JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Pilot Scale Assessment of DOC and THMs Removal in Conventional Water Treatment System
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Pilot Scale Assessment of DOC and THMs Removal in Conventional Water Treatment System
Lee, Choong-Dae; Lee, Yoon-Jin;
  PDF(new window)
 Abstract
This research aims to investigate the behavior of organic matter that causes bacterial re-growth and the formation of disinfectant by-products such as THM in water treatment, and to optimize conditions for a more efficient and conventional water facility. THM removed 51 % and 12 % through coagulation/sedimentation and filtration using a selected conventional system. In this experiment, the removal ratio of DOC was highest at 68 % when the Gt value was 42,000 and lowest at 41 % when the Gt value was 30,000. 77-84 % of total DOC was removed during coagulation/sedimentation, and 15-23 % was removed during filtration. When Gt values were between 30,000 and 66,000, over 50 % of high molecular matter above 10 K during coagulation/sedimentation was removed. Turbidity removed 98 % when the G1 value was 66,000. As the Gt value increased, the turbidity removal ratio increased. Turbidity removed over 20 % during the filtration process.
 Keywords
DOC;THM;Molecular Weight Distribution;Gt;
 Language
English
 Cited by
1.
Impact of Water Quality on the Formation of Bromate and Formaldehyde during Water Ozonation,;;

한국환경보건학회지, 2007. vol.33. 5, pp.441-450 crossref(new window)
2.
Estimation of Dissolved Organics Characteristics and THM Formation from Different Organics Sources Based on Molecular Weight Distribution,;;;

한국환경보건학회지, 2007. vol.33. 2, pp.158-165 crossref(new window)
 References
1.
Amy, G. L., P. A. Chadik and Z. K. Chowdhry, 1987, Developing Models for Predicting Trihalomethane Formation Potential and Kinetics, J. of AWWA, 77(7), 89-97

2.
Summers, R. S. and P. V. Roberts, 1988, Activated Carbon Adsorption of Humic Substances II - Size Exclusion and Electrostatic Interactions, J. of Colloid and Interface Sci., 122(2), 382-397 crossref(new window)

3.
Collins, M. R., Gray, A. and Cornelius, S., 1986, Molecular Weight Distribution, Carboxy Acid and Humic substance, Contents of Aquatic Oganic matter - Implications for Removal during Water Treatment, Environ. Technol., 20(10), 1028-1032 crossref(new window)

4.
Sandrucci, P., G. Merlo, G. Genon and L. Meucci, 1995, PAC Activity vs By-product Precursors in Water Disinfection, Wat. Res., 29(10), 2299-2308 crossref(new window)

5.
Park, H. S., 1998, Optimization of Water Treatment Chemicals Use for the Enhancement of Coagulation and Flocculation Processes in Water Treatment Plant, J. KSEE, 20(10), 1435-1447

6.
Amy, G. L., L. Tan and M. K. Davis, 1991, The Effect of Ozonation and Activated Carbon Adsorption on Trihalomethane Speciation, Wat. Res., 25(2), 191-202 crossref(new window)

7.
Hooper and Stuart M., 1996, Improving GAC Performance by Optimized Coagulation, J. AWWA, 88, 107-120

8.
Baes, A. U. and P. R. Bloom, 1990, Fulvic Acid Ultraviolet-Visible Spectra: Influence of Solvent and pH, J. of Soil Sci. Soc. Ame., 54, 1248-1254 crossref(new window)

9.
Myung, B. T., D. S. Woo, J. H. Choi, Y. J. Lee and S. H. Nam, 2001, Removal of Natural Organic Matter by Mixing Coagulants in Coagulation Process, Kor. J. Env. Hlth, 27(2), 60-66

10.
Eaton, A., 1995, Measuring UV-Absorbing Organics-A Standard Method, J. AWWA, 87, 86-90

11.
Edzwald, J. K., 1993, Coagulation in Drinking Water Treatment - Particles, Organics and Coagulations, Wat. Sci. Tech., 27(11), 21-35

12.
Lee, Y. J., H. Lee and S. H. Nam, 1999, Trihalomethane Formation by Chlorine Dioxide in Case of Water Containing Bromide Ion, Kor. J. Env. Hlth., 25(3), 83-88

13.
Kim, H. T., H. Lee, Y. J. Lee and S. H. Nam, 1997, Behaviors of LAS in Reactions with Free Chlorine, Kor. J. Env. Hlth. Soc., 23(2), 106-114

14.
AWWA, APHA and WPCF, 1995, Standard Methods for Examination of Water and Wastewater, 19th ed., American Public Health Assoc., Washington D.C., 6.61-6.66

15.
Amirtharajah, A. and M. M. Kirk, 1982, Rapid Mix Design for Mechanisms of Alum Coagulation, J. AWWA, 74(4), 210-216

16.
Jeong, K. Y., 1998, Characteristics of Dissolved Organics Based on Their Origins, Master Thesis, KonKuk University, 32-38