| pH, 수온, 염소주입량이 정수장 소독부산물 생성에 미치는 영향 |
| 이기창1, 이원태2 |
1경상북도보건환경연구원
2금오공과대학교 환경공학전공 |
| Effects of pH, Water Temperature and Chlorine Dosage on the Formation of Disinfection Byproducts at Water Treatment Plant |
| Ki-chang Lee1, Wontae Lee2 |
1Gyeongsangbuk-do Institute of Health and Environment
2Department of Environmental Engineering, Kumoh National Institute of Technology |
| Corresponding author |
Wontae Lee ,Tel: 054-478-7636 , Fax: 054-478-7859, Email: wtlee@kumoh.ac.kr
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Received: September 2, 2015; Revised: September 8, 2015; Accepted: September 11, 2015. Published online: September 30, 2015. |
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| ABSTRACT |
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This study investigated formation potential of 16 disinfection byproducts (DBPs) (e.g., g trihalomethanes, haloacetic acids, haloacetonitriles, chloral hydrate, etc.) upon chlorination of raw water at various pH, water temperatures, and chlorine doses. We also compared the DBP formation potential (DBPFP) of raw and filtered waters. Most of DBPs were formed higher at neutral pH, but dichloroacetic acid, chloroform, and bromodichloromethane were formed higher over pH 7. As water temperature increased, concentrations of chloral hydrate, haloacetic acids, and haloacetonitriles linearly increased while that of trihalomethanes exponentially increased. Formation of chloral hydrate, trihalomethanes, and trihaloacetonitriles significantly increased up to 2.0 mg/L Cl2 of chlorine addition, then gradually increased at 2.0~5.6 mg/L Cl2. Filtered water formed less DBPs than raw water in most DBPs except for trihalomethanes. |
| Key Words:
Disinfection Byproducts, pH, Water Temperature, Chlorine Dosage, Water Treatment Plant |
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