ACS Sustainable Resource Management最新文献_第7页

Remediation of Waste Sealing Mud from Moutai: Enhancing Organics and Nitrogen Removal Simultaneously via the Cycle of Indigenous Iron 茅台封口废泥的修复：利用原生铁循环同时加强有机物和氮的去除

ACS Sustainable Resource Management Pub Date : 2025-07-02 DOI: 10.1021/acssusresmgt.5c00175

Riyu Song, Jianguo Zhou, Xiangshan Zeng, Xinyi Wu, Changhui Hu, Jinlai Yuan, Fangzheng Wang, Fan Yang, Bi Chen, Yan Wang and Yafei Yang*,

{"title":"Remediation of Waste Sealing Mud from Moutai: Enhancing Organics and Nitrogen Removal Simultaneously via the Cycle of Indigenous Iron","authors":"Riyu Song, Jianguo Zhou, Xiangshan Zeng, Xinyi Wu, Changhui Hu, Jinlai Yuan, Fangzheng Wang, Fan Yang, Bi Chen, Yan Wang and Yafei Yang*, ","doi":"10.1021/acssusresmgt.5c00175","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00175","url":null,"abstract":"After a period of sealing the cellar for Maotai-flavor liquor brewing, the sealing mud can no longer be used due to the accumulation of organics and nitrogen. In this study, a method for restoring waste mud driven by the cycle of indigenous iron was proposed, in which Fe(II) was oxidized to Fe(OH)3 after short-term aeration, and then dissimilatory Fe(OH)3 reduction coupled with organics and ammonium oxidation (Feammox) occurred under anoxic conditions. The results showed that the aeration group achieved 60.0% organic matter removal and 53.6% nitrogen removal, which were significantly higher than those of the control group (p < 0.05). Microbial analysis showed that intermittent aeration enriched iron-reducing bacteria, removing ammonium via Feammox as well as microorganisms degrading organics, while ammonium-oxidizing bacteria and anaerobic ammonium oxidation (Anammox) microorganisms were undetected, ruling out the contribution of nitrification and Anammox to nitrogen removal. Metagenomic analysis further demonstrated that the genes related to the iron cycle, organic degradation, and nitrogen removal were significantly increased in the aeration group. After the treatment, the mud had no odor, and the viscosity was recovered, achieving a remediation effect. This method provides an economical and efficient solution for waste containing organics and nitrogen.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 7","pages":"1328–1336"},"PeriodicalIF":0.0,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144806637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Greenhouse Gas Accounting Procedures in Low Carbon Fuel Policies Overlook the Spatial Variability of Miscanthus-Derived Sustainable Aviation Fuel 低碳燃料政策中的温室气体核算程序忽视了芒草衍生可持续航空燃料的空间变动性

ACS Sustainable Resource Management Pub Date : 2025-06-30 DOI: 10.1021/acssusresmgt.4c00486

Dalton W. Stewart, Wenjun Guo, Yalin Li, Xinxin Fan, Jonathan W. Coppess, Madhu Khanna and Jeremy S. Guest*,

{"title":"Greenhouse Gas Accounting Procedures in Low Carbon Fuel Policies Overlook the Spatial Variability of Miscanthus-Derived Sustainable Aviation Fuel","authors":"Dalton W. Stewart, Wenjun Guo, Yalin Li, Xinxin Fan, Jonathan W. Coppess, Madhu Khanna and Jeremy S. Guest*, ","doi":"10.1021/acssusresmgt.4c00486","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00486","url":null,"abstract":"Low carbon fuel policies such as the U.S. Renewable Fuel Standard (RFS), Canada Clean Fuel Regulations (CFR), and California Low Carbon Fuel Standard (LCFS) as well as the 45Z tax credit are intended to reduce greenhouse gas (GHG) emissions from transportation. Cellulosic feedstocks, optimized biorefineries, and favorable farming locations can significantly reduce biofuel carbon intensity (CI). Despite advances in field-to-fuel GHG monitoring and flexibility in resource allocation within biorefineries (e.g., governing net electricity production), rigid CI accounting procedures in current policies may limit CI responsiveness across candidate sites and processing facilities. This work examines a hypothetical biomass-to-sustainable aviation fuel (SAF) pathway using miscanthus and alcohol-to-jet (i) to demonstrate how GHG accounting requirements drive estimates of biofuel CIs and (ii) to explore potential CI and financial implications of scenario-specific life cycle assessment (LCA). Results demonstrate that GHG accounting using the CFR/LCFS can reasonably account for distinct levels of net electricity production by a biorefinery, but only the CFR yields similar CI sensitivity to spatially explicit factors (feedstock CI, grid electricity CI) as scenario-specific LCA: most GHG accounting frameworks do not capture CI variation across candidate sites in the United States. Ultimately, this work demonstrates the importance of LCA methodological specifications in low carbon fuel policies and tax credits.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 7","pages":"1185–1194"},"PeriodicalIF":0.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144808899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Water-Based Production of Carbon Fibers from Lignin and Alginate 木质素和海藻酸盐水基生产碳纤维的研究

