Method of disinfecting vehicles and containers after transporting livestock cargo

FIELD: chemistry.

SUBSTANCE: invention relates to agriculture and is meant for disinfecting vehicles and containers after transporting livestock cargo. The method involves treating vehicles and containers with a disinfectant. The disinfectant contains a solution of oxidants and additionally propylene glycol, sodium nitrite, sodium benzoate, products of reaction of glycerol with formic acid, with the following ratio of components, wt %: propylene glycol - 0.9-7.5, sodium nitrite - 0.27×10-3-16.5×10-3, sodium benzoate - 1.35×10-3-82.5×10-3, products of reaction of glycerol with formic acid - 0.18×10-3-11.0×10-3, solution of oxidants - the balance. The solution of oxidants is synthesised from 10.0-20.0% sodium chloride solution subjected to dc current with intensity which enables to achieve pH 7-8, concentration of active chlorine of 0.5-0.7% and redox potential of +1000±50 mV. Treatment is carried out once with consumption of the disinfectant of 0.15-0.25 l/m2 with exposure of 55-65 min; immediately after treating with the disinfectant, the surface of the vehicles and containers is further exposed for 30-60 min with constant UV radiation with wavelength of 254±5 nm with a dose of 12.8-25.6 J/cm2.

EFFECT: high efficiency of disinfecting vehicles and containers after transporting livestock cargo.

4 tbl, 3 ex

 

The alleged invention relates to agriculture, in particular animal, and can be used for disinfection of the cargo compartments of vehicles (cars, refrigerated and covered railway wagons, ships, aircraft and containers after the transportation of animals, raw materials and products of animal origin, as well as other objects veterinary supervision.

There is a method of disinfecting vehicles and containers after livestock transportation of cargoes, including the processing of disinfectant containing active chlorine with subsequent exposure (patent RF №2403916. IPC A61L 2/16. Bull. No. 32.) [prototype]. The known method of disinfection includes processing a disinfectant containing active chlorine, synthesized from 10-20%aqueous solution of sodium chloride, is subjected to a constant electric current of intensity, ensuring a pH of 7-8, the active chlorine concentration of 0.7-0.9% and the redox potential of +1000±50 mV, and the treatment is carried out twice at 15-20°C at a rate of 0.5-1.0 l/m2interval 90-95 minutes followed by exposure 90-95 minutes

However this drug is not effective enough and corrosionprotection in relation to construction materials vehicles and containers made of solid is a metallic (requires corrosion inhibitor). In addition, to ensure 100% disinfection of surfaces of objects requires a two-fold application of the drug every 90-95 minutes at exposition 90-95 minutes, which amounts to 180-190 minutes and increases the duration of the process of the veterinary-sanitary treatment. The dose of the solution is 0.5-1.0 l/m2and double coating increases the consumption of the disinfectant and, accordingly, increases the energy consumption for the installation of AQUACHLOR", and increases labor costs.

The technical objective of the proposed invention is the simplification of the method and its efficiency.

The technical effect is achieved in a method of disinfecting vehicles and containers after livestock transportation of cargoes, including the processing of disinfectant containing solution oxidants, synthesized from 10,0-20,0%-aqueous solution of sodium chloride, is subjected to a constant electric current of intensity, ensuring a pH of 7-8, and redox potential of +1000±50 mV with subsequent exposure, characterized in that the disinfectant further comprises propylene glycol, sodium nitrite, sodium benzoate, products of the interaction of glycerol and formic acid in the following ratio of components, wt.%:

Propylene glycol- 0,9-7,5
Sodium nitriteis 0.27×10-3-16,5×10-3
Sodium benzoate- 1,35×10-3-82,5×10-3
The products of the interaction of glycerol- 0,18×10-3-11,0×10-3

formic acid

A solution of oxidants, synthesized from

10,0-20,0%-aqueous solution of sodium chloride,

subjected to constant

electric current intensity,

ensuring the achievement of the values of pH 7-8,

the active chlorine concentration of 0.5-0.7%

redox potential

+1000±50 mVrest

moreover, the treatment is carried out once at a flow rate of the disinfectant of 0.15-0.25 l/m2with exposure 55-65 min, immediately after spraying disinfectant surface vehicles and containers additionally irradiated within 30-60 min constant ultraviolet radiation at a wavelength of 254±5 nm at a dose of from 12.8 to 25.6 j/cm2.

The products of the interaction of glycerol Moore is linoy acid is known (patent RF №2296790, IPC SC 5/10, bull. No. 3, 2007).

The method of applying a solution of oxidants may be different (wet or aerosol processing and the like), and is determined by the requirements of the solved task - the amount of pollution, their character.

In the patent and scientific literature is not found technical solutions similar to declare, therefore, presents a technical solution meets the criterion of "novelty".

