Assessment of iron oxide and local cement clay as potential fluoride adsorbents

• Autorzy: Atasoy A. D. , Yesilnacar M. I.

Identyfikatory

DOI

10.5277/epe170209

• Języki publikacji: EN

Abstrakty

EN

Health problem from fluoride contaminated water is more acute in rural and small urban communities. Defluoridation of low contaminated water by inexpensive adsorbents is a substantial practice worldwide. In the study, low-cost sorbents have been investigated as replacements for current costly methods of removing the excess fluoride from water below the certain concentration. The adsorption capacity of iron oxide and cement clay in fluoride removal was investigated by the batch method. The equilibrium time was attained in 3 h and 2 h for iron oxide and cement clay, respectively. Optimum adsorbent dosage was found to be 5 g/dm³. Initial fluoride concentrations for the adsorption studies were 1.24 and 12.2 mg/dm³. Fluoride adsorption isotherm fitted well the Freundlich isotherm with the coefficient of determination >0.99 for both adsorbents. The fluoride adsorption capacity of iron oxide was found higher than that of cement clay due to the high surface area and charge of iron oxide. How-ever both substances can reduce F– contamination below the acceptable limits of 1.5 mg/dm³ for less contaminated water.

Słowa kluczowe

EN

drinking water purification; membrane process; fluorine

PL

fluor; procesy membranowe; oczyszczanie wody pitnej

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2017
• Tom: Vol. 43, nr 2
• Strony: 109--118
• Opis fizyczny: Bibliogr. 25 poz., tab., rys.

Twórcy

autor

Atasoy A. D.

• Faculty of Engineering, Department of Environmental Engineering, Harran University, Osmanbey Campuse 63190, Şanlıurfa, Turkey

autor

Yesilnacar M. I.

• Faculty of Engineering, Department of Environmental Engineering, Harran University, Osmanbey Campuse 63190, Şanlıurfa, Turkey

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