Water disinfection method
SUBSTANCE: invention relates to complex water treatment with a sodium persulphate oxidising agent and heavy metal ions, particularly silver, copper and zinc, and can be used to disinfect recycled pool water and post-treatment of industrial waste water. The water disinfection method includes treating said water with an oxidising agent and copper and silver ions obtained by dissolving salts thereof, after which the water is held for 0.5-2 hours. Zinc ions are optionally used. The oxidising agent used is 0.2-0.4% aqueous sodium persulphate solution, which is added to the water simultaneously with copper, silver and zinc salt solutions until achieving the following concentrations thereof in the water: sodium persulphate 1-5 mg/l; silver ions 0.02-0.05 mg/l; copper ions 0.07-1.0 mg/l; zinc ions 3.0-5.0 mg/l. Water treatment is carried out at 10-25°C.
EFFECT: invention provides water disinfection and prevents repeated bacterial infection of the water for a long period of time.
1 tbl, 3 ex
The present invention relates to methods of complex water treatment oxidant by persulfate sodium ions and heavy metals, in particular silver, copper, zinc. It can be used for disinfection and disinfection of circulating water pools and for purification of waste water plants.
The most common method of water disinfection is chlorination [frog B.N., Levchenko A.P. Water. M.: Publishing house of Moscow state University, 2003. 680 C.]. To enhance the antimicrobial action chlorination combined with other reagents, such as ions of copper, silver or zinc (US 5858246, C02F 1/50, 1999). However, this method has several limitations related to the deterioration of water taste, odor and the formation of significant amounts of by-products containing chlorine, some of which are carcinogenic.
More promising is the replacement of chlorination water ozonation, which is due primarily to its high oxidizing properties and the ability to effectively destroy various inorganic and organic compounds, and pathogens, including those resistant to other oxidants, such as chlorine. When water ozonization her disappear unpleasant taste and odor, increased transparency, and increased dissolved oxygen. R is sloanie residual ozone occurs rapidly with oxygen without the formation of toxic compounds.
However, along with the above mentioned advantages of the method, treatment with ozone has a significant drawback - the water may be subjected to secondary bacterial infection, because just two hours after treatment the concentration of ozone in it approaches zero, and the need for the production of ozone in water treatment station.
The known method of water disinfection in swimming pools, providing periodic processing diisodecyl-dimethylammonium chloride and copper ions obtained by dissolving salts, followed by the introduction of the oxidant is chlorine or ozone and maintain a constant concentration of the latter is not less than 0.1 mg/l (US 5332511, C02F 1/50, 1994).
The known method of water disinfection by treatment with ozone and ions of copper, and the treatment is carried out in several stages, the first stage in water is injected ozone to its concentration in water of 0.5-1 mg/l in the second stage, the ozonated water was incubated for 0.5-2 h, and then in the third stage, the water is treated with copper ions at a concentration of 0.05-0.8 mg/l, obtained using the electrolytic cell, the anode and cathode which is made of refined copper, and the polarity of the electrodes is changed in 5-10 min (U.S. Pat. 2182123 RF, MKI C02F 1/50).
The known method of water disinfection, including its handling of ozone and ions of silver, and the processing of the Vedas is t in several stages, at the first stage, water is injected ozone to its concentration in water of 0.5-1.0 mg/l in the second stage, the ozonated water was incubated for 0.5 to 2.0 hours, then in the third stage, the water is treated with silver ions at a concentration of 0.005-0.01 mg/l, obtained using the electrolytic cell, the anode and cathode of which contain not less than 99 wt.% silver, and the polarity of the electrodes periodically change. Preferably ozonation need to at a water temperature of 10-20°C, and the electrolysis is at 20-30°C and pH 6,5-8,5 (U.S. Pat. 2182124 RF, MKI C02P 1/50, 1/78).