To obtain a solution of oxidants used to install "AQUACHLOR" performance oxidants 30 g/h, which has a fundamentally new technological process of ion-selective electrolysis with diaphragm, providing complete separation of the original salt solution with a concentration of from 800 to 250 g/l in modular reactor TEM-7 for one cycle of testing (without returning to the regeneration of the anolyte, without freezing salt from Catolica and no refund salt in the process without the addition of acid in the anode circuit, without high-quality purification of saline solution) on a damp mixture of gaseous oxidants (chlorine, chlorine dioxide, ozone) and a solution of sodium hydroxide (NaOH) concentration of 150-170 g/l when the degree of conversion of salt from 98 to 99.5%. The gaseous mixture of oxidants is mixed in the mixer with water, giving a solution of oxidants (1.0-1.5 g/l), which is used for disinfection of various objects (including the transponder is bound funds).

Required space for installation of not less than 3.0 m2(including space for maintenance).

Therefore, the proposal meets the criterion of "inventive step".

In addition, all used in the manufacture of components, and sources of ultraviolet radiation (e.g., bactericidal lamp type DB-30; DB-60 irradiators type OBN, OAC) produced by the domestic industry and therefore offer industrial feasible".

The invention is illustrated by the following examples.

Example 1. Mixed with 0.9 g of propylene glycol, of 0.27×10-3g of sodium nitrite, is 1.35×10-3g sodium benzoate, 0,18×10-3g products of interaction of glycerol and formic acid and added dropwise to 100 g of the solution of oxidants, receiving structure 1 in the following ratio, wt.%:

Propylene glycol- 0,9
Sodium nitriteis 0.27×10-3
Sodium benzoateis 1.3×10-3
The products of the interaction of glycerol- 0,18×10-3

formic acid

A solution of oxidants, synthesized from

10,0%-aqueous solution of sodium chloride,

subjected to constant

electric current intensity,

ensuring the achievement of pH 7,

concentrations of oxidants 0.5% and oxidation-

reduction potential +950 mV- the rest.

A solution of oxidants are installed AQUACHLOR".

Disinfectant substance was sprayed on the surface of the object by means of a spray AO-1, and the treatment is carried out once at 15°C at a rate of 0.15 l/m2with the exposure time of 55 minutes

Immediately after spraying disinfectant surface vehicles and containers additionally irradiated for 30 minutes constant ultraviolet radiation at a wavelength of 254±5 nm at a dose of 12.8 j/cm2.

The results of bacteriological quality control of disinfection is presented in table 1. The effectiveness of this method in a double application at 15-20°C at a rate of 0.5 l/m2every 90 minutes, followed by the exposure time of 90 minutes was 99.75%.

Example 2. Mix of 4.2 g of propylene glycol, 8,39×10-3g of sodium nitrite, 41,93×10-3g sodium benzoate, 5,59×10-3g products of interaction of glycerol and formic acid and added dropwise to 100 g of the solution of oxidants, olucha part 2 in the following ratio of components, wt.%:

Propylene glycol- 4,2
Sodium nitrite- 8,39×10-3
Sodium benzoate- 41,93×10-3
The products of the interaction of glycerol- 5,59×10-3

formic acid

A solution of oxidants, synthesized from

15,0%-aqueous solution of sodium chloride,

subjected to constant

electric current intensity,

ensuring the achievement of the pH-value of 7.5

the concentration of active chlorine solution oxidants 0,7%

and redox potential

+1000 mV- the rest.

A solution of oxidants are installed AQUACHLOR".

Disinfectant substance was sprayed on the surface of the object by means of a spray AO-1, and the treatment is carried out once at 20°C at the rate of 0.2 l/m2with an exposure time of 60 minutes

Immediately after spraying disinfectant surface vehicles and containers additionally irradiated for 45 minutes constant UV) is rising at a wavelength of 254±5 nm at a dose of 19.2 j/cm 2.

The results of bacteriological quality control of disinfection is provided in table 2. The effectiveness of this method in a double application at 20°C based 0,75 l/m2with an interval of 92.5 min followed by exposure of 92.5 minutes was 100.0%.

Example 3. Mixed with 7.5 g of propylene glycol, 16,5×10-3g of sodium nitrite, 82,5×10-3g sodium benzoate, 11,0×10-3g products of interaction of glycerol and formic acid and added dropwise to 100 g of the solution of the oxidant receiving part 3 in the following ratio, wt.%:

Propylene glycol- 7,5
Sodium nitrite- 16,5×10-3
Sodium benzoate- 82,5×10-3
The products of the interaction of glycerol- 11,0×10-3

formic acid

A solution of oxidants, synthesized from

20,0%-aqueous solution of sodium chloride,

subjected to constant

electric current intensity,

ensuring the achievement of pH 8

the concentration of active chlorine solutions

oxidants 0.6% and oxidation-

reduction potential +1050 mV- the rest.

