Innovative Method for Decolouration of Textile Industry Effluent

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Abstract

Textile industries arc major source of effluents due to their operations. Released colored organic compounds in effluent contaminate the water and axe source of non-aesthetic pollution and eutrophi-cation. In the present paper an innovative method is reported for the decolouration of dyes in textile effluent using photoreduc lion in presence of solar radiation. Commercial samples of different azo and cremazole textile dyescommonly used in textile industries of Sanaganer region in Rajasthan were used for method development. Photocatalytic activity of titanium dioxide, zinc oxide and manganese oxide was studied In presence of sunlight on commercial dye samples namely Violet, Congo Red, Blue Si and Orange 3R. The results show that decoimation efficiency of 110, is many fold higher than ZnO and MnO. The process shows a significance enhancement when it is carried out at optimum concentration of reducing agent and appropriate time for solar irradiation. 89% Colour removal from effluent was reached at 96 His operating time.