A Comparative Study of Sugarcane Bagasse and Boiler Ash for the Adsorption of Basic Malachite Green from Simulated Textile Wastewaster

Author : Penlac, Kliemen Rey Victoria Gagaoin
Major Adviser : Arocena, Rhebner E. 
Committee Members : Del Barrio, Marilyn C.; Movillon, Jovita A. 
Year : 2013
Month : October
Type : Thesis
Degree: BS
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Abstract

The adsorption of color from simulated textile wastewater using bagasse and boiler ash was evaluated as favorable based on dimensionless R computation. The best conditions of the Basic Malachite Green(BMG)-Ash system with highest percent color removal was at pH 3.9 (98.78%), 150 ppm (97.71%) and 1.0 g ash per 100 mL solution (91.59%) while for the BMG-Bagasse system, highest percent color removal was at pH 3.9 (98.78%), 200 ppm (98.13%) and 1.0 g bagasse per 100 mL solution (94.89%). All the set-up conditions with higher percent removal were observed after 100 minutes. The experimental data were further analyzed by fitting the adsorbate-adsorbent systems in different isotherms. Using the correlation coefficient (R₂) as basis, the BMG-Bagasse and BMG-Ash systems best fitted Freundlich isotherm and BET isotherm, respectively, while using Giles classification as basis, the isotherms were classified as S-3 and L-4 respectively. The maximum adsorptive capacity of boiler ash and bagasse was 15.5926 and 12.5636 mg BMG per g adsorbent, respectively.


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