Evaluation of advanced oxidation processes for the treatment of corrosion inhibitors

• Main Authors: Shih-Jiun Su, 蘇士鈞
• Other Authors: Li-Choung Chiang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/87023310665944735816

碩士 === 輔英科技大學 === 環境工程與科學系碩士班 === 97 === Advanced oxidation processes including electrochemical oxidation, LED-UV induced photo-catalytic oxidation, chemical oxdation, were applied to the treatment of corrosion inhotors. Experimental results showed that electrochemical oxidation process is the most applicable method for the treatment of corrosion inhibitor. By using a PtOx/Ti anode with chloride as supporting electrolyte and operating at 50mA/cm2, the corrosion inhibitor in boiler cleaning wastewater could be removed more than 90% within 10-hr electrolysis. In this sudy, LED-UV induced photo-catalytic oxidation was not applicable for corrosion inhibitor treatment, owing to LED-UV serving too low energy UV source. Chemical oxidation processes present different results for corrosion inhibitor treatment. Sodium hypochlorite or chlorine dioxide exhibited good efficacy for the treatment of corrosion inhibitor; on the other hand, ozone oxidation was not applicable for the treatment of corrosion inhibitor.