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Research Article

Adsorption of Hexavalent Chromium from Aqueous Solution Using Chemically Activated Carbon Prepared from Locally Available Waste of Bamboo (Oxytenanthera abyssinica)

Table 3

Kinetics parameters for the adsorption of Hexavalent Chromium on BWAC at 300 K.
Kinetic constantsValues
Pseudo-first-order 
  (exp.)(mg/g)1.21
  (cal.)(mg/g)1
   × 10−4 (min−1)1.16
  0.842
Pseudo-second-order 
  (cal.)(mg/g)1.2
  (mg/g/min)0.834
  0.997
Intraparticle diffusion 
  (mg/g/min)0.009
  (mg/g), intraparticle diffusion constant0.34
  0.908
exp.: experimental result; cal.: calculated result.