Photocatalytic oxidation of biodiesel wastewater from the neutralization step of biodiesel production from Jatropha curcas L. using immobilized titanium dioxide.

Date

10-2011

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Del Barrio, Marilyn C.

Co-adviser

Bautista, Ramer P

Committee Member

Santiago, Denise Ester O

Abstract

Photocatalytic oxidation was used to degrade the organic material present in the washings of the Jatropha oil from neutralization process. Four immobilization media were tested: flat and corrugated galvanized iron, glass plate and lahar. Among the media used, the lahar showed the highest reduction in the chemical oxygen demand (COD) while the other media demonstrated increased in COD concentrations. The increase was accounted to the species present in the wastewater sample and the chemicals present in the paint used for the immobilization of TiO2 onto the photocatalyst media. The highest reduction attained using the lahar medium under the solar treatment was 10.93 %. This resulted from the TiO2 immobilized using 3.5% w/v slurry. The same setup was treated using the UV lamp. A reduction of 12.67% was observed. However, at 5 % level of significance, there was no significant difference between the two.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

Thesis

Document Type

Thesis

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