Color and COD Removal from Textile Effluent by Advanced Oxidation Processes (ozonation)
DOI:
https://doi.org/10.31185/wjes.Vol14.Iss2.694Keywords:
AOPS, texitle, effluent, COD, color, turbidity, and wastewater treatment.Abstract
Using an ozone reactor, this work looks at how well ozonation removes turbidity, COD, and methylene blue dyes from polluted water. The main goals were to assess ozonation's efficacy in degrading methylene blue dyes, lowering COD, and clearing turbidity, and to find the ideal reaction time for the best removal efficiency.
The findings showed that ozonation greatly enhanced the removal of turbidity, color, and COD over time. Ozonation 1 (10%) had the least efficiency in terms of COD removal, with about 30% removal at 180 minutes; the others, Ozonation 2 (20%) and Ozonation 5 (50%) had 55% and 60% removals, respectively. Ozonation 1 removed 50% of the turbidity; ozonation 2 and ozonation 5 showed the greatest efficiency with 75% and 78% elimination at 180 minutes, respectively. Ozonation 1 removed around 50% of the color; Ozonation 2 and Ozonation 5 removed 70% at the same reaction time; thus, the color removal also rose markedly. After 180 minutes, Ozonation 4 (40%) exhibited moderate effectiveness with COD, turbidity, and color removal reaching 70%, 70%, and 75%, respectively. This work shows that higher removal efficiencies for COD, color, and turbidity are significantly influenced by prolonged reaction periods. Particularly for Ozonation 2 and Ozonation 5, the custom-built ozone reactor was successful in optimizing ozone settings, which produced the best overall outcomes in eliminating methylene blue dyes, COD, turbidity, and color.
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