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http://dx.doi.org/10.15681/KSWE.2015.31.5.563

A Study on Removal of Natural Organic Matter (NOM) and Application of Advanced Water Treatment Processes for Controlling Disinfection By-Products  

Kim, Hyun Gu (Department of Environmental Energy Engineering, Graduate School Kyonggi University)
Eom, Han Ki (Department of Environmental Energy Engineering, Graduate School Kyonggi University)
Lee, Dong Ho (Department of Environmental Energy Engineering, Graduate School Kyonggi University)
Joo, Hyun Jong (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Journal of Korean Society on Water Environment / v.31, no.5, 2015 , pp. 563-568 More about this Journal
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.
Keywords
F/A; Membrane; NOM; Powdered Activated Carbon; TOC;
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