This thesis examines the feasibility of using silver nanoparticles (AgNPs) as a viable disinfectant. It explores the opportunities and challenges of using AgNPs as an antimicrobial agent, and includes the latest research findings. It compares three kinds of AgNPs with regard to their antibacterial and antiviral effects; their sustainability in real water matrices; and their antiviral mechanisms. The outcome of this research equips the water industry with a better understanding of the capacity, extent and mechanisms of nanosilver disinfection. It is of interest to graduate students, academics and researchers in the area of nanotechnology and environmental engineering.
TABLE OF CONTENTS ACKNOWLEDGEMENT I SUMMARY V LIST OF TABLES VIII LIST OF FIGURES IX LIST OF ABBREVIATIONS XI CHAPTER 1 INTRODUCTION 1 1.1 DRINKING WATER SAFETY 1 1.2 CURRENT AND EMERGING WATERBORNE PATHOGENS 2 1.2.1 Bacterial pathogens 2 1.2.2 Viral pathogens 3 1.3 SELECTION OF DISINFECTION STRATEGIES 4 1.3.1 Chlorine and related chemicals 5 1.3.2 Ozone 6 1.3.3 Ultraviolet irradiation 7 1.4 SILVER AS ANTIMICROBIAL AGENT &nl“i