Local Mixing Intensity Measurements for the Food Industry and Biotechnology

Juris Vanags and Uldis Viesturs*

Latvian State Institute of Wood Chemistry, 27 Dzerbenes, LV-1006 Riga, Latvia

Article history:

Received July 10, 2000
Accepted October 26, 2000

Key words:

mixing, local turbulence, SIMD, electromagnetic drive, dosage, process control


The application of local mixing in food industry and biotechnology is demonstrated. Using a Stirring Intensity Measuring Device, SIMD-f3 and SIMD-s1, specially designed for this purpose, optimum mixing in a bioreactor, loading-flooding transition in the aeration process, and the local mixing level were controlled. The new potentialities of applying an SIMD-type unit offer its connection with a motor-driven frequence inverter.

*Corresponding author: 
                                               ++371 7550 635

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