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A comprehensive study of variability in total column of ammonia using quantile regression approach over non-attainment cities of the North-Western Himalayas 利用分位数回归方法对西北喜马拉雅地区非达标城市氨总柱变异性的综合研究
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100146
Akshay , Ashish Dogra , Dilbag Singh , Ankit Tandon
{"title":"A comprehensive study of variability in total column of ammonia using quantile regression approach over non-attainment cities of the North-Western Himalayas","authors":"Akshay ,&nbsp;Ashish Dogra ,&nbsp;Dilbag Singh ,&nbsp;Ankit Tandon","doi":"10.1016/j.nxsust.2025.100146","DOIUrl":"10.1016/j.nxsust.2025.100146","url":null,"abstract":"<div><div>The present study has investigated the relationship between total column ammonia (TCNH₃) and different environmental factors in the non-attainment regions viz., Damtal, Baddi and Paonta Sahib in the North-Western Himalayas. The 12 years satellite data was obtained from the Infrared Atmospheric Sounding Interferometer (IASI) and the quantile regression (QR) tool was used to study the variability in long-term trends of TCNH₃ across its distribution. The maximum concentration of TCNH₃ was observed during July in Paonta Sahib followed by Baddi and Damtal. Simultaneously, august month shows notable decrease in TCNH₃ levels, while winter season again shows opposite trend in Paonta Sahib. Further, a significant positive correlation is observed between TCNH₃ and key environmental variables such as PM<sub>2.5</sub>, temperature, total column water vapour (TCWV), and rainfall. Similarly, an increasing trend was also highlighted in higher quantile (τ&gt;0.8) across all cities, while, negative trend was observed (τ&lt;0.8) in Damtal and Paonta Sahib. Additionally, PM<sub>2.5</sub> levels displayed substantial positive trends in significantly higher quantiles (τ&gt;0.95), while rainfall showed significant variability with notable negative trends in higher quantiles (τ&gt;0.9). Overall, the present study enhanced the understanding of TCNH₃ variability across the three non-attainment cities of Himachal Pradesh, emphasizing the need for continued monitoring and targeted environmental management strategies to mitigate the impact of industrial emissions on air quality and public health.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100146"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144308021","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
Multiple vapor compressors for enhanced performance and cost savings in vacuum membrane distillation 多蒸汽压缩机,提高性能和节省成本的真空膜蒸馏
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100160
Suhaib M. Alawad , Osman Shamet , Dahiru Lawal , Atia E. Khalifa
{"title":"Multiple vapor compressors for enhanced performance and cost savings in vacuum membrane distillation","authors":"Suhaib M. Alawad ,&nbsp;Osman Shamet ,&nbsp;Dahiru Lawal ,&nbsp;Atia E. Khalifa","doi":"10.1016/j.nxsust.2025.100160","DOIUrl":"10.1016/j.nxsust.2025.100160","url":null,"abstract":"<div><div>This study investigates the performance of a multistage vacuum membrane distillation (MSVMD) system integrated with multiple mechanical vapor compressors (MVCs) to enhance energy recovery and improve cost-effectiveness. A comprehensive analysis is conducted to evaluate key performance indicators, including system productivity, specific energy consumption (SEC), and water production cost, across six different VMD configurations. Additionally, the effects of operational parameters such as feed temperature, vacuum pressure, and compressor efficiency are examined through a detailed parametric study. Results indicate that integrating 10 MVCs with the VMD system achieves a maximum freshwater production of 1045 L/h, representing a 297 % increase compared to a system with a single MVC at a feed temperature of 90°C. The lowest SEC recorded is 78 kWh/m³ , attained using 6 MVCs with a compressor efficiency of 90 %, leading to a minimum water production cost of 6.3 $/m³ . However, further analysis reveals that while increasing the number of MVCs enhances productivity and energy efficiency, it also raises capital investment due to the high initial cost of compressors. The operating cost primarily depends on electricity consumption, while maintenance costs escalate with the number of compressors due to additional servicing requirements. A cost-benefit analysis suggests that beyond 10 MVCs, the marginal gains in productivity are offset by rising costs, indicating an optimal balance between energy savings and economic feasibility. This study provides valuable insights into the economic and operational trade-offs of integrating MVCs with VMD, offering a viable pathway for large-scale desalination and water treatment applications.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100160"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722456","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
