Journal of Materials Science Materials in Electronics, Год журнала: 2024, Номер 35(6)
Опубликована: Фев. 1, 2024
Язык: Английский
ACS Omega, Год журнала: 2023, Номер 8(20), С. 17407 - 17430
Опубликована: Апрель 24, 2023
Adsorption is a widely used chemical engineering unit operation for the separation and purification of fluid streams. Typical uses adsorption include removal targeted pollutants like antibiotics, dyes, heavy metals, other small to large molecules from aqueous solutions or wastewater. To date several adsorbents that vary in terms their physicochemical properties costs have been tested efficacy remove these Irrespective type adsorbent, nature pollutant, experimental conditions, overall cost depends directly on contact time adsorbent materials. Thus, it essential minimize amount required. We carefully reviewed attempts made by researchers two parameters using theoretical kinetics isotherms. also clearly explained methods calculation procedures involved during optimization mass time. complement procedures, we detailed review isotherms are commonly model equilibrium data can be optimize mass.
Язык: Английский
Процитировано
90
Chemical Engineering Journal, Год журнала: 2023, Номер 470, С. 144094 - 144094
Опубликована: Июнь 16, 2023
Язык: Английский
Процитировано
61
Arabian Journal of Chemistry, Год журнала: 2023, Номер 16(8), С. 104900 - 104900
Опубликована: Апрель 12, 2023
The current study presents a unique and innovative approach to sustainable activated carbon (AC) synthesis using non-conventional agricultural wastes, leaves of sugar beet (LSB), via thermo-chemical activation process. This not only offers solution for LSB elimination, but also provides an eco-friendly alternative commercially available carbon. process was conducted at various ratios H3PO4 / (0.5:1, 1:1, 2:1, 3:1 w/w ratios) fixed temperature (550 °C/2h). amorphous nature, porous structure, BET surface area (SBET = 700.7 m2/g), chemistry nominated the synthesized AC 2:1 ratio as superior adsorbent material methyl orange, MO, methylene blue, MB, from standard solutions in batch system different experimental conditions. Kinetic investigations revealed that pseudo-second order equation explained sorption data well. In contrast, intra-particle diffusion limiting stage adsorption addressed dyes. Similarly, linear Langmuir described investigated dyes better than Freundlich one with maximum removal capacity (qmax) 185.2 140.8 mg/g MB orderly. confirms homogenous/monolayer nature adsorbed ions through isoenergetic active sites upon AC(2:1) surface. Furthermore, electrostatic attraction leading mechanism both dyes, substantial participations by hydrophobic hydrogen-bonding forces may be considered.
Язык: Английский
Процитировано
44
Water Research, Год журнала: 2022, Номер 219, С. 118584 - 118584
Опубликована: Май 10, 2022
Язык: Английский
Процитировано
51
The Science of The Total Environment, Год журнала: 2022, Номер 858, С. 159699 - 159699
Опубликована: Окт. 26, 2022
Reduced atmospheric acid deposition has given rise to recovery from acidification – defined as increasing pH, neutralization capacity (ANC), or alkalinity in surface waters. Strong evidence of been reported across North America and Europe, driving chemical responses. The primary responses identified this review were concentration changing character natural organic matter (NOM) towards predominantly hydrophobic nature. NOM also influenced trace metal cycling many browning waters increases Fe Al. Further, climate change other factors (e.g., land use) act concert with reductions contribute widespread will have a more pronounced effect stabilizes. observed water quality trends presented challenges for drinking treatment increased dosing, poor filter operations, formation disinfection by-products) facilities may be under designed result. This comprehensive key research areas addressed, including 1) need monitoring programs larger timescales; consistency measurements) assess impacts on dynamics, 2) better understanding vulnerabilities the transition robust technologies solutions that can adapt drivers quality.
Язык: Английский
Процитировано
41
Environmental Research, Год журнала: 2023, Номер 226, С. 115633 - 115633
Опубликована: Март 16, 2023
Язык: Английский
Процитировано
39
Separation and Purification Technology, Год журнала: 2023, Номер 318, С. 123998 - 123998
Опубликована: Май 2, 2023
Язык: Английский
Процитировано
33
The Science of The Total Environment, Год журнала: 2023, Номер 880, С. 163343 - 163343
Опубликована: Апрель 6, 2023
Persistent, Mobile, and Toxic (PMT) very persistent mobile (vPvM) substances are a growing threat to water security safety. Many of these distinctively different from other more traditional contaminants in terms their charge, polarity, aromaticity. This results sorption affinities towards sorbents such as activated carbon. Additionally, an increasing awareness on the environmental impact carbon footprint technologies puts some energy-intensive practices treatment into question. Commonly used approaches may thus need be readjusted become fit for purpose remove challenging PMT vPvM substances, including example short chained per- polyfluoroalkyl (PFAS). We here critically review interactions that drive organic compounds related sorbent materials identify opportunities limitations tailoring removal. Other less materials, ion exchange resins, modified cyclodextrins, zeolites metal-organic frameworks then discussed potential alternative or complementary use scenarios. Sorbent regeneration evaluated potential, considering reusability, on-site regeneration, local production. In this context, we also discuss benefits coupling destructive separation technologies. Finally, sketch out possible future trends evolution removal water.
Язык: Английский
Процитировано
32
Journal of Water Process Engineering, Год журнала: 2023, Номер 52, С. 103518 - 103518
Опубликована: Фев. 1, 2023
Current knowledge on the physical, chemical and biological mechanisms involved in removal of biogenic taste odour (T&O) compounds by granular activated carbon (GAC BAC, respectively) contactors context drinking water treatment is critically reviewed. It determined that mechanisms, such as physiosorption micropore region, kinetic parameters influence characteristics adsorption onto fresh GAC have been well studied understood. However, it was identified development performance biofilm how operational conditions affect these processes needs further research. In this review, microorganisms responsible for degradation were highlighted sorted. Pore surface diffusion model effective at modelling biofiltration process. Future studies should also focus T&O other than geosmin 2-methylisoborneol (MIB) isolation characterisation capable biodegrading active BAC contactors, identification biodegradation pathways by-products large scale systems.
Язык: Английский
Процитировано
24
Journal of Cleaner Production, Год журнала: 2023, Номер 417, С. 137932 - 137932
Опубликована: Июль 3, 2023
Язык: Английский
Процитировано
23