Known the closest in technical essence is the method of water disinfection, including its processing oxidant, followed by the introduction of silver ions and copper obtained by dissolving their salts, and as oxidant use ozone, which is injected into the water in an amount of 0.5-1 mg/l, then the water was incubated for 0.5-2 h and using at least one dosing device, introduce a solution of silver salts to achieve concentrations of ions Ag+in water, equal to 0.005-0.01 mg/l, and then injected with a salt solution of copper until concentrations of Cu2+equal to 0.05-0.5 mg/l (U.S. Pat. 2182125 RF, MKI C02F 1/50).
The disadvantage of this method is the need for the production of ozone in water treatment stations, and since already two hours after treatment the concentration of ozone in not what approaches zero, the water may be subjected to secondary bacterial infection.
The problem to which the invention is directed, is to develop effective, environmentally safe and cost-cheap method of water disinfection with simultaneous oligodynamic treatment metal ions and oxidizing agent to ensure the disinfection of water and to prevent secondary bacterial contamination of water in a long time.
This is achieved in that in the method of water disinfection, including the processing of silver ions and copper obtained by dissolving salts, after which the water stand for 0.5-2 hours, according to the invention are additionally applied zinc ions, and as the oxidant used is 0.2-0.4% aqueous solution of sodium persulfate, which is injected simultaneously with solutions of salts of silver, copper and zinc to achieve their concentration in water: sodium persulfate 1-5 mg/l; silver ion 0,02-0,05, copper ion 0.07 to 1.0 and zinc ions 3,0-5,0 mg/l, while water treatment is carried out at a temperature of 10-25°C.
The method is as follows.
First prepare aqueous solutions of sodium persulfate (0.2-0.4% of the solution), silver nitrate and copper sulfate and zinc (2-5% solution).
Then disinfected water is simultaneously added with stirring a solution p is sulfate sodium to its concentration of 1-5 mg/l, silver nitrate and copper sulfate and zinc to a concentration of silver ions, copper and zinc to 0.02-0.05, 0.07 to 1.0, and 3.0 to 5.0 mg/l, respectively.
Then disinfected water was incubated for 0.5-2 hours at a temperature of 10-25°C.
Example 1. To test the bactericidal action of this method was processed water from a surface water source. In the source water was added 0.2% solution of sodium persulfate to its concentration of 1 mg/l and 2% solutions of silver nitrate and sulphate of copper and zinc to a concentration of silver ions, copper and zinc 0,02; 0,07 and 3.0 mg/l, respectively.
In the second stage, the treated water stand for a 2.0 hours at a temperature of 25°C.
Example 2. To test the bactericidal action of this method was processed water from a surface water source. In the source water was added 0.3% solution of sodium persulfate to its concentration of 3 mg/l and 3% solutions of silver nitrate and sulphate of copper and zinc to a concentration of silver ions, copper and zinc 0,03; 0.5 and 4.0 mg/l, respectively.
In the second stage, the treated water was incubated for 1.0 hour at a temperature of 15°C.
Example 3. To test the bactericidal action of this method was processed water from a surface water source. In the source water were added to a 0.4% solution of sodium persulfate to e what about the concentration of 5 mg/l and 4% solutions of silver nitrate and sulphate of copper and zinc to a concentration of silver ions, copper and zinc of 0.05, 1.0 and 5.0 mg/l, respectively.
In the second stage, the treated water was incubated for 0.5 hour at a temperature of 10°C.
The study was conducted in the research laboratory of the centre FBUZ "Center of hygiene and epidemiology in the Penza region".