Comprehensive first-principles study of structural, electronic, optical, and elastic properties of FrBCl3 (B = Mg & Ba) cubic perovskites FrBCl3 (B = Mg & Ba)立方钙钛矿结构、电子、光学和弹性性质的综合第一性原理研究
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100169
Sahadat Jaman, K.M. Kamruzzaman, Md. Rokonuzzaman Rokon, Faria Farjana, Mohammad Abdur Rashid, Md. Borhanul Asfia
{"title":"Comprehensive first-principles study of structural, electronic, optical, and elastic properties of FrBCl3 (B = Mg & Ba) cubic perovskites","authors":"Sahadat Jaman,&nbsp;K.M. Kamruzzaman,&nbsp;Md. Rokonuzzaman Rokon,&nbsp;Faria Farjana,&nbsp;Mohammad Abdur Rashid,&nbsp;Md. Borhanul Asfia","doi":"10.1016/j.nxsust.2025.100169","DOIUrl":"10.1016/j.nxsust.2025.100169","url":null,"abstract":"<div><div>Lead free metal halide Perovskites have recently received attention for their use in light-emitting diodes, solar cells, lasers and other optoelectronic devices. To investigate the structural, electronic, optical and mechanical characteristics of the non-toxic metal halides FrBCl<sub>3</sub> (B = Mg, Ba), the first principles calculation has been performed implementing full-potential linearized augmented plane wave approach (FP-LAPW) in the density functional theory (DFT) in WIEN2k code. As Mg atom is replaced by Ba atom, the lattice parameter has also increased which also affected in other optoelectronic properties. The simulated band structures and density of states reveal that both of these compounds have indirect wide bandgap, which are 3.77 eV for FrMgCl<sub>3</sub> and 4.52 eV for FrBaCl<sub>3</sub>. The optical spectra demonstrate that absorbance enhanced about <span><math><mrow><mn>2</mn><mo>.</mo><mn>2</mn><mo>×</mo><msup><mrow><mn>10</mn></mrow><mn>6</mn></msup><mspace></mspace><msup><mrow><mi>cm</mi></mrow><mrow><mo>-</mo><mn>1</mn></mrow></msup></mrow></math></span> in the ultraviolet region (16–17 eV). The highest peak values of conductivity, dielectric constant and low reflectivity have also been observed in the ultraviolet region. The investigation of mechanical properties reveal that the composites are mechanically stable. According to a comprehensive study of the physical characteristics, FrBaCl<sub>3</sub> may be a possibility for optoelectronic uses. As FrBaCl<sub>3</sub> contains the radioactive element, this may be used in medical sector for diagnosis and imaging technology.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100169"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144903190","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
Java and Bali land surface temperature decrease variation 爪哇和巴厘岛地表温度下降变化
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2024.100096
Munawar Munawar , Tofan Agung Eka Prasetya , Marzuki Marzuki , Muhamad Rifki Taufik , Teuku Fadhla
{"title":"Java and Bali land surface temperature decrease variation","authors":"Munawar Munawar ,&nbsp;Tofan Agung Eka Prasetya ,&nbsp;Marzuki Marzuki ,&nbsp;Muhamad Rifki Taufik ,&nbsp;Teuku Fadhla","doi":"10.1016/j.nxsust.2024.100096","DOIUrl":"10.1016/j.nxsust.2024.100096","url":null,"abstract":"<div><div>The world is facing global warming due to natural processes and human activities. From 1880–1980, the global average temperature increased by 1°C per century. Land Surface Temperature (LST) is a crucial climatic variable for analyzing the interaction between the Earth's surface and the atmosphere. Java Island has the highest population and is more urbanized than other islands in Indonesia. From January 2001 to January 2020, LST daytime data were downloaded from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS) Land Products Global Subsetting and Visualization Tool. This study aims to investigate the LST seasonal patterns and trends of Bali and Java islands. The appropriate distance between sub-regions was also observed, with 105 pixels and 52.5 pixels producing two and six super-regions, respectively. It was found that seasonal patterns could be represented with pixel distances of 105 and 52.5, using eight knots of cubic splines. From 2001–2020, the lowest LST was recorded in January, while the highest was in September. The highest average daily LST, 38.32 °C, was found in Cikande, Serang, and Banten, likely due