Abstract / Description of output
This work applied the photo-Fenton process to mitigate quartz fouling in ultraviolet-A (UVA) wastewater treatment. The impacts of the pH, iron and phosphorus concentration in synthetic wastewater were explored. It was observed that the photo-Fenton process (5 mg/L of Fe 2+, 10 mg/L of H 2O 2) mitigated quartz fouling and achieved 33% of chemical oxygen demand (COD) removal. It was also found that the presence of UVA irradiation and/or acidic conditions substantially decreased fouling formation. X-ray diffraction as well as energy-dispersive spectroscopy measurements showed that fouling consisted mainly of Fe, Ca, P, and Na. Increasing P concentration in wastewater from 5 to 40 mg/L enhanced fouling formation as well as COD removal from 35% to 51%, respectively. This work provides insight, for the first time, into the role of Fenton reaction in mitigating quartz fouling, one of the technical challenges in upscaling photocatalytic treatment.
Original language | English |
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Number of pages | 21 |
Journal | Water and Environment Journal |
Early online date | 11 Jan 2025 |
DOIs | |
Publication status | E-pub ahead of print - 11 Jan 2025 |
Keywords / Materials (for Non-textual outputs)
- advanced oxidation processes
- fouling mitigation
- photocatalysis
- wastewater treatment