Fig. 2From: Kinetics, equilibrium, and thermodynamics investigation on the adsorption of lead(II) by coal-based activated carbonEffect of contact time on Pb(II) adsorption by CBAC (temperature: 298 K; pH: 5.0; initial Pb(II) concentration: 150 mg/L; CBAC dosage: 1.2 g/L (w/v); solution volume: 100 mL)Back to article page