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Degradation of p-cresol in the presence of UV light driven in an integrated system containing photocatalytic and packed bed biofilm reactor
[Display omitted] •Lab-scaled photocatalyst (TiO2) was prepared by the solution combustion method.•Synthesize photocatalyst characterized by FESEM, XRD and XPS.•BOD5/COD (0.59±0.089) and BOD5/TOC (1.74±0.03) were improved by photocatalytic degradation.•Maximum removal efficiency obtained was 98.43±1...
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Published in: | Bioresource technology 2023-11, Vol.387, p.129706-129706, Article 129706 |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | [Display omitted]
•Lab-scaled photocatalyst (TiO2) was prepared by the solution combustion method.•Synthesize photocatalyst characterized by FESEM, XRD and XPS.•BOD5/COD (0.59±0.089) and BOD5/TOC (1.74±0.03) were improved by photocatalytic degradation.•Maximum removal efficiency obtained was 98.43±1.31% through integrated system.•The performance of PBBR was analyzed in terms of % REP, PLR and % ECPR.
Integratingphotocatalysisand biodegradation has shown great potential in wastewater treatment technology. In this study, the degradation of p-cresol in water has been investigated through an integrated system comprising of photocatalytic and packed bed biofilm reactor (PBBR). In the photocatalytic reactor, the biodegradability index (BOD5/COD, BOD5/TOC) of the p-cresol solution was first shown to increase (from 0.098±0.023 to 0.59±0.089 for BOD5/COD and from 0.27±0.030 to 1.74±0.03 for BOD5/TOC). The pseudo-first-order rate constant (kap) was found to be 0.011 min−1. The % removal of the integrated system was found to be 98.43±1.31% at an initial concentration of 700 mg L-1 and residence time of 120 h, which was significantly higher than the PBBR operated alone (34.82±2.62%) under optimized conditions (pH 7.0 and T = 32±2 °C). Using an integrated approach, the efficient removal of p-cresol opens novel future perspectives for catalytic degradation using chemical oxidation. |
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ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2023.129706 |