Evaluation of the comparative rates of BOD removal in aerated and non-aerated systems

Date of Publication

1993

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Chemical Engineering

Subject Categories

Chemical Engineering

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Abstract/Summary

This study evaluated the rates of BOD removal in aerated and non-aerated systems using tannery wastewater. It also looked into the possible methods of treating the wastewater. Analysis on BOD, COD, Solids, pH, Clarity, Color, Sulfides, and Nitrates were monitored daily for four days for both systems.For the aerated system, the wastewater was aerated continuously for four days. The percent inoculum was varied to 10 percent and 20 percent, while the air flowrate was varied to 3 li/min and 5 li/min.For the anaerated system, the wastewater was placed in a sealed plastic container and seeded with septic waste.The results of the study showed that for the aerated system a maximum BOD removal of 59.09 percent at the 4th day of aeration was obtained at 20 percent seed and 5 li/min of air flowrate. While for the anaerated system a maximum BOD removal of 25 percent was obtained at 20 percent seed.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU06118

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

107 leaves ; Computer print-out.

Keywords

Sewage--Purification--Aeration; Sewage-- Purification--Biological treatment; Sewage disposal; Water--Aeration

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