Abstract

Ishtiyak Qadir and R. C. Chhipa

DOI : http://dx.doi.org/10.13005/ojc/330460

Textile effluents are one of the main sources of severe pollution problems worldwide due to vast diversity of chemicals reagents used by textile industries for various production steps. The discharge of dye containing effluents into fresh water bodies is undesirable because of the color. In the present work, activated carbon was prepared from the leaves of Azdirachta indica (Neem) by nine different carbonization processes. The effect of pH on the adsorption of four classes of dyes namely acid dye (Acid blue 49), basic dye (Basic red 29), reactive dye (Reactive orange 4) & direct dye (Direct blue 53) was studied by activated carbon (NAC₂), prepared from Neem leaves by H₃PO₄ impregnation method.  The effect of pH on the adsorption of four classes of dyes is discussed and the adsorption properties of activated carbon are evaluated. Effluent samples from textile dyeing effluents were also treated using the selected activated carbon. From the present studies, it has been evaluated that the activated carbon prepared from Azadiarchta indica (Neem leaves) could be used an efficient low-cost alternative to the commercial activated carbon.

Effluents; BOD; COD; Activated Carbon; Acid dye; Basic dye; Reactive dye and Direct Dye

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