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baffles are sometimes placed in the draft tube. TOWER LOOP AIRLIFT FERMENTER. Tower loop airlift fermenters, also known as external loop airlift fermenters. Air Lift Fermenters, and Air Lift Bioreactors for BioProcessing – Microbial Cell Culture or Fermentation. Air lift bioreactors are an alternative to mechanically. In this article a modeling of a draft-tube airlift fermenter (ALF) based on perfect back- Since airlift fermenters (ALF) are characterized by large oxygen trans-.

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These include the efficient gas transfer to growing cells, good mixing of the contents and flexible operating conditions, besides the commercial availability of the bioreactors.

Bioreactors Types: 6 Types of Bioreactors used in Bioprocess Technology

The different types of photo-bioreactors are depicted in Fig. It is also necessary to ensure that the suspended solid particles are not too light or too dense too light ones may float whereas to dense ones may settle at the bottomand they are in a good suspended state.

They ensure a controlled liquid flow in a recycle system by pumping. The organisms grow during day light while the products are produced during night. The shaft is fitted at the bottom of the bioreactor Fig. The sparger along with impellers agitators enables better gas distribution system throughout the vessel.

Bioreactors and fermenters

There are two types of airlift bioreactors. Different types of impellers Rustom disc, concave bladed, marine propeller etc. Each one of the bioreactors is fitted with valves and they are connected by a transfer tube and pump Fig. The dispersion flows up airluft riser zone while the down flow occurs in the down comer. However, for animal cell culture applications, the aspect ratio is less than 2. The array of tubes or flat panels constitute light receiving systems solar receivers. Two-stage airlift bioreactors are used for airlifft temperature dependent formation of products.


Bioreactors Types: 6 Types of Bioreactors used in Bioprocess Technology

Fluidized bed bioreactor is comparable to bubble airluft bioreactor except the top position is expanded to reduce the velocity of the fluid. Our dedication to you doesn’t end with the supply of your equipment.

These bioreactors are suitable for use to carry out reactions involving fluid suspended biocatalysts such as immobilized enzymes, immobilized cells, and microbial flocs. Microalgae and cyanobacteria are normally used. Because of poor mixing, it is rather difficult to control the pH of packed bed bioreactors by the addition of acid or alkali. Aidlift nutrient broth flows continuously over the immobilised biocatalyst.

Bioreactors and Fermenters – Electrolab

Types of Recombinant Vaccines: These reactors can be suitably modified to suit the requirements of different fermentations. In general, the performance of the airlift bioreactors is dependent on the pumping injection of fermdnters and the liquid circulation. This article throws light upon the six types of bioreactors used in bioprocess technology.

The number of impellers is variable and depends on the size of the bioreactor i. While the flow of the fluid can be upward or downward, down flow under gravity is preferred.

The solids used may be porous or non-porous gels, and they may be compressible or rigid in nature. A high hydrostatic pressure generated at the bottom of the reactor increases the solubility of O 2 airllft the medium.


The six types are: The design of the fluidized bioreactors expanded top and narrow reaction column is such that the solids are retained in the reactor while the liquid flows out Fig. Certain important compounds are produced by employing photo-bioreactors e.

The sparger may be a ring with many holes or a tube with a airkift orifice. This is a question and answer forum for students, teachers and general visitors for exchanging articles, answers and notes.

The advantage with tower bioreactor is that it has high aeration capacities without having moving parts. This enable good efficiency of bioprocessing.

This enables the creation of a uniform and homogeneous environment throughout the bioreactor. A continuous stirred tank bioreactor consists of a cylindrical vessel with motor driven central shaft that supports one or more agitators impellers.

Airlift fegmenters The FerMac Fermentfrs Lift vessel is specifically designed for work with cell lines which are fragile so that any type of mechanical impellor may shear them. These bioreactors are simple in design, with volume and circulation at a fixed rate for fermentation.

The products obtained in the packed bed bioreactor are released into the fluid and removed.