Rationale

Section 9.2: Typo "ILa" should be "<". Section 9.4: Should include language for keeping carbon off of the flask walls and in solution in order to achieve correct adsorption for each carbon dosage. Section 9.5 and 9.6: 1) Why select 2 hrs. when there is no confirmation / verification of achieving adsorption equilibrium ? 2) Section 4.1 is ambiguous and does not provide an indication of conducting a contact time study to confirm adsorption equilibrium.