UDC 628.237.2:628.521
DOI 10.35776/VST.2024.06.06

Vasiliak L. M., Sobur Denis

Why is ozone not used in world practice to control odors
from the wastewater disposal system?

Summary

The reasons that limit possible using ozone to remove hydrogen sulfide and other malodorous substances coming from the wastewater treatment facilities and wastewater pumping stations are analyzed. It is shown that one of the main disadvantages is the long time required to remove malodorous substances to the required low concentrations. The main reaction of ozone interacting with hydrogen sulfide is presented, its rate is analyzed, and it is shown that the typical duration of the reaction ranges from tens of minutes to several hours. The difficulties of using ozone to remove hydrogen sulfide, associated with the chemical resistance of the latter, are presented. The ozone concentrations required for the effective cleaning, and the number of ozone molecules consumed to remove one hydrogen sulfide molecule are estimated. Data are provided on the use of ozone to remove volatile organic compounds, including phenol and formaldehyde. Issues related to the disposal of reaction products and safety precautions of ozone use are also discussed.

Key words

ozonization , air cleansing , sewerage treatment facilities , hydrogen sulfide , ozone , odors

For citation: Vasilyak L. M., Sobur D. A. Why is ozone not used in world practice to control odors from the wastewater disposal system? Vodosnabzhenie i Sanitarnaia Tekhnika, 2024, no. 6, pp. 31–36. DOI: 10.35776/VST.2024.06.06. (In Russian).

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

REFERENCES

1. Escalas A., Guadayol J. M., Cortina M., Rivera J., Caixach J. Time and space patterns of volatile organic compounds in a sewage treatment plant. Water Research, 2003, v. 37 (16), рр. 3913–3920. doi:10.1016/s0043-1354(03)00336-1.
2. Becker K. H., Inocencio M. A., Schurath U. The reaction of ozone with hydrogen sulfide and its organic derivatives. Proc. Symp. Chem. Kinet. Data Upper Lower Atmos, 1974.
3. NIST Chemical Kinetics Database – Standard Reference Database 17, Version 7.0 (Web Version), Release 1.6.7 Data Version 2013.03. http://kinetics.nist.gov/kinetics/.
4. Glavas S., Toby S. Reaction between ozone and hydrogen sulfide. The Journal of Physical Chemistry, 1975, v. 79 (8), рр. 779–782. doi:10.1021/j100575a004.
5. Hales Jeremy M., Wilkes James O., Louis J. York. The rate of reaction between dilute hydrogen sulfide and ozone in air. Atmospheric Environment Pergamon Press, 1969, v. 3, рр. 657–667.
6. Mousavipour S. H., Mortazavi M., Hematti O. Multichannel RRKM-TST and direct-dynamics CVT study of the reaction of hydrogen sulfide with ozone. The Journal of Physical Chemistry A, 2013, v. 117 (31), рр. 6744–6756. doi:10.1021/jp404738d.
7. Oyama S. T. Chemical and catalytic properties of ozone. Catalysis Reviews, 2000, v. 42 (3), рр. 279–322. doi:10.1081/cr-100100263.
8. Zhang, Y., Pagilla K. R. Gas-phase ozone oxidation of hydrogen sulfide for odor treatment in water reclamation plants. Ozone: Science & Engineering, 2013, v. 35 (5), рр. 390–398. doi:10.1080/01919512.2013.796861.
9. Pasetto L. V., Simon V., Richard R., JPic-S., Violleau F., Manero M.-H. A catalyst-free process for gas ozonation of reduced sulfur compounds. Chemical Engineering Journal, 2019, v. 387, pр. 1–28. doi:10.1016/j.cej.2019.123416.
10. Da Costa Filho B. M., Silva G. V., Boaventura R. A. R., Dias M. M., Lopes J. C. B., Vilar V. J. P. Ozonation and ozone-enhanced photocatalysis for VOC removal from air streams: Process optimization, synergy and mechanism assessment. Science of the Total Environment, 2019, v. 687, рр. 1357–1368. doi:10.1016/j.scitotenv.2019.05.3.
11. Comia J., Oliva G., Zarra T., Naddeo V., Ballesteros F. C., Belgiorno V. Degradation of gaseous VOCs by ultrasonication: Effect of water recirculation and ozone addition. BT-frontiers in water-energy-nexus – nature-based solutions, advanced technologies and best practices for environmental sustainability; Naddeo V., Balakrishnan M., Choo K.-H., Eds. Springer International Publishing: Cham, Switzerland, 2020, рр. 333–336.
12. Esswein Eric J., Boeniger Mark F. Effect of an ozone-generating air-purifying device on reducing concentrations of formaldehyde in air. Applied Occupational and Environmental Hygiene, 1994, v. 9:2, pp. 139–146. doi:10.1080/1047322X.1994.10388285.
13. Janie D. McClurkin, Dirk E. Maier, Klein E. Ileleji. Half-life time of ozone as a function of air movement and conditions in a sealed container. Journal of Stored Products Research, 2013, v. 55, pp. 41–47.