Removal of AzO Dye in Water Using Vacuum Ultraviolet (VUV) Process

Thunyalux Ratpukdi; Nadthapon Boonlerdlon; Banhan Nanthakod; Phonrawee Wonghad

doi:10.4028/www.scientific.net/AMR.931-932.261

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 931-932Removal of AzO Dye in Water Using Vacuum...

Removal of AzO Dye in Water Using Vacuum Ultraviolet (VUV) Process

Abstract:

Removal of azo dye (Novacron Orange C-3R) in water using vacuum ultraviolet (VUV) process was investigated. The factors affecting the VUV process included concentration of dye, power of VUV and bicarbonate (HCO₃^-) were studies. Ultraviolet (UV) experiment was also performed for comparison. Initial dye concentrations of 5, 10, and 50 mg/L, VUV powers of 30, 60, and 120 W and bicarbonate 450 and 900 mg/L as CaCO₃ were tested. At lamp power of 120 W, VUV process could be reduced 99.85 % of dye and 99% of chemical oxygen demand (COD) while UV process reduced 44.69 % of dye, 50% of COD. Bicarbonate was found to have little impact on dye removal rate.

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Periodical:

Advanced Materials Research (Volumes 931-932)

Pages:

261-265

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.931-932.261

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Online since:

May 2014

Authors:

Thunyalux Ratpukdi*, Nadthapon Boonlerdlon, Banhan Nanthakod, Phonrawee Wonghad

Keywords:

Advanced Oxidation Processes (AOPs), Azo Dye Color, Hydroxyl Radicals, Vacuum Ultraviolet (VUV)

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* - Corresponding Author

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