ACS Sustainable Resource Management Pub Date : 2025-06-28 DOI: 10.1021/acssusresmgt.5c00053

Olympe Longeras, Sébastien Gounel, Wilfrid Neri, Emmanuel Texier, Laurence Gbaguidi, Ahmed Bentaleb, Frédéric Peruch, Stéphane Grelier, Lou Delugeau, Nicolas Mano* and Philippe Poulin*,

{"title":"Water-Based Production of Carbon Fibers from Lignin and Alginate","authors":"Olympe Longeras, Sébastien Gounel, Wilfrid Neri, Emmanuel Texier, Laurence Gbaguidi, Ahmed Bentaleb, Frédéric Peruch, Stéphane Grelier, Lou Delugeau, Nicolas Mano* and Philippe Poulin*, ","doi":"10.1021/acssusresmgt.5c00053","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00053","url":null,"abstract":"Lignin, a promising precursor of low-cost carbon fibers, faces a significant challenge for environmentally friendly processing: Kraft lignin’s insolubility in water. To address this issue, the enzyme Bilirubin oxidase from Bacillus pumilus has been employed to modify lignin’s solubility. This treatment results in aqueous solubilization and condensation, evidenced by a nearly 5-fold increase in molecular weight. Crucially, the carbon content after pyrolysis remains intact, which is essential for carbon fiber production. Consequently, this modified lignin is well-suited for carbon fiber manufacturing. In this study, a solution of the treated lignin and alginate, acting as a plasticizer, was wet-spun into calcium chloride and ammonium persulfate baths, producing fibers composed entirely of biopolymers. Following carbonization, without the need for a stabilization step, the resulting fibers exhibited mechanical properties that compared with the properties of fibers produced in organic solvents or with oil-based plasticizers. The optimal mechanical properties were achieved with 67% lignin content, yielding a Young’s modulus of 39 ± 6 GPa and a tensile strength of 457 ± 54 MPa. These findings demonstrate the successful development of 100% bio-sourced fibers under environmentally friendly conditions.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 7","pages":"1212–1219"},"PeriodicalIF":0.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144808833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep-Eutectic-Solvent-Assisted Mechano-Photocatalytic Transformation of Chitosan Films for Green Elimination of Water Pollutants 深度共晶-溶剂辅助机械光催化转化壳聚糖膜的绿色去除水污染物

ACS Sustainable Resource Management Pub Date : 2025-06-27 DOI: 10.1021/acssusresmgt.5c00149

Aman Chauhan, Archana Negi, Kirti, Nirmal Singh, Ankur Pandey and Ganga Ram Chaudhary*,

{"title":"Deep-Eutectic-Solvent-Assisted Mechano-Photocatalytic Transformation of Chitosan Films for Green Elimination of Water Pollutants","authors":"Aman Chauhan, Archana Negi,  Kirti, Nirmal Singh, Ankur Pandey and Ganga Ram Chaudhary*, ","doi":"10.1021/acssusresmgt.5c00149","DOIUrl":"https://doi.org/10.1021/acssusresmgt.5c00149","url":null,"abstract":"Chitosan films are emerging as a magnificent alternative to powdered photocatalysts but suffer from issues such as poor mechanical stability and loss of photocatalytic activity. These issues hinder the aspired green rationale for choosing these films over powdered materials. Herein, we have demonstrated how a simple and green Deep Eutectic Solvent (DES) based modification can resolve these problems. The DES, composed of ZnCl2 and urea, induced significant structural and morphological changes on the CN surface, which led to a massive rise in the mechanical strength of the films. Particularly in the CN-6.6 formulation, DES adhered to a unique dendrite arrangement, which enhanced the adsorption capacity of the surface towards pollutants. Besides, DES also affected the electronic properties of the CN surface, which enabled the latter to showcase significant photocatalytic activity. The combined impact of enhanced adsorption and excellent charge transfer with the help of electronic coordination between CN-6.6 film surface and g-C3N4 ensured that CN-g-C3N4-6.6 film not just retains but also exceeds the efficiency of g-C3N4 for all the target pollutants, i.e., methylene blue, tetracycline hydrochloride, and rhodamine B. Mechanistically, the enhanced photocatalytic activity after DES inclusion was a consequence of the direct coordination between DES and photocatalyst due to in situ formation of semiconducting entities, which enhanced the charge separation. Hence, for the first time, we are reporting the application of the solvent as a direct and functional constituent of the photocatalytic pathway. These remarkable structural, morphological, and electronic effects embarked by DES have resolved two of the most notorious problems persisting with CN films in an entirely green framework.","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 7","pages":"1300–1309"},"PeriodicalIF":0.0,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144808808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0