Explain about the Microbiological Study of Water?

Water is the basic need of life. River, streams and underground water is the prime source for water. However, disposal of industrial, domestic, human and animal wastes in these water sources is of prime concern for human health. Entry of sewage and polluted water in these water bodies increases the amount of organic matter, which serves as an excellent medium for the growth of various microorganisms both pathogenic and non-pathogenic. Among these, the presence of pathogenic microoganisms is of importance. In this practical, we shall therefore focus on the microbiological study of water. What are the types of microorganisms likely to be present in the water? Which are these microorganisms which affect the quality of drinking water? How to know the potability of water by detecting the presence of indicator organisms? These are a few issues covered in this practical.

Objectives

After undertaking this practical, you will be able to:  

1. Familiarize yourself with the types of microbial pathogen present in the water sample, and  

2. know the quality of drinking water or to know the potability of water by detecting the presence of indicator organisms, i.e. coliforms.