Dear sea friends, what pump should be used for a fermentation broth with a viscosity of 3 MPa?
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I’ve been conducting fermentation experiments recently; the viscosity of the fermentation broth is 3 MPa. There are cells present in the broth, and it’s an anaerobic fermentation process, so shear forces should be avoided as much as possible. I was wondering if any of you have any good recommendations? Manual flower scattering
Push on your own; don’t sink too much
Pneumatic diaphragm pump, with no shearing action.
Pneumatic diaphragm pumps will introduce air, right? We are using anaerobic fermentation. . .
I’d like to ask everyone again: my viscosity isn’t considered high, is it?
For pneumatic diaphragm pumps, if no gas is entering, you can contact me for details
Laboratories use peristaltic pumps, which make metering and control very convenient. It can handle high viscosity, but it’s best to avoid hard particles as they can scratch the silicone tube. For high flow rates, plunger pumps or diaphragm pumps are used; both of these types have almost no shear effect.
Any positive displacement pump relies on \"space separation,\" and shear is inevitable. The only one without shear is the centrifugal pump
Its viscosity is slightly higher than that of water, but not by much
This post was last edited by 3983596_FPPZ on 2021-10-14 at 18:21. The viscosity of the medium is not very high; however, due to the high speed of the centrifugal pump, there is inevitably impact, collision, and shear on the material. It is recommended to use positive displacement pumps with lower speeds, such as diaphragm pumps, rotor pumps, and hose pumps. To determine the most suitable option, more parameters are needed, such as flow rate, pressure, temperature, corrosivity, net positive suction head, as well as the conditions under which the pump will be used.