The path to equilibrium. (1980)

General view of the factory buildings of the North-Donetsk Production

Association "Azot".

Production processes in the shops of the enterprise.

At the heart of the purification industry at the enterprise is a combination of local and group cleaning methods.

General view of the treatment facilities of the biological complex.

General view of the process of preliminary treatment of wastewater.

Water runs through the chutes, then undergoes mechanical cleaning, that is, a variety of suspensions are removed from it.

The supply of water to the aeration tanks (treatment facilities), where it is returned to chemical purity.

An employee of one of the laboratories of the enterprise conducts water abstraction for the subsequent analysis of it for the composition of various substances in it.

A woman looks through a microscope.

Active sludge from aerotanks (treatment facilities) under a microscope.

Laboratory workers at work in the laboratory.

Kind of flasks with water before cleaning and after.

General view of the river Kharkov (removed from the sailing).

Boats at the shore.

A group of scientists and designers at the mock-up of the future Pervomaisky chemical plant.

General view of the constructed Pervomaisky chemical plant near Kharkov.

At the enterprise, for the first time in the world practice, it was possible to avoid pollution of reservoirs by sewage.

Instead of the usual general runoff, closed cycles were used for each production.

This allowed to purify the waste water, and then again to put it into circulation.

The water cooling was changed to air cooling: so-called evaporators of cooling were applied.

Deer in the enclosures in the zoo of the enterprise.

Black swans, ducks swim in the pond.

General view of flowering mallows in the territory of the plant.

Type of shop before chemical treatment of wastewater.

Production processes in the shop.

The type of absorbers - special tanks, where organic impurities are extracted from the effluent using activated carbon.

The kind of regeneration furnace where impurities burn out, and coal regains its activity and returns to the process.

Water supply to ion-exchange filters, where calcium, magnesium and ions of other metals are separated from it.

Type of purified water, returned to production.

Production of complex fertilizers in one of the shops of the enterprise.

Fertilizer packaging in paper bags.

Tractors plow the land in the fields.

A herd of cows walks past the pasture.

Landscape: fields, forest, country road.

Carrying out blasting in the quarry.

The excavator loads the rock.

Production processes in the shops of one of the chemical industry enterprises.

Sewage drains into the river.

On the river is a pleasure boat.

Smoke pipes of enterprises and CHP. Employees of one of the enterprises are monitoring the indications of devices for the level of environmental pollution.

Production of synthetic coating in the shop of a chemical industry enterprise.

The workers of the factory put a sheet of capron in a pile.

View of the main dispatching desk of the enterprise.

Dispatcher for the remote control.

Airplanes on the flying field of the airfield.

The IL-18 aircraft carrying the atmospheric control laboratory is preparing to fly.

Pilots in the cockpit of the plane.

The plane goes on takeoff.

General view of the mountain massif

(Taken off the plane).

Employees of the laboratory monitor the readings of the devices.