Journal of Cleaner Production最新文献

{"title":"Multi-scale energy-carbon assessment for oyster cold chain: an empirical study","authors":"Wentao Huang, Jingui Zou, Maosong Yin, Feng Liu, Xianping Wang, Xiaoshuan Zhang","doi":"10.1016/j.jclepro.2024.144538","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144538","url":null,"abstract":"The existing oyster cold chain suffers from high energy consumption, numerous links, and low transparency. Few studies provide a comprehensive and integrated assessment of the energy consumption and carbon emissions of the oyster cold chain. Therefore, this paper designs and builds an oyster cold chain assessment system aimed at providing an energy-carbon, economic, and sustainability assessment framework for the oyster cold chain industry. Field experiments and numerical calculations for three types of oyster cold chains — enterprise (C1), boutique (C2), and experimental (C3)—were conducted to obtain the environmental footprints of the different cold chains from the production to retail stages. The results showed that the first refrigerated transportation stage of the oyster cold chain has the most significant energy consumption and carbon emissions and is the priority for optimization. The C3 cold chain produced the least combined energy consumption (188.106 kgce/1000kg) and carbon emissions (305.5461 kgCO₂/1000kg), and it had the highest sustainability score. The C2 cold chain had the highest combined cost (79.43/kg) but the lowest spoilage rate (1%), making it the best choice for the high-end oyster market. Sensitivity analysis showed that the C2 cold chain was more dependent on diesel fuel and the C3 cold chain was more dependent on electricity. Retrofitting refrigerated display cabinets and using advanced phase change materials are key to energy savings and emission reductions. This study is a positive exploration of greening, digitization, and efficiency of the oyster cold chain, promoting cleaner production in the oyster cold chain industry.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"31 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857920","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":"Hydroxyl groups and vacancy defects modified Mo2C MXene as peroxymonosulfate activator for antibiotics degradation","authors":"Xuwen Chen, Zhou Zhou, Fredrick Owino Gudda, Lei Tang, Hefei Wang, Bożena Czech, Patryk Oleszczuk, Yanzheng Gao","doi":"10.1016/j.jclepro.2024.144540","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144540","url":null,"abstract":"Antibiotic pollution poses significant threats to ecological health and food safety, highlighting the need for effective pollution control strategies. A novel Mo₂C MXene-OH&V_Mo (hydroxyl groups and Mo vacancy defects modified Mo₂C MXene) was developed through etching and hydrothermal methods, which facilitated the construction of a degradation system utilizing peroxymonosulfate for antibiotics degradation. The MXene-OH&V_Mo demonstrated enhanced adsorption of HSO₅⁻, achieving an adsorption energy of -1.73 eV, which is superior to that of unmodified Mo₂C MXene (-0.42 eV). The activation of HSO₅^– by Mo vacancies involved the transfer of 0.63 e, leading to the generation of reactive oxygen species (^•OH, ¹O₂, SO₄^•− and O₂^•−) responsible for degrading three antibiotics with degradation percentages exceeding 97.00%. The presence of hydroxyl groups further improved the activation efficiency of HSO₅⁻ by optimizing the electron arrangement of Mo₂C MXene-OH&V_Mo. The extent of antibiotic degradation was influenced by atomic charge distribution. Additionally, Mo₂C MXene-OH&V_Mo exhibited remarkable repeatability, maintaining degradation percentages above 88.00% after four cycles. The condensed Fukui function was utilized to identify highly active sites of antibiotics, and combined with degradation products analyzed by HPLC-MS/MS, commonalities in detailed degradation pathways were revealed. Furthermore, the products were found to pose negligible toxicity risks to ecological receptors and humans. These findings hold significant implications for the future use of MXene-based catalyst advanced oxidation technology in the treatment of organic pollutants and offer sustainable solutions for environmental remediation. Insights into the development of new catalysts through surface modification engineering were also presented in this study.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"20 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857921","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 Moderating Role of Tourism in the Impact of Financial Crime on Deforestation","authors":"Cozma Adeline-Cristina, Achim Monica Violeta, Mare Codruta, Coros Monica Maria","doi":"10.1016/j.jclepro.2024.144475","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144475","url":null,"abstract":"Illegal logging significantly contributes to the climate crisis, as trees are vital for converting carbon dioxide into oxygen. This study examines how tourism can reduce the impact of financial crime on deforestation by providing alternative ways to economically benefit from forests. Using data from 154 countries between 2012 and 2020, the research employs spatial clustering and dynamic panel models to confirm that tourism can monetize trees as green attractions, rather than through logging. The findings highlight tourism's potential as a sustainable industry with long-term growth prospects, even in countries with high corruption but strong environmental awareness. This insight is crucial for policymakers aiming to balance economic development with environmental protection.