What is the most commonly used bioreactor?
There are many types of bioreactors in this field, so what are the most commonly used bioreactors? How do you choose a suitable bioreactor? This article explains and analyzes it, hoping to help you.
Stirred Tank BioReactor (STR):
The stirred tank bioreactor uses a stirrer to mix nutrients such as culture medium and keep cells or microorganisms evenly distributed. It is often used to cultivate large-scale cells, microorganisms or enzymes. It is widely used in biopharmaceuticals, food, chemical industries and other fields.
Such as: hydrocarbon-rich industrial wastewater treatment; pharmaceutical industry; fermentation process; biological process, such as cell culture.
Air-lift BioReactor:
The gas-lift bioreactor uses the power of gas injection and the density difference between the gas-liquid mixture and the liquid to circulate the gas and liquid. This can enhance mass transfer, heat transfer and mixing, and its types are diverse. For example, in the cultivation of some microorganisms or plant cells, it uses the rising airflow of gas to circulate the reaction liquid to maintain good gas-liquid contact and mixing effects.
Mainly used in the cultivation of sensitive organisms/cells and single-cell protein production; methanol production; wastewater treatment; aerobic biological treatment, etc.
Membrane Bioreactor (MBR):
Membrane Bio-Reactor (MBR) is a new type of wastewater treatment system that organically combines membrane separation technology with biological treatment technology. The membrane component replaces the terminal secondary sedimentation tank of traditional biological treatment technology, maintains a high concentration of activated sludge in the bioreactor, increases the organic load of biological treatment, thereby reducing the footprint of sewage treatment facilities and reducing the amount of residual sludge by maintaining a low sludge load.
It is mainly used for water treatment and wastewater treatment. It combines biodegradation and membrane filtration technology to effectively remove organic pollutants.
It is commonly used in environmental engineering, especially in the field of wastewater treatment.
Fied Bed Bioreactor:
It refers to a bioreactor filled with granular solid catalysts or solid reactants to form a stacked bed of a certain height. Gas or liquid materials flow through the static fixed bed through the gaps between particles to achieve a heterogeneous reaction process.
It is mainly used for the cultivation of immobilized microorganisms or cells, usually used in some special fermentation processes, or enzyme reactions, etc. By immobilizing cells or microorganisms, it can be operated stably in the reactor for a long time. Specific examples include immobilized/specific biocatalysts; wastewater treatment; catalytic reactors; fermenters; can handle high-density cultures
Photo Bioreactors
Photo Bioreactors use photosynthetic organisms to convert sunlight into usable energy, which can then be collected and used to power a variety of different applications, while incorporating mechanical agitators or bubbling mechanisms to mix the culture medium and allow air to pass through the culture medium. Photobioreactors rely entirely on solar energy, making them very environmentally friendly and efficient. Photobioreactors typically have light sources such as LEDs or fluorescent bulbs to provide enough light for photosynthesis and culture medium.
Photobioreactor applications, pharmaceutical industry; biofuel production; cultivation of algae and cyanobacteria; bioplastics; food additives; wastewater treatment (remediation); carbon capture; aerobic and anaerobic processes, etc.
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