Method for plumbing installation disinfection

FIELD: domestic plumbing installations, methods for disinfection thereof, particularly for large reservoirs.

SUBSTANCE: method involves applying disinfectant on installation surface and flushing installation with fresh water after disinfection operation finishing. Disinfection is performed by aerosol treatment carried out by accelerating anolyte particles up to speed of not less than 100 m/c. Anolyte with active chlorine concentration of not less than 100 mg/dm3 taken in amount of not less than 200 ml per 1 m2 of installation surface area is used as the disinfectant. Anolyte is used as aerosol with dispersity up to 100 microns and residence time of disinfectant on installation surfaces is not less than 30 min at positive temperature. Anolyte is sprayed by nozzle, centrifugal aerosol generator or high-pressure pump.

EFFECT: increased disinfection quality along with keeping ecological rules related to installation treatment and staff safety, increased depth of disinfectant penetration in installation surface and prevention of installation damage.

4 cl, 3 ex

 

The technical solution relates to the disinfection of water lines, namely the disinfection of water supply facilities, in particular tanks large capacity.

Disinfection of water supply facilities (wells, tanks and pressure tanks, settling tanks, mixers, filters, water supply network) can be preventive (before taking into operation of new facilities, after periodic cleaning after repair and emergency works), as well as epidemic indications (in the case of contamination of structures, which creates a threat of water outbreaks of intestinal infections).

Currently disinfection of water supply facilities is carried out with the use of chlorine.

Flushing and disinfection of water supply facilities and networks are to be effected by means of a construction organization (before starting their operation or administration of water (after repair and emergency works) in the presence of representatives of the sanitary-epidemiological service. The results are documented in a report, which indicates the dosage of anolyte active chlorine, duration of contact and final rinsing, the control of water analyses. On the basis of these materials to the local bodies of sanitary-epidemiological service give a conclusion about the possibility of the start of the constructions in which xploitation.

At a relatively low cost liquid chlorine technology of its application for disinfection of water supply facilities requires a large cash outlay on the strict observance of safety Rules for the production, storage, transportation and use of chlorine (PB-99). When using liquid chlorine, calcium hypochlorite and sodium hypochlorite (decontamination bound chlorine) and high efficiency disinfection in General and thermotolerant coliform bacteria there are sharp fluctuations in the level of contamination of drinking water coli-phages and spores (coefficient of variation 120-140%).

Existing technologies and equipment for disinfection of buildings, designed in 1950-60, not fully comply with the requirements of normative documents on the safety of production processes use and transportation of liquid chlorine, and the quality of disinfection in relation to viral contamination. There is wide variation indicators coli-phages and spores of sulphite-reducing clostridia, primarily because of lack of disinfecting ability of the reagents. This includes viruses, in particular hepatitis, but their determination in tap water is not produced.

Dependencies indicate, on the one article the Rhone, the lack of effectiveness of disinfection methods, and on the other hand - the need to take into account the processes occurring in the water distribution network, where the fall of the concentration of residual chlorine and developed corrosion processes are possible secondary growth in the number of sulphite-reducing clostridia.

Replacement of liquid chlorine to sodium hypochlorite (imported concentrated or produced in situ by electrolysis of table salt) will only solve the problem of security during transportation and storage, but will not solve the problem of elimination of viruses and spore-forming bacteria (1, 2).

To solve this problem requires the application of other methods and new non-traditional disinfectants.

Known techniques of disinfection of water supply facilities: method of irrigation and volume method. In the first method, the concentration of the solution of active chlorine should be at least 200-250 mg/l (0.3-0.5 l 1 m2the inner surface of the tank). In the volumetric method of filling containers with disinfectant solution and bringing the residual active chlorine 75-100 mg/l at contact 5-6 hours or 20-25 mg/l in daily contact. When both methods of disinfection staff working in gas masks (3).

The existing disinfection system water supply facilities as an element of SanEpid the activities are not sufficiently effective and in some cases is a source of danger to personnel and the environment. For example, traditional method, which consists in immersing, spraying, and wiping surfaces with subsequent curing (exposure) for a certain period of time, do not always give the desired result. In practice, irrigation and wiping the large internal surface areas with significant biodestruction damage, microporous structure (concrete etc) is inefficient and leads to adverse side effects. These methods allow to apply the product only on the accessible external surfaces. Due to capillary effects and surface tension of the disinfectant does not penetrate into the depth of the developed surfaces - primary niche outside production microflora.

