Chemistry and Materials Research
Removal of Reactive Yellow 135 from Wastewaterof Textile Industry onto Chitosan Extracted by Hydrothermo-Chemical Method.
Abstract
The capabilities of chitosan for removing anionic dyes as reactive yellow 135 from wastewater of textile industry were examined. The chitosan was extracted from shrimp co-products "PandalusBorrealis" by the hydrothermo-chimical method in two steps. The bio-adsorbent obtained was characterized by infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDXA). Operational parameters studied were pH, contact time, adsorbate and adsorbent concentrations with a removal rate percentage of 98% and a maximum adsorption capacity of 69.244 mg/g at pH 1.9. Adsorption kinetics for the removal of reactive yellow 135 onto chitosan followed pseudo-second-order kinetics model. The examination of the isotherm data showed that the Freudlich isotherm model is the best fitting model.
Keywords : Chitosan, Reactive Yellow 135 (RY135), Adsorption, Wastewater treatment, Industrial dyes, Textile industry.
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ISSN (Paper)2224-3224 ISSN (Online)2225-0956
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