摘要
Abstract [ Objective] The degradation conditions and course of reactive brilliant red X-3B by Fenton oxidation was investigated to understand the feasibility of using Fenton oxidation for dye removal. [Metbed] By using Fenton oxidation, the degradation conditions of reactive brilliant red X-3B wastewater was studied in different initial concentrations, then analyzed its degradation products and process through gas chromatography-mass spectrometer （GC-MS）. [ Remit] When H202：Fe2＋ （molar ratio） =3.1, the removal rate of CODc, was the highest. With the increase of Fe2＋ dos- age, the wastewater became red and more deposits generated. As CODc, of wastewater was 200,400 and 800 mg/L, the dosage of H202 was 0.5, 1.0 and 3.5 ml respectively, and the best initial pH of the wastewater was 4 -5, the removal rate of GODc, reached the maximum values. In addition, Fenton reaction was very fast, that is, most degradation occurred in the first 5 min. [ Cenclmion] Fenton oxidation technology is practical and efficient in the declradation of dves which are mineralized difficultly.
Abstract [ Objective] The degradation conditions and course of reactive brilliant red X-3B by Fenton oxidation was investigated to understand the feasibility of using Fenton oxidation for dye removal. [Metbed] By using Fenton oxidation, the degradation conditions of reactive brilliant red X-3B wastewater was studied in different initial concentrations, then analyzed its degradation products and process through gas chromatography-mass spectrometer （GC-MS）. [ Remit] When H202：Fe2＋ （molar ratio） =3.1, the removal rate of CODc, was the highest. With the increase of Fe2＋ dos- age, the wastewater became red and more deposits generated. As CODc, of wastewater was 200,400 and 800 mg/L, the dosage of H202 was 0.5, 1.0 and 3.5 ml respectively, and the best initial pH of the wastewater was 4 -5, the removal rate of GODc, reached the maximum values. In addition, Fenton reaction was very fast, that is, most degradation occurred in the first 5 min. [ Cenclmion] Fenton oxidation technology is practical and efficient in the declradation of dves which are mineralized difficultly.
基金
Supported by Key Laboratory Project of Water Pollution Control of Guangdong Province,China (2010009)
