Novel approach for effective removal of methylene blue dye from water using fava bean peel waste.

The pH factor was dropped because it was not significant in presence of the other factors in the equation, thus the final model has the following form 8 p r e d i c t e d q e = 20.41 + 0.16 C 0 + 0.15 t − 13 l n ( d o s e ) + 2.5 X The model developed after dropping the pH is highly significant with a p -value of 1.074e-15.

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