Design, fabrication, and preliminary testing of a continuous-flow photocatalytic reactor with hydroclone for suspended titanium dioxide recovery.

Date

4-2013

Degree

Bachelor of Science in Chemical Engineering

Major Course

Major in Sugar Technology

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Ramon P. Bautista

Committee Member

Jeanne Michelle T. Valencia

Abstract

Ion-exchange resin columns in the sugar refinery produces effluents that are highly colored, wherein one main colorant is melanoidin. The waste water produced in the backwashing of the columns should first be treated to reduce the pollutants. With the proposed design of the photocatalytic reactor, a simulated melanoidin solution was decolorized by photocatalysis with the recovery of titanium dioxide using a hydroclone. The helical reactor design was made of polyurethane tubes attached to a plexiglass wherein the UV lamp was placed at the center. The photocatalyst used was anatase titanium dioxide with particle size of 5 micrometers which was suspended in solution. Preliminary tests of the equipment resulted to the decolorization of melanoidin of 6.69%, while the solids recovery of the hydroclone was 56.09%. The equipment made may be further improved to achieve better results, which may be a model for upscale to be used in the industry.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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