RU2422384C1 - Method of complex water treatment and plant to this end - Google Patents

Abstract

FIELD: process engineering. ^ SUBSTANCE: invention relates to complex multi-stage treatment of industrial wastes or effluents. Proposed method comprises water diversion by pump 2, water cleaning of mechanical impurities in filter 3, water ultrasound treatment in cavitation unit 5, water separation in settler into clean water and sediment and further treatment by UV radiation in unit 10. Downstream of pump 2, 1 to 3% of water is bled for additional cavitation treatment. After said treatment, said water is fed to pump inlet. Prior to ultrasound treatment in cavitation unit 5, water is forced through gravel-sand filter 3 and saturated with iron ions in electrolyser 4 to produce yellow-grey solution with pH>6. After ultrasound cavitation, water is subjected to effects of light photons in light module 6 with energy of 60-70 ccal/mol and to that of magnetic field in magnetic module 7. Water purified by UV radiation in unit 10, it is subjected to additional magnetic field effects in magnetic module 11. ^ EFFECT: higher efficiency of water purification and higher water quality. ^ 13 cl, 2 dwg

Description

The invention relates to a comprehensive, multi-stage treatment of industrial or wastewater to obtain the desired quality of water at the outlet.

A known method of complex water treatment, including water intake by a pump, its purification from mechanical impurities, ultrasonic cavitation impact on it, separation in a sump into purified water and sediment, and subsequent treatment of purified water with ultraviolet radiation (see RF patent No. 20895116, IPC C02F 9 / 00, published on 09/10/1997).

A known installation for water purification, containing a series-connected filter for purifying water from mechanical impurities, a suction pump, an ultrasonic unit, a sump, the upper part of which is connected to a tank for purified water, and the lower one to a sediment collector, and a device for treating water with ultraviolet radiation (see RF patent No. 20895116, IPC C02F9 / 00, publ. 09/10/1997).

The disadvantage of this method and device should include insufficiently complete water purification from harmful impurities, in particular from sulfur compounds and the like. The disadvantage of the prototype should also include the use of ozone-containing gases in it.

The objective of the invention is to increase the completeness of water purification from undesirable impurities and the possibility of obtaining the quality set by the consumer at the water outlet.

This problem is achieved by the fact that in the method of complex water purification, including water intake by a pump, its purification from mechanical impurities, ultrasonic cavitation exposure to it, separation in the sump into purified water and sediment, and subsequent treatment of the purified water with ultraviolet radiation, 1-3 % of the water after the pump is taken, additional ultrasonic cavitation action is carried out on the selected water and directed to the pump inlet, before the ultrasonic cavitation action, water is passed through g the avian-sand filter and saturate it with iron ions until a yellow-brown solution with pH> 6 is obtained, after ultrasonic cavitation exposure, water is exposed to light photons with an energy of 60-70 kcal / mol and a magnetic field, and after treatment of purified water with ultraviolet radiation on it with an additional magnetic field.

In addition, it is possible that:

- ultrasonic cavitation effect on water is carried out by bubbling into it CO ₂ or air with a temperature of 75-80 ° C and excess pressure relative to the solution> 0.2 atm;

- simultaneously with the action of light photons on the solution, it is additionally exposed to high-frequency oscillations with a frequency> 60 kHz, for which the latter are selected from the general frequency spectrum of cavitation effects;

- sediment from the sump is sent to the filter press;

- purified water before exposure to it with an additional magnetic field is subjected to desalination and additional treatment with ultraviolet radiation;

- purified water before exposure to it with an additional magnetic field is subjected to mineralization and additional treatment with ultraviolet radiation.

This problem is achieved by the fact that in the installation for water purification, which contains a series-connected filter for purifying water from mechanical impurities, a suction pump, an ultrasonic unit, a sump, the upper part of which is connected to the tank for purified water, and the lower one to the sediment collector, and the device for treating water with ultraviolet radiation, in it the pump outlet is connected to its inlet through an additional ultrasonic unit, a gravel-sand filter and an electrolyzer are placed between the pump outlet and the ultrasonic unit, a light module is installed behind the ultrasonic unit, a magnetic module in front of the sump, and an additional magnetic module is placed behind the ultraviolet treatment device.

In addition, it is possible that:

- the ultrasonic unit is additionally communicated with the capacity of CO ₂ or air through the heater;

- the ultrasonic unit is made in the form of a container with a magnetostrictive transducer in it, electrically connected to the ultrasonic generator;

- the light module is made in the form of a container with a blue-green spectrum lamp, separated from the capacity of the ultrasound unit by an acoustic filter;

- at the outlet of the sediment collector a press filter is installed;

- after the device for treating water with ultraviolet radiation, a device for desalting water and a device for treating water with ultraviolet radiation are installed;

- after the device for treating water with ultraviolet radiation, a device for mineralizing water and a device for treating water with ultraviolet radiation are installed.

