UDC 628.35
DOI 10.35776/VST.2023.07.03

Kharkina O. V.

Principal risks in designing wastewater treatment facilities. Calculation of aeration tanks (part 1) (for the discussion)

Summary

A detailed calculation of the values of the aerobic age of activated sludge is presented to ensure the required quality of the effluent, both in terms of ammonium nitrogen and nitrite nitrogen, with examples. Similar indicators have been calculated, for the most part, by the Danilovich–Epov empirical method, and on the basis of the calculations it is shown why the Danilovich–Epov method gives underestimated values of the sludge aerobic age. It is shown that calculations of the aeration tank volumes in our country have always (since 1974) been based on the formulas of enzymatic kinetics and, hence, have been theoretical (mathematical) models. Most process engineers in our country have always calculated and still are calculating biological wastewater treatment facilities using the formulas of enzymatic kinetics; therewith, this approach is always the next step compared to empirical models.

Key words

nitrification , sludge age , removal of nitrogen and phosphorus from wastewater , calculation of aeration tanks , ASM model

For citation: Khar’kina O. V. Principal risks in designing wastewater treatment facilities. Calculation of aeration tanks (part 1). Vodosnabzhenie i Sanitarnaia Tekhnika, 2023, no. 7, pp. 23–34. DOI: 10.35776/VST.2023.07.03. (In Russian).

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REFERENCES

1. Laskov Iu. M., Voronov Iu. V., Kalitsun V. I. Primery raschetov kamalizatsionnykh ochistnykh sooruzhenii [Examples of the calculations of wastewater treatment facilities. Moscow, Vysshaia Shkola Publ., 1981, 231 p.].
2. Voronov Iu. V., Iakovlev S. V. Vodootvedenie i ochistka stochnykh vod [Wastewater disposal and treatment. ASV Publ., 2006, 704 p.].
3. Moizhes O. V. [OxiD dynamic model of wastewater biological treatment facilities]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2008, no. 10, pp. 52–57. (In Russian).
4. Moizhes O. V. [Application of the dynamic model «OxiD» for the reconstruction of LWWTF aeration tanks using the technology of biological removal of nitrogen and phosphorus]. Proceedings of WasteTech–2005 International Congress. Moscow, 2005, pp. 112–116. (In Russian).
5. Shvetsov V. N., Khar’kina O. V., Stepanov S. V. [Comparison of the calculation results for aeration tanks using the NII VODGEO/SamGTU and ASM2d models]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2021, no. 5, pp. 18–29. DOI: 10.35776/VST.2021.05.02. (In Russian).
6. Khar’kina O. V. [Method of calculating biological treatment facilities: comparative analysis]. Nailuchshchie Dostupnye Tekhnologii Vodosnabzheniia i Vodootvedeniia, 2021, no. 6, pp. 50–62. (In Russian).
7. Khar’kina O. V., Iskalieva K. R., Malich E. V. [Comparison of aeration tank calculations using ASM2d and ATV models]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2021, no. 7, pp. 13–22. DOI: 10.35776/VST.2021.07.03. (In Russian).
8. Khar’kina O. V. [Comparison of the results of calculating aeration tanks according to the method of Danilovich–Epov and ASM2d model (part 1)]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2022, no. 5, pp. 20–31. DOI: 10.35776/ VST.2022.05.03. (In Russian).
9. Khar’kina O. V. [Comparison of the results of calculating aeration tanks according to the method of Danilovich–Epov and ASM2d model (part 2)]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2022, no. 11, pp. 26–34. DOI: 10.35776/VST.2022.11.03. (In Russian).
10. Khar’kina O. V., Stepanov S. V. [Analysis of models and methods for calculating aeration tanks (part 1)]. Nailuchshchie Dostupnye Tekhnologii Vodosnabzheniia i Vodootvedeniia, 2023, no 1, pp. 19–31. (In Russian).
11. Khar’kina O. V., Stepanov S. V. [Analysis of models and methods for calculating aeration tanks (part 2)]. Nailuchshchie Dostupnye Tekhnologii Vodosnabzheniia i Vodootvedeniia, 2023, no. 2, pp. 38–49. (In Russian).
12. Danilovich D. A., Epov A. N. Raschet i tekhnologicheskoe proektirovanie protsessov i sooruzhenii udaleniia azota i fosfora iz gorodskikh stochnykh vod [Calculation and design of the processes of removing nitrogen and phosphorus from municipal wastewater. Moscow, 2020, 225 p.].
13. Henze M., Gujer W., Mino T., van Loosdrecht M. Activated sludge models ASM1, ASM2, ASM2s and ASM3. London, 2000. DOI: 10.2166/9781780402369.
14. Shvetsov V. N., Morozova K. M., Stepanov S. V. [Designing facilities for municipal and industrial wastewater biological treatment in aeration tanks with nutrients]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2018, no. 9, pp. 26–39. (In Russian).
15. Stepanov S. V. Tekhnologicheskii raschet aerotenkov i membrannykh bioreaktorov [Technological calculation of aeration tanks and membrane bioreactors: Textbook. Moscow, ASV Publ., 2020, 224 p.].
16. Khar’kina O. V. Effektivnaia ekspluatatsiia i raschet sooruzhenii biologicheskoi ochistki stochnykh vod [Efficient operation and calculation of wastewater biological treatment facilities. Volgograd, Panorama Publ., 2015, 433 p.].
17. Nezdoiminov V. I., Rozhkov V. S., Vasil’eva Iu. V. [Theoretical substantiation of wastewater treatment schemes using airlift bioreactors]. Vestnik Donbasskoi Natsional’noi Akademii Stroi’el’stva i Arkhitektury, 2022, is. 5 (157), pp. 89–97. (In Russian).
18. Kirillov A. N., Smirnov N. V. [Computer simulation and control of wastewater biological treatment processes in an aeration tank]. Vestnik PNIPU, 2018, no. 26, pp. 142–157. (In Russian).
19. Shchetinin A. I., Esin M. A., Malbiev B. Iu., Regotun A. A. [Simulation of biochemical processes of wastewater treatment as a basis of WWTFs retechnologization]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2010, no. 11, pp. 60–69. (In Russian).