Waste Disposal & Sustainable Energy最新文献

{"title":"A novel manganese ferrite-loaded nanocomposite sorbent synthesized from black cumin (Nigella sativa L.) industrial processing solid waste-based activated carbon for efficient removal of methylene blue dye from water","authors":"Yekbun Avşar Teymur,&nbsp;Fuat Güzel","doi":"10.1007/s42768-025-00250-5","DOIUrl":"10.1007/s42768-025-00250-5","url":null,"abstract":"<div><p>The conversion of industrial biowaste into low-cost and environmentally friendly valuable materials without harm to the environment is very important from an economic perspective. The present work investigated the sorptive remediation performance of methylene blue (MB) dye-contaminated water from a novel magnetic carbon nanocomposite (MnF@BAC) material synthesized by loading manganese ferrite (MnF) nanoparticles onto black cumin (<i>Nigella sativa</i> L.) industrial processing solid waste-based activated carbon (BAC) in a microwave irradiation medium. Batch sorption tests were performed to investigate the effects of process factors such as the sorbent dose, initial dye concentration, contact time, ionic strength, and system temperature. The kinetic data were well fitted to the pseudo-second-order (PSO) model. Sorption occurred through a complex mechanism that included both an intraparticle diffusion step and other steps. The Langmuir isotherm model best describes the equilibrium isotherm data. The maximum MB sorption quantity was 588.2 mg/g. The thermodynamic parameters revealed that sorption was spontaneous and endothermic. Reusability studies revealed that it could be a high-performance sorbent for MB sorption for up to six cycles. In conclusion, the experimental findings emphasize that it can be implemented as a promising, eco-friendly sorbent for treating MB-containing wastewater without causing secondary pollution to the medium.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"689 - 702"},"PeriodicalIF":0.0,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808659","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":"Green synthesis of ZnO and CuO nanoparticles using macadamia nut shell extracts: photocatalytic and antibacterial activities","authors":"Yodchai Tangjaideborisu,&nbsp;Prema Yugala,&nbsp;Choowin Phanawansombat,&nbsp;Paramasivam Shanmugam,&nbsp;Supakorn Boonyuen,&nbsp;Pariya Na Nakorn","doi":"10.1007/s42768-025-00255-0","DOIUrl":"10.1007/s42768-025-00255-0","url":null,"abstract":"<div><p>Green synthesis methods have garnered significant attention as eco-friendly alternatives to conventional chemical approaches, which often involve hazardous substances. In this study, macadamia nut shell extract was used as a natural stabilizing and capping agent for the sustainable and environmentally friendly synthesis of zinc oxide nanoparticles (ZnO NPs) and copper oxide NPs (CuO NPs). The natural compounds present in the macadamia nut shell extract facilitate the formation of these NPs. The synthesized ZnO and CuO NPs were confirmed by various types of spectroscopic and microscopic techniques. X-ray diffraction (XRD) analysis confirmed that the ZnO NPs exhibited a hexagonal wurtzite structure, whereas the CuO NPs displayed a face-centered cubic lattice structure. The green-synthesized NPs demonstrated excellent antioxidant and antimicrobial properties against both gram-positive and gram-negative bacteria. Moreover, the photocatalytic efficiency of the NPs was assessed by examining the degradation of tetracycline, with ZnO demonstrating superior performance to CuO. The antimicrobial activities of the ZnO and CuO NPs were tested against <i>Staphylococcus aureus</i> (strain 902), <i>Escherichia coli</i> (strain 443), <i>Aspergillus niger</i>, and <i>Candida albicans</i>, and promising results were obtained. Furthermore, both ZnO and CuO NPs exhibited synergistic effects when combined with antibiotics. The newly developed green-synthesized ZnO and CuO NPs are simple, cost effective, environmentally friendly, and utilized for various applications, including food packaging, biosensors, and catalysis in pharmaceutical reactions.