Biodegradation of Different Concentration of dye (Congo red dye) by using Green and Blue Green Algae

Abstract

Releasing of textile dye effluents into general water bodies is a major environmental and health<br />problem. Color removal, in particular, has recently become of major scientific interest, as indicated by the<br />multitude of related research reports. During the past two decades, several physico-chemical decolorization<br />techniques have been reported, few, however, have been accepted by the textile industries.<br />Their lack of implementation has been largely due to high cost, low efficiency and inapplicability to a wide<br />variety of dyes. The ability of microorganisms to carry out dye decolorization has received much attention.<br />Green algae and blue green algae are considered as an important source for decolorizing dye and textile effluent.<br />The dye Congo red and textile dye effluent is chosen for this investigation and the green algae Haematococcus<br />sp., Chlorella sp., Chlorella vulgaris, Scenedesmus obliquuss, S. officinalis, and S. quadricauda and blue green<br />algae Arthospira maxima was used for the decolorization process. Chlorophyll, protein content of this<br />organism was tested before and after the treatment. Haematococcus sp shown the maximum degradation<br />among all the seven microalgae was found at 10ppm which was 98%, which decolorize the textile effluent<br />efficiently in short period of time.