Environmental Research, Год журнала: 2025, Номер unknown, С. 120900 - 120900
Опубликована: Янв. 1, 2025
Язык: Английский
Environmental Monitoring and Assessment, Год журнала: 2023, Номер 195(6)
Опубликована: Май 19, 2023
Abstract In the present era of significant industrial development, presence and dispersal countless water contaminants in bodies worldwide have rendered them unsuitable for various forms life. Recently, awareness environmental sustainability wastewater treatment has increased rapidly quest meeting global demand. Despite numerous conventional adsorbents on deck, exploring low-cost efficient is interesting. Clays clays-based geopolymers are intensively used as natural, alternative, promising to meet goals combating climate change providing low carbon, heat, power. this narrative work, review highlights persistence some inorganic/organic pollutants aquatic bodies. Moreover, it comprehensively summarizes advancement strategies associated with synthesizing clays their based geopolymers, characterization techniques, applications treatment. Furthermore, critical challenges, opportunities, future prospective regarding circular economy additionally outlined. This expounded ongoing research studies leveraging these eco-friendly materials address decontamination. The adsorption mechanisms successfully presented. Therefore, believed deepen insights into using a groundbreaking aspect accord waste-to-wealth concept toward broader sustainable development goals.
Язык: Английский
Процитировано
25
Journal of Cleaner Production, Год журнала: 2024, Номер 437, С. 140599 - 140599
Опубликована: Янв. 1, 2024
Язык: Английский
Процитировано
15
Journal of Environmental Management, Год журнала: 2023, Номер 343, С. 118236 - 118236
Опубликована: Май 24, 2023
Язык: Английский
Процитировано
22
Construction and Building Materials, Год журнала: 2023, Номер 399, С. 132589 - 132589
Опубликована: Июль 25, 2023
Язык: Английский
Процитировано
21
Construction and Building Materials, Год журнала: 2024, Номер 427, С. 136186 - 136186
Опубликована: Апрель 15, 2024
Язык: Английский
Процитировано
9
Discover Sustainability, Год журнала: 2024, Номер 5(1)
Опубликована: Фев. 26, 2024
Abstract According to the United Nations, Sustainable Development Goals (SDG) goal 6 and 14 seeks ensure sustainable management of water present over earth for all. Urban cities saw a lot expansion in terms population number industries established there. Water quality analysis becomes huge requirement today’s scenario due impurities which harms livelihood society. Some hazardous like heavy metals destruct surroundings. In this study, removal from wastewater with an efficient technique i.e. Bioremediation is represented evaluation results recorded laboratory testing. Two samples were taken two different sites are being analyzed implementation methodology article. The inclusion ANOVA model optimization outcome generated evaluated received P-value F-crit value. algae Chlorella Minutissima & Singularis based on their impurity efficiency as well biological treatment method other chemical methods has been examined. form table variation value WQP shown graphs. observation shows that after integration lies under permissible limit. Alkalinity estimated range 20–40 mg/l, Hardness 0–60mg/l, pH comes approximately 6.5–8. also depicted graphical highlighting result generated. Finally, summary proposed work illustrated challenges faced future recommendations have provided. Based evaluation, framework used metal provides great advancement efficacy metals.
Язык: Английский
Процитировано
8
Environmental Research, Год журнала: 2025, Номер unknown, С. 121182 - 121182
Опубликована: Фев. 1, 2025
Microplastic pollution represents a significant environmental challenge due to its persistence and role as vector for harmful contaminants. Conventional mitigation strategies, such filtration, oxidative degradation, microbial treatments, often exhibit limitations in efficiency, scalability, or result the generation of secondary pollutants. This review examines emerging potential geopolymers sustainable materials microplastic remediation. Owing their high porosity, chemical stability, tunable surface chemistry, regenerative properties, demonstrate considerable promise both adsorbents membrane materials. Extensive research has validated efficacy removal various contaminants, including heavy metals organic For example, fly ash-based modified with cetyltrimethylammonium bromide (CTAB) achieved 98.2% efficiency anionic acid blue 185 (AB185), while porous amorphous synthesized from ash iron ore tailings exhibited copper (Cu2+) uptake capacity 113.41 mg/g at 40 °C. These findings underscore versatility complex wastewater treatment applications. To date, only one direct study explored geopolymer application removal, demonstrating that silane-modified superhydrophobic foam up 99% polyethylene microspheres wastewater. While this highlights feasibility geopolymer-based remediation, dedicated area remains sparse. consolidates existing knowledge on interactions other pollutants inform mechanisms By drawing parallels between pollutants, work identifies transferable principles outlines gaps necessary advance solutions pollution. Overall, affirm geopolymers' transformative addressing contamination, underscoring urgent need further experimental field-based studies domain.
Язык: Английский
Процитировано
1
Polymers, Год журнала: 2023, Номер 15(13), С. 2865 - 2865
Опубликована: Июнь 28, 2023
Untreated wastewater pollution causes environmental degradation, health issues, and ecosystem disruption. Geopolymers offer sustainable, eco-friendly alternatives to traditional cement-based materials for solidification removal. In this study, we investigate how containing organic inorganic pollutants can be removed using geopolymer mixes based on metakaolin incorporation with cement kiln dust as an material. The present investigation compares the efficacy of two different techniques (solidification adsorption) reducing dye contaminants heavy metals from a dust. This study investigated adsorption capacity incorporating ratios (20% 40% by weight) (MC1 MC2) reactive black 5 dyeing bath effluent (RBD) only in combination 1200 mg/L Pb2+ Cd2+, each separately, aqueous solutions under parameters. results technique prepared mixes, MC1 MC2, show that has higher activity than MC2 toward both alone Cd2+ ions separately. also looked at mix stabilize solidify its metal individually inside matrix time intervals up 60 days water curing room temperature. formed during process was analyzed FTIR, SEM, XRD examine phases hydration products formed. showed effectively adsorbs, stabilizes, solidifies dying days, even high concentrations. On other hand, increase mechanical properties when increased days. According our findings, type developed 20 wt.% potential employed treatment because it good mixture Our have significant implications remediation efforts, they sustainable solution managing hazardous waste materials.
Язык: Английский
Процитировано
14
Case Studies in Construction Materials, Год журнала: 2024, Номер 20, С. e03021 - e03021
Опубликована: Март 2, 2024
Neutralization slag (NS) of copper smelting is a waste residue mainly composed calcium sulfate, which produced during the process metal smelting. The large accumulation and storage NS poses significant threat to environment. Therefore, it imperative explore new economically environmentally friendly approach for recycling NS. This study proposes method preparing eco-friendly geopolymer material by utilizing A with satisfactory mechanical properties was created employing hybrid solid activator consisting CaO-Na2SiO3. effects alkali activators oxide (CaO)/sodium silicate (Na2SiO3) ratio on hydration NS-based were studied, its curing mechanism discussed. results show that, when CaO/Na2SiO3 3:1, maximum 28 d compressive strength reached 27.8 MPa. at suitable can accelerate reaction, form higher amounts C-A-S-H gel ettringite, reduce proportion harmful macropores in geopolymer, improve microstructure geopolymer. Toxicity characteristic leaching procedure (TCLP) test confirmed that had solidification effect heavy metals. concentration elemental Pb from neutralised feedstock 7.241 mg/L, while lowest 0.286 mg/L based As green cementitious material, expected be applied engineering practice.
Язык: Английский
Процитировано
5
Construction and Building Materials, Год журнала: 2024, Номер 431, С. 136627 - 136627
Опубликована: Май 15, 2024
Язык: Английский
Процитировано
5