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Change of Molecular Weight of Organic Matters through Unit Water Treatment Process and Associated Chlorination Byproducts Formation
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  • Journal title : Environmental Engineering Research
  • Volume 12, Issue 5,  2007, pp.224-230
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2007.12.5.224
 Title & Authors
Change of Molecular Weight of Organic Matters through Unit Water Treatment Process and Associated Chlorination Byproducts Formation
Sohn, Jin-Sik; Kang, Hyo-Soon; Han, Ji-Hee; Yoon, Yeo-Min;
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 Abstract
The objectives of this study were to evaluate the change of molecular weight (MW) profiles in natural organic matter (NOM) through various treatment processes (coagulation, granular activated carbon (GAC), and ozonation) using high performance size exclusion chromatography based on ultraviolet absorbance and dissolved organic detection (HPSEC-UVA-DOC). In addition, relationships between MW profiles and disinfection by-production (DBP) formation were evaluated. Each treatment process results in significant different effects on NOM profiles. Coagulation is effective to remove high molecular weight NOM, while GAC is effective to remove low molecular weight NOM. Ozonation removes only a small portion of NOM, while it induces a significant reduction of UV absorbance due to breakdown of the aromatic groups. All treated waters are chlorinated, and chlorination DBPs such as trihalomethanes (THMs) and haloacetic acids (HAAs) are measured under formation potential conditions. Both THM and HAA formation potentials were significantly reduced through the coagulation process. GAC was more effective to reduce THM formation compared to HAA formation reduction, while ozonation showed significant HAA reduction compared to THM reduction.
 Keywords
NOM;HPLC;SEC;THM;HAA;
 Language
English
 Cited by
1.
하수처리장 방류수의 UV 처리시 유기물질, 잔류염소 및 소독부산물 생성 거동,한지희;손진식;

상하수도학회지, 2014. vol.28. 1, pp.61-72 crossref(new window)
1.
Distribution of dissolved organic matter fractions along several stages of a drinking water treatment plant, Journal of Water Process Engineering, 2015, 6, 64  crossref(new windwow)
2.
Behavior of Organic Matter, Chlorine Residual and Disinfection By-Products (DBPs) Formation during UV Treatment of Wastewater Treatment Plant Effluents, Journal of Korean Society of Water and Wastewater, 2014, 28, 1, 61  crossref(new windwow)
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