Next Sustainability最新文献

{"title":"Carbon stocks and sequestration potential in urban reserve forests: Insights for climate change mitigation","authors":"Gisandu K. Malunguja ,&nbsp;Suniva Aligonza ,&nbsp;Ratan Chowdhury ,&nbsp;Mhuji B. Kilonzo ,&nbsp;Bijay Thakur ,&nbsp;Ashalata Devi","doi":"10.1016/j.nxsust.2025.100161","DOIUrl":"10.1016/j.nxsust.2025.100161","url":null,"abstract":"<div><div>Monitoring forest carbon stock and sequestration potential is vital for evaluating the role of forestry in Carbon dioxide (CO₂) removal. Urban reserve forests (URFs) established in Indian cities as part of urban greening strategy, contribute significantly to CO₂ offset. However, their information on CO₂ removal for climate change mitigation is limited. To bridge this knowledge gap, an inventory survey employing both destructive and non-destructive techniques were used to estimate this. The estimated total carbon stock was 218.75 Mg ha⁻¹ for Bhomoraguri URF and 236.15 Mg ha⁻¹ for Balipara URF, which is equivalent to 799.1 Mg CO₂ ha⁻¹ and 866.65 Mg CO₂ ha⁻¹ of CO₂ being sequenced for, respectively. The noted carbon stock varied across carbon pools, with the highest contributions from SOC (113.6 Mg ha⁻¹ in Bhomoraguri and 124.85 Mg ha⁻¹ in Balipara), followed by overstory layer (97.33 and 103. 25 Mg ha⁻¹) and the lowest from herbs layers (2.68 and 3.05 Mg ha⁻¹ in Bhomoraguri and Balipara, respectively). The top contributors to carbon stock in the overstory are <em>Tectona grandis</em>, <em>Dalbergia sissoo</em>, and <em>Ficus hirta</em>. In the understory layer, species such as <em>Bidens reptans</em>, <em>Cynodon dactylon</em>, and <em>Piper betle</em>, showed notable contributions to carbon sequestration. The substantial carbon stock and sequestration potential suggests that URFs have the potential to serve as carbon sinks, helping to offset increased atmospheric CO₂ levels. The results offer valuable insights for climate mitigation and underscore the potential of nature-based solutions in addressing global climate challenges under various future climate scenarios.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100161"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144723146","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}

{"title":"Review for the synergistic effects in catalytic co-pyrolysis of biomass and plastic waste: Pathways to sustainable energy","authors":"Shaikh Abdur Razzak ,&nbsp;Hayat Haddad ,&nbsp;Ahmad Nawaz ,&nbsp;Mohammad Mozahar Hossain","doi":"10.1016/j.nxsust.2025.100157","DOIUrl":"10.1016/j.nxsust.2025.100157","url":null,"abstract":"<div><div>To address the growing need for renewable chemicals and fuels, finding alternatives to petroleum-based products is essential. One innovative solution is the catalytic co-pyrolysis of microalgae biomass with other waste feedstocks. This study focuses on co-pyrolysis to produce renewable chemicals from microalgae biomass with other waste feedstocks. The study investigates the transformation of bio-oil and biochar into useful products and evaluates their potential in chemical production. The study also looks at the characteristics of algal biomass and other feedstocks, and how they influences the co-pyrolysis outcomes. Additionally, it includes kinetic analyses and reaction pathways to gain insights into the complex chemical transformations during co-pyrolysis, revealing underlying reaction mechanisms. This approach not only enhances our understanding of microalgae with other waste feedstocks interactions during pyrolysis, but also highlights their significant implications for waste management and materials synthesis. By consolidating these aspects into a unified framework, the study outlines the challenges and future directions in this field, positioning catalytic co-pyrolysis (CCP) as a promising avenue for sustainable energy production and improved waste management practices.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100157"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144679266","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}