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"703 - 715"},"PeriodicalIF":0.0,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808662","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":"Green power from scraps: renovating fruit and vegetable waste into high-performance supercapacitor electrodes—a comprehensive review","authors":"Suvamay Pramanik,&nbsp;Sukanta De","doi":"10.1007/s42768-025-00253-2","DOIUrl":"10.1007/s42768-025-00253-2","url":null,"abstract":"<div><p>This review comprehensively examines the potential of activated porous carbon materials derived from fruit and vegetable waste as sustainable electrode materials for supercapacitor applications. Particular emphasis is placed on the synthesis methodologies, physicochemical characterization techniques, and electrochemical performance evaluation, including specific capacitance, energy density, and cycling stability. Recent findings demonstrate that carbon derived from potato peels achieved an exceptionally high specific capacitance of 1987.5 F/g at 0.2 A/g, while carbon derived from corncobs exhibited 1360.0 F/g at 1.0 A/g, highlighting the excellent electrochemical capabilities of certain biomass sources. In contrast, banana peel-derived carbon showed a much lower specific capacitance of 0.8 F/g at 50 mV/s, underlining the critical role of precursor selection and activation strategy. Additionally, this review discusses how different activation techniques applied to the same biomass precursor, such as coconut shells, led to significant variations in surface area (1567.0, 250.5 and 2143.6 m²/g) and corresponding specific capacitance values (449.0 F/g at 1.0 A/g, 186.5 F/g at 10 mV/s, and 317.0 F/g at 0.5 A/g). These observations underscore the profound influence of activation methods on pore structure development, surface chemistry, and resultant electrochemical behaviour. Overall, the study highlights the dual advantages of utilizing biomass waste—advancing high-performance energy storage technologies while promoting environmentally sustainable and cost-effective material production. A comparative analysis is provided to facilitate the identification of optimal precursors and processing techniques for future research and application development.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"777 - 802"},"PeriodicalIF":0.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808724","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":"High-value upcycling of iron ore tailings into stable, non-toxic turquoise pigments for sustainable applications","authors":"Gaofeng Han,&nbsp;Zhongdan Shi,&nbsp;Wenqian Qu,&nbsp;Kailong Nie,&nbsp;Han Lu,&nbsp;Guangyan Tian","doi":"10.1007/s42768-025-00251-4","DOIUrl":"10.1007/s42768-025-00251-4","url":null,"abstract":"<div><p>The transformation of solid waste into high-value-added materials is pivotal for advancing resource circularity and promoting environmental sustainability. In this study, the high-value upcycling of iron ore tailings (IOTs) into environmentally benign, turquoise-colored iron-composite pigments was demonstrated via a facile one-pot hydrothermal synthesis route. Structural and morphological characterization revealed that the as-synthesized pigments exhibit a distinct fusiform microstructure, predominantly composed of giniite and quartz phases, with additional trace elements (Fe, Si, P, Al, and Mg) contributing to their unique chromatic properties. The pigments displayed a vibrant turquoise hue, with Commission Internationale de L’Eclairage (CIE) Lab color coordinates of <i>L</i>*=59.66, <i>a</i>*= −5.98, and <i>b</i>*= −3.57, indicative of stable and aesthetically desirable coloration. Notably, the pigments demonstrated exceptional long-term color stability, maintaining their chromatic properties without significant degradation even after 12 months of ambient atmospheric exposure. Furthermore, the absence of toxic heavy metals and hazardous substances confirms their environmental compatibility and safety for potential industrial applications. This study not only presents a sustainable and scalable strategy for the valorization of IOTs but also contributes to the development of eco-friendly inorganic pigments, aligning with the principles of green chemistry and a circular economy. The findings highlight the potential of mining waste as a valuable resource for high-performance pigment production, offering a promising alternative to conventional synthetic pigments while mitigating the environmental burdens associated with tailings disposal.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"717 - 730"},"PeriodicalIF":0.