Phenols cause damage to aquatic life when the concentration in the water system exceeds 1mgL -1 . Due to the growing worldwide demand for textile products, these industries consume a high volume of water . Phenols and their derivatives are used extensively in dyes such as Azo dyes that holds around 70% of market share . Many of these dyes are known to have toxic effects on human health and environment, concerns regarding their toxicity and carcinogenicity have led to studies on toxicity of these dyes . Due to dyes such as Dispersive blue 3 which have low biodegradability, have toxicity and complex chemical structure, reduction of these effluents from environment is of great environmental concern . Industrial activities have adversely affected the ecology of water system. Most of the water bodies near industrial zone has been contaminated by the effluents released by textile industries . In a study Castro et al. , evaluated the toxicity of pre and post-treatment of textile effluents, on four different organisms, namely A.fischer, Raphidocelis subcapitata, Daphnia magna and Lemnar minor were used. Each of these organisms represented trophic levels. This study reviled that pre-treatment effluents have more toxic effects on organism as compared to when it was treated. However, treated effluents still exhibited toxicity towards D.magna. Due to high reactivity and nonbiodegradability, phenolic compounds in water system have the tendency to react with other components of aquatic environment. Certain bacteria are known to degrade non-ionic surfactants into more toxic and harmful phenolic derivatives such as alkyl phenolic compounds. For example, bacteria can degrade nonylphenol polyethoxylated which may result in nonylphenol . Tetrachlorocatechol which is formed by bacteria mediated degradation of pentachlorophenol and chlorocatechol is identified to be the result of microbial degradation .