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Table 2

Isotherm parameter constants for Pb(II) sorption onto roots of water hyacinth

Metal IonLangmuir isotherm
Freundlich isotherm
R2(mg/g)(L/mg)R2(mg/g).(L/mg)1/n
Pb(II) 0.987 49.75 0.8627 0.0038–0.02 0.909 23.52 5.63 
Metal IonLangmuir isotherm
Freundlich isotherm
R2(mg/g)(L/mg)R2(mg/g).(L/mg)1/n
Pb(II) 0.987 49.75 0.8627 0.0038–0.02 0.909 23.52 5.63 
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