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 ...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.展开更多
文摘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.
