Abstract:

The natural organic substance (DOM) is a leading compound in the formation of disinfection side products (DYUs) and is an important part of the natural organic substance discharge in the drinking water processing. DYUs are a source of concern due to potential carcinogenic effects on human health. Therefore, the DOM should be removed before the disinfection process in the drinking water treatment. The conventional method used in the treatment of drinking water in our country is coagulation, floculation, disintegration/flotation after sand filtration. However, since conventional coagulation methods are focused on the removal of foolishness, they cannot provide an effective DOM removal. Therefore, in the DOM removal, the enriched coagulation process where the operating conditions are optimized (such as the coagulant dose and pH) is effectively used. In this study, a review of research studies on DOM removal from drinking water sources with enriched coagulation was presented. The various coagulant substances used in the coagulation process have been studied and referred to factors such as pH, coagulant dose, DOM source that develops coagulation. In addition, the integrated processes that combine membrane filtration, ion exchange and active carbon adsorption with enriched coagulation have been pointed to the effects of integrated processes on DOM removal.

Keywords: