REDUCTION OF CHLORINE DISINFECTION BY-PRODUCTS USING PRE-OXIDATION IN SURFACE WATER TREATMENT

Abstract

This chapter presents background information on the disinfection process and its importance in preventing the waterborne diseases. Chlorine gas is the most common disinfectant around the world but one of its drawbacks is the formation of chlorinated disinfection byproducts. One of the disinfection byproducts that gained a great concern in the last decades is THM because some researchers have reported these compounds to be carcinogens. This research will present a trail to reduce the formation of THMs using the pre-oxidation technique. Three different oxidants were tested to reduce the organic matter in the raw water before the disinfection process to determine its influence on THMs reduction. • Chapter II: Literature Review Chapter II illustrates a detailed review of the most recent literature and researchers in water importance and treatment systems with a focus on disinfection using chlorine gas and the different factors affect the formation of THMs. In addition, this chapter presents the recent developments in different controlling pathways for reducing the formation potential of THMs. One of the major methods used for reducing the THMs formation is the reduction of organic matter using pre-oxidation. The three used oxidants in this research (Potassium-per-oxy-mono-Sulfate, Potassium Permanganate and Hydrogen peroxide) were also highlighted in this review. • Chapter III: Materials and Methods This includes listing and discussion of the used procedures, analytical methods, Materials, Solutions, instruments, and chemicals.