UDC 628.52:66.074.51
DOI 10.35776/VST.2024.01.01

Vasiliak L. M., Sobur Denis, Strelkov A. K.

The use of chemical scrubbers to eliminate odors
at the wastewater treatment facilities

Summary

The potential and features of using chemical scrubbers to remove from the air hydrogen sulfide and other malodorous substances generated during the transportation and treatment of wastewater are considered. A comparative analysis of the characteristics of various types of scrubbers: alkaline, hypochlorite, peroxide, and based on iron compounds is presented. It has been shown that the use of chemical scrubbers to eliminate malodorous substances at the wastewater treatment facilities has a number of significant limitations. The use of chemical scrubbers is advisable at the primary stage of air cleaning. Relatively low concentrations of hydrogen sulfide in the ventilation emissions of the wastewater treatment facilities at the relatively high concentrations of carbon dioxide result in an increase in the consumption of chemicals for second-order chemical reactions. In this case, significant operating and capital costs in the climatic conditions of Russia, except the southern regions, the operation complexity of the equipment, and the need for additional air cleaning using other methods should take into account.

Key words

wastewater , absorption , industrial methods of removing malodorous substances , hydrogen sulfide removal , chemical scrubbers , odor control

For citation: Vasilyak L. M., Sobur D. A., Strelkov A. K. The use of chemical scrubbers to eliminate odors at the wastewater treatment facilities. Vodosnabzhenie i Sanitarnaia Tekhnika, 2024, no. 1, pp. 4–12. DOI: 10.35776/VST.2024.01.01. (In Russian).

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

REFERENCES

1. Sorrels J. L. Cost reports and guidance for air pollution regulations. Section 5. SO2 and acid gas controls. Chapter 1. Wet and dry scrubbers for acid gas control. U.S. Environmental Protection Agency. April 2021.
2. Данилович Д. А., Костюченко С. В., Левченко Д. А., Собур Д. А., Тимаков М. С. Проектно-технологические решения предотвращения возникновения и распространения запахов от сооружений транспортировки и очистки городских сточных вод // Наилучшие доступные технологии водоснабжения и водоотведения. 2022. № 4. С. 18–29. Danilovich D. A., Kostyuchenko S. V., Levchenko D. A., Sobur D. A., Timakov M. S. [Design and process solutions to prevent the generation and spread of odors at the municipal wastewater transportation and treatment facilities]. Nailuchshie Dostupnye Tekhnologii Vodosnabzheniia i Vodootvedeniia, 2022, no. 4, pp. 18–29. (In Russian).
3. Ersin Üresin, et al. An experimental study for H2S and CO2 removal via caustic scrubbing system. Process Safety and Environmental Protection, 2015, v. 94, рр. 196–202.
4. Teixeira J. V., et al. Assessment of indoor airborne contamination in a wastewater treatment plant. Environmental Monitoring and Assessment, 2013 Jan, 185 (1): 59-72. DOI: 10.1007/s10661-012-2533-0.
5. Пономаренко А. М., Власов Д. Ю., Басов Н. С., Новиков С. Н., Кудрявцев Н. Н., Костюченко С. В. О выборе способов удаления дурнопахнущих веществ из вентиляционных выбросов системы транспортировки и очистки сточных вод // Водоснабжение и санитарная техника. 2021. № 1. C. 21–28. DOI: 10.35776/VST.2021.01.03.
   Ponomarenko A. M., Vlasov D. Iu., Basov N. S., Novikov S. N., Kudriavtsev N. N., Kostyuchenko S. V. [On the choice of methods for removing malodorous substances from vent emissions of the transportation and wastewater treatment system]. Vodosnabzhenie i Sanitarnaia Tekhnika, 2021, no. 1, pp. 21–28. DOI: 10.35776/VST.2021.01.03. (In Russian).
6. Moussavi G., et al. Effectiveness of hydrogen peroxide in H2S removal by a packed high specific surface area bed scrubber. Chemical and Biochemical Engineering Quarterly, 2008, 22 (1): 9-14.
7. Miltner M., Makaruk A., Krischan J., Harasek M. Chemical-oxidative scrubbing for the removal of hydrogen sulphide from raw biogas: potentials and economics. Water Science & Technology, 2012, 66 (6): 1354-60. DOI:10.2166/wst.2012.329.
8. Biogas upgrading evaluation of methods for H2S removal. Danish Technological Institute. December 2014.
9. Стрелков А. К., Василяк Л. М., Смирнов А. Д. Удаление запахов на предприятиях коммунального хозяйства: опыт различных стран // Вода Magazine. 2020 [элект­ронный ресурс]. Strelkov A. K., Vasilyak L. M., Smirnov A. D. [Odor control at the municipal utilities: experience of different countries]. Voda Magazine, 2020 [electronic resource]. (In Russian).
10. Santos A., Guimerà X., Dorado A. D., Gamisans X., Gabriel D. Conversion of chemical scrubbers to biotrickling filters for VOCs and H2S treatment at low contact times. Applied Microbiology and Biotechnology, 2015 Jan, 99 (1): 67-76.