Research Article

Column Efficiency of Fluoride Removal Using Quaternized Palm Kernel Shell (QPKS)

Table 7

Constant values of Thomas model at different bed heights and initial concentrations by QPKS.

ParameterQPKS
KTh (ml/min·mg)qe (mg/g)R2

Bed height (cm)20.18415.61990.97
60.142810.75490.98
100.106616.55820.96

Initial fluoride concentration (mg/L)20.129311.87780.98
80.055027.90460.99
120.069222.19890.98