Phenolic Wastewater Treatment by Microwave-Induced H2O2-Fe (III)-Cu (II)/γ-Al2O3 Catalytic Oxidation Process

Jie Zhang; Wei Qian Pan; Tong Zheng; Peng Wang

doi:10.4028/www.scientific.net/AMR.777.101

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 777Phenolic Wastewater Treatment by Microwave-Induced...

Phenolic Wastewater Treatment by Microwave-Induced H₂O₂-Fe (III)-Cu (II)/γ-Al₂O₃ Catalytic Oxidation Process

Abstract:

To achieve efficient removal of phenolic pollutants in water, the catalyst of Fe (III)-Cu (II)/γ-Al₂O₃ was prepared. In the presence of Fe (III)-Cu (II)/γ-Al₂O₃, microwave-induced hydrogen peroxide (H₂O₂) catalytic oxidation process was conducted for the treatment of synthetic wastewater containing PNP, a representative of phenolic pollutants. Effectiveness of the process and factors influencing PNP removal were investigated and results showed microwave-induced H₂O₂-Fe (III)-Cu (II)/γ-Al₂O₃ process could achieve 99.41% PNP removal percentage, corresponding to 77.9% TOC removal in a given condition. The process remained effective in the 2-8 pH range with high reusability of Fe (III)-Cu (II)/γ-Al₂O₃catalyst. The kinetics study showed microwave-induced H₂O₂-Fe (III)-Cu (II)/γ-Al₂O₃ process could be divided into microwave induction stage and catalytic oxidation stage, both of which fitted first-order kinetics, with reaction rate constants of 0.0453 min^-1 and 4.7552 min^-1 respectively.

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Environmental Biotechnology and Materials Engineering (2013)

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Periodical:

Advanced Materials Research (Volume 777)

Pages:

101-105

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.777.101

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Online since:

September 2013

Authors:

Jie Zhang, Wei Qian Pan, Tong Zheng, Peng Wang

Keywords:

Fe(III)-Cu(II)/γ-Al₂O₃, H₂O₂, Microwave-Induced Oxidation, Phenolic Wastewater

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