to industrial activity. This study also analyzed LST fluctuations using seven knots of the cubic spline. It was found that the average daily LST decreased by −0.113 °C per decade in Java and Bali. The western super-regions of Java showed significant LST increases, while the eastern super-regions showed slight decreases. For the 52.5-pixel distance, there was no substantial variation in average LST, though Jakarta and Banten showed significant increases. The 105-pixel distance is useful for examining LST variations on small islands like Java, while the 52.5-pixel distance can detect deeper variations in smaller super-regions. This study also noted that monsoon season and precipitation impact LST decline, and suggested that further research is needed to validate these findings. Additional variables like NDVI, land elevation, and land cover should be considered for more accurate estimations, especially on larger islands or continents farther from the equator.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100096"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Utilizing nature-based adsorbents for removal of microplastics and nanoplastics in controlled polluted aqueous systems: A systematic review of sources, properties, adsorption characteristics, and performance 利用天然吸附剂去除受控污染水系统中的微塑料和纳米塑料:来源、性质、吸附特性和性能的系统综述
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100119
Aniekan E. Essien, Sarah E. Dickson-Anderson, Yiping Guo
{"title":"Utilizing nature-based adsorbents for removal of microplastics and nanoplastics in controlled polluted aqueous systems: A systematic review of sources, properties, adsorption characteristics, and performance","authors":"Aniekan E. Essien,&nbsp;Sarah E. Dickson-Anderson,&nbsp;Yiping Guo","doi":"10.1016/j.nxsust.2025.100119","DOIUrl":"10.1016/j.nxsust.2025.100119","url":null,"abstract":"<div><div>The pervasive distribution of microplastics and nanoplastics in water systems has raised significant concerns about their ecological and human health impacts. Traditional methods to mitigate plastic pollution are often inadequate, prompting the need for innovative and sustainable solutions. Agricultural waste or by-products (AWBP) are underutilized sources of adsorbents for environmental pollution control, particularly for microplastic and nanoplastic removal. Despite their low cost and high adsorption capacities, AWBP are frequently burned, dumped, or placed in landfills. Most importantly, there remains a notable gap in research, i.e., a systematic review of AWBP-based adsorbents for the removal of microplastics and nanoplastics, which is the novelty of this review. Therefore, using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method, this study reviewed the use of hydrochar, biochar, and activated carbon (collectively termed nature-based adsorbents) for the removal of microplastics and nanoplastics, focusing on their sources, properties, adsorption characteristics, and performance. The principal findings and major conclusions indicate that these adsorbents can achieve up to 100 % adsorption efficiency for the removal of microplastics and nanoplastics. Environmental factors such as pH, temperature, and co-existing species can influence adsorption performance. Functional groups like -COOH, -OH, and -C<img>O enhanced adsorption efficiency. Multiple mechanisms, including physisorption and chemisorption, contributed to high adsorption capacities. The pseudo-second-order kinetic model best described the adsorption processes, with the Langmuir isotherm providing the best fitting. Additionally, these adsorbents offer long-term carbon sequestration and align with several Sustainable Development Goals. This review highlights current knowledge gaps and provides recommendations for future research to further improve this technology.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"5 ","pages":"Article 100119"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143528914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanical and microstructural properties of sustainable ternary blended alkali-activated concrete 可持续三元混合碱活化混凝土的力学和微观结构性能
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100122
Tejeswara Rao Maganti , Krishna Rao Boddepalli
