Extraction and determination of concentration levels of humic acid and fulvic acid in Laguna de Bay waters

Date

10-1999

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Carlito R. Barril

Co-adviser

Rubya Ynalvez

Committee Member

Ma. Cecilia D. De Mesa

Abstract

Humic acid (HA) and fulvic acid (FA) were extracted from Laguna de Bay waters using adsorption, molecular sieve and ion exchange chromatographic methods followed by lyophilization. The humic fractions extracted amounted to 110 mg fulvic acid and 70 mg humic acid from 50 liters of water samples from Laguna de Bay corresponding to concentration levels of 2.2 mg/L and 1.4 mg/L, respectively. Results show that Laguna de Bay is nearing the saturation level for humic substances of about 5.0 mg/L. The total concentration of humic substances obtained (3.6 mg/L) when related to trihalomethane concentration level during chlorine treatment of water may exceed the allowable total trihalomethane (TTHM) maximum concentration of 0.1 mg/L set by USEPA.

Language

Filipino

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1999 C4 A55

Document Type

Thesis

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