Monitoring biodegradation of Coconut Fatty Alcohol Sulfate (CFAS) in a 24-hour experiment of combined flow through and static set-up.

Date

4-2003

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo-Basilio

Abstract

Tamayao, Jannell Tamayo. College of Arts And Sciences, University of the Philippines Los Banos, College, Laguna, April 2003. Monitored Biodegradation of Coconut Fatty Alcohol Sulfate (CFAS) in a 24 hour Experiment of Combined Flow-Through and Static Set-up.

Adviser: Dr. Nieva T. Librojo- Basilio

The biodegradability of Coconut Fatty Alcohol Sulfate (CFAS) in combined flow through and static environment was monitored for 24 hours. Some of the water quality parameters measured were temperature, pH, Dissolved Oxygen (DO) and Total Dissolved Solids (TDS). Prior to the experiment, the purity of CFAS was determined as 76.7%.

Monitoring of the biodegradability of CFAS was done by measuring the surfactant concentration present in the water sample using Methylene Blue Active Substance (MBAS) method with the test concentrations of 0, I and 3 mg for 24 hours. It was observed that at these test concentrations, CFAS dropped to zero at the end of the sampling time

The pH ranged from 6.51-7.15. The temperature obtained was dependent on the time of sampling. It was recorded highest at 31C6after three hours of sampling. Dissolved Oxygen was lowest at 3.0 mg at the CFAS concentration of 3 mg Li. This can be attributed to the oxygen consumed by CFAS biodegradation. Total dissolved solids of the 3mg Latest concentration was highest at 286.17 mgL-1. This can be due to the CFAS particles in the water.

The experimental design was laid out in factorial experiment in Completely Randomized Design. ANOVA of temperature and pH significantly differed with CFAS concentration at 1% level of significance. On the other hand, no significant difference was observed for total dissolved solids and dissolved oxygen determined at the three CFAS concentrations. Dissolved oxygen significantly differed at each test concentration using 5% level of significance while total dissolved solids did not vary significantly at each test concentration.

Except for the dissolved oxygen the values obtained for the water quality parameters such as pH. total dissolved solids and temperature all fall within the Maximum Allowable Limit (MAL) set by the Department of Environment and Natural Resources (DENR) for class C waters.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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