Chemical Oxygen Demand (COD) and color removal of plating wastewater using Fenton's process

Date

4-2009

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jerico R. Aguila

Committee Member

Jovita L. Movillion, Amelia E. Parao

Abstract

The Fenton treatment of a plating wastewater from a plating facility was studied. Factors such as hydrogen peroxide, iron catalyst and wastewater volume were varied. The first treatment level, which varied the H2O2 volumes (5, 9, 13, 17 and 21 mL) while holding the iron catalyst and wastewater volumes constant at 1 mL and 25 mL, respectively, achieved an optimal COD and color reduction of 99.88% and 98.31% respectively at the ratio of 1:9:25. The second treatment level utilized a constant H2O2 and wastewater volume of 9 mL and 25 mL respectively while varying the iron catalyst volumes (0.4, 0.8, 1.2, 1.6 and 2 mL). Optima of 99.88% and 98.23% COD and color removals were achieved from this level at the ratio of 0.8:9:25. The third treatment level utilized the optimum volumes of 0.8 mL and 9 mL for iron catalyst and hydrogen peroxide amount, respectively, to treat varying volumes of wastewater (15, 25, 35, 45 and 55 mL). The best ratio selected was 0.8:9:35 with a COD and color removal of 99.81% and 96.51% respectively. This optimum ratio had a final COD value of 148 mg/L, a color reading of 48 PCU, pH of 9.2 and reaction time of 6.85 hours, making it compliant of the DAO 35 standards for class C wastewater for old and existing industries. The Fenton’s process was found to be an effective treatment for this kind of wastewater, based on the results obtained.

Language

English

LC Subject

Metal-working machinery, Water--Purification--Color removal

Location

UPLB College of Engineering and Agro-Industrial Technology

Call Number

LG 993 2009 E62 T36

Document Type

Thesis

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