During the cultivation of Chlorella vulgaris in a 500-liter tubular photobioreactor, substantial biomass sedimentation leads to the formation of a biofilm. What steps could be taken to address this issue?
During the cultivation of Chlorella vulgaris in a 500-liter tubular photobioreactor, substantial biomass sedimentation leads to the formation of a biofilm. What steps could be taken to address this issue?
There are several steps that can be taken to address the issue of biomass sedimentation and biofilm formation during the cultivation of Chlorella vulgaris in a 500-liter photobioreactor:
These are just a few examples of the steps that can be taken to address the issue of biomass sedimentation and biofilm formation during the cultivation of Chlorella vulgaris in a 500-liter photobioreactor. The exact approach will depend on the specific circumstances of the cultivation and the results of the experimentation.
There are several things that can be done to prevent the settling of microalgae in a tubular photobioreactor. Here are a few suggestions:
1/ Control the pH: Microalgae require specific pH to grow and thrive depending on the strain used, if it is chlorella sp. please keep pH around 6.5-7.5, since this strain doesn't prefer alkaline pH.
If the pH is not optimal, it can cause the microalgae to settle or clump together.
2/ increasing the flow rate or adding aeration to the system. This helps keep the microalgae in suspension, preventing settling, and keep in mind that once your suspension become dense , this problem will certainly occur .
3/ you can also use antifoaming agents as an effective way to prevent the settling of microalgae in a tubular photobioreactor .
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