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"83 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849072","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":"Surface treatment through polymeric ferric sulfate for progressive flotation separation of waste plastics","authors":"Han Sun, Zhiyi Wang, Jiming Su, Yingshuang Zhang, Chongqing Wang, Hui Wang, Hongru Jiang","doi":"10.1016/j.jclepro.2024.144515","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144515","url":null,"abstract":"Plastics offer considerable convenience in daily life and human health. However, a substantial amount of waste plastics is released into the environment without proper treatment, posing significant environmental challenges. Recycling and separating waste plastics is difficult due to their similar chemical and physical properties. This study introduces a novel method combining polymeric ferric sulfate (PFS) modification with flotation for efficient plastic separation. In order to achieve the optimal flotation conditions, single parameter experiments were used to confirm the key variables that have a close correlation with the flotation performance, namely PFS dose, temperature, time and pH value. PFS has different hydrophilic effects on polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS) and polyvinyl chloride (PVC) surfaces, whereas polyethylene terephthalate (PET) remains unaffected. For purpose of achieving the individual separation of the plastics, a stepwise flotation method was used. After the primary separation, PET and PC were discharged, while all plastics were individually separated and retained at high purity through the secondary separation process, resulting in 100% purity for both PET and PVC. PC and ABS can achieve 97.4% and 94.5% purity in triplicate validation tests, respectively. Surface modification mechanisms were investigated using X-ray Photoelectron Spectroscopy (XPS), Fourier Transform Infrared Spectroscopy (FT-IR), and Scanning Electron Microscopy (SEM). Based on varying functional groups and surface potentials, PFS can adhere to different plastic surfaces for extended durations, creating the hydrophilicity difference. Nonhomogeneous adsorption of PFS on plastics surfaces was described by characterization and adsorption kinetics. The hydrophilization order and PFS adsorption capacity were consistent: PVC > ABS > PC > PET. The interaction between PFS and plastics was explained by density functional theory (DFT) simulations, the long-chain molecules and numerous hydroxyl groups primarily interact with the plastic surface through electrostatic forces and hydrogen bonds. Through optimization of the PFS treatment process, the consumption of the modification reagent was successfully reduced to 56.51 g/ton of waste plastic with the reuse of PFS. Our process optimization assessment highlights that PFS treatment is a highly effective method for recycling waste plastics.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"114 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840924","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":"Iron/nitrogen/sulfur co-doped cyanobacteria derived carbon composites for enhanced hydroxychloroquine degradation via primary nonradical pathway in peroxymonosulfate-based fenton-like system","authors":"Tao Wang, Yuxuan Yang, Zheren Tang, Pin Zhao, Kunlun Yang, Xinhua Xu","doi":"10.1016/j.jclepro.2024.144530","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144530","url":null,"abstract":"A green and efficient Fe/N/S co-doped carbon catalysts (ITC-X-800) was successfully prepared from Fe/N-rich salvaged cyanobacteria and thiourea for catalyzing peroxymonosulfate (PMS) to degradate hydroxychloroquine (HCQ). Characterization tests confirmed that defect degree, electron transfer capability, and the content of main functional groups like π-π*, Fe-N_X, graphitic N and thiophene S etc. in ITC-X-800 was firstly increased and then decreased with the increasing doping S, indicating the critical role of S for regulating functional sites containing Fe/N on the carbon nanosheets. Optimized ITC-2-800 with appropriate S showed suitable HCQ adsorption ability, lowest resistance and more PMS activation sites. Almost 100% of HCQ could be removed via ITC-2-800/PMS system in 60 min within 0.5 mM PMS and 0.1 g/L ITC-2-800, whose HCQ degradation kinetic constant was 2.5 times that of Fe/N doped carbon catalyst. Based on the basic strong electron transfer ability and HCQ adsorption affinity of π-π*, the high PMS adsorption and catalyzing capacity of Fe-N_X, and the extra enhanced carbon skeleton activation of thiophene S, the synergistic effect of these groups in ITC-2-800 was proved to play a more important role in enhanced PMS activation and HCQ degradation. Ascribed to the synergistic effect of Fe/N/S, non-radical pathway based on ¹O₂ and high-valent iron-oxo species played a dominant role in HCQ degradation. Furthermore, ITC-2-800 showed high universality, stability, reusability and potential practicability during comprehensive test. This study provided deeper insights for the resourceful treatment of algae mud and the synergistic mechanism of heteroatoms in carbon-based catalysts for PMS activation.