Photocatalytic oxidation as tertiary treatment for wastewater generated from the acid esterification of Jatropha curcas L. oil using suspended titanium dioxide

Date

5-2013

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Marilyn C. Del Barrio

Abstract

The photocatalytic oxidation of wastewater generated from the acid esterification of Jatropha curcas L. oil was studied by considering the effects of varying parameters such as irradiation time (2 and 4 hours), UV light intensity (0.048 and 0.056 W/m2) and initial COD loading of wastewater (150 and 550 ppm) to the percent COD reduction. Results showed that the three parameters varied were directly proportional to %COD reduction. The run that gave the highest COD reduction has an initial COD of 150 ppm and was exposed to UV lamp (0.048 W/m2 intensity) for 4 hours. However, statistical analysis using ANOVA showed that only irradiation time and its interaction with initial COD loading have a significant effect on %COD reduction. Using the results of the parametric analysis, the optimum irradiation time for the treatment of wastewater was determined using 500 ppm initial COD loading and 0.048 W/m2 UV lamp intensity. After the treatment process, it was found out that an optimum COD reduction of 90% was observed at irradiation time of 5 hours. Beyond 5 hours, % COD rediction was observed to be already decreasing.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2013 E62 /L38

Document Type

Thesis

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