TABLE OF CONTENTS
COVER PAGE
……………………………………………………………………i
TITLE PAGE ............................................................................................ii
CERTIFICATION
PAGE............................................................................iii
APPROVAL
……………………………………………………………………..iv
DEDICATION............................................................................................v
ACKNOWLEDGEMENT............................................................................vi
TABLE OF
CONTENT...............................................................................viii
LIST OF
TABLES…………………………………………………………….….xi
ABSTRACT...............................................................................................xiii
CHAPTHER ONE
1.0
INTRODUCTION………………………………………………………….1
1.1 AIM OF STUDY………………………………………………...…………3
1.2 OBJECTIVE OF STUDY……………………………………...…………..3
CHAPTER TWO
LITERATURE
REVIEW……..…………………………………………….….4
2.0
WATER……………………………..……...……...……………….…4
2.1
DRINKING WATER QUALITY……………………..………….…...5
2.2 BOREHOLE………….…………………………………….…….…...6
2.2.1. CONDITIONS TO BE MET WHEN SITING A BOREHOLE….......7
2.3 OVERVIEW OF STORAGE WATER TANKS…………………...…8
2.4 SOURCES OF MICROORGANISMS IN TANK AND
STORAGE
WATER…………………………………………………….………....9
2.5
WATER BORNE INFECTIOUS DISEASE……………………..….10
2.5.1. EPIDEMIOLOGY………………………………………………..…..12
2.5.2. PREVENTION AND TREATMENT…………………………...……14
2.5.3. WATER BORNE PATHOGENS AND THEIR HEALTH
SIGNIFICANCE………………………………………………...…...15
2.6
PREVENTION OF MICROBIAL CONTAMINATION OF WATER
STORED IN TANKS…………………………………………..…….16
2.6.1. CONTINUOUS CHLORINATION………….………………………17
2.6.2. SIMPLE CHLORINATION…………………………………………17
2.6.3. SUPER CHLORINATION…………………………….…………….17
2.6.4. SHOCK CHLORINATION………………….………………………17
2.6.5. ULTRA VIOLET RADIATION……………………………………..18
2.6.6. OZONATION………………………………………………………..18
2.6.7. BOILING…………………………………………………………….18
2.6.8. PASTEURIZATION…………………………………………………19
CHAPTER THREE
MATERIALS AND METHODS
3.0
COLLECTION OF WATER SAMPLES……………………………..20
3.1 PREPARATION OF MEDIA…………...……………………………20
3.2 BACTERIOLOGICAL QUALITY DETERMINATION……………...22
3.3 MORPHOLOGICAL AND BIOCHEMICAL
CHARACTERIZATION……………………………………………….24
3.4 BIOCHEMICAL TESTS………………………………………………25
CHAPTER FOUR
4.0
RESULTS……………………………………………………………...28
CHAPTER FIVE
5.0
DISCUSSION………………………………………………………....34
5.1 CONCLUSION………………………………………………………..35
REFERENCES…………………………….…………………………37
LIST OF TABLES
TABLE
TITLE
PAGE
1 Total bacterial count of water tank
samples in
the University of Benin Halls of
Residence…………….….…..29
2 Coliform count (MPN) of water samples
from Halls
of Residence in The University
of Benin……………………….30
3
Prevalence of Bacteria in water samples from students
Halls of Residence in University
of Benin……………………..31
4
Cultural characteristics and biochemical characterization
of isolated microorganisms from
water tanks in students
halls of residence in
University of Benin………………………..32
5
Antibiotics susceptibility of Bacteria isolates from Halls of
Residence in the University of
Benin………………………………33
