Title: STUDY ON THE EFFECT OF ADSORBING FLUORINE ANION BY LAYERED DOUBLE HYDROXIDES
Abstract: The adsorption of fluorine in water by Calcined Layered Double Hydroxides was studied. The effects of calcined temperature,adsorption time,sorbent dosage,pH value on adsorption were investigated. The experimental results showed that the calcined product had an excellent performance in adsorbing fluorine, at a wide pH (5.5~9.5) value range, it decreased the concentration of F- from15mg/L to under 1mg/L with 4g/L of Calcined Layered Double Hydroxides. The adsorption happened in 60min and was in conformity with the Langmuir isotherm type equation, the adsorption capacity was 22.64mg/g. The adsorption capacity reduced to 10.37mg/g when they were regenerated by thermal decomposition method.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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