The table below lists the water quality parameters before and after 0.5; 1; 2 hours and 30 days after it is processed by the proposed method.
|Date sample||Place sample||The amount of the reagent||Contaminants to cleanup||Water temperature, °C||Contaminants after cleaning|
|After 0.5 hours||After 1 hour||2 hours||After 30 days, open storage|
|3.07.2012||The Sura river||Na2S2O8up to a concentration of 1 mg/l, [Ag+] to a concentration of 0.02 mg/l, [Cu+2] to a concentration of 0.07 mg/l, [Zn+2] to a concentration of 3.0 mg/l||25||1||No||No|
|Total coliforms, CFU 100 ml: 2,6·103||25||1||No||No|
|20.12.2013||Na2S2O8to a concentration of 3 mg/l, [Ag+] to a concentration of 0.03 mg/l [Cu+2] to a concentration of 0.5 mg/l, [Zn+2] to a concentration of 4.0 mg/l||Thermotolerant coliforms, CFU 100 ml: 3,2·103||15||No||No|
|Total coliforms, CFU 100 ml: 3,2·103||15||No||No|
|20.12.2013||Na2S2O8to the concentration of the emission of 5 mg/l, [Ag+] to a concentration of 0.05 mg/l [Cu+2] to a concentration of 1.0 mg/l, [Zn+2] to a concentration of 5.0 mg/l||Thermotolerant coliforms, CFU 100 ml: 3,2·103||10||No||No|
|Total coliforms, CFU 100 ml: 3,2·103||10||No||No|
As can be seen from the table in the source water were found thermotolerant coliform bacteria CFU and total coliform bacteria CFU. After treatment by the proposed method content thermotolerant coliforms (CFU 100 ml) and total coliforms (CFU per 100 ml), considerably lower than the existing EQS for water supply respectively ≤100 ≤500 [SanPiN 188.8.131.520-00 Hygienic requirements for the protection of surface waters] and meet the requirements for water of centralized drinking water supply systems [SanPiN 184.108.40.2064-01 "Drinking water. Hygienic requirements to water quality of centralized drinking water supply systems. QC] and DL the water of swimming pools ["Swimming pools. Hygienic requirements for design, operation and water quality. The quality control. SanPiN 220.127.116.118-03"].
The table also shows that in the disinfected water at open storage for one month is not its secondary bacterial infection.
Thus, the data presented indicate the high quality of the treated water is conducted this way, and the proposed method of water disinfection is an effective, relatively simple and available.
The method of water disinfection, including its handling of oxidizing agent and copper ions and silver obtained by dissolving salts, after which the water was incubated for 0.5-2 hours, characterized in that it further apply zinc ions, and as the oxidant used is 0.2-0.4% aqueous solution of sodium persulfate, which is injected into the water simultaneously with solutions of salts of copper, silver and zinc to achieve their concentrations in water:
sodium persulfate 1-5 mg/l;
silver ions to 0.02-0.05 mg/l;
copper ion 0.07 to 1.0 mg/l;
zinc ions 3,0-5,0 mg/l,
the water treatment is carried out at a temperature of 10-25°C.
SUBSTANCE: invention relates to water treatment and particularly to complex water treatment. Raw water is first passed through a module of centrifugal filters 3 with electromagnetic elements, after which the water is fed into a storage container 4 while simultaneously adding a chlorine-containing preparation obtained an electrolysis cell 15 via electrolysis of table salt; the water is the fed onto an array of hollow-fibre ultrafilters 8, after which the water undergoes final treatment on a photocatalytic column 11 based on nanocrystalline titanium dioxide and ultraviolet radiation in a bactericidal module 16.
EFFECT: use of the disclosed method increases efficiency of the complex water treatment equipment one and half times without increasing dimensions thereof and operational life at least two-fold.
SUBSTANCE: invention relates to applied electrochemistry and can be used in medicine, as well as in cosmetology for sterilisation and disinfection. The method of activating water includes electrolysis thereof between two electrodes - an anode and a cathode, separated by a porous diaphragm, between which voltage is applied. The anode and the cathode are made from fine schungite with particle size of 10-50 mcm, placed in an envelope of fine-pore linen fabric or fabric made of cotton, and a graphite or schungite rod inserted into the fine schungite. Said envelope is attached to the rod, wherein the pore size of said envelope is not greater than the schungite particle size. The graphite or schungite anode rod, which is inserted into the schungite fine powder, is connected output terminals of the positive terminal of the voltage source; the graphite or schungite cathode rod, which is inserted into the schungite fine powder, is connected to the negative terminal of the voltage source, wherein ultrasonic vibrations whose frequency is higher than the cavitation threshold in the range from 20 kHz to 100 kHz are excited in the electrodes and the electrolysis cell, wherein intensity of said ultrasound lies in the stable cavitation range of 1.5 W/cm2 to 2.5 W/cm2.
