A large scale decolourization experiment using the SpinChem® rotating bed reactor (RBR) S100, packed with 79 L of activated carbon. The vessel contained 7000 L of water with added methylene blue dye. In under 40 minutes, 95% of the initial concentration of methylene blue was removed from the water, which shows that the RBR S100 can achieve fast reaction times in large scale processes.
Industries Pharmaceuticals and Cosmetics , Food and Beverage, Environmental, Nuclear, Flavour and Fragrances
Topics Process Development, Decolorization, Downstream Processing
Products SpinChem® RBR S100
Details
Deionized tap water (7000 L) was filled in a rectangular vessel where the rotating bed reactor (RBR) S100 was lowered off center. Activated carbon (Epibon Y 12/40, 79 L) was filled in nylon bags (24 pcs, 75 μm mesh size) and the bags were placed evenly distributed in the RBR. 15 g of methylene blue was added to the water (2 mg/L) and the RBR S100 was run at 180 rpm and stopped at 71 minutes. The absorbance was measured using an UV-VIS spectrophotometer and after 38 minutes, the measured absorbance was below 5% of the initial value.
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