SUBSTANCE: invention relates to means of purifying and disinfecting different types of water. Described is a disinfectant which contains a first polyhexamethylene guanidine hydrochloride component, a second alkyldimethylbenzylammonium chloride component and water, wherein content of the components in the solution is selected in the following amounts, wt %: first component 7-34.5, second component 1.75-6.9, water - the balance.
EFFECT: disinfection of drinking water.
The invention relates to sanitation and hygiene, and in particular to means for cleaning and decontamination of various types of water - drinking water, urban and industrial waste water, swimming pool water and water cooling systems equipment and hot water outdoor heating systems. Disinfectant, then the tool also applies to microbiological and chemical safety, under chemical safety refers to the observance of the established norms of maximum permissible concentrations (MPC) of chemical substances included in the composition of these products. The tool can be used to protect pipelines and structures from pathogenic bacteria and biological fouling. When this is achieved the necessary technological effect and at the same time there has been improvement in water quality.
Currently there are a large number of physical and physico-chemical methods of water disinfection. To physico-chemical methods of disinfection is the treatment of water disinfectant chemicals - chlorine or its derivatives, as well as ozone.
Widespread chlorination using liquid chlorine, calcium hypochlorite and sodium hypochlorite. However, chlorine, being a toxic substance that requires special precautions during transportation, storage and dosage. the moreover, the chloride ions present in the water, under the action of electrolytic processes are transformed into elemental chlorine which combines with organic substances that form in the water toxic compounds that are carcinogenic action. In the practice of disinfection are synthetic antibacterial polyelectrolytes based on guanidino compounds, in particular on the basis of guanidine (phmg).
Known composition for disinfecting water, comprising guanidine phosphate, methylene blue and the water, and it additionally contains alkyldimethylbenzylammonium chloride, isopropyl alcohol, in the following ratio, wt.%: alkyldimethylbenzylammonium 6-10; methylene blue 0,05-0,5; isopropyl alcohol 0.5 to 1.5; polyhexamethyleneguanidine 0,5-2,0; water - the rest. The composition provides for the destruction of pathogenic bacteria, algae, when it does not lather, and accelerates the process of water purification EN 2192393 C1, 10.11.2002.
Known means for purification of water containing an aqueous solution of polyhexamethyleneguanidine, alkyldimethylbenzylammonium chloride, the ratio of the components in the composition is in wt.%: polyhexamethylene guanidine hydrochloride 37,9-46,4; alkyldimethylbenzylammonium chloride of 7.0 and 8.6; water - the rest of the OE. The specified composition is injected into the water in two stages: at first - after entering the coagulant before chapeaurouge, and the other after separation of the flakes from the water by sedimentation. The invention provides water that meets modern requirements, EN 2442753 C1, 20.02.2012.
Also known disinfectants (EN 2034789 C1, 10.10.1995. EN 2163489 C1, 27.02.2001. WO 97/34834 A1, 25.09.1997. EP 0584914 A1, 02.03.1994. EN 2145307 C1, 10.02.2000. EN 2057796 C1, 10.04.1996. EN 2147032 C1, 27.03.2000.
The closest technical solution to the presented in this technical solution is known disinfectant containing cleansing agent and water as an antimicrobial agent, comprising the first component polyhexamethyleneguanidine or polyhexamethyleneguanidine and the second component is alkyldimethylbenzylammonium or a mixture of Quaternary ammonium salts, amine and/or tertiary amine, and the mass ratio m of the first and second components is in the range of 5:1<m≤10:1. The tool contains these components in the following amounts, wt.%: polyhexamethyleneguanidine or polyhexamethyleneguanidine - 1,5-6,0; alkyldimethylbenzylammonium or a mixture of Quaternary ammonium salts, amine and/or tertiary amine - 0,15-1,2; water - other (RU 282889 C1, 27.05.2002).
