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

Co-adviser

Rex B. Demafelis

Committee Member

Monet Conception C. Maguyon, Amelia E. Parao

Abstract

Study on the treatability of combined waste water from acid esterification and NaOH-MetOH Transesterification of JAtropha curcas L oil using upflow anaerobic fixed-film reactor was undertaken. Upflow anaerobic contact reactor which has no bed was used as control. The wastewater was a high organic-bearing waste with soluble chemical oxygen demand (COD) of 61, 4565 mg/L and biochemical oxygen demand (BOD) of 35, 563 mg/L. It was highly acidic with pH of 4.23 and contained oil and grease of about 485mg/L. The effect of increasing organic rate (OLR) was examined. OLR of 800, 1000 and 1200mg/L-day were run and performance monitoring for pH, temperature, alkalinity and COD reduction were conducted. Also, the effect of varying the pH of the substrate from 7.0 to 7.4 was examined at 1200mg/L-day OLR. Increasing the OLR brought positive result to gas production and COD reduction. Highest efficiency of the reactor was observed at OLR of 1200mg/L-day where COD reduction reached 92.09%. Increasing the pH of the substrate resulted to a decrease in COD reduction. The upflow anaerobic fixed-film reactor is more efficient than the upflow anaerobic reactor. The cumulative volume of gas produced was 6414.5mL for the contact reactor and 8280.5 mL for the fixed-film reactor. The percent difference of the final % COD reduction of fixed film to contact reactor were 23.4%, 21.1% and 15.86% for 1200mg/L-day, 800mg/L-day and 1000mg/L-day OLR, respectively.

Language

English

Call Number

LG 993 2009 E62 M36

Document Type

Thesis

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