When applying irrigation and wiping in terms of processing large areas not reached the required weight of the disinfectant contact with sources of microbial contamination. In the result of the initial population of microorganisms, which are heterogeneous in sustainability, artificially selectionrule population with high resistance to desprerate. It was established experimentally that after three cycles of ineffective desibabes formed microflora, fully sustainable as applicable desprerate and drugs that microorganisms were not in contact (by the way d is infectants). Such microorganisms are multiresistant and differ from the parent organisms morphological, biological and other characteristics. This significantly complicates their identification and disinfection becomes a difficult problem.

The present invention is to improve the quality of disinfection of water supply facilities with environmental compliance process and personnel safety, and the technical result - the penetration of the disinfectant in the depth of the developed surfaces of the processed structures and elimination of the possibility of damage to the treated surface.

For this method of disinfection of water supply facilities using disinfectant, characterized in that exercise aerosol disinfection facilities, and as a disinfectant use the anolyte.

Aerosol disinfection is performed with the acceleration of particles in the anolyte is at least 100 m/s and incubated for aerosol anolyte in the structure at temperatures not less than 30 minutes

Washed the construction of clean water.

Use the anolyte with a concentration of active chlorine of not less than 100 mg/inch

Use the anolyte in the amount of not less than 200 ml per 1 m2the surface of the structure.

Use the anolyte in the form of an aerosol particle size up to 100 microns.

Spray the anolyte through the nozzle, centrifugal aerosol generator or a high-pressure pump.

Safe and relatively affordable solution disinfection of water supply facilities is the development of technology aerosol disinfection on the basis of new disinfectants - electrochemically activated (ECHO) sodium chloride solution (anolyte). This technology will allow you to safely and effectively perform the disinfection of water supply facilities.

Technology has advanced environmentally friendly methods of disinfection based on ECHO-solutions. Processing prizvoditsya aerosol method with a high disinfecting effect.

The equipment allows you to quickly create the desired concentration of drug in the entire volume of the building, this processing occurs as surface and air. Similar to the effects of the drug eliminates desinfectante stable microflora.

Used drugs after treatment to decompose water, and therefore does not require subsequent neutralization, and structures can be returned to the production cycle 2-3 hours after processing.

The present invention is illustrated in the next examples.

Example 1.

Aerosol disinfection of water supply facilities is done using the anolyte, synthesized, for example, in set is vcah STEL and sprayed in the form of a fine aerosol by using technical means (for example, the nozzle). Quantity (amount) of analyte is calculated from the surface area of the treated plants. When this aerosol disinfection is performed with the acceleration of particles anolyte up to 120 m/s with a dispersion of 70-80 μm and incubated for aerosol anolyte at a temperature of +15°C for 45 minutes

The tap structure is washed with clean water after 1 hour after processing.

Example 2.

Aerosol disinfection of water supply facilities is done using the anolyte synthesized in plants "Emerald SEA" and sprayed in the form of a fine aerosol by using technical means (for example, high-pressure pump). Quantity (amount) of analyte is calculated from the surface area of the treated plants. When this aerosol disinfection is performed with the acceleration of particles anolyte to 180 m/s particle size of 50-60 microns and bear spray anolyte at a temperature of +5°C for 90 minutes and use the anolyte with a concentration of active chlorine 200 mg/DM3.

Example 3.

Aerosol disinfection of water supply facilities is done using the anolyte synthesized in equipment of the type STEL and sprayed in the form of a fine aerosol by using technical means (for example, centrifugal aerosol generator). Quantity (amount) of analyte is calculated and the surface area of the treated plants. When this aerosol disinfection is performed with the acceleration of particles anolyte up to 200 m/s with a dispersion of 30-40 μm and incubated for aerosol anolyte at a temperature of +10°C for 60 minutes and use the anolyte with a concentration of active chlorine 300 mg/DM3and use the anolyte in the amount (volume) of 300 ml of 1 m2the surface of the structure.

Before disinfection of water supply facilities in all cases necessarily made their preliminary mechanical cleaning and flushing. Water supply, treatment which is difficult, intensively washed for 4-5 h at the maximum possible speed of movement of water (not less than 1 m/s).

Disinfection of the water supply network diameters 200-1400 mm is produced by filling the pipes with spray anolyte with the appropriate technical means with a concentration of 100 mg/DM3active chlorine (depending on the degree of contamination of the network, its deterioration and sanitary and epidemic situation). Introduction aerosol in the network area in continue up until the end of the treated area will not begin to spray the anolyte. From this point further flow of aerosol anolyte stop and leave the filled area of not less than 30 minutes. At the end of the processing time is washed with a network of clean tap water. Conditions of discharge of water from the network definition is considered to be the place in coordination with the bodies of sanitary-epidemiological service. If you cannot discharge water from the network, for example, in reservoir fisheries values and the like, without rinsing, fill the pipeline with water and when the content in water of 0.3 to 0.5 mg/DM3residual chlorine from the network take samples for bacteriological control analysis. Disinfection is complete under favorable results of the two tests, taken sequentially from a single point.

