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UDC 628.355

Gogina Elena, Gul’shin I. A.

Simulation of energy efficient biological wastewater treatment process in a circulation oxidation ditch

Summary

In the National Research Moscow State University of Civil Engineering comprehensive work is carried out in the field of simulating energy efficient wastewater treatment processes in circulation oxidation ditches. Notably, process flow schemes of removing nitrogen compounds from wastewater at low dissolved oxygen concentrations are considered. The study is aiming at the determination of optimal process modes of biomass activity under different conditions in the course of implementing experimental schemes. The summarized results of the second stage of the comprehensive study of energy efficient wastewater treatment in circulation oxidation ditches are presented: the efficiency dependency of simultaneous nitrification and denitrification at variable oxygen regimen has been determined, the mechanism of biomass adaptation and specific features of biomass bringing to the operating regime has been studied. The experimental plant model is described that provides for considering not only biochemical but also more detailed hydraulic specific features of the experimental process.

Key words

wastewater , biological treatment , nitrification , energy efficiency , denitrification , circulation oxidation ditch , easily oxidable organic substrate

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REFERENCES

1. Sun S.-P., Pellicer-Nacher C., Merkey B., Zhou Q., Xia S.-Q., Yang D.-H., Sun J.-H., Smets B. F. Effective Biological nitrogen removal treatment processes for domestic wastewaters with low C/N ratios: A review. Environmental Enginee­ring Science, 2010, v. 27, no. 2, pp. 111–126.
2. Gogina E., Gulshin I. The single-sludge denitri-nitrification system in reconstruction of wastewater treatment plants in the Russian Federation. Applied Mechanics and Materials, 2014, v. 580–583, pp. 367–2369.
3. Gogina E., Gulshin I. Simultaneous denitrification and nitrification in the lab-scale oxidation ditch with low C/N ratio. Procedia Engineering, 2015, v. 117, pp. 107–113.
4. Gulshin I., Kuzina A. Adaptation of nitrifying activated sludge to simultaneous nitrification and denitrification in the lab-scale oxidation ditch. International Journal of Applied Engineering Research, 2015, v. 10, no. 21, pp. 42618–42623.
5. Verawaty M., Pijuan M., Yuan Z., Bond P. L. Determiningthe mechanisms for aerobic granulation from mixed seed of floccular and crushed granules in activated sludge wastewater treatment. Water Research, 2012, v. 46, no. 3, pp. 761–771.
6. Zaletova N., Voronov Y., Makisha N. Conditions of advanced removal of phosphorus at wastewater treatment plants. International Journal of Applied Engineering Research, 2015, v. 10, no. 21, pp. 42454–42455.