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808723","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":"Dehydrochlorination of PVC at low-temperatures and the pyrolysis behavior of dechlorinated PVC","authors":"Jiayou Sun,&nbsp;Tianyang Ding,&nbsp;Xue Zhao,&nbsp;Pengcheng Wang,&nbsp;Wen Chen,&nbsp;Jie Yu","doi":"10.1007/s42768-025-00252-3","DOIUrl":"10.1007/s42768-025-00252-3","url":null,"abstract":"<div><p>In this study, the dehydrochlorination reaction of polyvinyl chloride (PVC) was thoroughly investigated at various temperatures and reaction times. Ultraviolet–visible (UV–Vis) and Raman spectroscopies were employed to analyze the conjugated polyene sequences, and Fourier transform infrared spectroscopy (FTIR) was utilized to characterize the functional groups present in the intermediates. The results reveal that in the very initial stages, the dehydrochlorination reaction forms soluble and colored intermediates, primarily consisting of conjugated polyene sequences without crosslinking. As dehydrochlorination progresses, the products become completely insoluble and transform into highly crosslinked black hard chucks. The obtained dehydrochlorinated intermediates were then pyrolysed using pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) to reveal their structures and decomposition mechanism. The core structure of the crosslinked intermediates is likely composed of cyclohexenes or cyclohexadienes. Among the aromatic compounds, benzenes and naphthalenes are the predominant categories with benzene being the most abundant. The crosslinking reaction inhibits benzene formation, leading to increased production of alkyl-aromatic compounds. This study proposes the structure of dehydrochlorinated intermediates and their decomposition mechanism, providing valuable insights for PVC recycling.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"641 - 652"},"PeriodicalIF":0.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808656","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":"A decadal review of carbon-based sustainable materials: chemistry, mechanisms, and environmental applications","authors":"Rajneesh Kumar,&nbsp;Rupinder Singh,&nbsp;Anjali Mishra,&nbsp;Ram Sharan Singh","doi":"10.1007/s42768-025-00249-y","DOIUrl":"10.1007/s42768-025-00249-y","url":null,"abstract":"<div><p>Water contamination is a pressing global issue involving pollutants such as heavy metals, pesticides, pharmaceuticals, microplastics, and nutrients, which are significant threats to ecosystems. Conventional water treatment methods often fail to remove these pollutants effectively. Hence, there is a need for sustainable solutions. Biochar produced through various methods could be a potential solution for environmental problems because of its high surface area, porous structure, and diverse functional groups. Widespread research has been carried out on biochar; however, mostly dispersed information is available. Therefore, in a unified format, this review provides a comprehensive overview of the properties, characteristics, composition, chemistry, mechanisms, and applications of biochar. This study closely examines biochar production and variations in feedstock materials, pyrolysis conditions, adsorption mechanisms, and enhancing efficacy for environmental applications. The potential of biochar for pollutant removal and its interactions with organic, inorganic, and microplastic pollutants have also been explored. The changes in the structural and functional characteristics of biochar due to pollutant interactions have also been discussed. To improve the efficacy of biochar, various modification techniques, such as acid/base treatments, metal impregnation, and thermal treatments, have also been used. Despite its potential, this technology faces challenges such as property variability, high production costs, and potential environmental impacts. This review suggests that the potential of biochar for environmental remediation is influenced by various factors that can be optimized to improve its removal efficacy for targeted pollutants.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 4","pages":"753 - 776"},"PeriodicalIF":0.0,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145808727","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":"Remediation of arsenic-contaminated water: high effectiveness of modified biochars from legal amazon residues","authors":"Mariana de Souza Borges,&nbsp;Magale Karine Diel Rambo,&nbsp;Fabio Andrei Duarte,&nbsp;Robert Alan Burrow,&nbsp;Elisandra Scapin","doi":"10.1007/s42768-025-00235-4","DOIUrl":"10.1007/s42768-025-00235-4","url":null,"abstract":"<div><p>Arsenic contamination in water poses a significant global health risk, especially in regions with mining activities, such as the Legal Amazon. This study investigated the efficacy of iron-impregnated biochar, derived from three abundant fruit wastes native to the Legal