s 0.2 micron Membraloxo Backflush frequency =5 minutes Backflush duration 1 second 1500 1000 Process Continuation 500 0 05101520253035404550556065707580 Time. min. igure 20. Effect of backpulsing on flux stability with 0.2 mm microporous alumina membrane328 Fermentation and Biochemical Engineering Handbook s: 0 0 0 0 Ln 0 0 0 m c 0 7 v) N 0 N v) m 0 m Ln T 0 w- Ln m 0 Ln m 3 CD Ln E h Ln Q 0 0