{"title":"Mechanical and microstructural properties of sustainable ternary blended alkali-activated concrete","authors":"Tejeswara Rao Maganti ,&nbsp;Krishna Rao Boddepalli","doi":"10.1016/j.nxsust.2025.100122","DOIUrl":"10.1016/j.nxsust.2025.100122","url":null,"abstract":"<div><div>In recent years, there has been a surge in interest surrounding alkali activated concrete (AAC), a novel type of concrete praised for its environmental and construction applications. This study focuses on ternary blended alkali-activated concrete (TBAAC) using fly ash, ground granulated blast furnace slag (GGBS), and silica fume as binders. It also aims the replacement of sodium silicate (SS) solution with neutral grade sodium silicate (NGSS) solution with a silica modulus (SiO₂/Na₂O) of 3.12 to improve the fresh and hardened properties of TBAAC. In this context, the effects of silica fume and alkaline activators are studied to determine the optimum mix design and to evaluate the fresh and hardened properties of TBAAC cured under ambient conditions. To investigate the performance of TBAAC, various experiments were carried out to measure its workability, compressive strength, splitting tensile strength, flexural strength, regression analysis and microstructural characteristics. The results show TBAAC of 40 % fly ash, 50 % GGBS and 10 % silica fume resulted in higher mechanical properties, including compressive strength (74.12 MPa), splitting tensile strength (18.46 MPa), and flexural strength (20.45 MPa). The results of the XRD, SEM and EDX analysis show the formation of C-A-S-H, C-S-H, and N-A-S-H gel, indicating a densified matrix with fewer cracks and pore spaces. Furthermore, the Life Cycle Assessment (LCA) results demonstrate that the use of NGSS, with its improved environmental profile, leads to a lower environmental impact, contributing to a significant reduction in the carbon footprint of TBAAC and enhancing the sustainability of construction materials. The findings suggest that using NGSS-based TBAAC is advisable for construction applications, offering practical implications for reducing environmental impact while maintaining high performance in construction projects.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100122"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Management of highly toxic arsenic (As3+ and As5+) in water using sodium titanate nanotubes: Integrated kinetic and isothermal studies 使用钛酸钠纳米管管理水中的高毒性砷(As3+和As5+):综合动力学和等温研究
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100170
M. Farid , A.H. Zaki , M.A.F. Basha , Nabila Shehata , M.H. Khedr
{"title":"Management of highly toxic arsenic (As3+ and As5+) in water using sodium titanate nanotubes: Integrated kinetic and isothermal studies","authors":"M. Farid ,&nbsp;A.H. Zaki ,&nbsp;M.A.F. Basha ,&nbsp;Nabila Shehata ,&nbsp;M.H. Khedr","doi":"10.1016/j.nxsust.2025.100170","DOIUrl":"10.1016/j.nxsust.2025.100170","url":null,"abstract":"<div><div>The toxicity of arsenic to humans is confirmed and numerous studies have been investigated its removal from water. Sodium titanates nanotubes (NaTNTs) with different tube lengths (50– 80 nm) and a mean radius of 2.685 nm have been developed by the conventional hydrothermal route. The characterization of the synthesized nanotubes was done using multiple techniques namely FTIR, HRTEM, XRD, and FESEM. The synthesized material was tested for As<sup>3+</sup> and As<sup>5+</sup> removal. The impact of solution (heavy metals) pH, reaction time and heavy metals initial concentrations on the removal percentage have been explored. The results confirmed the successful management of both of As<sup>5+</sup> and As<sup>3+</sup> arsenic ions in water with attained efficiencies of 99 % and 98 %, respectively. Hence, the synthesized nanomaterials can be efficiently applied to manage toxic arsenic in drinking water and groundwater.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100170"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144914071","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
Adsorption of MO dyes using various adsorbents: Past, present and future perspective 各种吸附剂对MO染料的吸附:过去、现在和未来的展望
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100153
Mahesh R. Sonawane , Tarulata N. Chhowala , Kiran E. Suryawanshi , Umesh Fegade , Kalpesh Ani Isai
