Interrelation among Liquid Velocity, Impeller Speed and Gas Flow Rate in the Stirred Airlift Reactor

Kawalec-Pietrenko, B.; Cisiak, Z.

doi:10.1002/1521-4125(200111)24:11<1133::aid-ceat1133>3.0.co;2-z

Cited by 3 publications

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References 7 publications

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“…The Dissolved oxygen recovery and dissolved oxygen distribution of reactor are two very important parameters for cultivating aerobic bacteria [6]. Other parameters, such as solids phase uniform distribution; the material used in the reactor and mass transfer should also be taken into account [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Reoxygenation Rate for Airlift Inner Circulation Reactor

Xia

Shi

et al. 2013

AMR

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Airlift inner circulation reactor (AICR) consisting of beaker and built-in aeration tank was introduced in this paper. The Dissolved oxygen recovery (RDO) was highly influenced by the ratios of the height of built-in aeration tank to the height of liquid level in reactor (Rh/H), the diameter of built-in aeration tank to the diameter of the reactor (Rd/D) and aeration rate (QN). Average RDO of 24.25 m.gm-3.s-s and DO concentration of 8.97mg.l-1 were obtained at Rd/D=0.47, Rh/H=0.68 and QN =1.0m3.m-3.min-1 for aerating 370s at 17°C. The total transferred oxygen in 4L deoxidized water reached 35.89mg, which had an increase by 11.15% than that of the traditional airlift reactor (AR). The DO concentration was 88.33-9.34mg.l-1 for AICR, but it’s only 7.71-8.58mg.l-1 for AR.

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