{"title":"Synergistic mechanical and environmental performance of cow bone ash-brass dross hybrid composites for ceiling applications","authors":"Gideon I. Samuel ,&nbsp;Joshua O. Atiba ,&nbsp;Ojo S.I. Fayomi","doi":"10.1016/j.nxsust.2025.100179","DOIUrl":"10.1016/j.nxsust.2025.100179","url":null,"abstract":"<div><div>This study investigates the synthesis of eco‑composite ceiling boards via valorization of brass dross and cow bone ash (CBA) in an epoxy matrix for enhanced thermal, mechanical, and fire-resistant behavior. Brass dross with 45.8 wt% Cu and 25.3 wt% Zn, and CBA with 26.0 wt% CaO, were wet‑ground to 300 µm and incorporated in the range 0–10 wt% into open-mould-fabricated panels (300 × 300 × 12 mm). Microstructural analysis by SEM/EDS proved porous dispersion pf CBA at 10 % wt% CBA, with agglomeration over higher loadings. Mechanical properties proved optimal flexural strength (2.415 MPa) and hardness (88 N/mm²) at 3.33 wt% and 6.67 wt% CBA, respectively, followed by small decreases at 10 wt% by virtue of particle clustering, partially compensated by metal reinforcement. Modulus of rupture and elasticity were greatest at intermediate CBA contents, implying an optimum stiffness-toughness trade-off. Water absorption displayed a non‑linear pattern with a peak at 0.23 % at 3.33 wt% CBA, afterward decreasing as improving brass dross ensured matrix integrity. Thermal conductivity enhanced up to 6.67 wt% CBA (0.138 W/mK) and reduced at 10 wt%, but specific heat capacity improved by 25.7 % at 6.67 wt%. These observations indicate that industrial and agricultural wastes hybridization has the potential to deliver ceiling panels of competitive performance and sustainability quality.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100179"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010164","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}

{"title":"Forecasting of municipal solid waste generation in Türkiye and techno-economic-environmental assessment of electricity generation via incineration till 2032","authors":"Mehmet Melikoglu","doi":"10.1016/j.nxsust.2024.100092","DOIUrl":"10.1016/j.nxsust.2024.100092","url":null,"abstract":"<div><div>This paper develops a forecasting model for municipal solid waste (MSW) generation and its potential for energy recovery through incineration in Türkiye. MSW generation in 81 provinces of Türkiye are forecasted till 2032 using novel semi-empirical models based on two different scenarios. It is forecasted that Türkiye’s MSW generation in 2032 will reach up to 36.2 million tonnes and from incineration of this MSW up to 16.8 TWh of electricity worth 2.1 billion US$ (based on 2024 June wholesale industrial prices) can be generated. Nationwide greenhouse gas (GHG) emissions from incineration of MSW for electricity generation can reach 19.7 million tonnes of carbon dioxide in 2032. Root mean squared error and mean absolute percentage error values indicated high goodness of fit and accuracy for the forecasting models. As future research it is suggested that the methodology given in this study can be used by others for forecasting MSW generation with energy recovery as electricity via incineration and associated GHG emissions calculations in different countries conditional that historic geographical per capita data is available and associated model parameters are calculated based on existing circumstances.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"5 ","pages":"Article 100092"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143140691","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}

{"title":"Dye adsorption on fish scale biosorbent from tannery wastewater","authors":"Md. Abul Hashem ,&nbsp;Forhad Ahammad ,&nbsp;Bishwajit Chandra Das ,&nbsp;Eshtiyaq Tauhid Enan ,&nbsp;Modinatul Maoya ,&nbsp;Mohammad Jakir Hossain Khan ,&nbsp;Md. Mukimujjaman Miem","doi":"10.1016/j.nxsust.2025.100112","DOIUrl":"10.1016/j.nxsust.2025.100112","url":null,"abstract":"<div><div>In leather processing, dyeing is an essential operation to make it attractive for fashion style. Emitted dyeing wastewater contains dye, fixing agent, syntan, resin, and fat. Dye removal from real wastewater is challenging because it includes other matrices. Dyes in wastewater have an adverse influence on the aquatic ecosystem. This research concerns the suitability of fish biowaste adsorbent for dye removal from tannery wastewater. The obtained biosorbent was analyzed through Fourier Transform Infrared (FTIR) Spectroscopy, pH point of zero charge (pHpzc), Energy Dispersive Spectroscopy (EDS), and Scanning Electron Microscope (SEM). The dye removal efficiency was evaluated by monitoring the biosorbent dose, settling time, stirring time, and temperature effect. The dye adsorption mechanism was characterized using Freundlich and Langmuir’s regression models. The maximum dye removal efficiency (81.8 %) was achieved with a 2 g biosorbent dose per 50 mL of wastewater, 25 min stirring time, 30°C temperature, and 20 h settling time at pH 4.8. The adsorption kinetics demonstrated that the pseudo-second-order reaction (PSO) model shows a good regression coefficient (<em>R</em>^<em>2</em>=0.94). The removal of Total Dissolved Solids (TDS), Biochemical Oxygen Demand (BOD), turbidity, and Chemical Oxygen Demand (COD) were 39.8 %, 69.7 %, 48.1 %, and 90.1 %, respectively. Hence, the fish scale biosorbent could be a feasible adsorbent for leather dyeing wastewater treatment, and further research can be conducted to explore its potential for large-scale application.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100112"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143377915","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}

