Method of antibacterial treatment of stream of liquid medium and device for realising said method

FIELD: chemistry.

SUBSTANCE: method involves acting on a liquid vortex flow with magnetic and electric fields and creation of an ion concentration gradient. The electric field induces the magnetic field, the magnetic induction vector of which is perpendicular to the velocity vector of the liquid stream. Concentration of hydroxonium ions and bacteria cells in the local volume of liquid are increased. The device has a cylindrical and a conical part, a tangential inlet pipe, joined to the cylindrical part, and magnets. The device has rings, fitted with gaps between them in the conical part. The magnets are attached to the rings. Magnets on neighbouring rings have different poles and create an induced magnetic field in the liquid moving in the gaps. Concentration of hydroxonium ions (low pH) and bacteria cells in the same volume (at the outer wall) increase in the device, which leads to extermination of bacteria.

EFFECT: saving on chemical reagents-bactericides, improved environmental friendliness of industrial production and hygienic conditions in everyday life.

2 cl, 5 dwg, 3 tbl

 

The inventive method relates to magneto-hydrodynamic treatment of process fluids and can be used, for example, to suppress the activity of bacteria in the technological liquids and can be used in various industries.

The known method of chemical control bacteria, consisting in the supply of chemical reagents bactericides in the technological environment and the method of assessment [EP 39-3-973-83 "Methods of control of contamination of oil-field waters and evaluation of protective and bactericidal action of reagents"].

The disadvantage of this method is the necessity of installation of metering devices, power supply, high cost of acquisition bactericides that adversely affect the safety and sustainability of technological environments and health service staff.

The known method bactericidal treatment environment with ultraviolet rays and ultrasound [Gerasimenko A.A. Protect machines from biodeterioration. M: mechanical engineering, 1984, - 112 C.].

The disadvantage of this method is the limited use (only for transparent and/or single-phase environments), the necessity of using complex and expensive equipment for treatment of the whole environment, as well as significant energy consumption.

Known results about the development of water magnetic field [N.G. Ibragimov, Khafizov, A.R., Saidakov CENTURIES and other Complications in oil production. The Ufa. The Publishing house of scientific and technical literature "Monograph", 2003, - 302 S.], which makes use of the device by RF patent for useful model №38469, the technical result which is in some antibacterial effect. However this there is a decrease in the number of bacterial cells per unit volume in a magnetic field is insufficient, the process and the effect of random and unregulated and this device cannot be used for the purposes of antibacterial processing technological environments.

The prototype of the proposed method is the method and the device for bacterial treatment fluid [EN 2001117627 A1, CL 02F 1/48, 27.05.2003], which is characterized by the use of a magnetic field, electric field and centrifugal forces.

A prototype of the proposed method is not effective enough and not enough technological due to the necessary synchronization vectors of electric and magnetic fields, the need for electricity.

The disadvantage of this method is the low efficiency of antibacterial processing environment.

The absolute velocity of ions in water is extremely dilute solutions have a value of 4·10-8up to 8·10-8m2/·Except ions H3About+and HE-[A.G. Stromberg, Semchenko D.P. Fizi is a mini-chemistry. The textbook. for chem. spec. higher education institutions. Edited Agustable. - 4th ed. Corr. - M.: Higher. HQ., 2001, - 527 S.]. The highest absolute velocities have hydronium ions and hydroxylThis is because the movement of ions N3O+and HE-the solution is on special, so-called relay mechanism, which is that between hydronium ions H3O+and water molecules and between water molecules and ions of HE-continuously exchanged by protons in equations

Moreover, these processes occur with such rapidity that the average duration of the ion H3O+equal to 10-11C.

The problem is solved in that the inventive method of processing fluids, including the influence of magnetic and electric fields and the creation of a concentration gradient of ions, characterized in that the magnetic field and induced them electric field is carried out on the swirling flow of process fluid, and a gradient of the concentration of hydronium ions and bacterial cells so as to simultaneously improve their concentration in the same local scope.

Solved by the invention of the task and the expected technical result are in point is improving the efficiency of bactericidal processing flow of process fluid. The inventive method technological, since it does not require the creation of complex equipment and power supply, simple in hardware design and safe in the processing flow of flammable liquids. There is no need of synchronization vectors of electric and magnetic fields, since the electric field is induced by the static magnetic field.

In the proposed method, the relative position of the magnetic induction vector and the velocity vector of the flow of process fluid such that induced electric field was moved hydronium ions in the same direction as the cells of bacteria, which move under the influence of centrifugal force in the swirling flow of process fluid.