The advantages of the aerosol method of disinfection are as follows:

- to achieve complete disinfection of surfaces and the air, especially in hard to reach areas and cavities of the objects being processed;

- significant reduction in the number of disinfectant-anolyte;

- use the cheapest and most effective disinfectant-anolyte;

- reduce the effort required to conduct disinfection;

- excluding contact with disinfectant during the work due to the remote input aerosol analyte;

- elimination of the possibility of damage to the treated surface;

ecology in aerosol technology due to relaxation (decay) of the anolyte after its application to environmentally friendly components.

This invention can be used also in other sectors of the economy.

Sources of information

1. "Heating the tion, water supply, sewage system" (Reference designer), stroiizdat, 1975, page 245.

2. Annalen. "Technology", the Academy of Sciences of the Ukrainian SSR, Kiev, Naukova Dumka, 1985, page 203.

3. Rules of technical operation of the systems and structures of municipal water supply and Sewerage (official publication), GOS. The Committee of the Russian Federation for construction and housing and communal complex, M., 2000, pp. 62-63.

1. The method of disinfection of water supply facilities, including the use of disinfectant and washing facilities with clean water at the end of processing time, wherein the specified disinfection - spray, disinfectant use the anolyte with a concentration of active chlorine of not less than 100 mg/DM3not less than 200 ml per 1 m2surface structures in the form of an aerosol dispersion to 100 μm, which is kept in the structures at temperatures not less than 30 min, and the specified aerosol disinfection is performed with the acceleration of particles in the anolyte is at least 100 m/s

2. The method according to claim 1, characterized in that the analyte is sprayed through nozzles.

3. The method according to claim 1, characterized in that the analyte is sprayed by centrifugal aerosol generator.

4. The method according to claim 1, characterized in that the analyte is sprayed with high-pressure pump.



 

Same patents:

FIELD: military medicine; catastrophe medicine; extremal situations for supply of water to victims.

SUBSTANCE: proposed method includes complex use of filtering, ultra-filtering, reverse osmosis, sorption, ion-exchange and sterilizing processes performed in definite sequence. Quality of water is monitored continuously by specific electrical resistance. Plant for realization of this method includes coarse filter, preliminary filter, delivery pump, supply main, ultra-filter, high-pressure pump, reverse osmosis filter, specific electrical resistance meters, charcoal filter, sorption filter, cationite filter, anionite filter and cartridge filter for sterilization. Reverse osmosis filter is additionally connected to discharge main; anionite filter is provided with additional outlet to cleaned water receiver and cartridge filter used for sterilization is connected with water receiver for injections. Provision is made for recirculation of water being cleaned.

EFFECT: increased productivity; enhanced efficiency.

4 cl, 1 dwg,3 tbl, 6 ex

FIELD: military medicine; catastrophe medicine; extremal situations for supply of water to victims.

SUBSTANCE: proposed method includes complex use of filtering, ultra-filtering, reverse osmosis, sorption, ion-exchange and sterilizing processes performed in definite sequence. Quality of water is monitored continuously by specific electrical resistance. Plant for realization of this method includes coarse filter, preliminary filter, delivery pump, supply main, ultra-filter, high-pressure pump, reverse osmosis filter, specific electrical resistance meters, charcoal filter, sorption filter, cationite filter, anionite filter and cartridge filter for sterilization. Reverse osmosis filter is additionally connected to discharge main; anionite filter is provided with additional outlet to cleaned water receiver and cartridge filter used for sterilization is connected with water receiver for injections. Provision is made for recirculation of water being cleaned.

EFFECT: increased productivity; enhanced efficiency.

4 cl, 1 dwg,3 tbl, 6 ex

FIELD: military medicine; catastrophe medicine; extremal situations for supply of water to victims.

SUBSTANCE: proposed method includes complex use of filtering, ultra-filtering, reverse osmosis, sorption, ion-exchange and sterilizing processes performed in definite sequence. Quality of water is monitored continuously by specific electrical resistance. Plant for realization of this method includes coarse filter, preliminary filter, delivery pump, supply main, ultra-filter, high-pressure pump, reverse osmosis filter, specific electrical resistance meters, charcoal filter, sorption filter, cationite filter, anionite filter and cartridge filter for sterilization. Reverse osmosis filter is additionally connected to discharge main; anionite filter is provided with additional outlet to cleaned water receiver and cartridge filter used for sterilization is connected with water receiver for injections. Provision is made for recirculation of water being cleaned.

