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- W1226478211 abstract "Coffee eflluent contains a high amount of dark brown pigments. When this waste is released in the river, itwill block the sun ray and disturb the photosynthesis process. The decolorization of coffee effluent usingphoto-Fenton and Fenton processes is presented in this paper. On the photo-Fenton reaction, UV light, ionj Fe(II) and H2O2 will produce .OH. This will react with organic contaminant, so the color of the effluent willbe changed from brown to yellow, and finally became a clear solution. On the Fenton process, reaction occurred without the existence of UV light. The rate of this decolorization is slower than photo-Fenton reaction. The reaction consists of three phases, the first phase happen when H2Oz is added to the reactor and the color changes rapidly, the color of the solution start to be removed fast (second phase) and then it became faster and there were no more changes in its color (third phase). The color removal rate for second phase at the coffee effluent concentration of 250 ppm,300 ppm, 400 ppm were : r: -0,0322 (Abs)'? ; r = -0,027 |(Abs),; r : -0,0 1 96 (Abs)', whereas the color removal rate for third phase at the coffee effluent concentrationof 250 ppm, 300 ppm, 400 ppmwere: r: -0,0049 (Abs); r= -0,0211 (Abs); r= -0,005 (Abs)." @default.
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- W1226478211 date "2011-07-01" @default.
- W1226478211 modified "2023-09-23" @default.
- W1226478211 title "Decolorization Kinetics From Coffee Effluent With Photo-Fenton Reaction" @default.
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