Parametric study on the photocatalytic decolorization of an aqueous organic dye mixture using fractional factorial experiment

Date

7-2014

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Manolito E. Bambase

Abstract

The parametric study on the photocatalytic decolorization of a simulated organic dye wastewater containing equal concentrations of Congo Red, Rhodamine B, Turquoise Blue G, and Acid Orange Using TiO2 was conducted using a 2-1 fractional factorial experiment. The effects of temperature (A: 32 and 80oC), pH (B4 and 10), catalyst loading (C 500 and 1,000mg/L), initial dye concentration (D 100 and 1,000 mg/L), irradiation time (E15 and 45 minutes), and source of light ( F ultraviolet and visible) on the degree of decolorization of the simulated organic dye wastewater was analyzed. An overall mean of 80% decolorization was achieved.The highest percent decolorization attained was 89.83%. It was achieved under the following conditions: high temperature (80c), low pH(4) low catalyst loading(500 mg/L), high initial dye concentration (1,000 mg/L). low irradiation time(15 minutes), and ultraviolet light as source of light. The factors that had significant effects on the photocatalytic decolorization of the simulated organic dye wastewater were B, D and F. The significant interactions were AB, AE, Af, ABD, and ADF. Among the significant factors and interactions, initial dye concentration (D) contributed the greatest influence on the photocatalytic decolorization of the simulated organic dye wastewater.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2014 E62 /C34

Document Type

Thesis

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