A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters.

Bacterial Decolorization and Degradation of Azo Dyes

Removal of direct dyes by coagulation: the performance of preformed polymeric aluminum species.

Virtually all the known physicochemical and biological techniques have been explored for treatment of extremely recalcitrant dye wastewater; none, however, has emerged as a panacea. A single universally applicable end-of-pipe solution appears to be unrealistic, and combination of appropriate techniques is deemed imperative to devise technically and economically feasible options. An in-depth evaluation of wide range of potential hybrid technologies delineated in literature along with plausible analyses of available cost information has been furnished. In addition to underscoring the indispensability of hybrid technologies, this article also endorses the inclusion of energy and water reuse plan within the treatment scheme, and accordingly proposes a conceptual hybrid dye wastewater treatment system.

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Aleksandra Vinder

Papers

Efficiency of the coagulation/flocculation method for the treatment of dyebath effluents