Disinfection means the patent RU 2182889 C1 based on bactericidal activity guanidino groups. The mechanism of bactericidal action pgmg includes stage, during which occurs the absorption of the polycation on the cell surface, reducing the intensity of the electron transport and the efficiency of the phosphorylation and structural abnormalities of the reaction centers of photosystem. As a consequence of these stages is increased permeability of the outer cell membranes of bacteria, significant swelling and cell death.
The remedy for the patent RU 2182889 C1 is obtained by pre-dissolving in water estimated number of pgmg-chloride or pgmg-phosphate, then add the calculated amount of the second component, such as catamine AB. In a preferred embodiment of the invention the resulting tool is a transparent liquid, which comprises polyhexamethyleneguanidine with mass fraction 2,25-2,75% and alkyldimethylbenzylammonium with a mass fraction of 0.3-0.5%. Specified, the first composition comprises the components in the amount of 2.3% and 0.3%, respectively, and the second composition contains these components in the amount of 2.7% and 0.5%. If laboratory testing was evaluated disinfectant efficiency funds in comparison with chlorine and hypochlorite intothree is, which are currently the most common disinfectants.
Preliminary testing tools for patent RU 2182889 C1 showed a steady and qualitative effect of disinfection of natural water for drinking water. Comparative testing and evaluation of the influence of money on technological, organoleptic and physico-chemical characteristics of drinking water showed the possibility of its effective and widespread use in water treatment processes.
However, the experience of using this tool in real conditions of water purification systems in the utilities during the year showed that the disinfection of water in prescribed concentrations does not provide guaranteed microbiological safety of processed water. When the dose is increased funds unacceptably increased the rate of maximum permissible concentrations of chemicals of the MT 220.127.116.115-03. In this regard, the ratio of 5:1<m≤10:1 suggests a large gap between the first and second component that, in General, is ineffective in real terms for the disinfection of natural water, while increasing the dose of reagent leads to the exposure limit is exceeded, it should be noted that in GN 18.104.22.1685-03 there is no standard MAC for polyhexamethyleneguanidine, which makes it impossible for regulated use in water systems of iodoacetate. In this regard, the remedy for the patent RU 2182889 C1 has unsatisfactory properties and efficacy in disinfecting potable water.
The technical result presented in this description of the invention is to increase the efficiency of water disinfection.
The technical result is achieved in that the disinfectant for disinfection of water contains water and cleansing agent, and the latter includes the first component polyhexamethyleneguanidine, the second component alkyldimethylbenzylammonium (alkylbenzyldimethylammonium) or its mixture with an oxide of alkyldiphenylamine, the mass of the first component is selected to the weight of the second component in the ratio of 4:1<m≤5:1, where m is the mass ratio of the first and second components. The second component mass alkyldimethylbenzylammonium (alkylbenzyldimethylammonium) to the mass of oxide alkyldiphenylamine selected in a ratio of from 1:1 to 10:1. The tool contains these components in the following quantities, mass %: the first component within 7-50; the second component is in the range of 1.75-12,5; water - the rest.
According to the act pilot tests in surface water source was characterized by the following parameters: pH from 7.7 to 7,73; color (deg) - from 81 to 90; turbidity (mg/is m 3) - from 1.57 to 2.75; aluminum residual (mg/DM3) is from 0.04 to 0.05; oxidation (mg/DM3) - from 11.9 to 14.9; OKB (CFU/100 ml) - from 15 to 160; TKB (CFU/100 ml) - from 13 to 122; coliphages (PFU/100 ml) from 0 to 1; the spores of sulphite-reducing clostridia (CFU/20 ml) from 0 to 10.
From the presented data shows that the river water meets the requirements of SanPiN 22.214.171.1240-00 requirements for water bodies in the areas of drinking and household water use.
