Reoxygenation Rate for Airlift Inner Circulation Reactor

Ke Wu Pi; Min Xia; Shi Shi; Qu Xiao

doi:10.4028/www.scientific.net/AMR.726-731.1926

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Reoxygenation Rate for Airlift Inner Circulation...

Reoxygenation Rate for Airlift Inner Circulation Reactor

Abstract:

Airlift inner circulation reactor (AICR) consisting of beaker and built-in aeration tank was introduced in this paper. The Dissolved oxygen recovery (R_DO) was highly influenced by the ratios of the height of built-in aeration tank to the height of liquid level in reactor (R_h/H), the diameter of built-in aeration tank to the diameter of the reactor (R_d/D) and aeration rate (Q_N). Average R_DO of 24.25 m.gm^-3.s^-s and DO concentration of 8.97mg.l^-1 were obtained at R_d/D=0.47, R_h/H=0.68 and Q_N=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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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

1926-1929

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.1926

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Online since:

August 2013

Authors:

Ke Wu Pi*, Min Xia, Shi Shi, Qu Xiao

Keywords:

Airlift Inner Circulation Reactor (AICR), Bioleaching, Dissolved Oxygen (DO), Dissolved Oxygen Recovery ( R_DO)

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* - Corresponding Author

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