Removal of chromium(VI) from wastewater using Sorel's cement |
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| Authors: | Saad S M Hassan Nasser S Awwad Awaad H A Aboterika |
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| Institution: | (1) Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt;(2) Analytical Chemistry Department, Hot Labs Center, Atomic Energy Authority, Egypt;(3) Department of Chemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, Egypt |
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| Abstract: | Summary Synthetic Sorel's cement 3Mg(OH)2 . MgCl2 . 8H2O], is used as a new adsorbent material for removal of chromium(VI) ion from wastewater effluents. Parameters including contact
time, adsorbent dosage and pH are examined and optimized. The equilibrium data are fitted very well to the Langmuir and Freundlich
isotherms rather than linear. The adsorption isotherm indicates that the monolayer coverage is 21.4 mg Cr(VI) ion per g of
Sorel's cement. The adsorbent is considered as a better replacement technology for removal of Cr(VI) ion from aqueous solutions
due to its low cost, good efficiency, fast kinetics, and simple preparation. It offers remarkable efficiency for Cr(VI) removal
from wastewater compared with many other natural and synthetic adsorbents. |
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