During testing, water of the river was sequentially injected coagulant is aluminum sulfate (Al2(SO4)3) in doses of 11 mg/l to 13.5 mg/l (Al2O3and after 1.5-2 min - 7% solution of the disinfectant in doses of 0,153 mg/l to 0.38 mg/l for pgmg. Then, after contact clarifier before clear-water reservoir due was additionally administered a solution of the disinfectant dose of 0.1 mg/l (pgmg). According to the test Protocol of the Territorial Department of the Federal service for supervision of consumer rights protection and human welfare, the output of the contact clarifiers treated with coagulant and disinfected with a disinfectant water was characterized by the fact that after contact illuminators water meets the requirements of SanPiN 126.96.36.1994-01 on all indicators, with the exception of the design Bureau and TKB. Concentration means pgmg was below the exposure limits. After W is the hexadecimal format of the disinfection of the water in the clear-water reservoir due to fully comply with the requirements of SanPiN 188.8.131.524-01. While in purified water residual quantity of the disinfectant did not exceed the MAC for the main current substance (pgmg) and was not more than 0.1 mg/L. the concentration of these components was chosen in the range, wt.%: component - 7-34,5, the second component is 1.75-6.9, water - the rest.
From table 1 it is evident that after contact illuminators water meets the requirements of SanPiN 184.108.40.2064-01 on all indicators, with the exception of the design Bureau and TKB. Concentration means pgmg was below the exposure limits.
Table 2 shows that after secondary disinfection of water, she's in the clear-water reservoir due to fully comply with the requirements of SanPiN 220.127.116.114-01. Thus, as the test showed, the quality of water disinfection and, accordingly, as a means of disinfection significantly improved.
Improving the quality of a disinfectant allowed to extend its functionality.
From table 3 it can be seen that when the residual content of polyhexamethyleneguanidine from 0.07 to 0.1 mg/l, and alkyldimethylbenzylammonium from 0,014 0,02 water is provided by the high microbiological safety of drinking water during transport it to the consumer in the distribution of the urban network. Disinfectant concentrations, not reviewsi MAC has reliable prolonging effect, while preserving the quality of water at any point in the network in accordance with the norms SanPiN 18.104.22.1684-01.
Disinfectant for disinfection of water containing the first component polyhexamethyleneguanidine, the second component alkyldimethylbenzylammonium and water, forming a solution, characterized in that the content of components in the solution is selected in the range, wt.%: the first component, 7-34,5, the second component is 1.75-6.9, water - the rest.
SUBSTANCE: claimed invention relates to a liquid cleaning and/or disinfecting composition, containing abrasive cleaning particles. Claimed is the cleaning and/or disinfecting composition, containing particles of a polyurethane foam as an abrasive agent and an agent for suspending, with the polyurethane foam being formed from diisocyanate monomers and polyols, with the monomers being aliphatic diisocyanate monomers and being selected from the group, consisting of hexamethylenediisocyanate (HDI), dicyclohexylmethanediisocyanate (H12MDI), isophoronediisocyanate (IPI), lysine or lysine diisocyanate ether (LDI) and their mixtures. The method of the surface cleaning and/or disinfection is also claimed.
EFFECT: high cleaning/disinfection, good profile of surface safety.
15 cl, 15 tbl, 5 dwg
SUBSTANCE: described is a universal detergent and a disinfecting foam preparation, which contains potassium hydroxide, a disinfecting component - catamin AB and water and additionally: sodium hydroxide, alkylpolyglycoside and alkyldimethylamine oxide as non-ionogenic SAS, salt of ethylenediaminotetraacetic acid, glycol A with the following component ratio, wt % (counted per pure substances): sodium hydroxide 5-15, potassium hydroxide 2-8, salt of ethylenediaminotetraacetic acid 1.5-5, mixture of non-ionogenic SAS including: alkylpolyglycoside 2-4 and alkyldimethylamine oxide 2-6, disinfecting component catamin AB 2.5-6, glycol A 0.5-2, water - the remaining part.
EFFECT: increased detergent and disinfecting ability of the preparation due to an increase of the foam formation.
