Degrade business dyes solution by Fenton method and analyse the oxidated products by LC/MS/MS

• Main Authors: HSIAO YU-TING, 蕭宇廷
• Other Authors: 蘇舜恭
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/00169891648484338330

碩士 === 國立臺灣科技大學 === 纖維及高分子工程系 === 90 === This research is studying about solution of direct dyes and disperse dyes.To simulate organic compounds that is high color and hard to decompose from the coloring factory. Discussing the factors of pH value, Ferrous sulfate, Hydrogen peroxide,oxidated time and the initial concentration of dyes in the process of operating Fenton method. Using LC/MS/MS to analyst the residuary concentration of the target dyes in the examined water,Try to find the best ratio of each agents. The conclusion of this experment is that Fenton method can successfully decolor the direct dyes and disperse dyes.The visible of the examined water is under the limitation of law.In the operating procssing,the COD decreased value of direct dyes is much higher than disperse dyes. The best pH value is 3~6 .But in the base condition,the COD decreased value is much lower.In the oxidated processing ,the COD decreased value of direct dyes is much high er than disperse dyes.The best pH value is 3~4. In direct dyes, the best ratio of H2O2：Fe2+is 4：1 .In disperse dyes, the best ratio of H2O2：Fe2+is 4：3. In the oxidated processing of direct dye(Direct blue 2B), we find that dye molecules stop to degrade in 10 minutes after experiment staring from LC/MS/MS spectrum.