Loading...

Evaluation of the Effect of the Presence of Activated Carbon Powder on the Microbial Removal of Azomethyl Red Dye by Klebsiella Bacteria

Rajabi, Masoud | 2024

0 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56855 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Yaghmaei, Soheila; Bagheri Lotfabad, Tayebeh
  7. Abstract:
  8. Synthetic azo dyes are one of the most common environmental pollutants in wastewater due to their many uses in various industries such as textile, printing, food, cosmetics, etc. In this project, the bacterial removal method is used to remove azo methyl red dye, and according to the functional groups on the surface of activated carbon, its effect on the efficiency and rate of the microbial removal process of azo methyl red dye is investigated. For this purpose, dye removal tests for each dye concentration (0.1 to 6 mM) in three separate series, as (1) dye removal in the presence of bacteria, (2) dye removal in the presence of activated carbon, and (3) dye removal was investigated in the presence of bacteria and activated carbon. In the experiments conducted in the presence of bacteria, 100% of the color was removed from the medium in all concentrations after 24 hours. The results showed that in the tests where only activated carbon was used, maximum 90% of the color was removed from the concentration of 6 to 3 mM within 24 hours, which indicates the completion of the absorption capacity of activated carbon up to this concentration. But in the initial concentrations of less than 2 mM dye, 100% of the methyl red dye was completely decolorized in the same period of time in all three test sets. Also, in the presence of activated carbon and bacteria, the color removal was done quickly in all concentrations, this indicated that the presence of activated carbon was the reason for increasing the speed of dye removal by bacteria. The results of thin layer chromatography analysis showed that bacteria, in the presence and absence of activated carbon, are able to decompose methyl red dye into its constituent aromatic amines
  9. Keywords:
  10. Activated Carbon ; Industrial Wastewaters ; Klebsiella Bacteria ; Azo Methyl Red ; Dye Removal ; Environmental Pollutant

 Digital Object List

 Bookmark

No TOC