DOI 10.35776/VST.2022.09.05
UDC 628.35

Stepanov S. V., Avdeenkov Pavel, Ponomarenko Ol’ga, MOROZOVA K. M.

Results of studies of biological wastewater treatment of an egg processing enterprise

Summary

Biological treatment of wastewater of an enterprise for enhanced processing of chicken eggs in a batch reactor (SBR) has been studied. The treatment of both raw and pre-coagulated wastewater under aerobic and anoxic-aerobic conditions was studied in a 5-liter experimental unit for four months. In the course of the experiment in the treatment of raw wastewater with an average COD sludge load of 0.18 g/(g·day), average concentrations of pollution in the effluent were obtained, mg/l: COD – 253, BOD_total – 58.4, suspended solids – 11, ammonia nitrogen – 2.1, nitrite nitrogen – 0.06. The average values of the specific rate of oxidation of organic substances as COD, normalized to 20°С, amounted to 9.8 mg/(g·h); as BOD_total 7.2 mg/(g·h). While operating SBR with wastewater after physical and chemical treatment, with an average COD load of sludge of 0.15 g/(g·day), the effluent was characterized by the following average values, mg/l: COD – 99; BOD_total – 15.4; suspended solids – 10; N–NH₄ – 1; N–NO₂ – 0.04. The average values of the specific rate of oxidation of organic substances as COD at 20°С turned out to be 8.3 mg/(g·h) and as BOD_total – 5.7 mg/(g·h). The concentrations of nitrogen nitrates in the effluent in two anoxic phases in the SBR cycle averaged as follows: during raw wastewater treatment – 21.7 mg/l, and during pre-coagulated wastewater treatment – 15 mg/l.

Key words

wastewater , biological treatment , food industry , egg processing enterprise , batch reactor

The further text is accessible on a paid subscription.
For authorisation enter the login/password.
Or subscribe

References

1. Stepanov S. V., Avdeenkov P. P., Ponomarenko O. S., Morozova K. M. [The results of studies of physical and chemical wastewater treatment of egg processing enterprises]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2022, no. 5, pp. 32–39. DOI: 10.35776/VST.2022.05.04. (In Russian).
2. Tianzhi W., et al. Effect of coagulation on bio-treatment of textile wastewater: Quantitative evaluation and application. Journal of Cleaner Production, 2021, v. 312, article 127798.
3. Solkina O. S. Biologicheskaia ochistka stochnykh vod predpriiatii molochnoi promyshlennosti s primeneniem biomembrannoi tekhnologii [Biological wastewater treatment of dairy industry enterprises using biomembrane technology. Synopsis of a thesis for Ph. D. degree in Engineering. Penza, 2018, 127 p.].
4. Jewell W. J., David H. R., Johndrew O. F., Loehr Jr. R. C., Siderewicz W., Zall R. R. Egg breaking and processing wastes control and treatment. EPA 660/2-75-0.19. Environmental Protection Agency, 1975. 186 р.
5. Sánchez J. B., Vuono M., Dionisi D. Model-based comparison of sequencing batch reactors and continuous-flow activated sludge processes for biological wastewater treatment. Computers & Chemical Engineering, 2021, v. 144, pp. 107–127.
6. Dzenis L., Gogina E. S., Gurinovich A. D. [Small-scale treatment facilities upgrade using SBR technology]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2014, no. 2, pp. 72–78. (In Russian).
7. Mace S., Mata-Alvarez J. Utilization of SBR Technology for wastewater treatment: An Overview. Industrial & Engineering Chemistry Research, 2002, v. 41, no. 23, pp. 5539–5553.
8. Voronov Iu. V., Iakovlev S. V. Vodootvedenie i ochistka stochnykh vod: uchebnik dlia vuzov [Wastewater disposal and treatment: textbook for higher education. Moscow, ASV Publ., 2006, 704 p.].
9. Kuznetsov A. E., Gradova N. B., Lushnikov S. V. Prikladnaia ekobiotekhnologiia: uchebnoe posobie [Applied ecobiotechnology: study guide. In 2 volumes. V. 1. Moscow, Laboratoriia Znanii Publ., 2020, 672 p.].
10. Fedorov N. F., Shifrin S. M. Kanalizatsiia: uchebnoe posobie [Wastewater disposal: study guide. Moscow, Vysshaia Shkola Publ., 1968, 592 p.].
11. Sidorova L. P., Snigireva A. N. Ochistka stochnykh i promyshlennykh vod. Chast’ II. Biologicheskaia ochistka. Aktivnyi il. Oborudovanie [Waste and industrial water treatment. Activated sludge. Equipment. Electronic text edition. Ekaterinburg, 2017, 126 p.].
12. Henze M. Ochistka stochnykh vod. Biologicheskie i khimicheskie protsessy [Wastewater treatment. Biological and chemical processes. Translated from English. Moscow, Mir Publ., 2004, 480 p.].