The selection of 1-3% of the water immediately after the pump and the impact on the water taken by ultrasound in an additional ultrasonic unit create cavitation zones in the water, which at the pump inlet create foci of coagulation for organic compounds in the treated water.

After the pump, all the water with a precipitate of organic compounds enters the gravel-sand filter, where it is purified from most of the organic compounds.

Saturation of water with iron ions to obtain a yellow-brown solution with a pH> 6 in the electrolyzer allows water with Fe ⁺ ions to be supplied to the ultrasonic cavitation block.

Carrying out cavitational action on water with Fe ⁺ ions by ultrasound in an ultrasonic unit, made in the form of a container with a magnetostrictive transducer in its bottom, electrically connected to an ultrasonic generator, we provide the input of vibrational acoustic power into the water location zone. In the cavitation mode, shockwaves are treated with collapsing water caverns, which have a pressure of up to 1000 atmospheres at the front against the background of increased concentrations of carbon, positive iron ions and negative sulfur ions. In this case, compounds of the FeS type, which take sulfur from water, now appear in the solution.

Exposure to water of 60-70 kcal / mol light photons in the light module, made in the form of a container with a blue-green spectrum light bulb, separated from the capacity of the ultrasound module only by an acoustic filter, can significantly increase the efficiency of the removal of sulfur atoms. In this case, due to the docking of the light module to the ultrasound unit through an acoustic filter that passes high-frequency oscillations with a frequency> 60 kHz, there is no need for a high-frequency ultrasonic generator. The increased number of collisions in the light module due to the action of ultrasonic wind increases the efficiency of water purification.

By passing water through a magnetic module, where it is exposed to a magnetic field, we obtain additional coagulation centers in the water.

In the sump, the coagulating solution gives accelerated sedimentation due to the dynamics during the transition of nonequilibrium to equilibrium states with the formation of sediment at the bottom of the sediment.

The treatment of purified water with ultraviolet light in a device for treating water with ultraviolet radiation can destroy microbes and viruses in the water.

Exposure to water with an additional magnetic field in an additional magnetic block allows you to return the water structure to natural.

Sparging CO ₂ or air at a temperature of 75-80 ° C with excess pressure relative to the solution> 0.2 atm to the ultrasonic unit eliminates the unpleasant odor of water and is only necessary if there is one.

By directing the sediment from the sump to the filter press, we separate the solid sediment from the water in the filter, which we re-direct to the pump inlet.

For water with a high salt content, the water, after analysis for the presence of such salts, is subjected to its desalination in a desalination device.

To obtain water of a given pleasant taste, purified water is subjected to mineralization in a device for mineralization and ultraviolet irradiation in a device for water treatment with ultraviolet radiation before additional magnetic exposure.

Figure 1 shows a diagram of an installation that implements the proposed method of integrated water treatment;

figure 2 shows a diagram of an installation that implements the proposed method of integrated water purification with devices for desalination and mineralization and additional devices for treating water with ultraviolet radiation.

The water treatment plant comprises a series-connected filter of water purification from mechanical impurities in the form of an input grid 1, a suction pump 2, a gravel-sand filter 3, an electrolyzer 4, an ultrasonic unit 5, a light module 6, a magnetic module 7, a sump 8, the upper part of which connected to a tank for purified water 9 and then to a device for treating water with ultraviolet radiation 10 and an additional magnetic module 11. The lower part of the sump 8 is connected to a sediment collector 12 and a press filter 13. The outlet of the pump 2 is connected to its entrance through an additional ultrasonic unit 14. The ultrasonic unit 5 is made in the form of a container 15 with a magnetostrictive transducer 16 in its lower part, electrically 17 connected to an ultrasonic generator 18. The light module 6 is made in the form of a container 19 with an electric lamp 20 of a blue-green spectrum, docked to the tank 15 of the ultrasonic unit 5 and separated from it by an acoustic filter 21. The ultrasonic unit 5 can be additionally communicated with the capacity of CO ₂ or air 22 through the heater 23.

Before the additional magnetic module 11, a device for desalting water 24 and / or a device for mineralizing water 25 and an additional device for treating water with ultraviolet radiation 26 can be installed.

The proposed method is implemented using the proposed device as follows. Water from the reservoir is taken by pump 2 and passed through a filter mesh 1, where water is freed from debris. Part of the water, namely 1-3% of the total flow rate, after pump 2 is taken and this water is subjected to additional ultrasonic cavitation in an additional ultrasonic unit 14, after which it is sent again to the inlet of pump 2, while foci are created at the inlet to pump 2 coagulation for organic compounds found in purified water. After pump 2, all water with a precipitate of organic compounds enters the gravel-sand filter 3, where most of the organic impurities remain on the filter. Then, in the electrolyzer 4, water is saturated with iron ions to obtain a yellow-brown solution with a pH> 6 and fed into the tank 15, where the cavitational action on the water is carried out by shock waves of collapse of water caverns, obtained in the tank 15 using a magnetostrictive transducer 16, electrically connected 17 with an ultrasonic generator 18. Cavitation effect on water is carried out in a tank 15 when sparging into a solution of CO ₂ or air from a tank 22 through a heater 23, in which the gas temperature is raised to 75-80 ° C, providing pressure relative to the solution> 0.2 atm. Already at this stage, compounds of the FeS type appear in solution.

