Title :
Study on factors of effecting adsorption of Cr6+ in wastewater by bentonite
Author :
Yang, Cuina ; Ma, Yun ; Ding, Shuli
Author_Institution :
Dept. of Civil Eng., Xinxiang Univ., Xinxiang, China
Abstract :
The removal of chromium cations from artificial wastewater and actual effluent by Ca-bentonite and Na-exchanged bentonite was studied. The experimental results showed that the equilibrium time of adsorbing chromium cations were 1h. The quantity of adsorption decreases with the increase of initial concentration of chromium cations, pH and adsorption temperature. Na-exchanged bentonite sorbed higher amounts of Cr6+ than the natural bentonite, the removal rate of Cr6+ reached to 95%.
Keywords :
adsorption; chromium; effluents; positive ions; wastewater treatment; Cr; adsorption temperature; artificial wastewater; chromium cations adsorption; chromium cations removal; effluent; natural bentonite; Chromium; Effluents; Instruments; Minerals; Wastewater; actual effluent; bentonite; chromium cations; heavy metals; sorption;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201832