Two Sides of a Coin: Targets and By-Products of Water and Wastewater Treatment

Abstract

With time new methods/technique developed for clean/portable as same, it is essential to authenticate them. In this chapter the discussion on what is the disadvantage of tertiary treatment including harmful disinfection by-products (DBP). The details of Trihalomethanes, Haloacetic acid, Nitrosamine and Perfluorinated compounds, its necessary condition like precursors for formation the in treatment. As well as how to get rid of these compounds and their pathways are also summarized. Chlorination is the cheapest, realistic and most effective method in comparison to ozonation and UV radiations. Among all the methods mentioned above, chlorination is the cheapest, realistic and most effective method for achieving the best results. However, its results in harmful disinfection by-products, which need to understand the critical situation.