Next Sustainability最新文献

{"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":"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}

{"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":"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":"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":"Integrating experimental-based vulnerability mapping with intelligent identification of multi-aquifer groundwater salinization","authors":"Mohamed A. Yassin ,&nbsp;Sani I. Abba ,&nbsp;A.G. Usman ,&nbsp;Syed Muzzamil Hussain Shah ,&nbsp;Isam H. Aljundi ,&nbsp;Shafik S. Shafik ,&nbsp;Zaher Mundher Yaseen","doi":"10.1016/j.nxsust.2025.100115","DOIUrl":"10.1016/j.nxsust.2025.100115","url":null,"abstract":"<div><div>Groundwater salinization is a pressing global issue, threatening water security and sustainable development in many regions. In alignment with Saudi Vision 2030 and the Sustainable Development Goals (SDGs), this study addresses groundwater salinity challenges in the coastal regions of eastern Saudi Arabia through comprehensive experimental analysis and advanced mapping techniques. Groundwater samples were analyzed using ion chromatography (IC) and inductively coupled plasma mass spectrometry (ICP-MS) to determine salinity levels. The data were processed using ArcGIS 10.3 software to create vulnerability maps, supported by five artificial intelligence (AI)-based models for robust predictions and enhanced insights. Model performance was assessed using statistical parameters, including Nash–Sutcliffe efficiency (NSE), root mean square error (RMSE), Pearson correlation coefficient (PCC), and mean square error (MSE). Among the models, interactive learning (ILR-M3) delivered the best results (RMSE=0.0385; MSE=0.0015), while all models were validated as satisfactory. This research highlights the potential of combining experimental data with AI-driven approaches for effective water resource management. The outcomes directly support Saudi Vision 2030 and contribute to achieving the SDGs by advancing sustainable and intelligent solutions for global water security challenges.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"5 ","pages":"Article 100115"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487382","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":"Maximum scour depth estimation around side-by-side piers due to spacing effects for sustainable hydraulic infrastructure design","authors":"Buddhadev Nandi ,&nbsp;Subhasish Das","doi":"10.1016/j.nxsust.2025.100134","DOIUrl":"10.1016/j.nxsust.2025.100134","url":null,"abstract":"<div><div>A lot of research has been done on single bridge piers using experimental, numerical or database-driven models. However, there have not been many studies on groups of piers placed next to each other in the cross-flow direction. This is important for bridge design, especially with increased traffic and new bridge structures being built. Closely spaced piers often have to be placed side by side to meet the growing traffic demand. This paper reviews past research on how water flows around side-by-side piers, focusing on its impact on scouring around the piers under clear water conditions. This paper thoroughly examines how various hydraulic factors, as discussed in previous studies, influence the maximum depth of scour (<em>d</em>_<em>m</em>) including flow intensity, flow shallowness, sediment coarseness, constriction ratio, time, and side-by-side pier spacing<em>.</em> A new formula using Multiple Non-Linear Regression (MNLR) and Partial Least Squares Regression (PLSR) has been developed to determine <em>d</em>_<em>m</em> around side-by-side piers and compared with the existing literature formulas. The formulas are evaluated using statistical parameters like correlation coefficient (R), Nash Sutcliffe Efficiency (NSE), Normalised Root Mean Squared Error (NRMSE), and Index Agreement (IA). Notably, the newly developed formula for side-by-side pier using MNLR shows the best performance with R= 0.93, NSE= 0.86, NRMSE= 0.09, IA= 0.96, and 96 % of values within ± 80 % accuracy. This study investigates flow structure interaction, based on how the pier spacing influences <em>d</em>_<em>m</em>. The goal is to enhance the understanding of scour around side-by-side bridge piers, contributing to the development of resilient and sustainable infrastructure.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"5 ","pages":"Article 100134"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144068428","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":"California’s Senate Bill 596: Spearheading the global transition to sustainable cement","authors":"Kenneth C. Johnson","doi":"10.1016/j.nxsust.2025.100106","DOIUrl":"10.1016/j.nxsust.2025.100106","url":null,"abstract":"<div><div>The so-called “hard to abate” cement industry is at the cusp of a foundational technology transformation. Emerging technologies could make cement production carbon-neutral or carbon-negative, and could potentially do so profitably. California is well-positioned to spearhead the global transition to sustainable cement with its Senate Bill 596 (Becker 2021), which directs the California Air Resource Board (CARB) to “develop a comprehensive strategy for the state’s cement sector to achieve net-zero emissions of greenhouse gases associated with cement used within the state as soon as possible […]” CARB’s SB 596 strategy could serve as a model policy framework for other states’ and nations’ climate policies. This paper proposes a regulatory strategy for cement decarbonization, which includes carbon pricing and financing mechanisms to support and accelerate early-stage development and subsequent commercial adoption of sustainable cement technologies in California, pursuant to the broader goal of expediently decarbonizing the global cement industry.