Removal of phosphate from aqueous solutions by iron nano-particle resin Lewatit (FO36) |
| |
Authors: | Lida Rafati Ramin Nabizadeh Amir Hossein Mahvi Mohamad Hadi Dehghani |
| |
Affiliation: | 1.Department of Environmental Health Engineering, School of Public Health and Institute for Environmental Research,Tehran University of Medical Sciences,Tehran,Iran |
| |
Abstract: | Lewatit FO36 resin was covered with Fe (III) nano-particles, and it was used as a new way to eliminate phosphate. Column experiments
were carried out in 11 stages in fixed bed columns with constant flow rate of 9 ml/min and the empty bed contact time (EBCT)
of 2.1 min. The adsorption capacity was calculated for different concentration of phosphate solutions. After resin was regenerated
by using NaOH and NaCl solutions, the adsorption capacity of resin was computed for 6mg/L of phosphate, typically. The adsorption
capacity of resin was checked again a typical concentration of phosphate. The adsorption capacity measurements of regenerated
resin show that the concentration of phosphate reached to 1.6mg/g after an 8.5% decrease when the initial concentration of
phosphate is 6 mg/L. Competition of anions with phosphate was analyzed using chloride, sulfate, bicarbonate and a combination
of these anions. Finally the effect of resin in phosphate removal was studied for a typical real sample, and the data was
analyzed using statistical software (SPSS 13). The statistical results indicated that Cl−, SO43−, HCO3− and combined competing anions did not have a strong influence on the phosphate removal efficiency. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|