Bioreactors and Fermenters Suppliers Vadodara, Gujarat, India
Introduction:
The heart of the fermentation or bio-process technology is the Fermentor or Bioreactor.
A Bioreactor is a vessel in which a chemical process is carried out which involve biochemically active substances derived from such organisms. On the basis of mode of operation, a bioreactor may be classified as batch, fed batch or continuous. An example of continuous bioreactor is the chemo-stat.
Bioreactor design is a relatively complex engineering task.
1. Continuous Stirred Tank Bioreactor
In Continuous Stirred Tank Bioreactor, the contents of the vessel no
longer vary with time, this applies to the hold up of micro-organisms
and the concentration of the components of the medium in the fermentor.
2. Airlift Bioreactors
It usually contains an internal loop gas draft tube inside the column.
Gas sparging induces the liquid up flow with the suspended particles in
the inner draft tube. Subsequently, gas escapes from the top of the
bioreactor and the liquid with the suspended particles is led through
the gas-free down comer.
3. Fluidized Bed Bioreactors
The advantages of Fluid Bed Bio-Reactors (FBBR) are mainly Food, Pharmaceutical and Biological waste treatment sectors. In a fluidized Bio-Reactor, the particles can be much smaller andfine. During fluidization
operation, the bed expands to accommodate microbial growth. The high surface area forbiomass to grow results in high heat and mass transfer rates.This leads to isothermal and uniform mixing of particles tends to high concentration of active bio-mass per unit volume ofreactor. This process also elimination of pollutants and toxins
which are slows down the process.
4. Packed Bed Bioreactors
Packed-bed bioreactors
are tubular types of reactors which are packed with immobilized enzyme
or microbial cells as bio-catalysts. Different techniques such as
encapsulation, cross-linking, covalent bonding, and adsorption are
generally used for immobilization purposes.
6. Membrane Bioreactor
Membrane bioreactor (MBR) is the combination of a membrane
process like microfiltration or ultrafiltration with a biological
wastewater treatment process, the activated sludge process. It is now
widely used for municipal and industrial wastewater treatment.