| Title |
Effect of γ-ray Irradiation on THMs Formation and Water Quality Characteristics in the Chlorination of Humic Acid Contaming Water |
| Authors |
강철호 ( Chul Ho Kang ) ; 임현우 ( Hyun Woo Lim ) ; 정성운 ( Sung Woon Jung ) ; 최종혁 ( Jong Hyuk Choi ) ; 김종훈 ( Jong Hoon Kim ) ; 최용욱 ( Yong Wook Choi ) ; 이면주 ( Myun Joo Lee ) |
| Keywords |
Chlorination; THMFP; Water quality characterization; γ-ray irradiation |
| Abstract |
Variation of formation potential of THM (THMFP) by chlorination of humic acid and characteristics of water quality with γ-ray irradiation were investigated, which were divided into two categories by the order of γ-ray irradiation and chlorination in water treatment process. The group A consisted of the γ-ray irradiation followed by chlorination process of humic acid, and the group B consisted of the chlorination followed by γ-ray irradiation process. The pH, ORP, UV(254), and DOC decreased rapidly with an increase in γ-ray irradiation of 3 kGy. while conductivity was little changed. Maximum degradation ratio of chloroform in THMs of group A was 82%, while that in group B was 69%. No brominated THMs were detected at high irradiation (>3 kGy). We found that group A water treatment process was more effective in lowering the THMFP than that of group B. |