4 cl, 3 ex
SUBSTANCE: invention relates to a cleansing bar. Described is the cleansing bar, which in one version contains clay in the total amount higher than the quantity of any other material in the cleansing bar, and in the other version contains talc in the total amount higher than the quantity of any other material in the cleansing bar, at least one cleansing substance, selected from soap and a surface active substance (SAS), and a binding agent, present in the quantity, structuring the cleansing bar in the form of a bar, selected from hydrogenated soybean oil, ceresin, ozokerite, carnauba wax, bees wax, palm kernel oil, biopolymer adhesive, sulphopolyether and polyvinyl alcohol. Also described are methods of obtaining the cleansing bars, methods of removal bacteria from skin and methods of inhibiting the bacterial growth on skin.
EFFECT: structural integrity, foam formation, antibacterial properties and rate of consumption.
34 cl, 2 dwg, 102 tbl
SUBSTANCE: described is a detergent, which contains alkali metal hydroxide, a solution of sodium hypochloride with the concentration of active chlorine 180 g/l and water, additionally containing a water-soluble copolymer based on acrylic and maleic acids with the molecular weight of 40000 - 70000 g/mol, tetrasodium salt of oxyethylenediphosphonic acid, salts of phosphinocarboxylic acid or phosphinocarboxylic acid with the following component ratio, wt %: alkali metal hydroxide 10-35%, solution of sodium hypochloride with the concentration of active chlorine 180 g/l 20-50%, water-soluble copolymer based on acrylic and maleic acids with the molecular weight 40000 - 70000 g/mol 0.2-10%, tetrasodium salt of oxyethylenediphosphonic acid 0.5-5%, salts of phosphinocarboxylic acid or phosphinocarboxylic acid 0.5-5%, water - the remaining part.
EFFECT: increased antibacterial properties and exploitation characteristics due to improved efficiency of the ratio of the detergent composition and sodium hypochlorite concentration in the liquid form of a combination of ingredients, extension of the assortment of universal detergents, high washing and disinfecting properties.
4 cl, 3 ex
SUBSTANCE: claimed invention relates to disinfecting wipe, which contains material of fibrous cloth, which is hydrophobic in general and contains synthetic polymer capable of extrusion in melt, where material of fibrous cloth in general does not contain cellulose fibres; and bactericidal solution, present in amount from 150 wt % to 1000 wt % relative to dry weight of fibrous cloth material, where bactericidal solution contains from 0.01 wt % to 2 wt % of at least one peracid, from 0.5 wt % to 15 wt % of at least one peroxide, from 0.001 wt % to 2 wt % of at least one surface-active substance, where at least one surface-active substance includes non-ionic surface-active substance, including alcoxylate of fatty alcohol, and anionic surface-active substance, which includes sulphosuccinate. Claimed invention also relates to method of solid surface disinfection.
EFFECT: obtaining disinfecting wipe, which contains bactericidal solution and demonstrates highly efficient germicidal properties, and bacterial solution which remains stable.
24 cl, 8 ex, 1 dwg
SUBSTANCE: disinfectant additive for detergent for washing overalls, containing the following components in wt %: swelling sheet silicate 10, surfactant 38, alkali metal salt 2, antimicrobial active substance in form of a substance containing a peroxy group 50.
EFFECT: use of the present invention enables to obtain an environmentally safe and easy to use disinfectant additive for a detergent for washing overalls.
1 cl, 1 tbl
SUBSTANCE: invention relates to disinfectants for disinfecting different types of water, containing a disinfecting agent and a solvent, wherein the disinfecting agent consists of a first component - branched oligomers of hexamethylene diamine and guanidine of formula (I) in form of hydrochlorides, phosphates or succinates thereof, and a second component - alkyldimethylbenzyl ammonium chloride or alkyldiemethyl (ethyl) benzyl ammonium chloride, wherein the disinfectant contains 1.5 wt %-50 wt % first component, and the weight ratio of the first component to the second component ranges from 3.5:1 to 10:1. The solvent is water. The invention also relates to use of said disinfectants to disinfect drinking or recycled water.
EFFECT: disinfectant which disinfects water with enhancement of bactericidal action thereof.
