Abstract
The investigation represents the study of the possibility of using a new adsorbent, i.e. a natural waste material (short cotton fibers from weaving mill), after physical and chemical modification, in the processes of removing disperse dye molecules from water. The aim of the study is to use the obtained results in practice, i.e. to find out a new system for discoloration of the liquid effluent from dyeing of synthetic textiles. The obtained adsorbent is in the form of a relatively finely dispersed material with heterogeneous porous particles, below 100 μm. The adsorbent infrared spectrum shows specific peaks corresponding to functional groups typical for this type of material. Disperse dye is adsorbed faster at the beginning, and slower later until the equilibrium concentration is established. After the transformation of cotton waste fibers, the yield of the new adsorbent is 45%. The amount of adsorbed dispersed dye per weight unit of adsorbent is increased with the adsorption process duration.
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