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"10 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840890","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":"Constructing electron-rich metal sites in M0.5Co0.5O through N substitution for efficient peroxymonosulfate activation to degrade organic pollutants","authors":"Hui Cui, Chuanhui Wang, Yaqi Huang, Mengjie Qin, Ding Zhao, Xianfeng Yang, Peng Guo, Yuanyuan Sun, Dongjiang Yang","doi":"10.1016/j.jclepro.2024.144497","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144497","url":null,"abstract":"Transition metal oxides are promising heterogeneous catalysts for peroxymonosulfate (PMS) activation. However, the catalytic degradation performance was unsatisfactory. Herein, nitrogen doping was applied to construct electron-rich metal sites in bimetallic oxides (Mn_0.5Co_0.5O, Fe_0.5Co_0.5O, Cu_0.5Co_0.5O) to boost their PMS activation performance for sulfamethoxazole (SMX) degradation. The N-doped bimetallic oxides (Mn_0.5Co_0.5O-N, Fe_0.5Co_0.5O-N, Cu_0.5Co_0.5O-N), obtaining through a facile ammonia-assisted medium-temperature heat treatment method, displayed enhanced PMS activation performance for SMX degradation compared with the pristine bimetallic oxides. Especially, Mn_0.5Co_0.5O-N is the optimal option with 100% SMX degradation efficiency within 2 min, wide pH application range (3.5-11.5), and excellent cycling performance. The density functional theory (DFT) calculations confirmed that Mn_0.5Co_0.5O-N with more negative adsorption energy (E_ads) and higher electron transfer number was more beneficial for PMS adsorption and activation. Quenching experiments, electron paramagnetic resonance (EPR), and solvent exchange (H₂O to D₂O) indicated that ¹O₂ contributed predominantly to SMX degradation. This research offers an economical strategy for boosting the PMS activation activity to degrade pollutants of transition metal oxides through constructing electron-rich metal sites in bimetallic oxides by N substitution.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"146 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840922","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":"A continuous self-circulating granular sludge treatment process for real municipal wastewater: Regulation strategy, exploring granularity and stabilization, and processing performance","authors":"Wei-Kang Qi, Tian-Yuan Du, Shu-Jun Zhang, Liang Zhang, Yong-Zhen Peng, Cong Wang","doi":"10.1016/j.jclepro.2024.144528","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144528","url":null,"abstract":"Existing continuous flow reactors (CFR) utilized for the investigation of aerobic granular sludge (AGS) exhibit structural complexity and suboptimal energy efficiency. An innovative aeration self-circulating CFR (Zier rector) was employed in this study for the cultivation of AGS. The experiment was performed 202 days using real municipal wastewater under varying operating conditions. A hydraulic retention time of 10 h and adequate influent organic matter resulted in a chemical oxygen demand removal efficiency of 85%, an ammonia nitrogen removal efficiency exceeding 92%, and a total nitrogen removal efficiency ranging from 60% to 70%. The particle size increased when the up-flow velocity was maintained between 9.8 and 18 m/h, the self-circulating multiple times ratio was sustained within 12 to 30 times, and the food-to-microorganism was set within 0.2 to 0.6 g COD/(g MLSS·d). Ultimately, the mass proportion of sludge with a particle size larger than 0.2 mm was 75%, with 42% exceeding 0.5 mm. The stability of AGS and the treatment efficacy of the Zier process were influenced by the temperature and volume ratio of the nonaerated to the aerated zones. The Zier process demonstrates enhanced advantages and application potential, rendering it a more appealing option for a broader spectrum of water treatment facilities.