Removal and Recovery of the Hazardous Azo Dye Acid Orange 7 through Adsorption over Waste Materials:  Bottom Ash and De-Oiled Soya

Kumar Gupta, Vinod; Mittal, Alok; Gajbe, Vibha; Mittal, Jyoti

doi:10.1021/ie051111f

Public

Removal and Recovery of the Hazardous Azo Dye Acid Orange 7 through Adsorption over Waste Materials: Bottom Ash and De-Oiled Soya

Published in Industrial & Engineering Chemistry Research • Jan 12, 2006

Authors:

Vinod Kumar Gupta

Alok Mittal

Vibha Gajbe

Abstract

An azo dye, Acid Orange 7 [ p -(2-hydroxy-1 naphthylazo)benzene sulfonic acid] was removed by adsorption over two waste materials, namely, bottom ash, a power plant waste, and de-oiled soya, byproduct obtained during the processing of soybean in soya oil extraction mills. Both waste materials showed...

Subject

Adsorption

Chemistry

Freundlich equation

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