The Effects of Operating Variables on Efficancy of Water Disinfection by Sodium Hypochlorite Using Al-Wathba Wastewater

The aim of this investigation was to study the impact various reaction parameters on wastewater taken from Al-Wathba water treatment plant Tigris River in south Baghdad, Iraq with sodium hypochlorite solution. studied were dose, contact time, initial fecal coliform bacteria concentration, temperature, and pH. In a batch reactor, different concentrations solution used disinfect 1L water. amount ions disinfected measured using an Iodimetry test for times, whereas Most Probable Number (MPN) determine concentration bacteria. Total Plate Count (TPC) utilized count number colonies common Reaction variables that examined showed increase pH, time caused Coliform decrease, which turn accumulation-related OCl- concentration. optimum values temperature pH determined be 8 29o C respectively. kinetics study, results Selleck model's order is two, rate constants 1.3791x10-5, 3.0806x10-5, 5.738x10-5 L/(mole min) at 20o, 29o, 37o C,