The major concern of the present research is degradation of
hazardous and stable Indigo dye used in industrial denim dying process. For
this purpose, a heterogeneous photocatalysis process was carried out to treat
aqueous solution of Indigo dye using pure titanium dioxide (TiO2) in
a batch reactor system under ultraviolet A (UVA) light for 210 min. In the
study, individual and synergistic effects of factors such as TiO2
dosage, pH, and initial dye concentration were scrutinized. Moreover, Taguchi
statistical method was performed to optimize influential parameters. The
results obtained from the study that TiO2 concentration had the most
effective factor on the Indigo dye degradation. The optimal conditions for dye
removal were A (pH) at level 2 (4), B (initial dye concentration) at level 1
(10 mg/L) and C (TiO2 concentration) at level 4 (1.5 g/L). The
results presented that the theoretically predicted value for degradation
efficiency (100%) was confirmed by the experimental value (100%).
Primary Language | English |
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Subjects | Environmental Engineering |
Journal Section | Research Articles |
Authors | |
Publication Date | June 30, 2019 |
Submission Date | September 6, 2018 |
Acceptance Date | February 8, 2019 |
Published in Issue | Year 2019 |