| Title |
A Study on Removal of Natural Organic Matter (NOM) and Application of Advanced Water Treatment Processes for Controlling Disinfection By-Products |
| Authors |
김현구 ( Hyungu Kim ) ; 엄한기 ( Hanki Eom ) ; 이동호 ( Dongho Lee ) ; 주현종 ( Hyunjong Joo ) |
| DOI |
https://doi.org/10.15681/KSWE.2015.31.5.563 |
| Keywords |
F/A; Membrane; NOM; Powdered Activated Carbon; TOC |
| Abstract |
Natural Organic Matter (NOM) is a precursor of disinfection by products. Recently, with the increase in NOM concentration caused by a large amount of algae, the creation of disinfection by-products is becoming a big issue. Therefore, in this study, PAC+Membrane+F/A hybrid process was organized to control disinfection by-products in small-scale water treatment plants. The optimal dosage of PAC was set at 20 mg/L through Lab. scale test. Also, it is judged that NOM concentration must be less than 1.0 mg/L to meet the recommended criteria of drinking water quality monitoring items of disinfection by-products during chlorination. The existing conventional water treatment process was compared to the independent F/A process and the PAC +Membrane+F/A hybrid process through pilot plant operation, and the result showed that there is a need to apply an advanced water treatment process to remove not only NOMs but also Geosmin caused by algae. Accordingly, it is considered that applying the PAC+Membrane+F/A process will help in controling a clogged filter caused by a large amount of algae and disinfection by-products created by chlorination and can be used as an advanced water treatment process to meet the recommended criteria of drinking water quality monitoring items. |