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Intensified degradation of tartrazine dye present in effluent using ultrasound combined with ultraviolet irradiation and oxidants

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Abstract

Effluent containing tartrazine can affect the environment and human health significantly prompting the current study into degradation using a sonochemical reactor operated individually and combined with advanced oxidation processes. The optimum conditions for ultrasound treatment were established as dye concentration of 10 ppm, pH of 3, temperature as 35 °C, and power as 90 W. The combination approach of H2O2/UV, H2O2/US, and H2O2/UV/US resulted in higher degradation of 25.44%, 57.4%, and 74.36% respectively. Use of ZnO/UV/US approach increased the degradation significantly to 85.31% whereas maximum degradation as 93.11% was obtained for the US/UV/Fenton combination. COD reduction was found maximum as 83.78% for the US/UV/Fenton combination. The kinetic analysis showed that tartrazine dye degradation follows pseudo first-order kinetics for all the studied processes. Combination of Fenton with UV and US was elucidated as the best approach for degradation of tartrazine.

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Sonali P. Jadhav: methodology, investigation, writing original draft.

Sudesh D. Ayare: investigation, data analysis, writing original draft.

Parag R. Gogate: supervision, writing — reviewing and editing.

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Correspondence to Parag R. Gogate.

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Jadhav, S.P., Ayare, S.D. & Gogate, P.R. Intensified degradation of tartrazine dye present in effluent using ultrasound combined with ultraviolet irradiation and oxidants. Environ Monit Assess 196, 431 (2024). https://doi.org/10.1007/s10661-024-12561-x

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  • DOI: https://doi.org/10.1007/s10661-024-12561-x

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