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Table 3 Overview of MBR tests and calculated metrics for the efficiency of the MBR process

From: Development of a hybrid bio-purification process of lactic acid solutions employing an engineered E. coli strain in a membrane bioreactor

Test No

Semi-continuous operation time (h)

AA max consumption rate (g/L/h)

Mean LA (g/L)

Net permeate rate

 (mL/h)

TMP max. drop (mbar)

MBR 1

87

0.0061

10.2 ± 0.8

11.30

− 72

MBR 2

72

0.0206

10.9 ± 0.9

25.27

− 37

MBR 3

64

0.0202

11.9 ± 0.4

17.11

− 38

MBR 4

12

0.0376

11.9 ± 0.3

66.67

− 32

MBR 5

12

0.0426

11.0 ± 0.2

76.67

− 29

MBR 6

12

0.0764

11.0 ± 0.8

76.67

− 39

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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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