Modified Synthetic Fibers a Treatment for Heavy Metal Removal in Aqueous

摘要

In this study was evaluated a performance of chemically modified synthesis fiber for the heavy metal treatment. Four fibers sampled from textile industry were evaluated in this study including of polyester, nylon, rayon and polyester/cotton. The graft copolymerization is the first step of modification process using acrylic acid with and without a surfactant. Then, amino chelating group was prepared via soaked in ethylenediamine solution. The grafting percentage was found in about 30-54% and 12-138% respectively without and with a surfactant conditions, respectively.Since, 3 M of acrylic acid 0.1 g of BPO neither, a polyester/cotton fibers nor 4 M acrylic acid. Overall results showed that the amino chelating fibers had higher lead and hexavalent chromium removal efficiencies than non modified fibers. These indicated the chemically modified fibers that functionalized with acrylic acid and ethylenediamine had capable to improve to an adsorption capacity. The modified nylon fibers had the highest adsorption capacity within 48 mg/g for Pb~(2+) and Cr~(6+).