การศึกษาคุณภาพน้ำดื่มจากจุดบริการน้ำดื่ม ภายในมหาวิทยาลัยราชภัฏนครศรีธรรมราช

Abstract

The objective of this research was to study the quality of drinking water from drinking water service point in Nakhon Si Thammarat Rajabhat University. The samples were collected from 15 points of drinking water various service points during three months from June to August 2016. The physical, chemical and microbiological water quality were analyzed. Ten parameters including temperature, pH, turbidity, dissolved solids, hardness, iron, chloride, coliforms bacteria, fecal coliforms bacteria and E. coli. were evaluated. The results found that physical and chemical quality of water samples were according to the drinking water quality standards. For the results of the microbiological water quality; it was found that 7 points of samples were according to the drinking water quality standards which coliforms bacteria was <2 MPN/100 ml, fecal coliforms bacteria was <2 MPN/100 ml and E. coli. was none detectable. And 8 points of samples were exceeding to the drinking water quality standards which coliforms bacteria was between <2 to 2,400 MPN/100 ml, fecal coliforms bacteria was <2 to 920 MPN/100 ml and E. coli. was detected. (Drinking Water Standards Maximum Contaminant Levels are <2.2 MPN/100 ml of coliforms bacteria, <2 MPN/100 ml of fecal coliforms bacteria and non-detected E. coli.)