QUALITY OF DRINKING WATER IN ELEMENTARY SCHOOLS IN LADKRABANG, KHLONG SAM WA AND NONG CHOK DISTRICTS IN BANGKOK

Abstract

The research was a study in quality of drinking water provided in 30 primary schools in Bangkok which are located in 3 different districts: Ladkrabang, Khlong Sam Wa and Nong Chok. The study was to test the water quality and to identify physical properties including color, turbidity, pH value and chlorine density in drinking water while data concerning microbiology such as Fecal Coliform bacteria, Coliform bacteria, MPN (Most Probable Number) which all these need to meet drinking water quality by The Department of Health 2010.The overall quality analysis showed that drinking water in 17 schools met quality requirements which were considered to be 56.67 % and the factors studied were considered that the turbidity problem shown with MPN value.

The laboratory results revealed two problems: turbidity and microbial contamination. In order to solve turbidity problem, water purifier with high potential filtration system is a good solution and microbial contamination problem as found on MPN could be solved with bacteria elimination system coherently installed in the water purifier.