TREATING AGENT AND TREATING METHOD OF TRIHALOMETHANE PRECURSOR CONTAINING WATER

摘要

PROBLEM TO BE SOLVED: To utilize ion exchange resin that a pore diameter is large and narrow pores are developed instead of the conventional coal of low strength, to increase the adsorbed quantity of a trihalomethane precursor, and to effectively remove the trihalomethane precursor by composing a treating agent of active carbide of porous type ion exchange resin. ;SOLUTION: As a treating agent for a trihalomethane precursor that is organic matter which is reacted with chlorine in water such as river water to generate thihalomethane, active carbide of porous type ion exchange resin is used. At this time, as the porous ion exchange, no limitation is made, in particular, chelate resin or resin without exchange groups may be used. When heating the porous type ion exchange resin to subject it to active carbonization, after the porous type ion exchange resin is fired to carbonize it in oxygen-poor atmosphere, for example, at temperatures of 300-900°C, further, it is subjected to reactivation treatment in reactivation gas consisting of LPG combustion gas or the like, for example, at a temperatures of 850-1100°C. In this way, active carbon as the treating agent is obtained.;COPYRIGHT: (C)2000,JPO