Amazon region (baru, cupuaçu, and pequi), in removing As(V) from water. The biochars were characterized by techniques including elemental analysis, Brunauer–Emmett–Teller (BET) surface area determination, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The results indicate that iron impregnation significantly modified the surface properties of the biochar, leading to an increase in surface area and the introduction of new functional groups. A response surface methodology, employing a central composite design (CCD), was utilized to optimize the adsorption process by varying the biochar dosage (g L⁻¹), the initial concentration of As(V) (µg L⁻¹), and the pH. The findings demonstrate that all three iron-modified biochars exhibit high arsenic removal efficiencies, exceeding 90% under all tested conditions. The optimal conditions for each biochar varied, suggesting that the unique surface chemistry and porosity resulting from the different biomass sources play critical roles in the adsorption performance. Furthermore, a comparative analysis revealed the differences in adsorption capacities among the biochars, with the Cupuaçu shell biochar showing the highest efficiency. Overall, these results highlight the potential of utilizing readily available fruit waste to develop sustainable and effective adsorbents for arsenic remediation. The FeCl₃ impregnation method proved simple yet effective, showing a particular promise for applications in resource-limited communities.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 3","pages":"381 - 391"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078841","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":"Artificial intelligence in sustainable organic waste treatment: a review","authors":"Dharshika Sugumaran,&nbsp;Madushan D. Udakandage,&nbsp;Sanduni P. Kodippili,&nbsp;Maleesha M. De Alwis,&nbsp;Danushika L. Attigala,&nbsp;Neeliya N. Ranasinghe,&nbsp;Danushika C. Manatunga,&nbsp;Rohan S. Dassanayake,&nbsp;Yang Zhou,&nbsp;Yuanyuan Liu","doi":"10.1007/s42768-025-00246-1","DOIUrl":"10.1007/s42768-025-00246-1","url":null,"abstract":"<div><p>Waste and waste generation are inevitable aspects of human life, especially organic waste, and have evolved with societal and industrial development. Waste generation cannot be entirely prevented, but it can be treated, managed, and minimized through various sustainable practices to mitigate its environmental and health impacts. Current organic waste management techniques include composting, anaerobic digestion, incineration, and hydrothermal treatment. Even though these techniques help to treat and manage organic waste, they face numerous challenges, such as the complexity of organic waste, difficulty in collection and segregation, water pollution, and greenhouse gas (GHG) emissions. Notably, there is an urgent need to reduce and control the large volume of waste generated in a short timeframe. Artificial intelligence (AI)- and machine learning (ML)-based waste management systems have recently been considered for treating organic waste due to their optimized waste collection routes, automatic sorting, efficient recovery, and contaminant reduction. In particular, AI models can facilitate and accelerate the implementation of the circular economy concept, thereby maximizing resource optimization to achieve the United Nations (UN) sustainable development goals (SDGs). The current review summarizes recently published research studies on AI-based technologies and their applications in organic waste treatment and management, including the prediction and monitoring of waste generation, automated waste collection, sorting, classification, bioconversion and treatment process optimization, waste recycling, bin-level monitoring, and vehicle routing. The major prospects and challenges of using AI technology in organic waste treatment, as well as the future directions of AI-based waste management practices, are also discussed. This review also provides exclusive coverage of various types of organic waste, conventional organic waste treatment methods and their limitations, as well as the role of organic waste management in achieving the SDGs.