| 摘要 |
PROBLEM TO BE SOLVED: To provide a filtration system in which uniform generation of membrane clogging in a plurality of membrane modules is suppressed so that a chemical cost and a maintenance cost required for membrane exchange or the like can be reduced.SOLUTION: A filtration system 1 includes: a filtration unit group 2 including a plurality of filtration units 20 the load factor of each of which is changed continuously so that permeated water W2 can be produced from the water W1 to be treated; and a control part 32 for controlling a flow rate of the permeated water W2 to be produced by the filtration unit group 2 in accordance with a demand load being the flow rate of the required permeated water W2. Each of the plurality of filtration units 20 has membrane clogging level detection means 222 for detecting a level of membrane clogging of the filtration unit 20. The control part 32 has a priority order setting part 321 for setting the priority order of the filtration unit 20, the membrane clogging of which progresses much more, at a higher position on the basis of a level of membrane clogging of the filtration unit 20, the level detected by the membrane clogging level detection means 222.SELECTED DRAWING: Figure 1 |
