WATER TREATMENT METHOD AND WATER TREATMENT APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a water treatment method and a water treatment apparatus which can effectively control the generation of oxidative by-products without generation of excess ozone injection by grasping the concentration of the oxidative by-products in treated water after ozonization. SOLUTION: The concentration of the oxidative by-products contained in the ozonized water after ozone injection is measured by a measurement means 2, and an ozone injection amount and an ozone injection rate are controlled by an ozone injection amount control means 16 so that the concentration of the oxidative by-products is adjusted to the preset concentration or lower. Thereby, the amount of the generated oxidative by-products can be monitored and properly controlled. COPYRIGHT: (C)2006,JPO&NCIPI