The method is performed by the following sequence of operations:

1. The impact on the flow of process fluid by a magnetic field.

2. The impact on the flow of process fluid induced by an electric field.

3. The impact on the flow of process fluid twisting device, so that the increased concentration of bacterial cells at the outer wall.

4. Forming in the flow of process fluid gradient of the concentration of hydronium ions, increasing their concentration at the outer wall, which provide

mutual arrangement ve is the Torah of the magnetic induction and the velocity vector of the flow of process fluid is such, to induced electric field was moved hydronium ions toward the outer wall.

Implementation of the proposed method is possible with the passage of process fluid with velocity V>0 through a magnetic field, the magnetic induction vector of which is perpendicular to the velocity vector of the flow of process fluid.

In each unit cell the fluid moving with velocity V>0 in a magnetic field, induced electric current.

It is known [Savelyev I. General physics Course, vol. 2. Electricity and magnetism. Waves. Optics. M.: Nauka, 1978, 480 S.]that the motion of charged particles and ions they will act in a magnetic field the Lorentz forcethe value of which depends on the charge (q), speed (V) and magnetic field (B). On positively and negatively charged particles will act the Lorentz force in opposite directions.

If we consider an infinitely small unit volume of fluid when the flow of fluid to the contained single charge operates the electromagnetic Lorentz force ƒ=uB, directed perpendicular to the velocity vector of the flow of process fluid and the magnetic field vector. Under the action of this force [Branover GG, Zinober A.B. incompressible magnetohydrodynamics with the unit The main edition of physico-mathematical literature publishing house "Nauka", M., 1970, 380 S.] there is a separation of charges, there is an electric potential difference between the corresponding regions of the flow of process fluid; therefore, creates an electric field with intensity E, directed parallel to the force ƒ but in the opposite direction.

Density currents flowing in the liquid, it is easy to calculate Ohm's law j=σVB.

Here σ is the electrical conductivity of the liquid.

The direction vector of the induced electric current is determined by the left-hand rule [Elementary physics: a tutorial. 3 tpod edition Gstandard. Vol.2 Electricity and magnetism. - 10th ed. - M.: Nauka. The main edition of physico-mathematical literature, 480 S.], therefore, the vector E is perpendicular vectors of magnetic induction and the rate of flow of process fluid.

It is known that bacteria cultures, particularly sulfate-reducing bacteria (SRBs), able to grow at pH 4.2 to 10.5. The application developed by the authors way of magnetohydrodynamic processing (MGDA) liquid media allows you to change the pH in the local volume. The twisting of the flow through the hydrocyclone, guides, or other devices will allow you to press the bacteria with higher density than W is dcost to the wall, near which creates a magnetic field with the direction of lines of magnetic induction to induced electric current carrying hydronium ions to the wall.

The inventive method can be carried out, for example, according to the scheme given in figure 1.

Figure 1 shows a diagram of the method of the claimed antimicrobial treatment: where in the form of a cylindrical surface depicts the wall, which is the twisting of the liquid. The liquid is supplied with the speed and direction of the vector V in a magnetic field generated by the magnetic fields (UTIS), which are shown as dark horizontal planes. The polarity of the PULSE indicated by the letters S and N. In passing the fluid through a magnetic field is induced by the current I (movement of positively charged ions towards the cylindrical surface. Simultaneously, the flow of process fluid under the action of centrifugal force F mechanical impurities and bacteria move in the same direction - to the surface. While near the surface occurs a sharp increase in the concentration of positive ions and bacteria, i.e. locally sharply reduced the pH of the liquid and exposed to the same amount of bacteria are destroyed.

The implementation of how bacterial treatment can be carried out by a device, the most blinkink which is a device for RF patent [No. 2293707]. This way of handling corrosive environment, including the influence of magnetic and electric fields and the creation of a concentration gradient of ions, characterized in that the magnetic field and induced them electric field is carried out on the flow of the corrosive environment, and create a concentration gradient of ions-depolarizers to reduce their concentration in Korroziya surface.

The disadvantage of this invention is the inability to obtain an antibacterial effect.

Delivered by the claimed method the problem of antibiotic treatment is implemented, for example, the device of figure 2.

