Drinking water chlorination is affected by many factors including chlorine dose, pH, temperature and contact time. Diminutive work has been reported regarding the bacterial pollution of drinking water in Pakistan. In addition, no proper conditions have been reported for effective chlorination system to meet WHO and EPA drinking water quality standards. This book presents the study designed to optimize the required conditions for chlorination for maximum inactivation of E. coli and Salmonella in distilled, tap and well water. Three different dosages; 0.25,0.5 and 1.0 mg/L were applied. Samples...

Water is an essential resource for human life. However, more than 1.2 billion people still do not have access to safe drinking water. Microbiological contamination is the primary cause of disease outbreaks with drinking water. This book presents research work, undertaken to determine the disinfection efficiency of ozone. Inactivation of pure and mixed culture of E. coli and Salmonella, inoculated in distilled water and drinking water samples was conducted under controlled environmental conditions such as pH, temperature, ozone dose and contact time to study their effects on...