Biodegradation study on coconut fatty alcohol sulfate in aerated and non-renewed static water

Date

10-2003

Degree

Bachelor of Science in Agricultural Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo-Basilio

Co-adviser

Macario P Catahan

Committee Member

Rommel S. Talan

Abstract

The biodegradability of Coconut Fatty Alcohol Sulfate (CFAS) of 72.3% purity in non-sterile tap water was determined in static, aerated and non-renewed set-up at an hourly basis for a period of 24 hours using surfactant concentrations of 0, 1.0, 2.0 and 3.0 mg The methylene blue active substances (MBAS) method was used to determine the CFAS concentration in the different test waters. Surfactant concentrations were measured as MBAS from a calibration curve using sodium dodecyl sulfate as standard. Statistical analyses showed a significant difference at 1% level in varying residual CFAS concentrations. Surfactant concentration of 1.0 mg L" was the fastest to be degraded in water as compared to the 2.0 and 3.0 mg L"' test subjects. CFAS levels in all test waters dropped continuously to almost 0 mg L"' after 24 hours of the test. Physicochemical parameters such as pH, temperature, dissolved oxygen (DO), and total dissolved solids (TDS) were measured. The water used in the study was Class C water based on the parameter readings obtained in the experiment and on the standards set by the DENR.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

"LG 993.5 2003 A13 /M33"

Document Type

Thesis

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