Title: EFFECT OF SOLIDS CONCENTRATION ON THE CR(VI)ADSORPTION BY ZEOLITE LOAD HYDROXY IRON OXIDE
Abstract: The adsorption and desorption of Cr(VI) using zeolite load hydroxy iron oxide as adsorbent was conducted in laboratory.We explored the adsorption mechanism and solid concentration effect of Cr(VI) onto zeolite load hydroxy iron oxide.The results indicated that when the dosage of adsorbent increased from 0.02g to 0.2g, the adsorption of Cr(VI) decreased from27999.493μg/g to 8930.610μg/g. The adsorption of Cr(VI) by adsorbent exsited in the effect of solids concentration obviously. Cr(VI) adsosrption hysteresis angle deceased significantly with the increase of solid concentration and reversibility of adsorption reaction increased. The Langmuir and Freundlich isotherm equations were used to describe Cr(VI) adsorption and it could be found that the adsorption of Cr(VI) was appropriate for Freundlich isotherm equation.It showed that the adsorption reaction was given priority to monolayer adsorption.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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