| Summary: | 碩士 === 國立中興大學 === 環境工程學系所 === 103 === Emerging contaminants include broad chemicals. Some of them are pharmaceuticals and personal care products PPCPs). Because the PPCPs are closely related to human life and have been detected in wastewater, they are considered major emerging contaminant. Fenton oxidation treatment is one of the advanced oxidation processes (AOPs), that it is carried out under acidic condition through ferrous ions and hydrogen peroxide in the reaction. The oxidation process produce a high oxidizing power associated with non-selectivity hydroxyl radical (OH．), which can decompose a variety of organic pollutants in wastewater in the process. In the research, the application of Electro-Fenton process for the degradation of Acetaminophen (ACE) and 1-Octanol wastewater with the appropriate parameters to explore the mineralization and removal capacity was investigated.
Based on the results of background experiment, the optimal parameters for elecro-generated H2O2 were at current of 1.25 A and air flow of 1.0 NL/min. Under these conditions, the the maximum remnant of H2O2 was 11.5 mg/L in 180 minutes of operation. The formation rate was 0.319 mg-H2O2/min in the reaction.
The results showed that, the optimal conditions for the removal rate of ACE (65.88%) and TOC (8.75%) were 0.05 mM of Fe2+ and 1.0 mM of H2O2 at pH 3 in the Fenton process during 180 minutes. By Electro-Fenton process with optimal parameters found in generation experiment, the ACE removal rate is 63.68% and the TOC removal rate is 27.16% after 180 minutes using 0.05 mM of Fe2+. And under direct lectrolysis system, the ACE removal rate is 0.64% and the TOC removal rate is 9.07%. In the three process, Electro-Fenton process has the best effect of the removal rate for TOC. When the treatment time is extended to 360 min, the ACE removal rates are 14.38% by direct electrolysis, 71.63% by Fenton, 78.82% by Electro-Fenton, and the TOC removal is 14.38% by direct electrolysis, 14.38% by Fenton, and 27.98% by Electro-Fenton.
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