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Effect of the activated carbon dosage (chemical activation 1:2, straw pellet sample) in the range 2.7–20.6 mg AC for 30 mg/dm3 of Rhodamine B solution, sorption at 25 °C determined by UV-VIS analysis, where: q—the activated carbon per mass of the dye adsorbed, AC/RhB. % dye removal—percentage of RhB dye adsorbed by the activated carbon (with unchanging initial concentration of dye).
