Modifikovana otpadna prediva pamuka i pamuk/poliestra kao adsorbenti za uklanjanje organskih boja iz otpadnih voda

Abstract

U cilju dobijanja adsorbenata za uklanjanje organskih boja iz otpadnih voda, u okviru ovog rada su primenjene dve vrste industrijskih otpadnih materijala. Otpadna prediva pamuka i mešavine pamuk/poliestar modifikovana su korišćenjem smeše natrijum karboksimetil celuloze i letećeg pepela. Karakterizacija polaznih i modifikovanih prediva izvršena je skenirajućom elektronskom mikroskopijom i infracrvenom spektroskopijom sa Furijeovom transformacijom, dok je adsorpcija metilensko plavog i metil oranža primenjena za ispitivanje efikasnosti uklanjanja. Svi ispitivani uzorci pokazuju bolju efikasnost u uklanjanju metilensko plavog, a primenjena modifikacija povećava adsorpcionu efikasnost skoro dva puta. Pokazano je da se kombinovanjem dve vrste otpada, pamučnog prediva i letećeg pepela, dobijaju visoko efikasni adsorbenti za uklanjanje metilensko plavog iz vode.

In order to obtain adsorbents for the removal of organic dyes from wastewater, two types of industrial waste materials were used in this study. Waste cotton and cotton/polyester yarns were modified using a mixture of sodium carboxymethyl cellulose and fly ash. Characterization of the unmodified and modified yarns was performed by scanning electron microscopy and infrared spectroscopy with Fourier transform, while the adsorption of methylene blue and methyl orange was used to examine the removal efficiency. All tested samples show better efficiency in removing methylene blue, and applied modification increase the adsorption efficiency almost twice. It has been shown that by combining waste cotton yarn and fly ash, highly efficient adsorbents for removal of methylene blue from water can be obtained.