Assessment of biochemical oxygen demand test at ambient temperature for various waste water samples

Date

5-1987

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Marlito L. Cardenas

Abstract

The Biochemical Oxygen Demand (BOD) of different standard samples and wastewater samples was determined using the standard BOD test at 20oC for 5 days (BOD520) and the BOD test at ambient * temperature (25 ± 1 oC) for 1 to 5 days. The BOD520 significantly differed from the BOD at ambient temperature on the 1st, 2nd, 4th and 5th day of incubation. However, no significant difference occurred between BOD520 and BOD at (25 ± oC) on the third day. Generally this was true for all samples. Apparently, But) at (25 lC) for 3 days can be used as a substitute to approximate the amount of biodegradable organic matter in wastewater.' BOD reaction rate constant was determined for each incubation condition by applying the first-order reaction. Reaction rate varied among different types of samples. Carbohydrates and acids are degraded by microorganisms more than proteinaceous substances.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1987 C4 J33

Document Type

Thesis

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