Innovative Use of Wood Ash for Fluoride Removal from Water: Comprehensive Experiments and Mechanism Insight DOI Creative Commons

Jae-In Lee,

Jin-Kyu Kang, Sanghyun Jeong

и другие.

Applied Sciences, Год журнала: 2024, Номер 15(1), С. 245 - 245

Опубликована: Дек. 30, 2024

This study investigates the potential of wood ash (WA), a by-product wood-based energy production, as an eco-friendly alternative for removing fluoride from water. Kinetic analysis revealed that WA enables rapid removal, reaching equilibrium within 1 h (112.09 ± 3.9 mg/g). Equilibrium demonstrated exhibits Langmuir maximum capacity 157.34 mg/g, indicating high adsorption ranks top 10% reported adsorbents (34th out 328). According to thermodynamic analysis, process appears be both endothermic and spontaneous at elevated temperatures. pH dependence studies showed while peaked under acidic conditions, it remained relatively stable (116.01 0.8 mg/g) over wide range levels (5 11). An optimal dosage 6.67 g/L achieved greater than 98% removal rate. Coexisting anions affected WA, with order influence being PO43− > CO32− >> SO42− NO3− ≈ Cl−. Mechanistic analyses confirmed surface precipitation CaF2 primary mechanism responsible removal. With Ca content 66 wt.%, facilitates enhanced Overall, this highlights efficacy sustainable adsorbent water, contributing valorization in wastewater treatment applications.

Язык: Английский

Nickel(II) and cadmium(II) uptake by carbon iron composite derived from Pelargonium graveolens DOI Creative Commons
Patience Mapule Thabede,

N.D. Shooto

Case Studies in Chemical and Environmental Engineering, Год журнала: 2025, Номер unknown, С. 101227 - 101227

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Effectiveness of Musa Balbisiana bract toward chromium removal from industrial tannery effluent: optimization, kinetics, isotherms, regeneration, and cost estimation DOI
Divya Baskaran,

Becky Miriyam,

R. Palani

и другие.

Biochemical Engineering Journal, Год журнала: 2024, Номер 213, С. 109565 - 109565

Опубликована: Ноя. 12, 2024

Язык: Английский

Процитировано

2
Innovative Use of Wood Ash for Fluoride Removal from Water: Comprehensive Experiments and Mechanism Insight DOI Creative Commons

Jae-In Lee,

Jin-Kyu Kang, Sanghyun Jeong

и другие.

Applied Sciences, Год журнала: 2024, Номер 15(1), С. 245 - 245

Опубликована: Дек. 30, 2024

This study investigates the potential of wood ash (WA), a by-product wood-based energy production, as an eco-friendly alternative for removing fluoride from water. Kinetic analysis revealed that WA enables rapid removal, reaching equilibrium within 1 h (112.09 ± 3.9 mg/g). Equilibrium demonstrated exhibits Langmuir maximum capacity 157.34 mg/g, indicating high adsorption ranks top 10% reported adsorbents (34th out 328). According to thermodynamic analysis, process appears be both endothermic and spontaneous at elevated temperatures. pH dependence studies showed while peaked under acidic conditions, it remained relatively stable (116.01 0.8 mg/g) over wide range levels (5 11). An optimal dosage 6.67 g/L achieved greater than 98% removal rate. Coexisting anions affected WA, with order influence being PO43− > CO32− >> SO42− NO3− ≈ Cl−. Mechanistic analyses confirmed surface precipitation CaF2 primary mechanism responsible removal. With Ca content 66 wt.%, facilitates enhanced Overall, this highlights efficacy sustainable adsorbent water, contributing valorization in wastewater treatment applications.

Язык: Английский

Процитировано

0