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100106"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162226","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":"Performance of concrete containing different ratios of metakaolin and magnetized water","authors":"Mostafa M. Keshta ,&nbsp;Mohamed M. Yousry Elshikh ,&nbsp;Ahmed M. Elkerany","doi":"10.1016/j.nxsust.2025.100107","DOIUrl":"10.1016/j.nxsust.2025.100107","url":null,"abstract":"<div><div>Metakaolin (MK) is an eco-friendly cementitious material. Incorporating MK as a partial or additive for cement in concrete can negatively affects its workability, especially at higher replacement levels, and may also adversely affect concrete strength. Magnetized water (MW) is a technique of treating regular tap (TW) water by exposing it to a magnetic field with a specific intensity and a certain number of cycles, making the water magnetized. The incorporation of MK and MW in concrete promotes sustainability by reducing cement consumption, thereby lowering carbon emissions. This research investigates the effects of using magnetized water (MW), prepared in a magnetic field of 1.4 tesla, on the workability and compressive strength of concrete containing MK in different ratios. MK was incorporated at 5 %, 10 %, and 20 % as either a partial replacement or additive to cement by weight. Two sets of concrete mixes were prepared: one with MK (ranging from 0 % to 20 % as a replacement and additive) mixed with ordinary tap water (TW), and the other with the same MK percentages mixed with MW. The results of the hardened concrete tests indicated that the optimal MK ratio for concrete was 10 + % (10 % as an addition to cement), whether or not MW was used. The slump of concrete decreased when TW was used; however, using MW improved the slump by up to 2 %. The compressive strength increased by 13 %, 11 %, and − 5 % at 7, 28, and 365 days, respectively, with no MK and the use of MW. When 10 + % MK was used with MW, the compressive strength improved by 5 %, 0 %, and − 5 % at 7, 28, and 365 days, respectively. Also, in the SEM images, the cement pastes in the presence of MK and MW became denser and more cohesive compared to the control mix without them, indicating an improvement in the hydration process with the efficient use of MW. Also, FTIR analysis was conducted to the optimal mixes to show the function groups of these mixes in microscale. Finally, the results of water properties indicated that using MW increase TDS and pH up to 14 % compared to using TW.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100107"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143162227","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":"Energy-related contaminants in subterranean waterbodies: The role of geocolloids on facilitated and hindered transport","authors":"Mustafa E.S. Akbulut ,&nbsp;Younjin Min","doi":"10.1016/j.nxsust.2024.100094","DOIUrl":"10.1016/j.nxsust.2024.100094","url":null,"abstract":"<div><div>The examination of energy byproduct transport and associated contaminant dynamics in geosystems and aquatic ecosystems is important for evaluating the ramifications of energy generation and consumption. This article critically reviews contemporary studies on the influence of aqueous geocolloids in modulating the transport kinetics of energy-related contaminants within subterranean hydrological systems. The primary objectives of this work are to: i) introduce the morphological and physicochemical properties of prevalent geocolloid varieties and explain their formation mechanisms, ii) outline the mechanistic pathways by which geocolloids alter contaminant transport dynamics, and iii) analyze the ramifications for applications such as coal mining, hydraulic fracturing, chemically-enhanced oil recovery, and radionuclide storage. A systematic literature review was conducted, synthesizing findings from experimental investigations, computational simulations, and field observations. These studies reveal that geocolloids can facilitate or impede contaminant mobility by modifying parameters such as effective diffusivity, rheological properties, and interfacial deposition kinetics across multiple spatiotemporal scales. The presence of geocolloids introduces non-linear complexities in contaminant fate and transport that go beyond conventional advection-dispersion models. These topics have significant implications for risk assessment methodologies and remediation strategies related to energy production and waste management in geological formations, particularly in terms of colloid-facilitated contaminant transport and its impact on the vulnerability of waterbodies and geosystems.</div></div>","PeriodicalId":100960,"journal":{"name":"Next Sustainability","volume":"6 ","pages":"Article 100094"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143163064","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}