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 3","pages":"539 - 560"},"PeriodicalIF":0.0,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078843","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":"Plastic waste and residual waste management: a case study of the Pathum Thani dumpsite in Thailand","authors":"Pawan Kumar Srikanth,&nbsp;Suwanna Kitpati Boontanon,&nbsp;Chettiyappan Visvanathan","doi":"10.1007/s42768-025-00245-2","DOIUrl":"10.1007/s42768-025-00245-2","url":null,"abstract":"<div><p>Most developing countries commonly dispose of solid waste fractions in open dumps and landfills. This study analysed the composition of municipal solid waste (MSW) at a dumpsite in Thailand, where plastic waste constituted 35%–62% of excavated waste across different sampling depths. Excavated plastic waste was classified by resin codes, with low-density polyethylene (LDPE) dominating 86% of plastic waste from 2012 to 2014 and decreasing to 43% in 2019. The analysis revealed that unbranded single-layer packaging predominated, with branded plastics increasing from 4% to 6% (2012, 2013, and 2014) to 17% (2019). Dumpsite mining operations at the Pathum Thani site produced approximately 100 t of refuse-derived fuel (RDF) per day, generating revenue of 800–1200 THB per ton. However, the process also generated 40–50 t of residual waste daily, consisting of soil-like material mixed with plastic waste (20% plastics, 35% combustible fractions, and the remaining mainly soil type materials). These residues failed Thai compost standards due to high electrical conductivity (8.2 dS/cm vs. standard ≤3.5 dS/cm) and low germination index (4.43% vs. standard ≥80.00%). Recommendations include adjusting the moisture content of input waste and modifying sieve sizes to improve output quality, with approximately 50% of soil fractions potentially recoverable through screening at &lt;12.5 mm. The study estimates total plastic waste in the dumpsite to be 36559.79 t, with a potential revenue of 35 million THB if fully processed. The implementation of site-specific management studies, promotion of dumpsite mining, reduction of unbranded plastics consumption, and extended producer responsibility (EPR) policies are crucial for achieving circularity of plastic waste fractions.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 3","pages":"469 - 480"},"PeriodicalIF":0.0,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078990","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":"Exploration on using solid waste-derived sulphoaluminate composite as low-cost binder for high-impermeability stabilization of sandy soil","authors":"Shuang Zhang,&nbsp;Jingwei Li,&nbsp;Wenbin Shi,&nbsp;Fawei Lin,&nbsp;Bigaliev Aitkhazha Bigalievich,&nbsp;Eminov Ashraf Mamurovich,&nbsp;Wenlong Wang","doi":"10.1007/s42768-025-00248-z","DOIUrl":"10.1007/s42768-025-00248-z","url":null,"abstract":"<div><p>Large-scale utilization of solid waste is the key challenge in building sustainable infrastructure. Given the high demand for sandy soil stabilizers in subgrades, dams and other infrastructure projects and the high permeability of sandy soil, a sulphoaluminate composite cementitious material (SCCM) was developed by incorporating solid waste-derived sulphoaluminate cementitious material (SAC), desulfurized gypsum, ground granulated blast furnace slag (GGBS), and supplementary industrial byproducts, which can be used as high-permeability stabilizers for sandy soil. The economic and environmental assessment revealed that the carbon emission factor of the SCCM throughout their whole life cycle was 135.8 kg/t. The results revealed that the unconfined compressive strength (UCS) of stabilized sandy soil for 28 d was the highest among all the stabilized sandy soils, and the 28 d immersion stability rate was 72.5%. The 28 d permeability coefficient of sandy soil stabilized by SCCM decreased from 8.7×10⁻⁴ cm/s for natural sandy soil to 5.7×10⁻⁷ cm/s, which was 1–2 orders of magnitude lower than that of SAC and ordinary Portland cement (OPC) stabilized sandy soil. Both scanning electron microscopy (SEM) and X-ray diffraction (XRD) showed the co-existence of ettringite and hydrated calcium silicate gel, and their addition improved the properties of the stabilized sandy soil. The results of the low-field nuclear magnetic resonance (LF-NMR) test revealed that the porosity of the SCCM stabilized sandy soil was lower than that of the SAC stabilized sandy soil and OPC, resulting in a dense structure. This study provides an innovative solution for the utilization of bulk solid waste in stabilizing sandy soil in infrastructure projects.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":807,"journal":{"name":"Waste Disposal & Sustainable Energy","volume":"7 3","pages":"481 - 493"},"PeriodicalIF":0.0,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145078904","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}