8 cl, 6 tbl, 8 ex
SUBSTANCE: invention relates to detergents and disinfectants and can be used in mechanical or manual methods of washing and disinfecting equipment in medicine, agriculture, at food companies, public services facilities and on transport. The agent contains the following ingredients in a defined ratio of components: alkyldimethylbenzyl ammonium chloride, didecyldimethyl ammonium chloride, glutaric aldehyde, benzyl alcohol hemiformal, mixture of nonionic surfactants, complexing agents, isopropyl alcohol, turpentine and water.
EFFECT: invention ensures high antimicrobial activity and high detergent power.
4 cl, 5 tbl
SUBSTANCE: invention relates to a biocidal composition containing hydrogen peroxide in concentration of 0.05-50% (wt/wt) and a compound of formula 1: (OH)(2-m)(X)(O)P-[(O)p-(R')q-(CH(Y)-CH2-O)n-R]m, where X is H or OH; each Y is independently H or CH3; m equals 1 and/or 2; each p and q is independently equal to 0 or 1, provided that if p equals 0, q equals 1; each n is independently equal to 2-10; each R' is independently an alkylene radical containing 1-18 carbon atoms; each R is independently H or an alkyl radical containing 1-18 carbon atoms; and R'+R≤20; in concentration of 0.01-60% (wt/wt), as a biocidal composition. The invention also relates to use of the disclosed composition as a biocidal composition, as well as for purposes where there is need for disinfection and/or sanitation activity.
EFFECT: composition has excellent biocidal activity.
25 cl, 9 tbl, 10 ex
SUBSTANCE: invention can be used on enterprises of the food industry to wash equipment and production facilities. Said detergent contains the following in wt %: sodium hydroxide 15-25, potassium hydroxide 10-15, sodium metasilicate (liquid glass) 1-3, nonionic surfactant (alkylglycoside C8-C10) 3-7, nonionic surfactant (alkyldimethylamine oxide) 1-5, potassium carbonate 1-3, sodium gluconate 0.1-3, sodium tripolyphosphate 0.1-1, ethylene glycol 1-3 and water - the rest.
EFFECT: high detergent power, wide range of dirt removed, high protection of metal from corrosion and reduced detergent consumption.
FIELD: power industry.
SUBSTANCE: invention relates to use of wind energy for demineralisation of saline water. A wind-driven demineraliser includes vertical cylindrical housing 1, cover plate 2 from above, and bottom 3. In the centre of the housing there installed is pipe 4 having flange 5 from above, and fixed from below in movable disc 6 with bearing plate 7, the cylindrical part 8 of which is arranged in hole 9 of fixed disc 10 attached to bottom 3. Pipe 4 throughout its height is filled from inside with a heat-accumulating substance with a phase transition. Above movable disc 6 there fixed on pipe 4 is a contact device of a rotary mass exchange unit, which consists of shells 11 with holes, which are attached to pipe 4, cylinders 14 and turbulators 15. Under cover plate 2 there fixed on pipe 4 is round shell 17 interconnected through pipeline 18 and valve 19 to a saline water feed system. Outside housing 1 there fixed is tank 24 with shield 25, which is connected to a demineralised water collection system. Vertical tubes 26 connected to atmosphere are attached to tank 24 from above.
EFFECT: invention allows simplifying a demineraliser design, improving air supply and increasing demineralised water heating.
3 cl, 1 dwg
SUBSTANCE: invention relates to the neutralisation of explosive and inflammable wastes of cellulose nitrates and can be used in the chemical industry. The method includes collection of sewage waters, containing cellulose nitrates, extraction of the cellulose nitrates from them and their further neutralisation. The neutralisation of wastes of the cellulose nitrates is carried out directly in a sludge-collector or a settling pond by processing of a deposit of the cellulose nitrates preliminarily buried under a multilayered drainage ground with slaked lime, placed in the form of a reagent layer above the deposit level. Additional buffer sand drainage layers, not less than 0.4 m thick, are placed between the deposit and the reagent layer and above it. The upper buffer sand layer after the formation is moistened with water, and the ground located above it represents alternately placed layers of ground, sand and fertile soil, with each layer being not thinner than 0.5 m.
