SCALE DETECTION DEVICE AND METHOD FOR CONCENTRATING DEVICE, AND WATER RECLAMATION TREATMENT SYSTEM

摘要

This scale detection device for a concentrating device comprises: a reverse osmosis membrane device (13) that is a concentrating device having a reverse osmosis membrane (13a), which is a filter membrane for concentrating salt from water to be treated (11), which includes at least calcium sulfate, and obtaining fresh water (12); and a scale detection unit (15) that is provided in a branch line (L14) branching from a concentrated water line (L13) that discharges concentrated water (14) in which salt has been concentrated and that has a detection membrane (15a) for further concentrating the salt from the concentrated water (14) and obtaining detection fresh water (16) as well as detecting the absence or presence of scale component deposition in the concentrated water (14).