{"title":"Adsorption of MO dyes using various adsorbents: Past, present and future perspective","authors":"Mahesh R. Sonawane ,&nbsp;Tarulata N. Chhowala ,&nbsp;Kiran E. Suryawanshi ,&nbsp;Umesh Fegade ,&nbsp;Kalpesh Ani Isai","doi":"10.1016/j.nxsust.2025.100153","DOIUrl":"10.1016/j.nxsust.2025.100153","url":null,"abstract":"<div><div>To overcome industrial wastewater effluence, adsorption of dyes using nanoparticles attracted researchers. According to the findings, nanoparticles might be used to effectively remediate colored wastewater. Dyes are a complex family of organic compounds with a broad variety of uses in the textile and food sectors, and a vast number of colors are thrown away and end up in natural water sources. For the sake of the natural environment, dye mixing in water resources must be prevented. This study focuses on modern developments in nanoparticle use for dye wastewater adsorption. Adsorbents (natural and engineered) have been used to effectively adsorb colors from effluent. Due to a unique set of adsorption techniques especially for improving adsorption capacities, and toxicity investigations, nanoparticle achieves great importance in wastewater treatment. This review highlights the value of raw and modified clay as an adsorbent for the removal of colors from textile wastewater. Nano-absorbents offers a lot of economic potential because of their long-term viability in terms of adsorptio<em>n</em> ability, non-toxicity, and cheap cost. Despite the fast development of nanoparticles applications, the technology is still a long way from reaching its ultimate aim of commercialization. Regeneration processes and the handling of textile dye wastewater have received little consideration. The sorption process is rigorously evaluated and appropriate conditions for the metal oxide and bio adsorbent-dye systems, as well as the adsorption properties of a variety of clays, are presented. This investigation aims to study the use of adsorbents, particularly metal oxide bio adsorbents. This article thoroughly reviewed 165 published literature studies on adsorbents from 2015 to 2021 within the last 6 years, and discoursed quality parameters such as pH of the solution, dye concentration, temperature, and adsorbent dose. Moreover, the mechanism and kinetic study of the dye using various adsorbents on have been studied. Showing how well different adsorbents function in reducing MO from aqueous solutions is the goal of this investigation. It will assist in minimizing the arbitrary selection of adsorbent types for MO adsorption.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100153"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662818","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
Improving diffusivity of encapsulated Saccharomyces cerevisiae via porous silica-alginate for enhanced bioethanol production 通过多孔海藻酸硅提高包封酿酒酵母的扩散率以提高生物乙醇的产量
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100166
Bilyamin Abdulmumin , Habiba Iliyasu Atta , Abdulazeez Yusuf Atta , Baba Jibril El-Yakubu
{"title":"Improving diffusivity of encapsulated Saccharomyces cerevisiae via porous silica-alginate for enhanced bioethanol production","authors":"Bilyamin Abdulmumin ,&nbsp;Habiba Iliyasu Atta ,&nbsp;Abdulazeez Yusuf Atta ,&nbsp;Baba Jibril El-Yakubu","doi":"10.1016/j.nxsust.2025.100166","DOIUrl":"10.1016/j.nxsust.2025.100166","url":null,"abstract":"<div><div>Bioethanol production was enhanced through porous silica-alginate/chitosan encapsulation of <em>Saccharomyces cerevisiae</em> in the fermentation process. Glucose was used as a pore-forming agent (PFA) during the silica coating process, with the PFA concentration values of 0 (G-0), 0.75 (G-0.75), 1.5 (G-1.5), and 3 g (G-3). The diffusion coefficient for G-3 was approximately 2.32 cm³ /s, representing an increase of 3.2 times compared to the reference G-0. The bioethanol production significantly increased from G-0 (2.73 ± 0.14 g/L) to G-3 (4.50 ± 0.24 g/L), indicating a 1.7-fold improvement attributed to enhanced membrane diffusivity. Optimal conditions for bioethanol production were determined as 35<span><math><mrow><mspace></mspace><mi>℃</mi></mrow></math></span>, pH 5, and 150 rpm using 30 capsules for 10 g/L glucose. Capsule reusability revealed that G-0 and G-0.75 endured nine cycles, while G-1.5 and G-3 exhibited signs of failure after seven cycles, revealing a delicate balance in enhanced porosity and capsule stability. This result holds promise for alleviating the mass transfer limitations associated with traditional silica-coated/chitosan capsules in bioethanol production.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100166"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144858136","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 quality and human health risk assessment of phthalate esters: A comparison of treated and raw water from Ogbomosho Waterworks, Nigeria 邻苯二甲酸酯的水质和人类健康风险评估:尼日利亚Ogbomosho水厂处理过的水和原水的比较
Next Sustainability Pub Date : 2025-01-01 DOI: 10.1016/j.nxsust.2025.100172
Haleema Omolola Adedosu , Taofik Adewale Adedosu , Peter Olusakin Oladoye , Mohammed Kadhom , Nimotallahi Kanyinsola Lawal , Fadilat Omolola Asoro
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