References

1. Y. Yang, J. Yang, J. Zuo, Y. Li, Sh. He, X. Yang, K. Zhang, Study on two operating conditions of a full-scale oxidation ditch for optimization of energy consumption and effluent quality by using CFD model, Water Res., 45 (2011) 3439–3452.
2. C.P. Grady, G.T. Daigger, H.C. Lim, Biological Wastewater Treatment, Marcel Dekker Inc., New York, 1999.
3. V. Diamantis, I. Papaspyrou, P. Melidis, A. Aivasidis, High aeration rate enhances flow stratification in full-scale oxidation ditch, Bioprocess. Biosyst. Eng., 33 (2010) 293–298.
4. L. Fan, D. Chen, Y. Liu, Zh. Wang, H. Shi, Model test and comparative analysis of flow in a carrousel oxidation ditch with one aerator, Res. Environ. Sci., 20 (2007) 97–101.
5. S. Simon, Prediction of mean circulation velocity in oxidation ditch, Environ. Technol., 22 (2001) 195–204.
6. D. Xu, D. Zhang, Zh. Chen, Sh. Yang, T. Zhang, Stereoscopic PIV measurement of 3-dimensional flow field in carrousel oxidation ditch reactor model, Chin. J. Appl. Mech., 25 (2008) 387–391.
7. L. Fan, D. Chen, Zh. Wang, Y. Liu, H. Shi, Study on flow characteristic of carrousel oxidation ditch, Tech. Equip. Pollut. Control, 07 (2006) 36–41.
8. Q. Liu, J. He, Influence of submerged impellers on oxidation ditch flow characteristics, Environ. Sci. Technol., 35 (2012) 93–98.
9. J. Zhao, L. Zhang, L. Liu, D. Cheng, Z. Zhe, M. He, H. Zhou, D. Zhu, Test and analysis on flow pattern of application scale oxidation ditch, Environ. Pollut. Control, 32 (2010) 21–24.
10. W. Wei, Y. Bai, Y. Liu, Optimization of submerged depth of surface aerators for a carrousel oxidation ditch based on large eddy simulation with Smagorinsky model, Water Sci. Technol., 73 (2016) 1608–1618.
11. Y. Liu, W. Wei, B. Lv, Research on optimal radius ratio of impellers in an oxidation ditch by using numerical simulation, Desal. Wat. Treat., 52 (2014) 2811–2816.
12. L. Luo, W. Li, R. Deng, Z. He, T. Wang, Simulation and analysis on three-dimensional flow field of integrative oxidation ditch, China Water Wastewater, 19 (2003) 15–18.
13. L. Yang, B. Hu, R. Fan, Numerical simulation of oxidation ditch and improvement methods of structural style, J. Zhengzhou Univ. (Eng. Sci.), 03 (2009) 114–117.
14. W. Wei, Z. Zhang, Y. Zheng, Y. Liu, Numerical simulation of additional guiding baffles to improve velocity distribution in an oxidation ditch, Desal. Wat. Treat., 57 (2016) 24257–24266.
15. L. Li, J. Ni, Three-dimensional three-phase model for simulation of hydrodynamics, oxygen mass transfer, carbon oxidation, nitrification and denitrification in an oxidation ditch, Water Res., 53 (2014) 200–214.
16. X. Guo, X. Zhou, Q. Chen, J. Liu, Flow field and dissolved oxygen distributions in the outer channel of the Orbal oxidation ditch by monitor and CFD simulation, J. Environ. Sci., 25 (2013) 645–651.
17. W. Wei, Y. Liu, B. Lv, Numerical simulation of optimal submergence depth of impellers in an oxidation ditch, Desal. Wat. Treat., 57 (2016) 8228–8235.
18. E. Jonhn Finnemore, B. Joseph Franzini, Fluid Mechanics with Engineering Applications, 10th ed., McGraw-Hill companies, Inc., New York, NY, USA, 2002.
19. Y. Liu, D. Li, W. Wei, B. Lv, J. Wei, Dimensional analysis and numerical simulation methods for the influence of impellers on the average velocity of flows in an oxidation ditch, Desal. Wat. Treat., 81 (2017) 26–32.