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Open AccessArticle

Treatment of High-Strength Animal Industrial Wastewater Using Photo-Assisted Fenton Oxidation Coupled to Photocatalytic Technology

Water Environmental Research Department, National Institute of Environmental Research (NIER), Gyeongseo-dong, Seo-gu, Incheon 22689, Korea
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Water 2019, 11(8), 1553; https://doi.org/10.3390/w11081553
Received: 15 June 2019 / Revised: 25 July 2019 / Accepted: 26 July 2019 / Published: 27 July 2019
(This article belongs to the Special Issue Advanced Oxidation Technologies in Industrial Wastewater Treatment)
Animal wastewater is one of the wastewaters that has a color and is difficult to treat because it contains a large amount of non-degradable organic materials. The photo-assisted Fenton oxidation technique was applied to treat animal wastewater, and the optimal conditions of chemical oxygen demands (COD) removal were analyzed according to changes in pH, ferrous ion, H2O2, and ultraviolet (UV) light intensity as a single experimental condition. Experimental results showed that, under the single-factor experimental conditions, the optimal conditions for degradation of animal wastewater were pH 3.5, Fe(II) 0.01 M, H2O2 0.1 M, light intensity 3.524 mW/m2. Under the optimal conditions, COD removal efficiency was 91%, sludge production was 2.5 mL from 100 mL of solution, color removal efficiency was 80%, and coliform removal efficiency was 99.5%. View Full-Text
Keywords: photocatalytic and photo-assisted Fenton oxidation; animal wastewater; advanced oxidation process (AOPs) photocatalytic and photo-assisted Fenton oxidation; animal wastewater; advanced oxidation process (AOPs)
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Park, J.H.; Shin, D.S.; Lee, J.K. Treatment of High-Strength Animal Industrial Wastewater Using Photo-Assisted Fenton Oxidation Coupled to Photocatalytic Technology. Water 2019, 11, 1553.

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