{"title":"Sustainable 3D printing of bone scaffolds using animal biowaste feedstocks","authors":"A. Dukle,&nbsp;M. Ravi Sankar","doi":"10.1016/j.nxsust.2025.100099","DOIUrl":"10.1016/j.nxsust.2025.100099","url":null,"abstract":"<div><div>Numerous 3D printing feedstocks are currently being studied for the 3D printing of bone scaffolds for bone regeneration, with differing degrees of success. Most of these feedstocks are produced using ceramics, polymers, and composites. However, the currently available feedstocks are costly and have a significant impact on the environment during production and distribution. On the other hand, every day, a large amount of biowaste is produced from plant, animal, and microbial sources, which are becoming increasingly difficult to manage. Therefore, there is always a demand for efficient disposal and recycling methods. This study provides an overview of the use of biowaste-derived 3D printing feedstocks for bone tissue engineering applications. In recent years, biowaste, which is a renewable and cost-effective source, has been explored as a potential alternative to conventional feedstocks. This paper covers various types of animal derived biowastes and highlights their potential advantages for bone tissue engineering. It also discusses different properties, including rheology, mechanical strength, printability, and bioactivity for bone tissue engineering applications. The study also addresses the challenges and future perspectives of biowaste-derived feedstocks for bone tissue engineering, including regulatory hurdles, biocompatibility, and scalability.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"5 ","pages":"Article 100099"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143379096","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}

{"title":"Path of carbon dioxide capture technologies: An overview","authors":"Ashokkumar Shyam ,&nbsp;Kalilur Rahiman Arshad Ahmed ,&nbsp;Jeyaraman Prasanna Naveen Kumar ,&nbsp;Selvarasan Iniyan ,&nbsp;Ranko Goic","doi":"10.1016/j.nxsust.2025.100118","DOIUrl":"10.1016/j.nxsust.2025.100118","url":null,"abstract":"<div><div>Global warming and climate change is a critical issue worldwide. Carbon dioxide (CO₂) emissions from human activities are considered to be one of the major pollutants among all the anthropogenic greenhouse gases (GHGs) contributing to global warming. The total carbon dioxide emissions can be reduced either by efficient use of low carbon fuels and also by using hydrogen and renewable energy systems and also by employing efficient carbon capture technologies. Among the aforesaid three approaches, carbon dioxide capture and storage is the most promising approach. There are literally around 50–60 different ways of carbon dioxide capture technologies available as from traditional approaches like physical absorption, chemical absorption, mixed solvents, and membrane based absorption to modern methodologies like cryogenic separation, gas hydrates, advanced membrane, mineral carbonation, biological fixation, direct air capture and storage. This review paper tries to address all the key available carbon capture technologies from lab-scale prototypes to commercial practices. In addition, this article attempts to provide a clear introduction and cumulative comparison of all the carbon dioxide capture technologies.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100118"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479281","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}

{"title":"Enhanced flux and fouling performance via H2N@ZSM-22 infused thin-film composite membranes on ZSM-22/PES-UF support","authors":"Nyiko M. Chauke ,&nbsp;Richard M. Moutloali ,&nbsp;James Ramontja","doi":"10.1016/j.nxsust.2024.100097","DOIUrl":"10.1016/j.nxsust.2024.100097","url":null,"abstract":"<div><div>In this study, advanced polyamide thin-film composite (PA-TFC) membranes incorporating zeolite (ZSM-22) and amine-zeolite (H₂N@ZSM-22) fillers were synthesised <em>via</em> interfacial polymerisation (IP) to enhance water permeability performance and anti-fouling behaviour. The incorporation of zeolite and amine-zeolite ZSM-22 in the selective PA layer resulted in distinct ridge-like and valley-like surface morphologies, contributing to improved hydrophilicity and fouling resistance. Comprehensive characterisation using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and water contact angle (WCA) analysis confirmed the successful incorporation and uniform dispersion of zeolite and amine-zeolites fillers within the PA layer. The functionalised PA layers demonstrated superior hydrophilicity, resulting in significant improvements in water flux, high anti-fouling ratios and salt rejection compared to the zeolite PA-TFC membranes. The obtained PA-TFC membrane structural design, supported on ZSM-22/polyethersulfone ultrafiltration (ZSM-22/PES UF) substrate, played a crucial role in ensuring mechanical stability and promoting interfacial bonding. The amine-zeolites PA-TFC membranes achieved exceptional water fluxes, reaching up to 48.92 L·m⁻²·h⁻¹ ·bar⁻¹ , and exhibited fouling ratios ranging from 65.78 % to 73.68 % as well as salt rejection to about 77 %. Notably, the H₂N@T60-ZSM-22/PA@ZSM-22/PES configuration showed the lowest fouling ratio of 65.78 % and higher salt rejection, demonstrating the potential for selective filtration under low-pressure conditions. Despite minimal performance variations among the different membrane configurations, consistent and robust antifouling behavior was observed across all samples. These findings underscore the promise of amine-zeolite ZSM-22 PA-TFC membranes as high-performance candidates for achieving enhanced flux, fouling resistance, and selective separation, contributing valuable insights for the advancement of membrane technology in water treatment applications.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100097"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163057","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}