EFFECT: method intensifies the process of producing schungite-activated water, improves purity thereof and enhances antiseptic properties of the anolyte.
1 tbl, 1 ex
SUBSTANCE: invention relates to chemical industry and power engineering and can be used in treatment of industrial and household wastes. The vortex layer apparatus has a removable cartridge (2) made of nonmagnetic material with inserts of ferromagnetic material, mounted in the active area of a pipe (4). The cartridge (2) is a cylinder whose ends are closed by swirl diffusers with blades (7) which overlap with each other, inside of which there is a rod (9). There are ferromagnetic particles inside the reaction chamber (6). An electromagnetic inductor (1) creates a rotating magnetic field in the working area.
EFFECT: invention improves efficiency and the quality of treating a liquid and simplifies operation of the apparatus.
FIELD: process engineering.
SUBSTANCE: invention relates to water treatment at boilers and heat exchangers to remove scaling. Proposed device comprises inductors 4 arranged around pipeline 5 and made of diamagnetic material and connected to electromagnetic pulse generators. Every inductor 4 is composed of turns of electrically isolated wire 6. Electronic control unit 1 comprises two galvanically isolated four-channel electromagnetic pulse generators 2, 3 to generate forward and reverse signals. One end of wire 6 of every inductor 4 is connected to one output 8 of every said generator 2. Second end 9 of wire 6 of every inductor 4 is connected to appropriate outlet 10 of another generator of electromagnetic pulses.
EFFECT: efficient descaling, application at large-diameter pipes.
3 cl, 1 dwg
SUBSTANCE: apparatus for reagentless purification and disinfection of water comprises two hydraulic cyclones 20, 21, a reactor tank 1 with an air-stripping tower 2, in the top part of which there are two ejectors 3, 4, mixing chambers of which are directed towards each other. Over the mixing chambers there is a cupola-shaped reflection shield 5, over which there is a filter cartridge 8. The reactor tank 1 is divided by two vertical perforated partition walls 9, 10 into two compartments. The first compartment 12 of the reactor tank 1 contains a settling tank 15 linked to a drainage system. The second compartment 13 of the reactor tank 1 is equipped with upper 17 and lower 18 water level sensors. The outlet of the reactor tank 1 is connected to the feed line of the water to be treated and a pipe for feeding water to the consumer. The hydraulic cyclones 20, 21 are connected to the feed line of the water to be treated and the drainage system, and through mesh filters 22, 23 to inlets of receiving chambers of the ejectors 3, 4.
EFFECT: invention increases the water/air contact area and provides further dispersion, cavitation, agitation, aeration and degassing of the treated water.
9 cl, 1 dwg
SUBSTANCE: composition is also used to soften and desalinate process water, in production of synthetic detergents, in the paint industry and industry of polymer materials. The composition for producing cation-exchange fibre material consists of paraphenol sulphonic acid, formalin, basalt wool subjected to preliminary heat treatment for 1 hour at 350-450°C and microwave treatment at radiation power of 750 W for 30 s, and further contains phenol resin - a phenol production waste. The composition contains, wt %: paraphenol sulphonic acid 48.4-54.4, formalin 35.3, heat- and microwave-treated basalt wool 9.1, phenol resin 1.2-7.2.
EFFECT: composition enables synthesis of cation-exchange fibre material with an improved set of properties, particularly higher static exchange capacity and low filtrate oxidation susceptibility, and solves the problem of recycling phenol resin.
