Author(s)

S. Shiba, K. Ohtsuka, Y. Hirata & S. Yagi

Abstract

Production of toxic trihalomethane in chlorinated drinking water flowing through conduit * S. Shiba K. Ohtsuka Y. Hirata & S. Yagi ^Department of Chemical Engineering, Graduate School of Osaka University, Toyonaka, Osaka 560-8531, Japan Email: shiba@cheng. es. osaka-iL ac.jp ~ Department of Industrial and Systems Engineering, Setsunan University, Neyagawa, Osaka 572-8508, Japan Email: yagi@ise, setsunan. ac.jp Abstract Trihalomethane (THM) are chemical species commonly found in drinking water and are known to be toxic (mutant and carcinogenic). In order to estimate the pro- duction of THM species in chlorinated drinking water during the distribution to the consumers, a mathematical model considered Adin's reaction kinetics for THM production and the transport phenomena for pipe flow has been constructed. With use of the model, THM levels in drinking water flowing through conduits have been simulated numerically. The results of numerical

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