| Title |
Disinfection By-products (DBPs) Formation Potentials in Various Organic Sources |
| Authors |
염철민 ( Yeom Cheol Min ) ; 최유식 ( Choe Yu Sig ) ; 조순행 ( Jo Sun Haeng ) ; 윤제용 ( Yun Je Yong ) |
| Keywords |
disinfection by-product formation potentials; DBPFPs; trihalomethanes; THMs; haloacetic acids; HAAs; total organic halides; TOX; drinking water |
| Abstract |
This study was conducted to investigate the characteristics of disinfection by-products formation potential (DBPFPs) in various organic sources. Twenty three different samples were chosen and were divided into three groups; Group 1 (n=14) includes water samples from surface water such as rivers and reservoir, Group 2 (n=5) includes water samples from municipal wastewater treatment plant and primary treatment effluent of night soil, Group 3 (n=4) includes rain water and organics leached from soil and sediment. The type of DBPs investigated were trihalomethanes (THMs), haloacetic acids (HAAS), total organic halides (TOX). Major findings are as follows. First, average SUVA values of most samples were found to be around 2 (ℓ. cm^(-1)/㎎). This indicates that most dissolved organics in surface water and in municipal waste water consist of hydrophilic organic component, supporting the previous report. Second, for most of samples, the range of specific DBPFPs (THMFPs, HAAFPs and TOXFPs)/DOC at 7day incubation existed in the range of 40-60 (average 54) ㎍/㎎ C, 30-120 (average 90) C and 80-250 (average 179) ㎍/㎎ C. respectively. It is noted that THMFPs/DOC and HAAFPs/DOC were found to be relatively higher in dissolved organics from soil samples. Third, DBPs (THMs, HAAs, TOX) in most of samples were increased with time. THMs at 7day incubation increased almost twice compared with that at 3 day incubation. For HAAs and TOXs, despite of the overall increase, some data were found to be decreased with time. |