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Electrochemical Pre-Oxidation of Drinking Water by On-Site Electro-Generation of Hydrogen Peroxide

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Abstract:

Hydrogen peroxide is a green oxidizer. On-site electrochemical production of hydrogen peroxide has potential to become a new way for raw water pre-oxidation. The performance of electro-generation hydrogen peroxide was studied in the electrochemical reactor equipped with graphite felt as cathode and RuO2-IrO2-coated titanium mesh as anode. The effect of water flow rate, air flow rate and current density on concentration of hydrogen peroxide and energy consumption was studied. Results indicate that the optimal condition for the lowest energy consumption is to directly produce 5 mg/L of hydrogen peroxide as compared with producing high concentration followed by dilution. It was found that electrochemical pre-oxidation technology had a good effect on sterilization and removing turbidity and stink for raw water.

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Periodical:

Advanced Materials Research (Volume 663)

Pages:

413-416

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.663.413

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Online since:

February 2013

Authors:

Jie Miao, Yong Mei Chen, Ping Yu Wan

Keywords:

Electro-Generation, Hydrogen Peroxide, Neutral Water, Pre-Oxidation

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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