Study on Adsorption and Remove of Fluorine from Water by Modified Zeolite

Ying Kang; Jian Liu; Shao Long Su

doi:10.4028/www.scientific.net/AMR.726-731.2295

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Study on Adsorption and Remove of Fluorine from...

Study on Adsorption and Remove of Fluorine from Water by Modified Zeolite

Abstract:

A modified Zeolite to be prepared and its performance of removing fluorine from containing fluoride water was reported. Firstly, using zeolite 4A as skeleton, by means of carrying to adsorb Fe³^﹢from containing ferri ions solution, which the zeolite can be modified and the coordination metal center are formed. Based on mechanism of ligand exchange, a new material of removing deeply fluorine from water was got. Secondly , the results show that this modified zeolite has favourable adsorbing capacity for fluorine from water, when fluorine concentration is about 4～25 mg.L^-1, above 99.0% of fluorine can be removed from water. The static saturation adsorbing capacity is 20.1 mg.g^-1, by following conditions:the pH of water range of 5-8; solid-to-liquid ratio of 1:50 and room temperature.Common-ions in water do not make affect to adsorbing fluorine by the zeolite and high selection in process of removing fluorine has been demonstrated.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

2295-2299

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.2295

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Online since:

August 2013

Authors:

Ying Kang*, Jian Liu, Shao Long Su

Keywords:

Fluorine, Ligand Exchang, Removing Fluorine, Separation, Zeolite

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