Comparison Between Chlorine Dioxide and Chlorine for Use as a Disinfectant of Wastewater Effluents

Abstract

The aim of this research was to investigate the possibility of using chlorine dioxide as an alternative to chlorine as a disinfectant of effluents from municipal sewage treatment plants, in order to obtain an environmentally safe source of water that can be reused for a variety of purposes. The main task was to compare the effect of chlorine dioxide and chlorine as a disinfectant of effluents from various types of sewage treatment plants. Residual chlorine dioxide, chlorite ion, chlorine and MPN/100mL of the surviving total coliforms, fecal colifonms, fecal streptococcus and E-coli phages were determined as a function of these disinfectants' doses and contact times.