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Degradation of p-nitrophenol using acoustic cavitation and Fenton chemistry.
J Hazard Mater. 2010 Jan 15; 173(1-3):517-22.JH

Abstract

Due to increasing human requirements, newer chemical species are being observed in the effluent streams with higher loadings such that efficacy of conventional treatment techniques is decreased and a combination of advanced oxidation processes is implemented for enhanced treatment ability and better energy efficiency. In the present work, the efficacy of combination of sonochemistry and Fenton chemistry has been investigated for wastewater treatment considering p-nitrophenol as model pollutant at pilot scale operation. Degradation of p-nitrophenol has been investigated under various operating conditions based on the use of ultrasound, Fenton process, ultrasound and H(2)O(2), ultrasound and Fe, ultrasound and FeSO(4), ultrasound and conventional Fenton process and ultrasound and advanced Fenton process. Two different initial concentrations of 0.5 and 1% of p-nitrophenol have been used for the experiments. In conventional Fenton and advanced Fenton process, two loadings of FeSO(4) and Fe powder 0.5 and 1g/l and three ratios of FeSO(4):H(2)O(2) and Fe:H(2)O(2) (1:5, 1:7.5 and 1:10) were investigated respectively. In all the systems investigated, maximum extent of degradation (66.4%) was observed for 0.5% p-nitrophenol concentration (w/v) using a combination of ultrasound and advanced Fenton process. The novelty of the work is in terms of investigating the efficacies of combined advanced oxidation processes based on the use of cavitation and Fenton chemistry at pilot scale operation and tries to establish the missing design related information for large scale operation of wastewater treatment.

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Authors+Show Affiliations

Pradhan AA
Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India.
Gogate PR
No affiliation info available

MeSH

Ferrous CompoundsHydrogen PeroxideHydrogen-Ion ConcentrationIronNitrophenolsOxidation-ReductionPowdersUltrasonicsWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article

Language

eng

PubMed ID

19758752

Citation

Pradhan, Amey A., and Parag R. Gogate. "Degradation of P-nitrophenol Using Acoustic Cavitation and Fenton Chemistry." Journal of Hazardous Materials, vol. 173, no. 1-3, 2010, pp. 517-22.
Pradhan AA, Gogate PR. Degradation of p-nitrophenol using acoustic cavitation and Fenton chemistry. J Hazard Mater. 2010;173(1-3):517-22.
Pradhan, A. A., & Gogate, P. R. (2010). Degradation of p-nitrophenol using acoustic cavitation and Fenton chemistry. Journal of Hazardous Materials, 173(1-3), 517-22. https://doi.org/10.1016/j.jhazmat.2009.08.115
Pradhan AA, Gogate PR. Degradation of P-nitrophenol Using Acoustic Cavitation and Fenton Chemistry. J Hazard Mater. 2010 Jan 15;173(1-3):517-22. PubMed PMID: 19758752.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Degradation of p-nitrophenol using acoustic cavitation and Fenton chemistry. AU - Pradhan,Amey A, AU - Gogate,Parag R, Y1 - 2009/08/31/ PY - 2009/06/09/received PY - 2009/08/25/revised PY - 2009/08/25/accepted PY - 2009/9/18/entrez PY - 2009/9/18/pubmed PY - 2010/2/19/medline SP - 517 EP - 22 JF - Journal of hazardous materials JO - J Hazard Mater VL - 173 IS - 1-3 N2 - Due to increasing human requirements, newer chemical species are being observed in the effluent streams with higher loadings such that efficacy of conventional treatment techniques is decreased and a combination of advanced oxidation processes is implemented for enhanced treatment ability and better energy efficiency. In the present work, the efficacy of combination of sonochemistry and Fenton chemistry has been investigated for wastewater treatment considering p-nitrophenol as model pollutant at pilot scale operation. Degradation of p-nitrophenol has been investigated under various operating conditions based on the use of ultrasound, Fenton process, ultrasound and H(2)O(2), ultrasound and Fe, ultrasound and FeSO(4), ultrasound and conventional Fenton process and ultrasound and advanced Fenton process. Two different initial concentrations of 0.5 and 1% of p-nitrophenol have been used for the experiments. In conventional Fenton and advanced Fenton process, two loadings of FeSO(4) and Fe powder 0.5 and 1g/l and three ratios of FeSO(4):H(2)O(2) and Fe:H(2)O(2) (1:5, 1:7.5 and 1:10) were investigated respectively. In all the systems investigated, maximum extent of degradation (66.4%) was observed for 0.5% p-nitrophenol concentration (w/v) using a combination of ultrasound and advanced Fenton process. The novelty of the work is in terms of investigating the efficacies of combined advanced oxidation processes based on the use of cavitation and Fenton chemistry at pilot scale operation and tries to establish the missing design related information for large scale operation of wastewater treatment. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19758752/Degradation_of_p_nitrophenol_using_acoustic_cavitation_and_Fenton_chemistry_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(09)01413-7 DB - PRIME DP - Unbound Medicine ER -