EFFECT: invention makes it possible to simplify the method of neutralising industrial wastes of cellulose nitrates, to ensure environmental and technological safety of the process.
6 cl, 1 dwg, 3 tbl
FIELD: oil and gas industry.
SUBSTANCE: invention is related to hydraulic engineering, in particular to devices intended for separation of immiscible liquids and may be used at treatment of waste water polluted with grease, oil and other substances. The device comprises a continuous tape mounted at the driving and tension drums with axes. The drum axes are placed at the common frame fixed onboard of the ship. The tension drum made of magnet material is placed at water surface. In order to place the upper part of the continuous tape horizontally the tension drum is made of larger diameter than the driving drum. An electric motor, a reducing gear, a clutch coupling and separator are fixed on-board of the ship. A scraper for recovered oil gathering to the magnetic separator is placed at the continuous tape near the driving drum.
EFFECT: improving efficiency of oil gathering.
FIELD: process engineering.
SUBSTANCE: invention relates to sewage disposal plants. Proposed device comprises cylindrical housing 1 with cover 5 and bottom 6 incorporating the process activator 4. Housing top part accommodates effluent feed pipe and fouled extractant discharge pipe while housing bottom is provided with purified water discharge pipe and pure extractant feed pipe. Process activator is composed of inert nozzle made up of cylindrical ring with two hemispherical surface secured thereto in opposition so that diametral planes of hemispheres are aligned with top and bottom bases of cylindrical ring. Peaks of said hemispherical surfaces are located at ring axis and directed toward each other.
EFFECT: higher efficiency of water treatment.
2 cl, 2 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to water treatment. This plant comprises, at least, one elongated vertical chamber (11) for primary processing. Said chamber comprises fluid inlet (14) arranged at top part of chamber (11) to allow fluid to flow downward via chamber (11). Besides, it has device (20 or 24) to feed sterilizing agent, for example ozone or air enriched in ozone, into chamber (11) bottom section and its further displacement as bubbles through fluid flowing downward through chamber (11). Device (16) for removal of wastes is arranged at chamber (11) top section. UV lamp (29) for fluid processing is arranged in separate chamber (12) connected with primary processing chamber (11), or inside the latter. Several chambers (11) and (12) can be used for multilevel fluid processing.
EFFECT: efficient fluid treatment.
25 cl, 90 dwg
FIELD: power industry.
SUBSTANCE: invention relates to thermal deaeration of liquid and can be used for removal of non-condensing gases, mainly oxygen and free carbonic acid from feed water of a steam-turbine plant. A deaerator for feed water of the turbine plant includes storage tank 1 with non-condensing gas exhaust branch pipe, column 2 in the form of a water-jet ejector, a water supply device made in the form of centrifugal atomisers 3 fixed on pipelines 4, and steam supply header 5. Cone-shaped mist eliminator 7 is installed in storage tank 1 at the outlet of column 2. Each of centrifugal atomisers 3 includes a hollow body with a nozzle and a central core. The atomiser body includes a coaxial bushing rigidly attached to it with a nozzle fixed in its lower part.
EFFECT: invention allows reducing hydraulic resistance and increasing liquid atomisation degree.
SUBSTANCE: invention relates to method of obtaining polycarbonate at the boundary of phase separation and following electrolysis of sodium chloride-containing technological spent water, which includes the following stages: a) obtaining phosgene by interaction of chlorine with carbon monoxide; b) interaction of phosgene obtained at stage a) with at least one bisphenol in presence of, at least, one base, at least, one catalyst with basic character and, at least, one organic solvent with formation of polycarbonate and solution, which contains alkali metal chloride, c) separation and processing polycarbonate obtained at stage b), d) separation of solution, containing alkali metal chloride, which remains at stage c), from remains of solvent and remains of catalyst first of all by distillation with water steam and processing with adsorbents, first of all activated coal, e) electrochemical oxidation of, at least, part of stage d) solution, containing alkali metal chloride, with formation of chlorine, alkali and if necessary hydrogen, characterised by the fact that in separation of solution, realised at stage d) before its processing with adsorbents, value of solution pH is set at level 8 or lower and f) at least, part of obtained at stage e) chlorine is returned to stage a) and/or g) at least, part of obtained at stage e) alkali is returned to stage b) of polycarbonate synthesis.
