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Vol. 9 pp. 193-213

N.A. Gorbunova, A.A. Fedoseenko

 

DETERMINATION OF THE CONTENT OF ECOTOXICANTS IN EMISSIONS FROM A SEWAGE SLUDGE INCINERATION PLANT

 

Annotation. The article investigates the processes of transformation of heavy metals and the formation of organochlorine compounds during the thermal utilization of sewage sludge. It has been established that the main part of heavy metals (copper, zinc, arsenic, chromium, lead, mercury, nickel, cadmium, etc.) migrates into ash fractions, and the residual part enters the atmospheric air with flue gases – while its concentration is below hygienic standards for populated areas. The dynamics of heavy metal emission in the temperature range of 850–1000 °C has been studied; a twofold increase in the emission rate of lead and zinc, an increase in chromium emission, and stability of the indicators for manganese, copper, and nickel were revealed. The influence of chlorides (NaCl, polyvinyl chloride) on metal emissions is shown. The authors also analyzed the formation of polychlorinated dibenzo-p-dioxins (PCDDs, 75 representatives) and dibenzofurans (PCDFs, 135 representatives): their concentration depends on the chlorine content in the material. The main components of emissions are: 2,3,4,7,8 PeCDF (62 %), 1,2,3,4,7,8 HxCDF (19 %), and others. The environmental acceptability of thermal utilization of sewage sludge has been confirmed when using modern gas treatment technologies and considering the life cycle of the process, which meets the requirements of the best available techniques and the legislation of the Russian Federation (Federal Law No. 296-FZ).

Keywords: sewage sludge; sewage sludge incineration; utilization technologies; industrial emissions; atmospheric air pollution.

For citation: Gorbunova N.A., Fedoseenko A.A. [Determination of the ecotoxicants in emissions from a sewage sludge incineration plant]. Upravlenie tekhnosferoi, 2026, vol. 9, issue 1, рр. 193–213. DOI: 10.35634/UdSU.2026.70.95.013. (In Russ.).

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About the Authors

Gorbunova Natalia Aleksandrovna

postgraduate student, Emperor Alexander I St.Petersburg State Transport University, 190031, St. Petersburg, Moskovsky ave., 9. Russia.

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Fedoseenko Anastasia Alekseevna

Candidate of Chemical Sciences, Associate Professor of the Department of Technological and Ecological Safety, Emperor Alexander I St.Petersburg State Transport University, 9 Moskovsky Ave., Saint Petersburg, 190031, Russia.

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