EFFECT: increased productivity; enhanced efficiency.

4 cl, 1 dwg,3 tbl, 6 ex

FIELD: military medicine; catastrophe medicine; extremal situations for supply of water to victims.

SUBSTANCE: proposed method includes complex use of filtering, ultra-filtering, reverse osmosis, sorption, ion-exchange and sterilizing processes performed in definite sequence. Quality of water is monitored continuously by specific electrical resistance. Plant for realization of this method includes coarse filter, preliminary filter, delivery pump, supply main, ultra-filter, high-pressure pump, reverse osmosis filter, specific electrical resistance meters, charcoal filter, sorption filter, cationite filter, anionite filter and cartridge filter for sterilization. Reverse osmosis filter is additionally connected to discharge main; anionite filter is provided with additional outlet to cleaned water receiver and cartridge filter used for sterilization is connected with water receiver for injections. Provision is made for recirculation of water being cleaned.

EFFECT: increased productivity; enhanced efficiency.

4 cl, 1 dwg,3 tbl, 6 ex

FIELD: military medicine; catastrophe medicine; extremal situations for supply of water to victims.

SUBSTANCE: proposed method includes complex use of filtering, ultra-filtering, reverse osmosis, sorption, ion-exchange and sterilizing processes performed in definite sequence. Quality of water is monitored continuously by specific electrical resistance. Plant for realization of this method includes coarse filter, preliminary filter, delivery pump, supply main, ultra-filter, high-pressure pump, reverse osmosis filter, specific electrical resistance meters, charcoal filter, sorption filter, cationite filter, anionite filter and cartridge filter for sterilization. Reverse osmosis filter is additionally connected to discharge main; anionite filter is provided with additional outlet to cleaned water receiver and cartridge filter used for sterilization is connected with water receiver for injections. Provision is made for recirculation of water being cleaned.

EFFECT: increased productivity; enhanced efficiency.

4 cl, 1 dwg,3 tbl, 6 ex

FIELD: waste water treatment.

SUBSTANCE: initial waste water is mixed with chloroform to extract dimethylacetamide and isobutyl alcohol and, after settling-assisted separation from chloroform, resulting mixture is passed through activated carbon. Thus purified water is then reused in process. Activated carbon is regenerated by chloroform. Chloroform loaded with desorbed substance and chloroform extract are combined and distilled to give dimethylacetamide, isobutyl alcohol, and chloroform. Distilled-off chloroform is divided into two streams, the first one being returned to regenerate activated carbon and the other is mixed with initial waste water.

EFFECT: reduced expenses due to reduced compound of costly adsorbent without loss in waste water treatment efficiency and enabled low-waste technology.

2 cl, 1 dwg

FIELD: waste water treatment.

SUBSTANCE: initial waste water is mixed with chloroform to extract dimethylacetamide and isobutyl alcohol and, after settling-assisted separation from chloroform, resulting mixture is passed through activated carbon. Thus purified water is then reused in process. Activated carbon is regenerated by chloroform. Chloroform loaded with desorbed substance and chloroform extract are combined and distilled to give dimethylacetamide, isobutyl alcohol, and chloroform. Distilled-off chloroform is divided into two streams, the first one being returned to regenerate activated carbon and the other is mixed with initial waste water.

EFFECT: reduced expenses due to reduced compound of costly adsorbent without loss in waste water treatment efficiency and enabled low-waste technology.

2 cl, 1 dwg

FIELD: waste water treatment.

SUBSTANCE: initial waste water is mixed with chloroform to extract dimethylacetamide and isobutyl alcohol and, after settling-assisted separation from chloroform, resulting mixture is passed through activated carbon. Thus purified water is then reused in process. Activated carbon is regenerated by chloroform. Chloroform loaded with desorbed substance and chloroform extract are combined and distilled to give dimethylacetamide, isobutyl alcohol, and chloroform. Distilled-off chloroform is divided into two streams, the first one being returned to regenerate activated carbon and the other is mixed with initial waste water.

EFFECT: reduced expenses due to reduced compound of costly adsorbent without loss in waste water treatment efficiency and enabled low-waste technology.

2 cl, 1 dwg

FIELD: waste water treatment.