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"77 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840886","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":"Zero-waste fabrication methodology for structurally optimized mass timber beams","authors":"Paul Mayencourt, Tim Cousin, Simon Ganeles, Caitlin Mueller","doi":"10.1016/j.jclepro.2024.144518","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144518","url":null,"abstract":"Mass timber construction has the potential to reduce the embodied carbon of new constructions and store carbon in the building stock. However, due to current design and manufacturing practices of engineered wood products, mass timber building can be more expensive than other structural material systems, making up to 30% of the total building cost.Optimized shaped beams can reduce material need by up to 70% in structures but are not easily manufactured with subtractive manufacturing or 3-dimensional milling methods, Manufacturing waste of these methods weakens the sustainability and material saving potential and challenges the adoption of these materially efficient shapes.We developed a zero-waste fabrication technique for shaped timber beams, by mixing subtractive and additive manufacturing techniques. The shape optimization is constrained by the requirements of the fabrication technique, to ensure that every result can be made.The paper covers the zero-waste fabrication methodology and its implementation in a constrained optimization for structurally optimized shaped timber beams. The beams are made from individual layers, cut from sheet material in a zero-waste pattern resulting from structural logic. The layers are then reassembled into a solid layered beam close to the optimal shape for minimal material use. The methodology is demonstrated in a small-scale load test. Material savings of around 20-30% on average and up to 40.1% can be achieved on simply supported beams with constant height.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"4 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142840923","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":"Impression Management in Sustainability Disclosures and Information Asymmetry: The Case of Brazilian Public Companies","authors":"A.L.E.X.A.N.D.R.E.F.E.R.N.A.N.D.E.S. MONTEIRO, R.O.D.R.I.G.O.D.E.S.O.U.Z.A. GONÇALVES","doi":"10.1016/j.jclepro.2024.144483","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144483","url":null,"abstract":"This study investigated whether impression management (IM), which is constantly used in sustainability disclosures (D-CSR in Brazil), is associated with higher levels of information asymmetry (IA) by analyzing 55 Brazilian listed companies’ D-CSRs from 2016 to 2020 (266 reports in total). The codification model and measurements were adapted to capture the IM level using four techniques: attribution, comparison, emphasis, and thematic emphasis. The IA proxy was measured by the bid-ask spread and tested using a nonlinear regression with unbalanced panel data based on the generalized linear method. The results show that IA levels increase with higher IM use in D-CSR, supporting the hypothesis that IM brings suspicion to investors because of perceived informational bias. The study fills a gap in the literature in that it provides quantitative evidence that investors are becoming more attuned to ESG (Environmental, Social, and Governance) issues and are thus able to recognize language in disclosure documents that attempts to disguise poor sustainability practices. Clearly, the International Sustainability Standards Board needs to consider IM in the methodology for enhancing international sustainability disclosure standards. This procedure is relevant, considering that IM use in sustainability disclosures prejudices external users’ evaluations and decision-making due to opacity and bias.","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"39 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849075","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 modeling the generation of the transformation products of carbamazepine in polishing and oxidation water treatment processes","authors":"Jeanne Trognon, Jean-Marc Choubert, Claire Albasi","doi":"10.1016/j.jclepro.2024.144517","DOIUrl":"https://doi.org/10.1016/j.jclepro.2024.144517","url":null,"abstract":"Carbamazepine (CBZ) is an anticonvulsant, one of the most commonly detected in surface water, even in areas with low anthropogenic pressure. The CBZ contained in wastewater is poorly removed by conventional secondary processes and requires a polishing stage; oxidation processes in this case are a tried-and-tested options. However, a multitude of reaction pathways occurs and may lead to the generation of many transformation products (TPs) with different physicochemical properties. This work presents an ordinary differential equation (ODE)-based computer model predicting the generation of TPs generated from CBZ oxidation. The aim is to improve our knowledge of the nature, fate and dynamics of such TPs. After calibration using individual datasets taken from the literature, we proposed a global model able to predict the fate of 11 TPs. A sensitivity analysis revealed that 4 primary TPs are instrumental in the model quality: EP-CBZ, 9CHO-CBZ, 2OH-CBZ and 10OH-CBZ. TPs far from CBZ in the reaction pathway are less accurately predicted. Furthermore, the work showed that determining stoichiometric parameters (k_stoi) is essential to predict TPs as they exhibit greater sensitivity to them than kinetic constants (k).","PeriodicalId":349,"journal":{"name":"Journal of Cleaner Production","volume":"23 1","pages":""},"PeriodicalIF":11.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849074","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}