2 tbl, 4 ex
SUBSTANCE: invention relates to adsorption treatment of waste water. Disclosed is a method of reducing concentration of barium in water. The method includes preparing aqueous manganese oxide and mixing with barium-containing water. At pH higher than 4.8, aqueous manganese oxide acquires a negative charge and barium is adsorbed on the negatively charged surface. Manganese oxide with barium adsorbed on its surface is mixed with a flocculant. A treated output stream of water with low barium concentration is obtained after separating the formed sludge.
EFFECT: invention provides a simple technique of removing barium from waste water.
25 cl, 9 dwg, 5 tbl
SUBSTANCE: invention relates to industrial waste water treatment. Modified natural zeolite is used for treatment. The natural zeolite is modified with a solution of hexamethyldisilazane in toluene. The modified zeolite is dried successively in open air and in a muffle furnace at temperature of 110°C.
EFFECT: invention enables to obtain modified zeolite having zinc sorption capacity of 95 mg/g and nickel sorption capacity of 94 mg/g.
3 cl, 4 ex
FIELD: oil-and-gas industry.
SUBSTANCE: invention relates to environmental protection, particularly, to removal of spilled oil products from sea or lake surfaces. Absorbent, for example, peat-moss is delivered by whatever transport facility to oil spillage. Said absorbent is sprayed thereto and there above. Said peat-moss absorbs oil phase and separates it from water phase. Obtained with oil encapsulated in peat pores is collected and processed. Absorbent delivery package is composed by bag wherein said peat-moss is compacted and twisted. Said package comprises blast charge intended for its breaking to release absorbent therefrom. Absorbed oil products are collected by means of partially immersed ship drag-net, or slick bars, or oil collectors or pumps. Then, peat-moss with absorbed oil is processed to separate water mechanically or said peat is placed in bags and stored for delivery to shore for further processing.
EFFECT: perfected procedure, improved and simplified processing.
14 cl, 4 dwg
FIELD: physics, acoustics.
SUBSTANCE: invention is used to protect underwater structures and equipment from biofouling. The method includes, at the output of a bypass channel, generating and emitting energy, information, high-gradient and bioresonance signals which act on fish and change their behavioural characteristics; simultaneously emitting noise signals and creating a dense air-bubble screen which rises on the surface of biofouling and impurities. The air-bubble screen and the noise acoustic waves are additional barriers for aggregation of fish near the output of the bypass channel with superheated water. A floating boom is turned on the water surface to form a continuous barrier for biofouling and impurities rising to the surface, which are then collected in form of dirty foam. A mobile system equipped with acoustic radiators is used to forcefully move the aggregation of fish - natural predators for biofouling, from a remote part of a water body to a region adjacent to a supply channel by continuously emitting energy, information, high-gradient and bioresonance signals. Simultaneously, a second acoustic module and a second acoustic-bubble module are used to form an acoustic barrier for fish - natural predators of biofouling, as well as an acoustic-bubble shield in the narrowest part of the water body. Recycled water being cooled in the water body is further purified from biofouling and impurities and fish are not released from this part of the water body. Simultaneously, a third acoustic module and a third acoustic-bubble module are used to form an acoustic barrier for juvenile fish- natural predators of biofouling, as well as an acoustic-bubble shield at the input of the supply channel of the facility of the power system. As a result, recycled water cooled in the water body is further purified from biofouling and impurities. Simultaneously, intense ultrasonic waves and low-frequency electromagnetic waves act on the biofouling at the input of a water-intake window, with simultaneous removal of biofouling from the mechanical protective screen, and at the output of the inlet pipe of the underwater structure. Simultaneously, an acoustic filter mounted at the input of the equipment of the facility of the power system performs fine purification of water from biofouling, as well as biological and mechanical impurities.
EFFECT: high quality of purification and reliability of protecting underwater structures and equipment from biofouling.
FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to biocidal elements. A structural element with an antimicrobial surface (12). The given surface (12) comprises metal surface areas (14) and adjoining surface areas (13) from MnO2, with the metal surface areas (14) consisting of Ag and/or Ni and manganese oxide is at least partially found in γ-modification of MnO2.
