4. Conclusion
To evaluate the performance of the misting system, water and real media
(MS, ½ MS, and B5) have been tested in mist bioreactor. The results
categorized as below:
- The electrical conductivity of all media increased with treated time.
- The ultrasonic effect caused an increase in surface tension of MS and
½ MS, while the pH of MS and ½ MS declined with ultrasonic treatment.
The inverse trends were observed for water and B5.
- The misting rate increased with increasing liquid height to an optimum
value of height then decreased, this optimum value of misting occurred
at the height ranged between 3 to 4 centimeters for all liquid which
tested in this study.
- The maximum and minimum values of the ultrasonic misting rate belonged
to MS (\(2.78\times 10^{-2}\ \text{gr}/s\)) and B5
(\(0.52\times 10^{-2}\text{gr}/s\)) at height 3 and 1 centimeters
above the piezoelectric, respectively.Acknowledgements
This research was supported by the Science and Technology Park of
University of Tehran (ID 94060) on the entrepreneurship program
“2nd Development Festival”. The authors gratefully
acknowledge the financial helps of the Science and Technology Park of
University of Tehran.