<報文>水中トリハロメタンの加熱による除去

概要

論文の詳細を見る
"In order to remove the trace amounts of trihalomethane (THM) containing in tap water, the evaporation and removal rates have been studied from the point of heating method. THM used were such as chloroform(CHCl₃), bromodichloromethane(CHCl₂Br), dibromochloromethane(CHClBr₂) and tribromomethane(CHBr₃). The residual concentration changes with time in each aq. solution(initial concentration 400-500 ppm) contained one of four THM were measured at 40, 50, 60, 70 and 80℃, respectively. Moreover, the evaporation and removal rate formula of THM was introduced theoretically, it was found that mass transfer coefficient and the level height of aq. solution in the vessel were important parameters. the activation energy of evaporation was also obtained. in the case of removal of THM in drinking water, it would be preferable that the heating temperature is higher, and if same volume of aq. solution was used, the vertical cross section of vessel is larger."
横浜国立大学の論文