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Oxidative Treatment of Some Reactive Dyes by Fenton Reagent

Oxidative Treatment of Some Reactive Dyes by Fenton Reagent
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摘要 Nine kinds of reactive dye solutions: Reactive K -2RL, H-E2R, X-6B1Y, HE-4G, X-3B, K-2R, H - E7B, X -4RN and S - F3B were treated by using Fenton reagent. While the concentration of dye is 400 mg/L, the FeSO4 dosage 100 -180 mg/L, H2O2 240 -540 mg/L, that is the stoichiometric numbers of Fe2+ and H2O2 are between 1: 9 - 1:12, pH = 3, reaction tune In, temperature 25℃, the colority removal efficiency reach more than 95%, the COD removal efficiency 65% -85%, and the TOC removal efficiency 70.2%. By comparing UV-VIS absorption spectrum before and after treatment, it further shows that decomposition effect of Fenton reagent on these nine kinds of reactive dyes is satisfactory. Nine kinds of reactive dye solutions: Reactive K-2RL, H-E2R, X-6B1Y, HE-4G, X-3B, K-2R,H-E7B, X-4RN and S-F3B were treated by using Fenton reagent. While the concentration of dye is 400mg/L, the FeSO4 dosage 100~180 mg/L, H2O2240~S40 mg/L, that is the stoichiometric numbers of Fe2+and H2O2 are between 1:9~1:12, pH=3, reaction time l h, temperature 25℃, the colority removal efficiency reach more than 95%, the COD removal efficiency 65%~8S%, and the TOC removal efficiency 70.2%. By comparing UV-VIS absorption spectrum before and after treatment, it further shows that decomposition effect of Fenton reagent on these nine kinds of reactive dyes is satisfactory.
出处 《Journal of Donghua University(English Edition)》 EI CAS 2003年第1期70-73,共4页 东华大学学报(英文版)
关键词 reactive dye chemical oxidation UV/VIS absorption spectrum. 活性染料 氧化处理 Fenton试剂 双氧水 铁离子
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  • 1Walling,c,Hijnen,W.A.M. International Journal of Chemical Kinetics . 1974

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