CLEANING METHOD AND APPARATUS FOR GENERATING ACTIVE CLEANING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a cleaning method which does not use a detergent, has enough cleaning power without affecting a raw material, and can reduce an environmental load. SOLUTION: An object W is cleaned by using a cleaning medium 21 activated by being contacted with a photocatalyst exposed to light. The active cleaning medium 21 is prepared by using a cleaning tank 31 coated with a photocatalyst layer 32 and an active medium generator 44 having a light source and the photocatalyst.