A solution of oxidants are installed AQUACHLOR".

Disinfectant substance was sprayed on the surface of the object by means of a spray AO-1, and the treatment is carried out once at 25°C. the calculation of 0.25 l/m2with the exposure time of 65 minutes

Immediately after spraying disinfectant surface vehicles and containers additionally irradiated for 60 minutes continuous ultraviolet radiation at a wavelength of 254±5 nm at a dose of 25.6 j/cm2.

The results of bacteriological quality control disinfection reflected in table 3. The effectiveness of this method in a double application at 25°C based 1,0 l/m2interval 95 min followed by exposure to 95 minutes was 100.0%.

Thus, the proposal allows, in comparison with the prototype, to improve disinfection efficiency by reducing the exposure and reduce the consumption of the drug in comparison with the known method 4 times, this reduces energy and labor costs 2.5 times. Loss from corrosion are reduced by 100%. Consumption of table salt is about 2.5 times less.

To obtain solutions of oxidants do not want to factory conditions as domestic setting "AQUACHLOR can ustanavli is sterile without the performance of design and construction works, existing object hydraulic and electrical networks, i.e. the sentence "industrially applicable". Installation requires a minimum flow rate of NaCl - 50-100 g/l, power - 0,9-1,75 kW-HR/kg

Table 4 presents the data determine the corrosion losses for various metals when using the known and proposed methods of disinfection. As can be seen from the results, the present invention can significantly reduce corrosion loss using a solution of oxidants or completely to prevent them.

Thus, the proposed solution allows you to simplify the way (the treatment is carried out only once instead of twice carrying out according to a known method), increases its efficiency (reduced consumption of disinfectant on 60-400%). In addition, the proposed solution prevents corrosion effect of the applied disinfectant to 98-100%.

Table 1
The results of bacteriological quality control disinfecting vehicles and containers part 1 and UV-irradiation
The name of the object surfaceThe colonization of the surface is S. aureus, CFU/cm2
Before disinfection, M±mAfter disinfection, M±mThe efficiency of disinfection, %
Wall of the container (metal, n=6)(8,1±0,001)·10381,7±0,001*99,99
The vehicle (metal)(22,8±0,01)·103684,4±1,8*of 99.97
Wall of the car (metal) p=6(4,25±0,01)·10385,0±0,1*of 99.98
Outdoor grill of the car (metal, n=6)(15,50±0,02)·1044500±5,0*of 99.97
Average:of 99.75
The placeholder
Wall of the container (metal, n=6)(8,1±0,001)·103243,8±8,0of 99.97
The vehicle (metal)(22,8±0,01)·103 8436,7±76,199,63
Wall of the car (metal) p=6(4,25±0,01)·1032210,9±15,199,46
Outdoor grill of the car (metal, n=6)(15,50±0,02)·10412400,0±30,099,92
Average:99,745
*) - R<0,005

Table 2
The results of bacteriological quality control disinfecting vehicles and containers part 2 and the ultraviolet irradiation
The name of the object surfaceThe colonization of surfaces S.aureus, CFU/cm2
Before disinfection, M±mAfter disinfection, M±mThe efficiency of disinfection, %
Wall of the container (metal, n=6)(8,1±0,001)·1030The vehicle (metal)(22,8±0,01)·1030100,0
Wall of the car (metal) p=6(4,25±0,01)·1030100,0
Outdoor grill of the car (metal, n=6)(15,50±0,02)·1040100,0
Average:100,0
The placeholder
Wall of the container (metal, n=6)(8,1±0,001)·1030100,0
The vehicle (metal)(22,8±0,01)·1030100,0
Wall of the car (metal) p=6(4,25±0,01)·1030100,0
Outdoor grill of the car (metal, n=6)(15,50±0,02)·1040 100,0
Average:100,0

Table 3
The results of bacteriological quality control disinfecting vehicles and containers part 3 and the ultraviolet irradiation
The name of the object surfaceThe colonization of surfaces S. aureus, CFU/cm2
Before disinfection, M±mAfter disinfection, M±mThe efficiency of disinfection, %
Wall of the container (metal, n=6)(8,1±0,001)·1030100,0
The vehicle (metal)(22,8±0,01)·1030100,0
Wall of the car (metal) p=6(4,25±0,01)·1030100,0
Outdoor grill of the car (metal, n=6)(15,50±0,02)·10 0100,0
Average:100,0
The placeholder
Wall of the container (metal, n=6)(8,1±0,001)·1030100,0
The vehicle (metal)(22,8±0,01)·1030100,0
Wall of the car (metal) p=6(4,25±0,01)·1030100,0
Outdoor grill of the car (metal, n=6)(15,50±0,02)·1040100,0
Average:100,0

