Color removal in textile industry waste water by polymer resin adsorption

COLOR REMOVAL IN TEX FILE INDUSTRY WASTEWATER BY POLYMER RESIN ADSORPTION SUMMARY Keywords: Textile industry, adsorption, polymer, color removal Water pollution originated from industries is a big problem in Turkey especially area of textile industry. The total volume of wastewater originated from textile dyeing and finishing processes in Turkey is arround 150 million tons/year. Textile firms studied at various regions pollute the important and usable water sources. Firms have started using physical, chemical, biological and different treatment systems for rehabilitation of textile wastewaters Dyestuff is important pollution source in textile industry wastewater. Degradation of dyestuff can be accomplished only by chemical and/or biological oxidation. In this study, the removal of color from textile industry wastewater was investigated using poliakrilamid for adsorption method. By changing the amount of adsorbent, mixing speed and wastewater pH, color removal was optimized. The maximum adsorption capacity for color removal was obtained, when the amount of adsorbent was 0,4 g, mixing speed was 1 50 rpm and at pH 3. At the same time, color removal efficiency increased when the precipitating time was 2-4 hours. As a result of this study, % 68 of color was removed at this optimum conditions. Adsorption rate constant (k) and pore difusion rate constant (k ) was calculated with the results according to Lagergren and Weber-Morris equations. Suitable adsorption isotherm for color removal with polymer adsorption was obtained by langmiur equation. IX