| 摘要 |
PROBLEM TO BE SOLVED: To provide an effective technology which realizes high-level water quality control in a water treatment device comprising a purification treatment part for performing the purification treatment of water to be treated, and a disinfection treatment part for performing the disinfection treatment of the water treated in the purification treatment part. SOLUTION: A water quality detection sensor 200 immersed in a disinfection tank 190 at the most downstream part of the water treatment device 100 detects the quality of water discharged from the disinfection tank 190 to the outside of the water treatment device 100, and detects the occurrence of biofilm adhesion to the detection part of the water quality detection sensor 200 caused by deterioration of disinfection performance in the disinfection tank 190. COPYRIGHT: (C)2006,JPO&NCIPI
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