Table 4
Corrosion loss (corrosion rate, mm/year) at T=20°C for samples of metal in the form of test plates
Metal The consumption of disinfectants
The prototype,
1.0 l/m2
Composition 1,
0.25 l/m2
Part 2,
0.25 l/m2
Part 3,
0.25 l/m2
Alloy AMG-60,80,00900
Steel 30,90,0100
Steel 451,00,0200

Method of disinfecting vehicles and containers after livestock transportation of cargoes, including the processing of disinfectant containing solution oxidants, synthesized from 10,0-20,0%-aqueous solution of sodium chloride, is subjected to a constant electric current of intensity, ensuring a pH of 7-8, and redox potential of +1000±50 mV with subsequent exposure, characterized in that the disinfectant further comprises propylene glycol, sodium nitrite, sodium benzoate, food interaction glyceri is and with formic acid in the following ratio of components, wt.%:

Propylene glycol0,9-7,5
Sodium nitrite0,27·10-3-16,5·10-3
Sodium benzoate1.35m·10-3-82,5·10-3
The products of the interaction of glycerol
formic acid0,18·10-3-11,0·10-3
A solution of oxidants, synthesized from
10,0-20,0%-aqueous solution of sodium chloride,
subjected to constant
electric current intensity,
ensuring a pH of 7-8,
the active chlorine concentration of 0.5-0.7%
redox potential
+1000±50 mVthe rest,

moreover, the treatment is carried out once at a flow rate of the disinfectant of 0.15-0.25 l/m 2with exposure 55-65 min, immediately after spraying disinfectant surface vehicles and containers additionally irradiated within 30-60 min constant ultraviolet radiation at a wavelength of 254±5 nm at a dose of from 12.8 to 25.6 j/cm2.



 

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3 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to decontamination of water or any other fluid. Proposed method consists in irradiating stationary or moving fluids by UV-radiation of semiconductor LEDs. Said radiation is introduced into fluid to be decontaminated with the help of flexible quartz waveguide is bent many times on radius r ≤ Rd, where Rd is band radius whereat conditions of complete disturbance of internal reflection for operating mode in the case of single-mode fiber or modes that carry major fraction of radiation in the case of multi-mode fiber. Proposed device comprises at least one UV-range LED and at least one flexible optical waveguide bent as described above.

EFFECT: reduced power consumption at sufficient radiation dose.

8 cl, 7 dwg

FIELD: chemistry.

SUBSTANCE: invention is meant for disinfecting domestic, industrial and waste water and can be used in water supply systems. The apparatus for disinfecting water using ultraviolet radiation has an outer cylindrical case made from stainless steel (1) with a tangential water inlet and outlet and inner quartz cylindrical jacket (2) with a low pressure electrodeless discharge lamp sealed inside, where the said lamp has a quartz gas-discharge envelope (3) filled with inert gas and mercury vapour. The quartz gas-discharge envelope (3) is in form of a torus with one or more ferrite cores (4) with a primary winding made in form of one or more coils connected to a high frequency power supply. The apparatus is also fitted with pipes (7) for flushing the system.

EFFECT: invention increases safety and output of the apparatus while simplifying its design.

1 dwg

FIELD: medical engineering.

SUBSTANCE: device has frame for holding radiation source. The frame is configured for mounting objects on single end only. Mounting bracket is also available for receiving the mounting frame end for mounting the frame on supporting structure surface. The supporting structure is placed near the surface to be irradiated. The mounting bracket is has box-like shape with its upper end open and mounting flanges with some space left to at least two opposite lateral walls for mounting the mounting bracket on the flat surface. Frame structure has casing mounted on one frame end held by the casing. The frame holds reflector dealing with focused radiation the radiation source emits, the radiation source being held close to the surface under radiation. The radiation emitted by the radiation source is concentrated on the surface with the reflector. The frame is additionally fitted for holding the radiation in front of the reflector. The casing has dimensions, adjustable for being tightly imbedded into the open upper end of the mounting bracket, and mechanism for making mounting bracket and the casing interlink in a way that the casing is held in the mounting bracket when the mechanism is kept in locked state irrespective of mounting bracket alignment. The method has stages dealing with manufacturing a) the mounting bracket having box-like shape and mounting flanges having some space left to at least two opposite lateral walls for mounting the mounting bracket on the flat surface; b) the elongated bearing frame structure having the casing at one end and the frame held by the casing so that the frame holds the reflector and capable of holding the radiation source in front of the reflector and the casing has dimensions adjusted for being tightly imbedded into the open upper end of the mounting bracket; and c) the mechanism for making mounting bracket and the casing interlink in a way that the casing is held in the mounting bracket when the mechanism is kept in locked state irrespective of mounting bracket alignment.

EFFECT: small weight; easy serviceability.

9 cl, 7 dwg

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