Anaerobic digestion of ph-controlled wastewater generated from sodium hydroxide- methanol transesterification of Jatropha curcas L. oil

Date

4-2009

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jovita L. Movillon

Committee Member

Jerico R. Aguila, Amelia E. Parao

Abstract

The wastewater discharged from Sodium Hydroxide-Methanol transesterification of Jatropha curcas L. oil with an pH 8.9, COD of 7534.g/mL and BOD of 5,862mg/mL. was subjected to anaerobic digestion for a hydraulic retention time of 20 days under a mesophilic temperature . Prior to digestion process, acclimazation of inoculum was done by feeding neutralized substrate. the performance of the reactors at different organic loading rates (OLR) of 100mg/L-day, 200mg/L-day and 400mg/L-day was determined. The pH temperature, alkalinity, gas production and analysis of COD reduction of the reactors were monitored. The reactor with the highest OLR yielded the highest gas production (9654.34mL) and percent COD reduction (80%). however, statistical analysis showed that significant difference only occurred in gas production (p<0.1).

Language

English

LC Subject

Sewage sludge digestion, Methanol., Jatropha., Wastewater.

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

LG 993 2009 E62 T75

Document Type

Thesis

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