Biological fermentation background
Biofermentation engineering is an engineering technology that uses biological systems such as microorganisms, enzymes or cells to carry out fermentation processes to produce useful compounds or products.
The efficiency of the biological fermentation process is highly dependent on the correctness of the conditions. Only under stable and controlled conditions can the reproduction and harvest of microorganisms be optimal.
Therefore, during the entire biological fermentation process, appropriate conditions such as temperature, pH, dissolved oxygen, turbidity, temperature, flow rate and pressure need to be provided to ensure the growth of microorganisms and the synthesis of products.
Biological fermentation process
Biological fermentation monitoring indicators
1. Flow measurement:
In the biological fermentation process, oxygen (O2), carbon dioxide (CO2) and other gases are usually introduced to provide oxygen required for microbial growth and promote the fermentation process. At the same time, the concentration of carbon dioxide produced during the fermentation process is controlled to avoid adverse effects on microbial growth. Thermal gas mass flow meters or vortex flow meters are usually used to measure gas flow.
The nutrient solution required for the growth and reproduction of microorganisms can promote the growth and metabolism of microorganisms and improve the yield and quality of fermentation products. The bubbles generated by the metabolism of microorganisms during the fermentation process cause excessive foam in the fermentation liquid, affecting the fermentation effect. Defoamers can reduce the generation of foam, prevent foam overflow and gas mass transfer problems during the fermentation process. Electromagnetic flowmeters or Coriolis mass flowmeters are usually used to measure flow.
2. Water quality measurement:
pH: pH has an important influence on the growth and metabolism of microorganisms in the process of biological fermentation. By monitoring and adjusting the pH value of the fermentation broth, a suitable growth environment can be maintained to promote the growth of microorganisms and the synthesis of products.
Dissolved oxygen (DO): Dissolved oxygen is essential for the metabolism and growth of microorganisms in biological fermentation. By monitoring the concentration of dissolved oxygen, the supply of oxygen can be controlled to ensure that the microorganisms have enough oxygen for metabolic activities.
Turbidity: Turbidity reflects the transparency and cleanliness of the liquid. By monitoring turbidity, we can understand the impurity content in the liquid and take cleaning and treatment measures in time to ensure the normal progress of the fermentation process.
3. Temperature measurement:
Temperature is one of the important factors that affect the growth and metabolism of microorganisms. Different microorganisms have different adaptability to temperature. By monitoring and adjusting the temperature, the fermentation liquid is kept within a suitable temperature range, thereby promoting the growth and metabolic activities of microorganisms and improving the yield and quality of fermentation products. Sanitary thermal resistance temperature transmitters are usually used, which are accurate in temperature measurement and easy to install and clean.
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