| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a membrane washing method for a membrane treating apparatus which can wash a membrane efficiently.SOLUTION: A membrane washing method in a membrane treating apparatus comprises: the step of adding vesicle, in which at least one kind of decomposition enzyme selected from the group composed of sugar decomposition enzyme, protein decomposition enzyme and N-acyl-L-homoserine lactone decomposition enzyme is included, to treated water; the step of causing the vesicle to contact a bio film formed on the film surface; and the step of ejecting the decomposition enzyme from the inner water phase of the vesicle.</p> |
