Bioreactor Types Pdf
Various types of bioreactors are described from the energy input as well as mechanically, circulation pump and. Native Instruments B4ii Keygen Software. Bioreactors, known in general as bioreactor. Full-text (PDF) This chapter presents bioreactors models applied to bioprocesses including submerged (stirred tank reactor, bubble column, air-lift, membrane. Download De Jogos De Ps1 Formato Iso.
ADVERTISEMENTS: This article throws light upon the six types of bioreactors used in bioprocess technology. The six types are: (1) Continuous Stirred Tank Bioreactors (2) Bubble Column Bioreactors (3) Airlift Bioreactors (4) Fluidized Bed Bioreactors (5) Packed Bed Bioreactors and (6) Photo-Bioreactors. Continuous Stirred Tank Bioreactors: A continuous stirred tank bioreactor consists of a cylindrical vessel with motor driven central shaft that supports one or more agitators (impellers). The shaft is fitted at the bottom of the bioreactor (Fig. The number of impellers is variable and depends on the size of the bioreactor i.e., height to diameter ratio, referred to as aspect ratio. The aspect ratio of a stirred tank bioreactor is usually between 3-5. However, for animal cell culture applications, the aspect ratio is less than 2.
The diameter of the impeller is usually 1/3 rd of the vessel diameter. The distance between two impellers is approximately 1.2 impeller diameter. Different types of impellers (Rustom disc, concave bladed, marine propeller etc.) are in use. ADVERTISEMENTS: In stirred tank bioreactors or in short stirred tank reactors (STRs), the air is added to the culture medium under pressure through a device called sparger. The sparger may be a ring with many holes or a tube with a single orifice.
The sparger along with impellers (agitators) enables better gas distribution system throughout the vessel. The bubbles generated by sparger are broken down to smaller ones by impellers and dispersed throughout the medium. This enables the creation of a uniform and homogeneous environment throughout the bioreactor. Advantages of STRs. ADVERTISEMENTS: There are many advantages of STRs over other types. Convert Dmg To Iso Virtualbox.