RU2494975C1 - Device for obtaining disinfectant solution - Google Patents

Abstract

FIELD: chemistry.

SUBSTANCE: invention relates to devices for obtaining disinfectant solutions and can be used in different fields of technology, as well as in agriculture. Device for obtaining disinfectant solution contains at least one electrochemical cell, made from vertical rod electrodes 9 and 10, semipermeable diaphragm 2, which divides cell into anode 3 and cathode 4 chambers with channels for supply 12 and discharge 5 of processed solution, ozone generator 16, connected with anode chamber of electrochemical cell by means of connecting pipeline 18, distributor of ozone-air mixture 17, located on the bottom of anode chamber under electrode, its destructor 14, connected with electrochemical cell by means of connecting plate 20, and compressor 19 for supply of air into ozone generator.

EFFECT: increase if disinfecting effect, obtaining solutions with specified redox parameters in wide range and different values of pH.

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Description

The invention relates to a device for producing disinfectant solutions and can be used in various fields of technology, including in agriculture.

A device is known that contains at least one electrochemical cell made of vertical coaxial cylindrical and rod electrodes installed in dielectric bushings, with a coaxial ceramic ultrafiltration diaphragm mounted on the bushings between the electrodes and dividing the interelectrode space into the electrode chambers, with channels for supply and removal of the treated solution to the electrode chambers in the lower and upper bushings, respectively, current source, positive and negative the negative pole of which is connected to the electrodes, the supply line of the solution to be treated is connected to the negative electrode chamber, the output of the negative electrode chamber is connected by an additional line to the entrance to the positive electrode chamber, and this line is equipped with a device to enable the removal of part of the degassed treated solution from the negative electrode chamber. On a special line, a container with a catalyst is installed with an entrance at the top and an exit at the bottom, a container with a catalyst contains a mixture of carbon particles and manganese dioxide, a device for removing a degassed treated solution is made, for example, in the form of a separator with a tangential input, and a device for supplying and the outlet of the treated solution is made in the form of collectors and is equipped with means for parallel connection of two or more cells (see RU 2088539, C02F 1/46).

The disadvantages of this design are the limited capabilities of the device, not allowing to obtain solutions with a given redox potential in a wide range, low productivity.

Closest to the proposed invention and taken as a prototype is a device that contains at least one electrochemical cell made of electrodes placed in electrode chambers and separated by a diaphragm. In the lower and upper parts of the chambers, respectively, channels are made for supplying and discharging the treated solution, connected respectively to the cathode and anode chambers. The device contains a current source, the positive and negative poles of which are connected to the electrodes, a gas separator installed on the drain line of the treated solution from the negative electrode chamber (see RU 2238909, C02F 1/46).

The disadvantages of this design are its complexity, insufficiently high disinfecting effect of the resulting solutions.

The technical result achieved by using the claimed invention is to obtain solutions with a given redox potential in a wide range and various pH values, with a high disinfecting effect.

The specified technical result is achieved in that the device for producing a disinfectant solution containing at least one electrochemical cell made of vertical rod electrodes, a semipermeable diaphragm that divides the cell into anode and cathode chambers with channels for supplying and discharging the treated solution, according to the invention, has a generator ozone connected to the anode chamber of the electrochemical cell by means of a connecting pipe, the ozone-air mixture distributor is located first at the bottom of the anode compartment under the electrode and its destructor connected to the electrochemical cell connecting plate and a compressor for supplying air to the ozone generator.

The novelty of the invention lies in the fact that in order to increase the disinfecting effect, as well as to obtain solutions with predetermined redox parameters in a wide range and various pH values during electrolysis, water in the anode chamber of the electroactivator is ozonized by ozone, which is an environmentally friendly oxidizer obtained from air . Thus, a solution with high disinfecting properties is obtained at the output without adding any saline solutions.

The proposed technical solution is illustrated by the drawing, where in Fig.1. shows a General view of the device for obtaining a disinfectant solution.

The inventive device comprises a housing 1, a semi-permeable diaphragm 2 made of tarpaulin attached to its bottom, which divides the housing 1 into the anode 3 and cathode 4 of the chamber with drain valves 5 to discharge water from them, and is connected to a cover 6 of dielectric material having insulators 7 into which, through connecting rods 8, vertical rod electrodes of stainless steel 9 (cathode) and coal 10 (anode) are screwed and connected to a constant current source 11, filling holes 12 for supplying water to the anode 3 and cathode 4 of the chamber, and also connecting connecting fittings 13 for connecting the anode chamber 3 with the ozone mixture destructor 14 having an exhaust valve 15, an ozone generator 16 and an ozone-air mixture distributor 17, through connecting pipelines 18. A compressor 19 serves to supply air to the ozone generator 16, and a connecting plate 20 for connecting the destructor of the ozone-air mixture 14 with the housing 1.

The device operates as follows: in the cathode 4 and anode 3 chamber, water is poured through the filler holes 12. When water reaches the cathode 4 and anode 3 chambers of the required level, a constant voltage is supplied to the electrodes 9 and 10 from a constant current source 11, where it is possible to adjust the magnitude of the current and voltage. There is a process of electrolysis of water. Due to the fact that there is a removable diaphragm 2 made of tarpaulin between the electrodes 9 and 10, the electrolysis products formed in the anode 3 and cathode 4 chambers are not mixed. Anolyte is formed at anode 10, and catholyte at cathode 9. 12 minutes before the end of the electrolysis, the ozone generator 16 and the compressor 19 feed the ozone-air mixture through the connecting pipe 18 to the distributor 17, which is evenly located at the bottom of the anode chamber 3. As a result, the ozone-air mixture activates the water activated in the anode chamber.

Thanks to the ozonation of electroactivated water by ozone, solutions are obtained with a strong disinfecting effect without the addition of saline solutions (e.g. sodium chloride). So, for example, experiments were conducted at the KubSAU at the Department of Electric Machines and Electric Drives to study the effect of the resulting disinfectant solution on the inventive installation and on the prototype installation in the treatment of bee bacterioses.

A comparison of the action of both solutions is given in table 1 from which it can be seen that the inventive device has higher characteristics in comparison with the prototype.

Table 1 Comparison of the characteristics of the claimed device and prototype Characteristic Prototype The inventive device The survival rate of Escherichia coli,% 74% one hundred% pH 2-12.5 2-13 ORP, mV from -900 to +1100 from -1100 to +1200 Resource of continuous work, h 10,000 18000

Claims (1)

A device for producing a disinfectant solution containing at least one electrochemical cell made of vertical rod electrodes, a semi-permeable diaphragm that divides the cell into an anode and cathode chambers with channels for supplying and discharging the treated solution, characterized in that it has an ozone generator connected to the anode the chamber of the electrochemical cell by means of a connecting pipe, the ozone-air mixture distributor located at the bottom of the anode chamber under the electrode, and its destruction Op connected to the connecting plate electrochemical cell and a compressor for supplying air to the ozone generator.