The comparison between radiolysis and photolysis applied in the treatment of VOC – exemplified by IPA

• Main Authors: En-Jung Chang, 張恩榮
• Other Authors: Kai-Yuan Cheng
• Format: Others
• Language: zh-TW
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/78724592169301265725

碩士 === 中臺科技大學 === 放射科學研究所 === 95 === The Isopropanol Alcohol（IPA） is the main organic composition in the waste-water of the industry of the semiconductor makeses. Because of the large amount of the high concentration of IPA, the decomposition by traditional process or physical and biological disposal is not very well. This incomplete treatment of the waste-water will cause the injury on the living beings and environment. The purpose of this study is to discuss the differences between usingγ-ray radiolysis and UV photolysis to treat the IPA waste-water. In this experiment, , the result of γ-ray treatment is superior to ultraviolet photolysis. For example, theγ-ray can cause the37% decomposition in a 200ppm solution, but the 254nm ultraviolet can only be reached 3%. Furthermore, adding the hydrogen peroxide will improve the result, because the hydroxyl radical of hydrogen peroxide can cause the decomposition of IPA. Acetone was found in the γ-ray processed sample in Gas Chromatograph.