EFFECT: invention enables a higher antimicrobial action.
12 cl, 5 dwg, 2 tbl
SUBSTANCE: invention relates to agriculture. Concentrated liquid mineral composition, containing the following components is applied for spraying leaves: total ammonia nitrogen (%) 0.08-2%, potassium, expressed as K2O (%) 3-6%, magnesium, expressed as MgO (%) 0.4-0.8%, sodium, expressed as Na2O (%) 1-2%, calcium, expressed as CaO (%) 0-0.5%, total phosphates, expressed as SO3 (%) 3-6%, total phosphorus, expressed as P2O5 (%) 0%, chlorides Cl (%) 1-2%, bicarbonates (in % HCO3) 1.2-3.0%, boron (%) 0.1-0.2%, copper (%) 0.018-0.03%, manganese (%) 0.00005-0.006%, iodine (%) 0.02-0.04%, zinc (%) 0.00005-0.006%, iron 0.0002-0.003, water to 100%. Percent content is expressed in weight percent relative to the total composition weight.
EFFECT: invention makes it possible to improve adaptive response of plants to change of the environmental conditions.
9 cl, 5 dwg, 1 tbl, 6 ex
SUBSTANCE: synergistic antimicrobial composition comprises a zinc salt of glyphosate and zinc pyrithione. Also, the method of growth inhibition of or control of growth of microorganisms in the building material by adding the said synergistic antimicrobial composition, a coating composition comprising the said composition, and a dry film obtained from the said composition.
EFFECT: invention provides growth inhibition or control of growth of microorganisms.
6 cl, 5 tbl
SUBSTANCE: invention relates to disinfectants. The storage stable aqueous concentrate for producing a disinfectant contains hydrogen peroxide in concentration of 30-70 vol. % of the volume of the finished concentrate; colloidal silver in concentration of 150-1000 ppmw of the weight of the finished concentrate; a stabiliser containing at least one biopolymer in concentration of 10-100 ppmw of the weight of the finished concentrate and phosphoric acid to bring pH of the concentrate to values less than or equal to 3. The concentrate contains at least one sodium salt selected from a group consisting of sodium nitrate, sodium sulphate or combinations thereof, in amount of 100-500 ppmw of the weight of the finished concentrate, wherein the concentrate does not contain synthetic organic complexing agents. The aqueous disinfectant contains said concentrate in concentration of at least 0.4 wt % and water. The disinfectant is used to treat drinking water or equipment in contact with drinking water. The method involves (a) preparing an aqueous solution of a stabiliser containing at least one biopolymer; (b) holding said solution at temperature of 60°C or lower, and adding phosphoric acid to said solution while maintaining temperature of 60°C or lower, to obtain an acidified stabiliser solution with pH less than or equal to 3.0; (c) adding a sodium salt selected from a group consisting of sodium nitrate, sodium sulphate and combinations thereof to the acidified stabiliser solution; (d) adding aqueous solution of colloidal silver to obtain an intermediate product; (e) homogenising the obtained intermediate product; (f) adding the intermediate product to aqueous hydrogen peroxide solution at temperature of 30°C or lower; (g) homogenising the obtained mixture to obtain a stable concentrate.
EFFECT: invention enables to use the disinfectant to treat drinking water and food products.
14 cl, 1 dwg, 8 ex
SUBSTANCE: invention relates to biocides. The synergetic antimicrobial composition contains glyphosate or zinc salt thereof and 3-iodo-2-propynyl butylcarbamate. A coating composition contains said synergetic antimicrobial composition. A dry film is obtained from said coating composition. A zinc salt of glyphosate is obtained by: (a) obtaining an aqueous glyphosate solution, (b) mixing said aqueous glyphosate solution with an aqueous solution of an inorganic zinc salt. Said mixing is carried out while keeping pH of the mixture not higher than 5.
EFFECT: invention increases efficiency.
