HPAN Textile Fiber Wastes for Removal of Dyes from Industrial Textile Effluents

Abstract

The paper presents our new results about efficiency of wastes based on hydrolyzed polyacrylonitrile textile fibers (HPAN) as sorbents in removal of some dyes from textile effluents. The effect of some experimental variables such as initial dye concentration, sorbent mass, pH, temperature, and contact time were investigated. The sorbent - dye sorption systems are described using Freundlich, Langmuir and Dubinin-Radushkevich isotherm models. The laboratory experimental results performed using the textile fibres wastes indicate the good removal of dyes from aqueous medium, suggesting that these textile solid wastes correspond to the actual tendency of using non-conventional sorbtive materials to reduce the overall cost of sorbent preparation.