Surfactant levels and some water quality parameters in selected groundwater sites in Bay and Los Baños, Laguna

Date

4-2006

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo-Basilio

Abstract

REOGO, GLAIZA TARZONA, College of Arts and Sciences, University of the Philippines Los Banos, March 2006. SURFACTANT LEVELS AND SOME WATER QUALITY PARAMETERS IN SELECTED GROUNDWATER SITES IN BAY AND LOS BANOS, LAGUNA.

Adviser: Dr. Nieva T. Librojo-Basilio

Surfactant levels and some water quality parameters of ten selected groundwater sites in Los Banos and Bay, Laguna were studied from August 2005 to March 2006. The water quality parameters monitored were pH, temperature, total dissolved solids (TDS), total hardness, most probable number of coliform, chloride, lead and nitrate as nitrogen content.

The surfactant levels ranged from 0.1997 to 0.5111 mg/L, which were relatively higher compared to the MBAS obtained three years ago. All values except for one site exceeded the maximum allowable limit (MAL) of MBAS for class A drinking water which is equal to 0.2 mg/L only. The location of the wells did not have a significant effect on the variation of MBAS levels obtained from the wells.

The presumptive test for MPN for coliforms ranged from 20 to greater than 180 MPN/100 mL of samples. The confirmatory test, however, showed that all the samples contained no greater than 1 MPN of coliform/100 mL of sample, indicating that the water samples were free of any microbial organisms.

The pH and temperature readings of the groundwater from the ten sites for January 21, February 5 and February 18, 2006 ranged from 6.30 to 7.68 and 26 to 42°C, respectively. Values for the total dissolved solids (TDS), total hardness, chloride, nitrate as nitrogen and lead content, on the other hand, ranged from 210 to 676, 49.30 to 324.69, 15.63 to 136.98, 1.9763 to 10.3620, and 0.0453 to 0.0848 mg/L, respectively.

Single Effect Analysis of Variance (ANOVA) and Duncan's Multiple Range Test (DMRT) were performed to determine the effect of variation with respect to collection time, sampling site location, depth and age of well, activities done by households using the well and its interactions with the parameters monitored. At 95% confidence level, it was found that the location and time of sampling did not significantly affect all of the parameters monitored. On the other hand. the age and depth of the wells significantly affected the said parameters.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2006 C4 R46

Document Type

Thesis

This document is currently not available here.

Share

COinS