SUBSTANCE: invention relates to biocidal composition, applied for paper impregnation. Composition contains propylene glycol, starch and colloidal silver with particle size 1-13 nm in concentration in colloid solution 20-100 ppm with the following component ratio, wt %: propylene glycol - 2-4; starch - 2-4; colloidal silver - 2-3; water - the remaining part.
EFFECT: invention makes it possible to prepare ecologically harmless composition in a simple way.
2 dwg, 3 tbl, 2 ex
SUBSTANCE: claimed invention relates to ophthalmological device, method of its obtaining. Device contains antimicrobial particles of metal salts, which have size less than approximately 200 nm, dispersed throughout polymer mass. Device ensures at least 0.5 log reduction of at least one of Pseudomonas aeruginosa and S.aureus, and opacity value constituting less than 100%, with 70 micron thickness, in comparison with CSI lens.
EFFECT: invention possesses high antibacterial activity 3 independent claims, 34 dependent claims of invention formula.
17 tbl, 46 ex, 5 dwg
SUBSTANCE: invention relates to techniques of producing composite bactericidal preparations, having bactericidal and fungicidal activity. The method involves preparation of a dispersion of substrate particles, solutions of salts of bactericidal metals from a group comprising silver and zinc, mixing the dispersion and the solutions, treating the mixture with a reagent from a group comprising a soluble phosphate to form particles of low-solubility metal compounds and precipitation thereof on the substrate particles to form a composite preparation, removal thereof and washing. The group of metals additionally includes copper and nickel. The group of reagents additionally includes sodium hydroxide, chloride and carbonate. The substrate used is particles of fibrillated cellulose fibres and the composite preparation is removed by pressure flotation. The fibrillated cellulose fibres contain, in terms of mass, at least 94% fibres with length of not more than 1.23 mm and at least 54% fibres with length of not more than 0.63 mm, with water retention of not more than 4 ml/g fibre. The mixture is treated in two or more steps. The solution of salts of bactericidal metals used is industrial effluent containing said salts.
EFFECT: method enables to cut duration of the process of preparing a suspension of the preparation, increases concentration of the preparation in the suspension, simplifies the process of extracting the preparation from the suspension and treatment thereof and widens the field of use of the preparation.
4 cl, 1 dwg, 1 tbl, 1 ex
FIELD: medicine, pharmaceutics.
SUBSTANCE: invention refers to medicine. What is described is a composite material which contains a non-organic substance in the form of a layer or a layer ingredient with the non-organic substance leads to form hydrogen cations in contact with an aqueous medium that induces an antimicrobial effect with the substance being produced of MoO2, MoO3, molybdenum carbide, molybdenum nitride, molybdenum silicide, molybdenum sulphide, molybdenum hexacarbonyl and/or molybdenum acetylacetonate.
EFFECT: antimicrobial effect of the composite material is found through time almost with no limit.
32 cl, 3 tbl
SUBSTANCE: invention relates to agriculture. Sunflower plants are treated with a tank mixture (wt %): bischofite - 2.0-6.0; preparation Amino-Zn - 0.05; water - balance.
EFFECT: invention makes it possible to provide for higher productivity of sunflower seeds and quality of produced products, to improve phytosanitary environment in crops and to reduce pesticide load at agrocenosis.
SUBSTANCE: claimed composition as essential ingredient contains titania colloidal particles aqueous solution. Size of titania nanoparticles allows easy absorption for plants. pH of aqueous solution is adjusted to prevent titania nanoparticle quick deposition in aqueous solution before dilution of said aqueous solution with water to provide desired titania concentration. Composition also contains ancillary necessary additives plant growth and surfactants for dispersion. Composition of present invention makes in possible to increase crop yield due to improved plant photosynthetic activity and to advance plant bactericidal activity against plant pathogens.
EFFECT: environmentally friendly composition for plant growth stimulator with increased effectiveness.
9 cl, 6 tbl, 1 dwg, 8 ex