| Autor: |
Aifang Gao1,2,3 Ilhx2006@126.com, Aiguo Li1, Zhijuan Gao1, Zhaoxia Peng1, Weiping Wang1 |
| Předmět: |
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| Zdroj: |
Fresenius Environmental Bulletin. 2019, Vol. 28 Issue 9, p6435-6443. 9p. |
| Abstrakt: |
Online spectrophotometric technique was adopted to monitor the degradation of simulated Reactive Red B-2BF (RR B-2BF) solution with Fenton oxidation process. The effects of initial FeSO4 dosage, initial H2O2 dosage. pH value, and initial dye concentration on chroma removal have been discussed. The kinetic mechanics of the decolorization of RR B-2BF, the decolorization rate (R) and the constant (kap) were investigated. The results show that the color removal rate of RR B-2BF is 93.47% under the optimum dosage of H2O2 0.96 mM, pH 4.0. FeSO4 (Fe2+) dosage 0.09 mM. and the initial dye concentration 16 mg/L after 300 s. The chroma removal process can be divided into two stages. The intrinsic reaction rate consent of OH with RR B-2BF in aqueous solution is 2.09 109 M-1s-1 in Fenton oxidation process. The molecule structure of RR B-2BF is decomposed and not mineralized thoroughly in Fenton oxidation process (300 s). Online spectrophotometric technique is an accurate, fast, and feasible technique to monitor color removal rat of RR B-2BF with Fenton process. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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