Research Article
Possibility of Removing Pb and Cd from Polluted Water by Modified Fly Ash
Figure 6
The influence of adsorption time on the removal rate of Pb2+ (a) and Cd2+ (b). Adsorption conditions: IP4 dosage: 0.05 g; adsorption temperature: 25°C; agitation speed: 180 rpm; initial Cd2+ concentration: 100 mg/L; initial Pb2+ concentration: 150 mg/L; and adsorption time: 0-120 min.