SUBSTANCE: invention relates to biological waste water treatment methods that can be used at enterprises of power, petroleum processing, petrochemical, chemical, paper-and-pulp, food processing, and other industries as well as for treatment of household sewage. Biocatalytic waste water treatment is performed by oxidation in air tanks or on biofilters in presence of catalytically acting substance and activated sludge. In case of air tanks, catalytically acting substance consists of one (multifunctional) or three (one multifunctional and two selective) heterogeneous catalysts for oxidation of inorganic and/or organic compounds and containing active component: variable-valence metal oxides and/or hydroxides, or spinels, and, additionally, modifying additive, in particular organic bases and/or heteropolyacids, active component being deposited on polymer carrier (polyethylene or polypropylene). Content of active component is 15-20% and that of modifying additive 0.5-20%. For oxidation of organic, sulfur, and nitrogen compounds, multifunctional catalyst is used containing active component consisting of variable-valence metal oxides and hydroxides. For nitrification process (ammonium nitrogen oxidation), selective catalyst is used containing active component consisting of variable-valence metal spinels and oxides. In case of denitrification process (reducing nitrites and nitrates into molecular nitrogen), selective catalyst is used containing active component consisting of variable-valence metal spinels and hydroxides. Oxidation process is accomplished at catalyst-to-water ratio 1:75 at consumption of air not higher than 9.0 m3/m3. Invention also discloses biocatalytic treatment of waste waters via oxidation on biofilters in presence of activated sludge and catalytically acting substance consisting of active component (15-50%): one or several variable-valence metal compounds, flux (50-10%): silicon-containing compound, modifying additive (0.5-20%): carbon-containing material, and carrier: clay.

EFFECT: increased productivity and reduced power consumption on existing treatment plants, reduced investment and operational expenses, and deepened waste water treatment.

8 cl, 5 tbl, 10 ex

FIELD: treatment of water.

SUBSTANCE: method comprises filtering tap or natural water from top to bottom through tree layers of stones of natural black silicon of 0.5 cm3 to 3 cm3 grains and supplying and discharging water within 5-15 liters per 6 seconds. The device comprises three same rectangular vessels mounted one above the other and made of biologically inert material, e.g. plastic or stainless steel of 60x30x30 cm (2:1:1) in sizes. The ratio of the vessel volume filled with silicon stones to the volume of the vessel for water is 1:1.5. At the centers of the bottoms of each vessel, within the area of 20x20 cm, are openings of 4 mm in diameter to provide 1 opening per 1 cm2. The bottom of each vessel is provided with the funnel. Each of the vessels is provided with the detachable lid which consists of two members and is provided with opening of diameter 2.5 cm at the center. One internal side of each vessel is provided with two projections. One projection is at a distance of 20 cm from the bottom and is used for indicating the level of filling with silicon stones. The second projection is made at a distance of 5 cm from the bottom and is used for indicating the level of water. The bottom of each vessel is provided with funnel with cover. The funnel is made of an inert material.

EFFECT: improved quality of silicic water.

5 cl, 2 dwg

FIELD: veterinary.

SUBSTANCE: bactericidal agent contains, wt %: iodine 35-40, potassium nitrate 35-40, copper chloride 3-5, and carbohydrates - the balance.

EFFECT: enhanced efficiency of disinfection of veterinary surveillance objects by 20-40% and weakened fire risk of treatments.

17 ex

The invention relates to the field of medicine, veterinary medicine, Microbiology, ecology

The invention relates to agriculture, in particular to installations for disinfection and disinsection inner surfaces, air, and equipment at your facility, and can be used for sanitation of premises for the keeping of animals, poultry, grain storage, cargo holds of ships and aircraft tonnage of shipping containers, etc
The invention relates to pharmacology, and relates to a method of preservation solutions of medicines by introducing them as a preservative colloidal silicic acid solution with a pH of 7.5-8.5 at a concentration of silicic acid in the obtained system of 4-6%
The invention relates to the production of aerosols for preventive and curative mass processing of animals and birds in parasitic and infectious diseases, and sanitation of air and disinfection of livestock buildings

The invention relates to the field of medicine and is designed to hold an emergency, current preventive and final disinfection of premises, sanitary-technical equipment, tools and instruments for medical purposes at the intestinal and drip infections of bacterial and viral etiology, candidiasis and ringworm, tuberculosis, as well as for the prevention of nosocomial infections in newborns and children of early age
The invention relates to agriculture and veterinary medicine

The invention relates to livestock and poultry, in particular to methods of disinfection of air in the presence of animals and birds, as well as premises and equipment

FIELD: veterinary.

SUBSTANCE: bactericidal agent contains, wt %: iodine 35-40, potassium nitrate 35-40, copper chloride 3-5, and carbohydrates - the balance.

EFFECT: enhanced efficiency of disinfection of veterinary surveillance objects by 20-40% and weakened fire risk of treatments.

17 ex

Up!