Disinfection and Antimicrobial Processes

Kuo, Jeff; Gallucci, Joanna L.

doi:10.1002/chin.200621274

Cited by 1 publication

(1 citation statement)

References 55 publications

(54 reference statements)

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“…However, chlorine concentration decreases with time because of its decay. By-product concentrations also vary because of chlorine decay within the water distribution systems (Kuo and Abustan, 2009). Because of limited knowledge about chlorine reaction kinetics in water distribution systems, most modeling for chlorine decay has been based on the following reaction:…”

Section: Introductionmentioning

confidence: 99%

Second‐Order Chlorine Decay and Trihalomethanes Formation in a Pilot‐Scale Water Distribution Systems

Yang²,

J³

et al. 2012

Water Environment Research

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It is well known that model-building of chlorine decay in real water distribution systems is difficult because chlorine decay is influenced by many factors (e.g., bulk water demand, pipe-wall demand, piping material, flow velocity, and residence time). In this paper, experiments were run to investigate the kinetic model of chlorine decay and the formation model of trihalomethanes (THMs) in pilot-scale water distribution systems. Experimental results show that the rate constants of chlorine decay, including wall decay and bulk decay, increasing with temperature. Moreover, the kinetic model of chlorine decay and the formation model of THMs describe experiment data of pilot-scale water distribution systems. The effect of different piping material on chlorine decay and THMs formation were also investigated. The rate constants of chlorine decay are ranked in order: stainless steel pipe, ductile iron pipe, and last, polyethelene pipe because wall decay is the largest in stainless steel pipe than that in other piping material. Correspondingly, the rate of THMs formation follows the order of stainless steel pipe, ductile iron pipe, and last, polyethelene pipe because of less chlorine in bulk water reacting with the trihalomethane formation potential (THMFP). Water Environ. Res., 84, 656 (20t2).

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Section: Introductionmentioning

confidence: 99%