Color removal from textile industry wastewater by polymer resin adsorption

The effectiveness of color removal from textile wastewaters by adsorption on polyacrylamide was investigated varying pH value, amount of adsorbent and agitation rate, the parameters important for the removal activity of the polymer resin. The adsorption followed the Langmuir isotherm. Optimum color removal efficiency (68%) was achieved at pH 3 using 0.4 g polyacrylamide agitated at 150 rpm, respectively. Simultaneously, color removal efficiency increased when the settling time was between 4 to 6 hours. These results indicate that polyacrylamide is one of the most effective polymer resins to remove colors from textile wastewaters