The system is designed for water treatment in case of contamination of water intake with radioactive, toxic substances and bacteriological agents, both as a result of sabotage, and as a result of man-made and natural disasters. The nominal system capacity is 50 m3 / h (1,200 m3 / day), which is enough to ensure:

4,800 people according to the norms of consumption established for the urban population (250 l / person per day);

15,000 people in accordance with the norms of consumption established for military personnel of the nuclear submarine 500 (80 l / person per day);

240,000 people using water just for drinking and cooking.

The system is delivered in full factory readiness, supplied with a supply of consumables, a set of tools and spare parts. System deployment time - 6 hours.

The system consists of five 20-foot containers of the 1C type of olive-green color, interconnected by hydraulic and electrical communications:

container number 1 - source water storage unit;

container number 2 - water treatment unit with ozone;

container number 3 - site mechanical filtration and pre-sorption;

container number 4 - site microfiltration, finishing sorption and nanofiltration;

container number 5 - site storage and distribution of purified water.

The performance of containers at extremely low and high temperatures is achieved through the use of seamless ceramic fiber insulation, between the blocks of which there are no convective cavities.


Container lining fully welded. Connections with gaps (bolted, riveted) are missing.

The outer surfaces of the containers are phosphated before priming.

Optionally, instead of containers No. 1 and No. 5, the system can be equipped with soft tanks for drinking water of the MP-NT series of 100 m3 each, as storage units for the original and purified water.



WATER TREATMENT TECHNOLOGY

The source water enters container number 1, where a reserve of water is created in case the water supply from the water intake is cut off. From container No. 1, the source water is pumped to container No. 2, where it is treated with high concentration of ozone (at least 9% by weight) in a two-zone countercurrent reactor.


Ozone is produced in high-voltage high-frequency barrier discharge generators. High ozone concentration is achieved through the use of special technology of high-performance cooling of high-voltage electrodes (anodes) of generators.

As the source gas for the production of ozone, oxygen with a concentration not lower than 95% is used, which is produced on site in oxygen concentrators that make up the water treatment equipment. To increase the resource of molecular sieves of oxygen concentrators, the air entering the concentrators is filtered and dried.

In a two-zone countercurrent reactor, water is completely disinfected from bacteria and viruses, including spore fighting BS forms, oxidation with the transfer of polyvalent metals and semimetals to compounds (iron, manganese, copper, cobalt, mercury, bismuth, thallium, arsenic, antimony, etc.) into an insoluble state .e.), full or partial destruction of organic compounds (including complex organophosphorus, organochlorine and arsenic compounds). After ozone treatment in the rector, organic compounds either turn into harmless substances (H2O, CO2) or undergo partial destruction with the formation of less toxic and easily sorbed intermediate compounds.


Then the water enters the treatment in container No. 3, where the suspensions formed in it during oxidation in container No. 2 on automatically washed filters and pre-sorption on activated carbons of the products of partial destruction of organic compounds formed during oxidation in container No. 2 and the destruction of residual dissolved ozone occurs .


Then the water enters the treatment in container No. 4, where microfiltration of water occurs with the removal of the remaining ultrafine suspensions and finishing sorption on the ANM material, which is able to sorb the dissolved substances in concentrations not available for sorption on activated carbons.

Fully purified from suspended matter and dissolved organic compounds, the water enters the housings of nanofiltration membranes, where it is divided by membranes into demineralized permeate (purified water) and over-enriched salts concentrate. The concentrate is discharged into the sewer.

To increase the inter-flush life of nanofiltration membranes, an antiscalant is dosed before the nanofiltration.

The purified water passes through the water meter, is supplied with a preservative dose of sodium hypochlorite and enters the cumulative capacity of container No. 5.

From container No. 5 purified water under pressure is fed into the consumer's water supply network. The design of the water distribution hub allows you to connect the system to the existing water supply networks with second-lift pumps, carry out water extraction without connecting to the networks (in the tank), supply water to consumers through temporary pipelines, using system pumps to discharge the purified water.