Next, the water enters the tank 19 of the light module 6, where water is exposed to photons of light with an energy of 60-70 kcal / mol, obtained from the lamp of the blue-green spectrum 20, placed in the stream of water. Simultaneously with exposure to water by light photons, it is additionally exposed to high-frequency oscillations with a frequency> 60 kHz, for which the latter are selected from the general cavitation effect by attaching the light module 6 to the ultrasonic unit 5 and installing an acoustic filter 21 between them, which passes high-frequency oscillations into the light filter with a frequency> 60 kHz. These vibrations and the ultrasonic wind in light module 6 increase the number of molecular collisions in water. From the light module 6, water is supplied to the magnetic module 7 to obtain additional coagulation centers in water and then water is supplied to the sump 8. In it, due to the accelerated sedimentation caused by the dynamics during the transition from nonequilibrium to equilibrium states, the purified water is separated into purified water and sediment. In the sump 8, the upper layer of purified water is removed and sent to a container for purified water 9, and the precipitate from the sediment collector 12 is sent to a press filter 13. The purified water is subjected to ultraviolet radiation in the device 10, as a result of microbes and viruses in the water, die and are sent to an additional magnetic module 11, where the water structure returns to natural.

Next, water is analyzed for the content of salts and ions in it and, if necessary, before being exposed to a magnetic field in the additional magnetic module 11, they are subjected to desalination in a desalination device 24 or in a mineralization device 25 and are further treated with ultraviolet radiation in an ultraviolet water treatment device radiation 26, after which this water is magnetized in the magnetic module 11.

Claims (13)

1. The method of complex water purification, including water intake by a pump, its purification from mechanical impurities, ultrasonic cavitation impact on it, separation in the sump of purified water and sediment and subsequent treatment of purified water with ultraviolet radiation, characterized in that 1-3% of the water after the pump is selected, additional ultrasonic cavitation action is carried out on the selected water and directed to the pump inlet, before ultrasonic cavitation action, water is passed through a gravel-sand filter p and saturate it with iron ions until a yellow-brown solution with pH> 6 is obtained, after ultrasonic cavitation exposure, water is exposed to light photons with an energy of 60-70 kcal / mol and a magnetic field, and after treatment of purified water with ultraviolet radiation, they are additionally affected magnetic field. 2. The method of complex water purification according to claim 1, characterized in that the ultrasonic cavitation effect on the water is carried out by bubbling into it CO ₂ or air with a temperature of 75-80 ° C and an excess pressure relative to the solution of more than 0.2 atm. 3. The method of complex water purification according to claim 1, characterized in that at the same time as exposure to the solution by photons of light, it is additionally exposed to high-frequency vibrations with a frequency of more than 60 kHz, for which the latter are selected from the general frequency spectrum of cavitation exposure. 4. The method of integrated water treatment according to claim 1, characterized in that the sediment from the sump is sent to a filter press. 5. The method of complex water purification according to claim 1, characterized in that the purified water is subjected to desalination before exposure to it with an additional magnetic field and is further treated with ultraviolet radiation. 6. The method of complex water purification according to claim 1, characterized in that the purified water is subjected to mineralization before being exposed to it with an additional magnetic field and is further treated with ultraviolet radiation. 7. Installation for water purification, containing a series-connected filter for purifying water from mechanical impurities, a suction pump, an ultrasonic unit, a sump, the upper part of which is connected to a tank for purified water and a device for treating water with ultraviolet radiation, and the lower one to a sediment collector, characterized the fact that the pump output is connected to its input through an additional ultrasonic unit, a gravel-sand filter and an electrolyzer are placed between the pump output and the ultrasonic unit, behind the ultrasonic unit th light module is installed in front of a sump mounted magnetic module, and for a device for treating water with ultraviolet radiation is placed an additional magnetic module. 8. Installation for water purification according to claim 7, characterized in that the ultrasonic unit is additionally communicated with a capacity of CO ₂ or air through a heater. 9. Installation for water purification according to claim 7, characterized in that the ultrasonic unit is made in the form of a container with a magnetostrictive transducer in it, electrically connected to an ultrasonic generator. 10. Installation for water purification according to claim 7, characterized in that the light module is made in the form of a tank with a blue-green spectrum lamp, separated from the capacity of the ultrasonic unit by an acoustic filter. 11. Installation for water purification according to claim 7, characterized in that a press filter is installed at the outlet of the sludge collector. 12. Installation for water purification according to claim 7, characterized in that in front of the additional magnetic module is installed a device for desalting water and an additional device for treating water with ultraviolet radiation. 13. Installation for water purification according to claim 7, characterized in that in front of the additional magnetic module is installed a device for mineralizing water and an additional device for treating water with ultraviolet radiation.

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