":"Article 145450"},"PeriodicalIF":9.7,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143789745","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":"Life cycle greenhouse gas emissions and mitigation opportunities of high-speed train in China","authors":"Zimeng Cai ,&nbsp;Changqing Xu ,&nbsp;Huimin Chang ,&nbsp;Jing Guo ,&nbsp;Chenling Fu ,&nbsp;Nan Li ,&nbsp;Dong Zhao ,&nbsp;Ming Xu","doi":"10.1016/j.jclepro.2025.145422","DOIUrl":"10.1016/j.jclepro.2025.145422","url":null,"abstract":"<div><div>As socioeconomic development accelerates the expansion of high-speed railway (HSR) networks, addressing associated greenhouse gas (GHG) emissions from their production and operation becomes crucial to achieving transportation sector emission reduction targets. This study quantifies and evaluates the life cycle GHG emissions of the CRH380BL high-speed train operating on the Beijing-Shanghai HSR line, covering manufacturing, operation, maintenance, and disposal stages. The data analysis aims to identify key stages and their potential reduction opportunities. Results indicate that the full life cycle GHG emissions of the CRH380BL are approximately 0.026 kg CO₂ eq per passenger-kilometer, totaling 6.5 × 10⁵ tons CO₂ eq over 20 years. Of these emissions, the operation stage contributes the highest proportion (98.0 %), followed by manufacturing (1.2 %), maintenance (0.8 %), and disposal (0.0 %). This study finds that at the operation stage, the electricity mix and passenger load factor significantly impact GHG emissions. In the case of using entirely clean electricity, over 90 % of emissions can be reduced throughout the train's lifecycle, while maintaining a high passenger load factor helps lower per capita carbon emissions. At the manufacturing and disposal stages, the use of recycled materials and material recovery can achieve up to nearly 50 % and 30 % emission reductions, respectively. This study provides valuable insights into the sources and magnitudes of GHG emissions in HSR systems, enabling the identification of effective strategies for reducing emissions and contributing to the overall emissions reduction goals in the transportation sector.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"504 ","pages":"Article 145422"},"PeriodicalIF":9.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782704","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":"Targeting sustainable desalination solutions: A techno-economic and life cycle approach to guiding zero liquid discharge desalination","authors":"Brandi M. Grauberger ,&nbsp;Garrett M. Cole ,&nbsp;Tiezheng Tong ,&nbsp;Shihong Lin ,&nbsp;Jason C. Quinn ,&nbsp;Todd Bandhauer","doi":"10.1016/j.jclepro.2025.145445","DOIUrl":"10.1016/j.jclepro.2025.145445","url":null,"abstract":"<div><div>Increasing water scarcity and heightened environmental consciousness has elevated the importance of sustainable water management strategies. In response to this pressing global challenge, the adoption of innovative desalination technologies has emerged to provide water treatment and supply chain solutions. Among these, Zero Liquid Discharge (ZLD) desalination has garnered considerable attention for its potential to mitigate the impact of water scarcity while minimizing environmental consequences associated with ill-managed brine wastes. In this work, we evaluate the economic and environmental competitiveness of an electrodialytic crystallization (EDC) system designed in recent works. We find that when compared to existing ZLD technologies, EDC can compete economically with the potential to reduce costs of ZLD by over 60 %. Furthermore, EDC has 42 % lower global warming potential than existing technologies. Scenario and sensitivity assessments completed in this work identify the operating parameters of EDC that greatly affect economic and environmental impacts. Most notably, improvements to the cost and performance of ion exchange membranes will provide the highest benefit to EDC competitiveness. With appropriate concentration of future research on these high-impact areas, the economic and environmental viability of EDC should continue to increase in the coming years and EDC will compete with existing ZLD technologies to provide a low-cost, efficient, and low-impact replacement.</div></div>","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"504 ","pages":"Article 145445"},"PeriodicalIF":9.7,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143782705","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}