Flux, tangential flow filtration

Antifoam concentration, effect on flux, tangential flow filtration, 6l,63f... 

Antifoam type, effect on flux, tangential flow filtration, 6l,62f Assays, largomycin F-II, 135,137 Axial dispersion, estimation of transfer units, 116... 

Figure 2. Tetrahymena concentration by tangential flow filtration. Batch size 100 1. Area 15 ft (1.39 m ). Circulation rate 6.0 1/min. Pin/ out 8/6. Final volume 4.5 1. Concentration factor 22. Flux 0.79 l/m min. Recovery initial...

Figure 2.14 Montage of DVO images collected during tangential flow filtration of 5 tm, 10 tm and 20 tm latex particles on an Anopore membrane with 0.02 tm pores. The two rows of images on the top and bottom were collected with a permeate flux (flowing into the page) of 200Lm h and...

Today most vims filtration is conducted in normal flow mode (Bohonak and Zydney, 2005). The main advantage of tangential-flow filtration is the ability to suppress cake formation and the consequent decrease in permeate flux. This results in much larger feed volumes being filtered (capacity) before the module needs to be cleaned. 

Pioch et al. [46] evaluated the effect of tangential velocity on the permeate flux in the filtration of crude sunflower oil by a polymeric membrane. The speed of 3.5 m s gets a significant increase on the permeate flux, compared to the speed of 2.5 m s. However, at 4.5 m s, the flow curve showed no increase compared to the intermediate speed. These authors attributed these results to the fact that the polarized layer of solutes has reached a threshold thickness at 3.5 m s. In their study, it is demonstrated that a limited increase in the flow can be obtained by increasing the tangential velocity. 

Tangential filtration is distinguished from conventional filtration, also known as dead-end filtration, by the fact that the main flow is tangential to the membrane surface (Figure 11.11). In dead-end filtration a fast drop in the permeate flux is observed due to cake formation over the filter... 

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