Skip to main content
SpringerLink
Log in

Simulation of liquid-gas flow in full-scale Caroussel oxidation ditch with surface aeration

  • Published:
Journal of Central South University Aims and scope Submit manuscript

Abstract

A model for liquid-gas flow (MLGF), considering the free movement of liquid surface, was built to simulate the wastewater velocity field and gas distribution in a full-scale Caroussel oxidation ditch with surface aeration. It was calibrated and validated by field measurement data, and the calibrated parameters and sections were selected based on both model analysis and numerical computation. The simulated velocities of MLGF were compared to that of a model for wastewater-sludge flow (MWSF). The results show that the free liquid surface considered in MLGF improves the simulated velocity results of upper layer and surface. Moreover, distribution of gas volume fraction (GVF) simulated by MLGF was compared to dissolved oxygen (DO) measured in the oxidation ditch. It is shown that DO distribution is affected by many factors besides GVF distribution.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. COCKX A, DO-QUANG Z, AUDIC J M, LINÉ A, ROUSTAN M. Global and local mass transfer coefficients in waste water treatment process by computational fluid dynamics [J]. Chemical Engineering and Processing, 2001, 40(2): 187–194.

    Article  Google Scholar 

  2. FLUENT INCORPORATED. FLUENT 6.1 User’s guide [M]. Fluent Incorporated, 2003: 231–237.

  3. FAYOLLE Y, COCKX A, GILLOT S, ROUSTAN M, HÉDUIT A. Oxygen transfer prediction in aeration tanks using CFD [J]. Chemical Engineering Science, 2007, 62(24): 7163–7171.

    Article  Google Scholar 

  4. MOULLEC Y L, POTIER O, GENTRIC C, LECLERC J P. Flow field and residence time distribution simulation of a cross-flow gas-liquid wastewater treatment reactor using CFD [J]. Chemical Engineering Science, 2008, 63(9): 2436–2449.

    Article  Google Scholar 

  5. OLMOS E, GENTRIC C, VIIAL C, MIDOUX N. Numerical simulation of multiphase flow in bubble column reactors: Influence of bubble coalescence and break-up [J]. Chemical Engineering Science, 2001, 56(21/22): 6359–6365.

    Article  Google Scholar 

  6. SPICKA P, DIAS M M, LOPES J C B. Gas-liquid flow in a 2D column: Comparison between experimental data and CFD modeling [J]. Chemical Engineering Science, 2001, 56(21/22): 6367–6383.

    Article  Google Scholar 

  7. VERMANDE S, SIMPSONA K, ESSEMIANIA K, FONADE C, MEINHOLD J. Impact of agitation and aeration on hydraulics and oxygen transfer in an aeration ditch: Local and global measurements [J]. Chemical Engineering Science, 2007, 62(9): 2545–2555.

    Article  Google Scholar 

  8. KRISHNA R, URSEANU M I, van BATEN J M, and ELLENBERGER J. Rise velocity of a swarm of large gas bubbles in liquids [J]. Chemical Engineering Science, 1999, 54(2): 171–183.

    Article  Google Scholar 

  9. PARKINSON L, SEDEV R, FORNASIERO D, RALSTON J. The terminal rise velocity of 10–100μm diameter bubbles in water [J]. Journal of Colloid and Interface Science, 2008, 322(1): 168–172.

    Article  Google Scholar 

  10. SIMONNET M, GENTRIC C, OLMOS E, MIDOUX N. Experimental determination of the drag coefficient in a swarm of bubbles [J]. Chemical Engineering Science, 2007, 62(3): 858–866.

    Article  Google Scholar 

  11. TALAIA M A R. Terminal Velocity of a Bubble Rise in a Liquid Column [C]// World Academy of Science, Engineering and Technology, 2007, 28: 264–268.

    Google Scholar 

  12. GUO Li-sha. Wastewater-Sludge two-phase model and liquid-gas two-phase model of carrousel oxidation ditch [D]. Chongqing College of Resources and Environment Science: Chongqing University, 2010. (in Chinese)

  13. GUO Li-sha, ZHANG Dai-jun, XU Dan-yu, CHEN Yuan. An experimental study of low-concentration sludge settling velocity under turbulence condition [J]. Water Research, 2009, 43(9): 2383–2390.

    Article  Google Scholar 

  14. ZHANG Dai-jun, GUO Li-sha, XU Dan-yu, CHEN Yuan. Simulation of component distributions in a full-scale carrousel oxidation ditch: A model coupling sludge-wastewater two-phase turbulent hydrodynamics with bioreaction kinetics [J]. Environmental Engineering Science, 2010, 27(2): 159–168.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Environmental Science, Chongqing University, Chongqing, 400030, China

    Zhen-liang Li  (李振亮) & Dai-jun Zhang  (张代钧)

  2. Chongqing Education College, Chongqing, 400067, China

    Zhen-liang Li  (李振亮)

  3. Department of Civil Engineering, Laval University, Québec, G1V0A6, Canada

    Li-sha Guo  (郭丽莎)

  4. Key Laboratory for the Resources Exploitation and Environmental Disaster Control Engineering in Southwest China (Chongqing University), Ministry of Education, Chongqing, 400030, China

    Dai-jun Zhang  (张代钧)

  5. Tianjin Academy of Environmental Science, Tianjin, 300191, China

    Dan-yu Xu  (许丹语)

Authors
  1. Zhen-liang Li  (李振亮)
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Li-sha Guo  (郭丽莎)
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Dai-jun Zhang  (张代钧)
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Dan-yu Xu  (许丹语)
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Dai-jun Zhang  (张代钧).

Additional information

Foundation item: Project supported by Visiting Scholar Foundation of Key Laboratory of the Resources Exploitation and Environmental Disaster Control Engineering in Southwest China (Chongqing University), Ministry of Education, China

Rights and permissions

Reprints and permissions

About this article

Cite this article

Li, Zl., Guo, Ls., Zhang, Dj. et al. Simulation of liquid-gas flow in full-scale Caroussel oxidation ditch with surface aeration. J. Cent. South Univ. Technol. 19, 1615–1621 (2012). https://doi.org/10.1007/s11771-012-1184-1

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11771-012-1184-1

Key words

Search

Navigation