Abstract
Synthetic dyes, particularly reactive and acid dyes, are commonly used in the textile industry because of their advantages as excellent color fastness and brightness. Also, surfactants are used for an increment of coloring success in the textile industry. One of the major problems concerning textile wastewater is the treatment of the effluents containing both dyes and surfactants. Biological treatment systems are recommended as useful, economic and eco-friendly methods for treatment of industrial wastewater. The purpose of this study was to investigate the binary removal of a textile dye and a surfactant by growing Aspergillus versicolor culture in molasses medium. The effect of dye and surfactant concentration on the removal of dye and surfactant was determined. This study resulted that 100% of the surfactant and dye molecules removed together with the formation of a dye-surfactant complex by fungus. It is concluded that binary removal systems are very efficient for industrial wastewater treatment.
Highlights
The augmentation of industrial activities are important for the economic development of countries, but they cause environmental and health problems due to their toxic effluents
The effect of surfactant concentration on the optical density of Acid Blue 83 (AB 83) was determined at different surfactant concentrations as 0.1, 0.5, 1 and 2 mM
AB 83 is an anionic dye molecule and dodecyltrimethylammonium bromide (DTAB) is a cationic surfactant molecule, so it is expected that the electrochemical interactions occurred between dye and surfactant molecules
Summary
The augmentation of industrial activities are important for the economic development of countries, but they cause environmental and health problems due to their toxic effluents. Dyes and surfactants are found together as toxic pollutants in the content of the industrial wastewater. Reactive and acid dyes are extensively used in the coloring of textile products. Reactive Blue 19 (RB 19) has been. 3 pp.615620 widely used as a model compound for anthraquinone-type dye in decolorization studies. It is the raw material in the production of polymeric dyes and, as a derivative of the two ringed PAH, represents the main component of toxic and recalcitrant organic pollutants (Hadibarata et al, 2012). Acid Blue 83 (AB 83) is commonly used in the textile industry, but recent studies emphasized the carcinogenic and mutagenic properties of this dye (Karthick et al, 2018)
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