Parametric and Isotherm Studies for the Batch Adsorption of Methylene Blue Dye Using Waste Tea Leaves as Adsorbent

Author : Villanueva, Abegail Marie P.
Major Adviser : Guerrero, Gino Apollo M.
Committee Members : Alfafara, Catalino G.; Arocena, Rhebner E.
Year : 2015
Month : December
Type : Thesis
Degree: BS
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In this study, the effectiveness of waste tea leaves on the adsorption of methylene blue dye was tested. It was found out that contact time, initial dye concentration, pH and its interactions significantly affect the removal of methylene blue dye. The highest %removal of methylene blue dye, 91.18%, occurred at a pH equal to 10, initial dye concentration of 10 ppm and contact time of 2 hours. It was also found out that the adsorption system follows the Redlich – Peterson isotherm best with a regression value of 0.9872. The Redlich – Peterson adsorption capacity constant, Redlich – Peterson isotherm constant and the empirical constant were found out to be 0.49, 1.22 and 0.11 respectively.

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