Modification of polypropylene non-woven fiber for the removal of ionic compounds from synthetic waste water: optimization by response surface methodology
Paper ID : 1227-MST2015-FULL
Authors:
1Elaheh Kowsari, 2Majid Abdouss, 2Ahmad Mousavi Shoushteri
1research vice president
2faculty member
Abstract:
In this study, nano and micro membranes were prepared in three stages; and afterwards the adsorption capacity was investigated with different anion. In the first part of this paper, non-woven polypropylene was surface activated by plasma treatment followed by grafting with acrylic acid, after that it was modified by a reaction with diethylenetriamine. Additionally, response surface methodology (RSM) was used to model and optimize the grafting and amination reactions. The influence of monomer concentration, plasma treatment time, temperature, the duration of the reaction, and the effect of a catalyst were examined as parameters of optimization. Moreover, adsorption efficiency for nitrate ions, in both the nano and micro membranes, was compared. It was shown that the adsorption ability of the nano membrane was about three times higher than that of the micro membrane. In the second part, in order to compare different anion adsorption, anionic pollution remediation was assessed through the removal of nitrate, phosphate, and sulfate. The grafting and amination reactions were confirmed by IR, SEM, and TGA.
Keywords:
plasma, anion, non-woven poly propylene, membrane
Status : Paper Accepted (Oral Presentation)