Ecology and production of electric energy (1989)

Toxic emissions at an industrial plant.

Photo of a man in a gas mask against the background of containers with petroleum products.

Photos depicting the results of the harmful effects of industry on nature.

Chimney of a thermal power plant (TPP).

Sulfur dioxide emissions into the atmosphere.

Fields for grazing cattle are in the smoke.

With high chimneys, sulfur dioxide emissions contribute to the formation of pollutant flows over long distances and the formation of acid rain.

In the area of power plants burning high-sulfur fuel, severe corrosion of metals and building structures, the death of coniferous trees is observed.

The main methods for reducing sulfur emissions.

Panorama of the lake, reeds swaying in the foreground.

Control room at the TPP. The principle of sulfur capture consists in washing flue gases with some alkaline solution.

Gubkinskaya TPP. Pilot industrial plant for the extraction of sulfur dioxide from flue gases using the wet limestone method.

Control panel of the unit.

Cartoon explaining the process of additional oxidation of calcium sulfide to calcium sulfate.

Cartoon explaining the scheme of the limestone method of cleaning flue gases.

Industrial unit for the preparation of limestone suspension.

To obtain commercial gypsum, the pulp from the first stage of absorption is continuously discharged to the thickener.

From where it is fed to the autoclave.

Gypsum drying oven.

Cartoon explaining the production of gypsum.

Unit for the extraction of sulfur dioxide by the method of ammonia-cyclic cleaning of flue gases.

Dragobuzhskaya TPP. Panorama of the TPP. The method is based on the absorption of sulfur dioxide by a solution of ammonium sulfite.

Cartoon explaining the operation of the method.

Annual volumes of commercial products obtained during the extraction of sulfur dioxide by the method of ammonia-cyclic cleaning of flue gases.

Severodonetsk TPP. Pilot-industrial unit for cleaning flue gases from sulfur oxides using the magnesite-cyclic method.

This method is based on the absorption of sulfur dioxide by a suspension of magnesium oxide.

Cartoon explaining the process flow chart of this method.

Disadvantages of the method.

Moldavskaya GRES. Pilot unit for simultaneous cleaning of flue gases from sulfur and nitrogen oxides, operating using the ammonia-ozone method.

Cartoon explaining the process flow chart of this method.

The common disadvantage of all methods is an increase in the cost of the TPP by 30-40%, an increase in operating costs.

TPP chimney.

Laboratory for studying flue gas cleaning methods.