EFFECT: simplification of technology, connected with possibility of supplying solution to electrolysis without purification, possibility of using components, separated from wastes, in the process.
14 cl, 4 ex
FIELD: physics, atomic power.
SUBSTANCE: invention relates to design of apparatus for irradiating fluid media and can be used in apparatus intended for sterilisation of fluids, activation of chemical reactions in fluid solutions, nuclear conversion of fluid radioactive wastes used particularly in medicine, food, chemical and atomic power industries. The chamber for irradiation of fluid media comprises a chamber with pipes for inlet and outlet of a fluid medium, wherein the pipes are vertically spaced apart, the chamber is in the form of two coaxial pipes of a variable diameter, the inner pipe forming a cavity which is open at the side of the outlet pipe, the diameter of which is greater than the diameter of the radiator at any section.
EFFECT: servicing and replacing the radiator without cutting flow of the fluid medium.
SUBSTANCE: invention relates to methods of purifying sewage waters from dyes. The method of purifying sewage waters from acidic and basic dyes consists in processing the waters with a sorbent with a caged structure. The sorbent represents a titanium-containing organometallic caged compound of formula Ti8O8(OH)4[O2C-C6H4CO2]6, containing residues of benzene 1,4-dicarboxylic acid as a linker, and in the lattice sites - clusters in the form of oxometallate polyhedrons, containing titanium ions.
EFFECT: increased degree of adsorption of acidic dyes with the preservation of the efficiency of adsorption of basic dyes.
SUBSTANCE: sand and grit catcher comprises a main receiving cylindrical container 1 installed within an additional container 2 of a larger volume. The main receiving container 1 houses a hollow cylinder 10, coupled to the supply water conduit 12. The cylinder 10 is divided by a horizontal partition wall 13 into two cavities 15 and 16. The horizontal partition wall 13 has a hole in the middle part. Water-discharge windows 20 are located in the walls of the cylinder 10 above the partition wall 13. Water-discharge orifices 6 are located in the walls of the sloping bottom 5 of the main container 1 relative to each other. Water discharge orifices 6 are equipped with sediment intercepting elements in the form of gates 7 with the possibility of vertical movement towards the hollow cylinder from the side of the main container 1. The bottom of the main container 1 and the additional container 2 is inclined at a various angles to the horizontal axis of the apparatus, secured in the base of the foundation 28. Wash pipeline 24 runs in the centre of the additional container 2. Container 2 in the top of its wall is connected with clean water discharge pipe 25. In this step-hydraulic water regime with sediment going through the cylinder 10, container 1 into the additional container 2 in the form of constricting or expanding areas, the sediment will flow into discharge manifold, being flushed from the inclined bottom walls, and clean water will flow from the upper layers of the additional container 2 into the discharge pipeline 25 and further to the consumer.
EFFECT: efficiency and reliability is improved in changing energy parameters of the incident flow with benthic and suspended sediment, and hydrodynamic impact on the bottom of the additional container is reduced.
3 cl, 1 dwg
SUBSTANCE: group of invention relates to a synergistic antimicrobial composition which includes a zinc salt of glyphosate and 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, and is intended for controlling the level of fungi and algae. The group of inventions also provides a method of inhibiting growth or controlling growth of microorganisms in building material by adding said synergistic antimicrobial composition, a coating composition containing said synergistic antimicrobial composition and a dry film made from said coating composition.
EFFECT: use of the group of inventions increases efficiency of inhibiting growth of microorganisms, provides more precise control of the growth of microorganisms without affecting health and/or the environment.
12 cl, 7 tbl