New Biox^® Agitator Concept Testwork

Abstract:

The paper describes the evaluation of a new mixer system developed in conjunction with SPX Process Equipment for the BIOX® process. Five different impeller combinations were tested with a Lightnin A315 A340 combination given the best results. With this combination the overall power per unit were reduced and less air were injected into the test reactors and still obtain the same and even better oxygen mass transfer compared to the commercially used A315 impeller.

• Periodical: Advanced Materials Research (Volumes 71-73)
• Pages: 461-464
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.71-73.461
• Online since: May 2009
• Authors: J.R. Van Deventer, Bernie Gigas
• Keywords: Oxygen Mass Transfer (k_La), Power per Unit Volume, Sulphide Sulphur Oxidation, Superficial Air Velocity, Tank Biooxidation

References

[1] ANSI/ASCE 2-91. Measurement of Oxygen Transfer in Clean Water, American Society of Civil Engineers (1992).

[2] B. Gigas and T. Post. Application of Batch Method kLa determination in mechanically agitated vessels, LIGHTNIN, Rochester, NY, (1998).

[3] J.Y. Oldshue. Fluid Mixing Technology, Chemical Engineering McGraw-Hill Pub. Co., (1983).