Düzce Üniversitesi Bilim ve Teknoloji Dergisi (Jan 2023)
Decoloration and Detoxification of Astrazon Red FBL Solution Using Gamma Rays
Abstract
In this study, decoloration and detoxification of Astrazon Red FBL dye solutions using gamma rays have been examined at different environments (air, O2 saturated, 2.6 mM H2O2). In this context, the decoloration, mineralization, detoxification, pH, COD and BOD5 parameters were followed. Biodegradability ( 5 days of biological oxygen demand/ chemical oxygen demand -BOD5/COD-) ratio has been improved up on 2 kGy irradiation for all solutions. Optimum irradiation conditions were found to be 5 kGy pH 9 for air, 5 kGy pH 11 for O2 saturated, 7 kGy pH 11 for 2.6 mM H2O2 to provide mineralization and decoloration of Astrazon Red FBL solutions. Microtox bioluminescent test was conducted to measure the toxicity of Astrazon FBL solutions treated with high energetic rays. Toxicity reduction has been achieved at 5, 5 and 7 kGy in the range of 81.2, 86.7 and 56.3 % for air, O2 saturated and H2O2 solutions, respectively. As a result of study, it is found that Astrazon Red FBL dye could be treated by irradiation technology.
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