Defluoridation of water using Stevia-based adsorbent DOI
Anirudh Srivastava, S. C. Tiwari,

Uttam Thapa

et al.

Journal of Dispersion Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Dec. 12, 2024

Fluoride contamination in groundwater negatively impacts human health, prompting global research on de-fluoridation techniques. The current study explores the potential of activated carbon from Stevia plant leaves, a method based active carbons matter, which is expected to gain more attention. Surface morphological and physiochemical studies were carried out characterize Stevia-based (SAC) using FT-IR, XRD, SEM impact many factors, including adsorbent dose, agitation time, pH, electrolytes, fluoride removal was investigated. Using Freundlich (F-I), Langmuir (L-I), Temkin (T-I), Dubinin-Radushkevich (D-R-I) isotherms, adsorption process examined. With SAC at pH levels 2 7.4, percentage [F̅] rose 75.4 93.2, with increases 7 11, it declined 89.5 83.8%. isotherms F-I, L-I, T-I, D-R-I have correlation coefficient values 0.974, 0.989, 0.955, 0.947, respectively. For SAC, mean free energy (E) T-I heat sorption (B) are 10.03 4.165 J mol−1, kinetic behavior onto composite could be explained by pseudo-second-order model good when compared pseudo-first-order model. It demonstrated that useful for de-fluoridating water. physisorption nature supported B E; both having less than 50 kJ mol−1. system would effectively de-fluoridated method.

Language: Английский

Is dredging an effective ecological restoration method to improve water quality in freshwater ecosystems? DOI
Hongyong Xiang, Xiang Li, Rui Xiao

et al.

Ecological Engineering, Journal Year: 2024, Volume and Issue: 209, P. 107425 - 107425

Published: Oct. 10, 2024

Language: Английский

Citations

0
Defluoridation of water using Stevia-based adsorbent DOI
Anirudh Srivastava, S. C. Tiwari,

Uttam Thapa

et al.

Journal of Dispersion Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 11

Published: Dec. 12, 2024

Fluoride contamination in groundwater negatively impacts human health, prompting global research on de-fluoridation techniques. The current study explores the potential of activated carbon from Stevia plant leaves, a method based active carbons matter, which is expected to gain more attention. Surface morphological and physiochemical studies were carried out characterize Stevia-based (SAC) using FT-IR, XRD, SEM impact many factors, including adsorbent dose, agitation time, pH, electrolytes, fluoride removal was investigated. Using Freundlich (F-I), Langmuir (L-I), Temkin (T-I), Dubinin-Radushkevich (D-R-I) isotherms, adsorption process examined. With SAC at pH levels 2 7.4, percentage [F̅] rose 75.4 93.2, with increases 7 11, it declined 89.5 83.8%. isotherms F-I, L-I, T-I, D-R-I have correlation coefficient values 0.974, 0.989, 0.955, 0.947, respectively. For SAC, mean free energy (E) T-I heat sorption (B) are 10.03 4.165 J mol−1, kinetic behavior onto composite could be explained by pseudo-second-order model good when compared pseudo-first-order model. It demonstrated that useful for de-fluoridating water. physisorption nature supported B E; both having less than 50 kJ mol−1. system would effectively de-fluoridated method.

Language: Английский

Citations

0