The device of figure 2 consists of the following parts:

1. Flange to drain sludge;

2. Conical part to expedite traffic flow;

3. Bracket for holding rings with magnets;

4. The permanent magnet;

5. Ring;

6. Flange connection parts;

7. The flange for the filing of the environment;

8. Cast cover;

9. Plug-in outlet for a purified environment;

10. Knee-flange for discharge of treated environment;

11. Gasket rubber sealing;

12. Cylindrical part.

The device operates as follows: the fluid enters the nozzle 7, which is attached to a cylindrical portion of the device 12. In connection with tangential anchoring pipe 7, the flow of fluid priobrete the rotating movement along the walls of the device. The thread then passes into the conical part of the device 2, which becomes even more acceleration. In the conical part 2 are ring 5 with the permanent magnets 4. Ring 5 attached to the corners of the 3 special form. In the conical part of the device, the stream is processed by the magnetic field and induced electric field in the gap between the rings and goes to the bottom of the device, where the last antimicrobial treatment of the liquid rises in the plug socket 9 in the knee-elbow 10 and passes down the pipeline. If the content in the fluid flow mechanical impurities they are in the form of sludge can be removed from the device by using the flange 1.

This device processing process fluid, including the influence of magnetic and electric fields and the creation of a concentration gradient of ions, where the magnetic field and induced them electric field is carried out on the flow of process fluid, and create a concentration gradient of ions to change their concentration at the surface, characterized in that a simultaneous twisting flow and centrifugal force presses to the outer wall of the unit cells of bacteria. The device is achieved by increasing the concentration of hydronium ions (low pH) or hydroxyl ions (high pH) and bacterial cleto is in the same volume (at the outer wall), which leads to the destruction of bacteria.

The housing and the partition device for implementing the method can be made non-magnetic (diamagnetic)and magnetic (ferro - and paramagnetic) material, in the latter case between the casing and the partitions should be a gap of non-magnetic material to prevent a possible reduction in the values of the magnetic induction in the formation of the body of the magnetic core.

The magnets on adjacent partitions of different (figure 2) to ensure the penetrating amount of the process liquid of the magnetic field.

The device of figure 2 is intended for implementing the method antibacterial treatment process fluids contaminated with an organic phase and mechanical impurities.

For maximum antibacterial effect, you can use a cascade of devices with magnetic inserts.

Example 1 - modeling bactericidal treatment of the internal environment of the conduits, pipelines, where the twisting flow is the installation of the hydrocyclone in Figure 2.

For a quantitative estimation of bacteria, including sulfate-reducing bacteria (SRBs) (hereinafter bacteria) in the analyzed environments used widely known method of limiting dilutions [OST 39-151-83].

The essence of the method consists in ODA is the division of the number of bacteria in 1 ml of the sample.

Determining the number of bacteria by the method of limiting dilution includes a serial tenfold dilution of the sample in a nutrient medium, recording the presence or absence of bacterial growth in vials after the incubation in a thermostat and calculate the most probable number of bacteria cells contained in 1 ml of the original sample.

Table 1 shows the results of growing bacteria in samples (vials).

After processing, the process liquid in the device of figure 2 were obtained the results of table 2.

Example 2 - simulation of bactericidal treatment of the internal environment of the conduits, pipelines, where the twisting flow occurs mounting ring pipe section.

Example 2 is carried out by the device of figure 1.

The results of antibacterial treatment in this device are shown in Table 3.

Method and device for its implementation more efficient and more technologically advanced prototypes, industrially applicable in all industries, where necessary bactericidal treatment of technological environments. Using the proposed method and devices for bacterial treatment of liquids you can save money on chemical agents bactericides, to improve the environment of industrial production and hygiene services is generally in everyday life.

Table 1
The number of the vial, which marked the growth of bacteriaBreedingThe most probable number of bacteria in the original sample, cells/ml
11:10from 1 to 10
21:100more than 10 and up to 100
31:1000over 100 and up to 1000
41:10000over 1000 up to 10000
51:100000over 10,000 and up to 100,000
61:1000000over 100,000 and 1,000,000

Table 2
The number of the vial, which marked the growth of bacteriaWithout MGDOAfter MGDO
1--
2--
3+-
4+-
5+-
6+-
7+-
8--

6
Table 3
The number of the vial, which marked the growth of bacteriaWithout MGDOAfter MGDO
1--
2--
3+-
4+-
5+-
+-
7++
8++

1. Method antibacterial treatment fluids, including the effects of magnetic and electric fields of the swirling fluid flow and creating a concentration gradient of ions, characterized in that the electric field induce a magnetic field, the magnetic induction vector of which is perpendicular to the velocity vector of the swirling fluid flow, thus increase the concentration of hydronium ions and bacteria cells in the local volume of the liquid.

2. Device for bacterial treatment liquid, comprising a cylindrical and a conical portion, a tangential inlet pipe connected to the cylindrical portion, and a magnet, wherein the device is provided with a ring set with a gap to each other in the conical part, the magnets attached to the rings, and the magnets on adjacent rings of different and create a fluid, moving in the gaps of the induced electric field.



 

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