Question of the day!
Dear Algal Phycologists and Biotechnologists,
I have read the literature about different method of harvesting of Microalgae but I am confused which is the best method as there is no literature up-to-date calming the best harvesting method which is highly efficient. (Flocculation/Sedimentation/Filtration/ Floatation etc.)
Could you please let me know the highly efficient harvesting method up-to-date.
#research #algae #algartech #algaebiotechnology #microalgae #microalgas #cyanobacteria #diatom #algalbiofuel #phycology #phycobiotechnology #algaebiology #marinebiology #marinebiotechnolgy #biomass #energy #environment #engineering #chemistry #sustainability
Article Modern developmental aspects in the field of economical harv...
Article Renewable and Sustainable Energy Reviews xxx (xxxx) xxx Curr...
Article A review on flocculation as an efficient method to harvest e...
Dear Mohammad Sibtain Kadri, I hope these articles will be very helpful to find out the efficient harvesting method .
Thank you Dr. Gul Muhammad for these articles. Are you also working in the field of Algal Biotechnology/ Bioprocess Engineering
Mohammad Sibtain Kadri I had tried all the the methods you mentioned. According to my personal experience, I would recommend the use of flocculation to harvest large quantities of cultures.
However, if you require high harvest efficiency you can also try using centrifugation under low RPM (e.g. 3000RPM for 10 - 15 mins)
Dear Mohammad Sibtain Kadri , harvesting microalgae is not a straightforward process as such because it varies on numerous factors. One of the most important aspect to consider in this process is the dewatering of the microalgae slurries while limiting damage to the cells, biomass loss and limiting costs. All of the techniques you listed above are useful depending on the type of culture, volume of biomass production, the organism being cultured, desired end product, among many others but a crucial one would be costs involved (how far can investments be made and how much can be spent on energy driven processes).
A simple laboratory experiment might lead to the use of centrifugation directly as indicated by Aradhana Srisivasailam or a combination of them (sedimentation prior to centrifugation). However, as you scale up the production, the techniques then tend to be expensive due to energy consumption.
For my experiments, I make use of auto-flocculation followed by centrifugation at 5000 rpm for
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Physical Phenomena
- Luminescence
- Fluorescence