The problem of water treatment (1976)

Documentary №61026, 2 parts, duration: 0:19:34, black-white
Production: Lennauchfilm (LNF)
Camera operators:G.Poluyanov


The film, created by order of the Ministry of Education of the USSR, for classes on ecology.

Reel №1

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Construction of sewage treatment plants on a small island in the Gulf of Finland.

Panorama of constructed sewage treatment facilities.


River, boat.

Ancient engravings of structures that used water.

Old engravings showing patients and doctors during epidemics.

Photo of the aqueduct.

Photos of the first cleaning devices.

Water towers.

GOST for drinking water in 1973.

Scientists have determined the chemical composition of water necessary for the human body.

Passers-by on the streets of the city.

Enterprises that produce food and medicines.

Metallurgical production.

The production of clean water has become an independent branch of production.

Water purification by settling, filtration, distillation and boiling in laboratory conditions.

The method of purification depends on the composition of the water.

Artesian groundwater.

A cartoon explaining how artesian water is kept clean.

When extracting artesian water, the main task is to raise the water to the surface.

For complete disinfection, chlorine can be added.

A cartoon showing the provision of water to small towns and villages.

Panorama of Leningrad from the Neva River.

For large cities, water is taken from rivers and lakes.

A cartoon showing the provision of water to large cities.

Rough water purification from an external source.

The water then passes through strainers for more thorough cleaning.

The next stage of water purification is disinfection.

In the chlorination room, chlorine water is prepared and added to the channel

raw water.

For cleaning from very small particles, an automatic dispenser feeds aluminum sulfate into the water.

After this operation, the water enters the sump.

A cartoon showing the operation of the sump.

Clarified water goes to fast filters.

The composition of the fast filters.

If the water in the source is clean, then the settling operation is excluded from the purification chain.

The composition of the contact clarifier.

A cartoon explaining the operation of the contact clarifier.

This completes the water purification.

Now you can introduce the necessary additives, for example, fluorine compounds.

The purified water enters the tanks, and then to the pumping station of the second lift.

From here, clean water goes into the city.

Water treatment control room.

The laboratory assistant takes water samples.

The compliance of water with Gost is determined.

Key words

Stages of water purification from different sources.

Locations: Leningrad region [785] Leningrad [848]


Water treatment facilities.

Reel №2

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A caravan in the desert.

Cracked earth.

Green forest.

A man and a child wash under running water.

In the foreground is a woman with a stroller, in the background children are splashing in the pool.

The city of Shevchenko oilmen is watered by the salty waters of the Caspian Sea.

The cheap energy of a nuclear power plant feeds powerful desalination plants.

Seawater goes through all the stages of mechanical purification, as well as fresh water.

Then, by distillation in desalinators, salts are removed from it.

Everyday sketches on the streets of the city of Shevchenko.

View of the desalination plant from a height.

The coast of the Caspian Sea.

The water surface.

The sailboat sails on the water.

The boat sails past the bathing places.

People go water skiing.

Lake Erie in the USA.

Nearby metallurgical enterprises began dumping waste into the lake.

Ecological problems of the lake.

The ship floats in foam on the Rhine River.

A dying fish.

A tanker wrecked off the coast of England.

Children collect the affected animals.

A note in the newspaper "Pravda" about ecology.

A note in the Izvestia newspaper about the master plan for the reconstruction of Moscow, including treatment facilities.

The Law on the Basics of Water Legislation.

A large oil refinery.

A large amount of water is used in production.

Production facilities of the plant.

Sand catcher.

The water purified from large mechanical impurities enters the oil traps.

The oil is collected in tanks and reused.

The water will be saturated with air and fed to the flotators.

A cartoon explaining the work of flotators.

Then comes the biological purification.


They simulate the biological process of water purification.

For some types of bacteria, organic sewage is a tasty food.

A view of these bacteria under a microscope.

Complex organic compounds are oxidized by bacteria into carbon dioxide and water.

Then the water is defended, chlorinated and dumped into the reservoir.

The laboratory assistant collects water for analysis.

Laboratory of treatment facilities.

Pervomaisky chemical plant in Ukraine.

This plant will have no sewage.

There is a closed water supply cycle here.

Sewage treatment plants.

Alternating frames with views of the plant's equipment.

Pond with swans.

Panorama of the city near the factory.

XXV Congress of the CPSU.

Panorama of the river with a floating steamer.

Sunset on the river.

Key words

Water purification in production.
Desalination of seawater.

Locations: Ukraine [229] Caspian Sea


Oil refinery. Chemical plant.

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