{"title":"Comparison of high-volume and low-volume air samplers for particulate matter air pollution measurement in Rwanda, East Africa","authors":"Augustine Omodieke,&nbsp;Egide Kalisa","doi":"10.1016/j.nxsust.2025.100193","DOIUrl":"10.1016/j.nxsust.2025.100193","url":null,"abstract":"<div><div>Particulate matter (PM) air pollution is recognised as the leading cause of premature human mortality in Africa. However, air pollution monitoring is limited in African countries like Rwanda due to insufficient funding for operating the high-cost reference-grade stations used to measure real-time PM and the technical expertise required for calibrations. In this study, we compared the performance of the most commonly used air samplers (high- and low-volume air samplers (HI-VOL and LO-VOL)) for collecting PM₁₀ (particulate matter &lt;10 μm) on a glass fibre filter. A total of 42 samples were analysed, with 21 from each sampler, collected simultaneously over a two-month period in two locations (rural and urban) in Rwanda. The 24-hour mean PM₁₀ concentrations exceeded the WHO air quality recommended limit at both sites. A Student's t-test indicated that the average 24-hour PM₁₀ concentrations at the urban site showed no significant difference between the HI-VOL and LO-VOL concentrations; however, at the rural site, significantly higher PM₁₀ concentrations were observed with the HI-VOL than the LO-VOL. Our results indicate that LO-VOL samplers were as effective as the standard HI-VOL and could be used in monitoring aerosols. LO-VOLs are significantly more affordable (saving about CAD 10,000) than HI-VOL options. Therefore, LO-VOL samplers have potential benefits and could serve as alternative and educational solutions for air quality data collection in Africa, where gravimetric PM mass and aerosol composition are scarce.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100193"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145218886","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}

{"title":"Recovery of radio chemically pure 90Sr suitable for milking clinical grade 90Y from high level liquid waste: A process developmental investigation","authors":"Pasupati Nath Khan ,&nbsp;Sumit Pahan ,&nbsp;A. Sengupta ,&nbsp;Tessy Vincent","doi":"10.1016/j.nxsust.2025.100111","DOIUrl":"10.1016/j.nxsust.2025.100111","url":null,"abstract":"<div><div>Radio chemically pure ⁹⁰Y is desired for its use as radio therapeutic agent. As a modern practice ⁹⁰Y, is milked from its parent ⁹⁰Sr, thus the radiochemical purity of resulted ⁹⁰Y will be governed by the purity of its parent Sr. High level liquid waste (HLLW) generated from the spent nuclear fuel reprocessing contains ample quantity of ⁹⁰Sr, the parent of its β decaying product ⁹⁰Y. In our previous studies it was explored that BOC8A/ Nitrooctane can be preferably used to recover ⁹⁰Sr in 0.01 M HNO₃ from HLLW with ∼1 % Am (III) &amp; Eu (III) contamination. Thus, ⁹⁰Sr recovered needs multi step purification before milking ⁹⁰Y. To minimise the number of step in purification to obtain ultrapure ⁹⁰Sr (10⁻⁹ Ci alpha / Ci Sr) a well-known hydrophilic supramolecule 18C6 is introduced in the stripping step. A new process scheme has been developed using BOC8A, 18C6 and Tetra-2-ethylhexyl diglycolamide etc. CHON based extractant to obtain highly pure ⁹⁰Sr product. The mechanism and effect of different parameters on stripping of Sr with 18C6 have also been investigated in detail. The stripping phenomenon has been found to be spontaneous at 298 K and the change in Gibb’s free energy was found to be - 22.9 kJ mol⁻¹K⁻¹</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100111"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403021","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}