Abnormality determining method of dipping type membrane separator and abnormality determining device of dipping type membrane separation apparatus

摘要

Problem to be solved: to provide an abnormality determination method of a dipping type film separating apparatus capable of properly judging whether or not an abnormality has occurred in consideration of the history of a dipping type membrane separating apparatus which changes in time series.A method of judging an abnormality of a dipping type membrane separation apparatus.Based on the measured values of the inter membrane pressure difference and the permeation liquid flow rate of the immersion type membrane separator which is changed in time seriesThe modeling process of the time series model which generates the time series model with the difference between membrane pressure of the immersion type membrane separator was made.Characteristic values calculated by the time series model from measured values of characteristic values and permeable liquid flowCharacteristic values measured in the immersion type membrane separator.Based on the comparison, an abnormality determining process for judging whether or not an abnormality has occurred in the immersion type membrane separator is.Diagram