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Fig. 6 | Biotechnology for Biofuels and Bioproducts

Fig. 6

From: d-Lactic acid production from agricultural residues by membrane integrated continuous fermentation coupled with B vitamin supplementation

Fig. 6

Schematic diagram of the membrane integrated continuous fermentation system. (1) N2 storage tank; (2) Feed medium storage tank; (3) Neutralizer reservoir; (4) Fermentor; (5) Hollow-fiber microfiltration module; (6) Product storage tank; (7) Cleaning solution tank; (8) Flow meter; (9) Medium feed control pump; (10) Alkali feed control pump; (11) Recirculation pump; (12) Feed pressure indicator; (13) Retentate pressure indictor; (14) Retentate flow rate indicator; (15) Permeate control pump; (16) Backwash pump; (17) Level sensor; (18) pH sensor; (19) Control host; (20) Sampling (analysis of residual sugars and d-lactic acid); (21) Sampling (analysis of cell growth)

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