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VOL. 9, ISSUE 1 (2025)
Advanced oxidation processes (AOPS) coupled with nanocatalysts for wastewater remediation in Jodhpur, Rajasthan: Optimization and kinetic modeling
Authors
Shalini Bhatnagar, Arun Sharma
Abstract
Wastewater remediation is a critical
environmental challenge, particularly in arid regions like Jodhpur, Rajasthan,
in which industrial and domestic effluents heavily impact on water quality.
Advanced Oxidation Processes (AOPs), particularly Fenton and photo-Fenton
processes enhanced with titanium dioxide (TiO₂), were employed to optimize the
treatment of wastewater. COD and TOC were analyzed to evaluate treatment
performance. Results showed that solar TiO₂ photocatalysis achieved COD and TOC
removal efficiencies of 45.5% and 50.1%, respectively, while the photo-Fenton
process demonstrated higher removal efficiencies of 51.2% for COD and 55.3% for
TOC. The study highlighted the superior performance of photo-assisted processes
compared to dark mechanisms, particularly for TiO₂-based catalysis, due to the
enhanced generation of reactive hydroxyl radicals under light irradiation.
Furthermore, acidic conditions in the pH range of 3 to 5.5 were found to
significantly improve pollutant degradation for both photocatalysis and
photo-Fenton processes. Kinetic analysis confirmed that COD and TOC degradation
followed a pseudo-first-order model, indicating that the degradation rate is
dependent on pollutant concentration and decreases exponentially over time. Overall,
the photo-Fenton process emerged as the most effective treatment method,
showcasing its potential as a sustainable and efficient approach for addressing
complex wastewater challenges in regions like Jodhpur.
Pages:1-6
How to cite this article:
Shalini Bhatnagar, Arun Sharma "Advanced oxidation processes (AOPS) coupled with nanocatalysts for wastewater remediation in Jodhpur, Rajasthan: Optimization and kinetic modeling". International Journal of Chemistry Studies, Vol 9, Issue 1, 2025, Pages 1-6
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