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Adsorption Decolorization Technique of Textile/Leather Dye Containing Effluents

Marian Deaconu, Raluca Senin, Rusăndica Stoica, Anca Athanasiu, Marian Crudu, Loti Oproiu, Mircea Ruseand Catalin Filipescu

The purpose of this study was to evaluate the potential of ion exchange resins to remove the color from industrial wastewaters. In textile-leather dyeing, paper, colour, printing, cosmetics, pharmaceutical and other industries the synthetic dyes are extensively used. Adsorption techniques are much used to remove certain classes of pollutants from waters, especially from industrial colored wastewaters. In recent years, functional polymers have been increasingly tested as a potentially alternative to traditional adsorbents due to their vast surface area, perfect mechanical rigidity, adjustable surface chemistry and feasible regeneration under mild conditions. The strongly basic anion exchanger resins were used as an adsorbent for the acid, direct and reactive dyes adsorption from the coloured wastewaters.