Balancing Disinfection Efficiency and THM Formation during Chlorination: Theoretical Considerations

Pen Chi Chiang; E. E. Chang; K. O. Ya-Wen; Jie Chung Lou

Balancing Disinfection Efficiency and THM Formation during Chlorination: Theoretical Considerations

Pen Chi Chiang, E. E. Chang, K. O. Ya-Wen, Jie Chung Lou

Taipei Medical University

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

A mathematical model has been developed to predict disinfection efficiency and trihalomethane (THM) formation during water chlorination. The model incorporates chlorine dose, total organic carbon (TOC) concentration, contact time, and geometric configuration of the chlorination chamber. Results indicate that the disinfection efficiency can be better controlled by modifying the geometric configuration of the chlorine contactor. In contrast, geometric configuration plays an insignificant role in controlling THM formation. The application of chlorine at about 1.0 mg/L appears to be the most economic and logical dose for the control of THM formation and the disinfection efficiency of the Liu-Du water treatment plant under the operational conditions of conventional chlorination practices.

Original language	English
Pages (from-to)	892-898
Number of pages	7
Journal	Canadian Journal of Chemical Engineering
Volume	75
Issue number	5
Publication status	Published - 1997

Keywords

Chlorine contact chamber
Disinfection
Dispersion
Trihalomethanes (thms)

ASJC Scopus subject areas

Polymers and Plastics

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Chiang, P. C., Chang, E. E., Ya-Wen, K. O., & Lou, J. C. (1997). Balancing Disinfection Efficiency and THM Formation during Chlorination: Theoretical Considerations. Canadian Journal of Chemical Engineering, 75(5), 892-898.

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abstract = "A mathematical model has been developed to predict disinfection efficiency and trihalomethane (THM) formation during water chlorination. The model incorporates chlorine dose, total organic carbon (TOC) concentration, contact time, and geometric configuration of the chlorination chamber. Results indicate that the disinfection efficiency can be better controlled by modifying the geometric configuration of the chlorine contactor. In contrast, geometric configuration plays an insignificant role in controlling THM formation. The application of chlorine at about 1.0 mg/L appears to be the most economic and logical dose for the control of THM formation and the disinfection efficiency of the Liu-Du water treatment plant under the operational conditions of conventional chlorination practices.",

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AU - Ya-Wen, K. O.

AU - Lou, Jie Chung

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AB - A mathematical model has been developed to predict disinfection efficiency and trihalomethane (THM) formation during water chlorination. The model incorporates chlorine dose, total organic carbon (TOC) concentration, contact time, and geometric configuration of the chlorination chamber. Results indicate that the disinfection efficiency can be better controlled by modifying the geometric configuration of the chlorine contactor. In contrast, geometric configuration plays an insignificant role in controlling THM formation. The application of chlorine at about 1.0 mg/L appears to be the most economic and logical dose for the control of THM formation and the disinfection efficiency of the Liu-Du water treatment plant under the operational conditions of conventional chlorination practices.

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