The results of ANOVA and regression of second order model showed that the linear effects of
Dose (B) and Temperature (E) were more significant. All the critical variables having greatest effect on the removal
of
Dose (B) and Temperature (E) were more significant. All the critical variables having greatest effect on the removal
of Congo red dye from Nano zerovalent iron impregnated cashew nut shell. Thus the obtained nano zerovalent iron