The method of localization of hydrazine and/or its derivatives, aliphatic and/or aromatic amines
(57) Abstract:Usage: localization of the Straits of toxic substances on the surface of the land. The inventive effect of the reagent on the shed toxic substances ( hydrazine and / or its derivatives, aliphatic and / or aromatic amines ), as the reagent is used an aqueous solution containing salts of zinc and / or magnesium in an amount of not less than 30 wt.%, when a volume ratio localizable substance and reagent 1:1o1.5. table 2. The invention concerns the protection of the environment from toxic compounds, namely localization of toxic chemicals such as hydrazine, its derivatives, aliphatic or aromatic amines.The following data shows the allowable concentrations of substances localization (according to the book "Harmful substances", Lenizdat, 1985).The name of the substances MPC, mg/m3< / BR>Hydrazine 0,1
The triethylamine 10
By ingestion of these substances on the soil surface occurs simultaneous penetration in soil, groundwater, and air, resulting in dramatically disrupts the environment.Basically what s use of chemical, physico-chemical and mechanical methods, and different for each substance.There is a method of localization of hydrazine, which includes the most common techniques for prevention of consequences of emergency situations, accompanying the Strait of substances of the class of amines.The method includes the following operations: the construction around the Strait of the dike; the impact of the Strait reagent with the aim of localization; neutralization of the Straits.The essence of the method consists in effect of the reagent on the Strait of hydrazine and/or its derivatives, aromatic and/or aliphatic amines.In table. 1 shows comparative data of known and proposed methods.As can be seen from the data table. 1, the proposed method in comparison with the known system includes one main stage.The method is as follows.V a R I a n t 1. On the surface of the soil is the Strait of hydrazine in the amount of 100 liters spill area treated with 100 l of a solution having the composition of,
NaCl etc. 10
Water the rest
After processing take soil samples for the determination of the effect of containment penetration of hydrazine in ocvi is Strait 30% aqueous solution of diethylamine in the amount of 100 L. The spill area is treated similarly to variant 1. After processing take soil samples to determine the depth of penetration of diethylamine in the soil and analyze its content in the atmosphere.The results are presented in table. 2.V a R I a n t 3. On the surface of the soil is the Strait of aniline in the amount of 100 liters spill area treated with 100 l of a solution (composition listed in option 1). Analyses after treatment similar to options 1, 2.As can be seen from the data table. 2, already after 30 min prevents the ingress of substances into the soil and their entry into the atmosphere (the content of substances below the maximum permissible concentration). According to the Institute of hygiene and occupational pathology RSFSR Ministry of health report contract N 20 (92) 1548), respiratory effects of the product, the resulting localization is missing. After intragastric administration to determine LD50the compound obtained is referred to 111 hazard class (source hydrazine hazard class 1) The METHOD of LOCALIZATION of HYDRAZINE AND/OR ITS DERIVATIVES, ALIPHATIC AND/OR AROMATIC AMINES, including exposure to the reagent, wherein the reagent is used as an aqueous solution containing salts of zinc and/or magnesium in an amount of not less than 30 wt. at about
FIELD: means for protecting against harmful chemical agents.
SUBSTANCE: method for degassing army outfit materials polluted with organophosphorus physiologically active substance, namely O-(3,3-dimethylfluorobutyl)- methylfluorophosphonate involves treating outfit within 30 min. in electrochemically activated water-salt solution of sodium chloride - soda catholyte with pH value of 12.0 - 12.5 under temperature of 50oC, with liquid value of 8.0 l/kg under the action of ultrasonic field with frequency of 18.6 kHz and intensity of 0.76 W/sm2; drying thereof in hot air under temperature of 80oC within 15 min.
EFFECT: reduced treatment time, increased output, simplified system of army provision with degassing solutions and components for preparation thereof.
FIELD: detoxification and disinfection.
SUBSTANCE: invention relates to detoxification of chemical weapons and disinfection of bacteriologic weapons as well as elimination of chemical weapon application consequences. Bifunctional formulation according to invention contains aqueous solution potassium fluoride peroxosolvate as inorganic oxidant, organic solvent, and (additionally) high-molecular weight compounds of cellulose ethers, preferably hydroxyethylcellulose, with surfactant additives. Following proportions of components are used, wt %: potassium fluoride peroxosolvate 20-21, hydroxyethylcellulose 2.5-3.5, surfactant 0.0085-0.01, organic solvent 5-8, and water - the rest. Upon evaporation of water from formulation on treated surface, not permeable for poisons and bacteriologic substances strong film is formed considerably decreasing harmful effects.
EFFECT: increased protection effect.
1 dwg, 12 tbl
FIELD: chemical composition against chemical toxic agents.
SUBSTANCE: claimed invention includes addition of water-absorbing polymer in form of fine dispersed dust in 7 mass % aqueous foam-forming agent solution in amount of 0.050-0.075 mass %. It causes to improved foam stability by 18.0-18.2 times due to forming in aqueous solution structure of fine dispersed polymer particles. Said particles in process of foam formation transfer into foam films and prevent dehydration thereof. Increased foam stability is also caused by dissolution of acrylamide polymer in small amount in water followed by forming of mixed adsorption layer on phase interface with increased structural characteristics.
EFFECT: composition against chemical toxic agents of improved properties.
2 cl, 1 tbl, 2 ex
FIELD: environmental pollution control.
SUBSTANCE: invention relates to industrial process of detoxifying sea and lagoon sediments or grounds polluted by stable organic trace pollutants (e.g., dioxins and furans, polychlorobiphenyls, aromatic polycyclic hydrocarbons) and inorganic trace pollutants (e.g., Hg, Cr, Cu, Zn, Pb, As, Cd, etc.). Detoxification process comprises following stages: (i) thermal desorption of organic pollutants in trace amounts from mud or ground and removal of volatile metals from furnace operated at 300 to 700єC to form first gaseous stream containing removed organic pollutants and volatile metals and stream consisting of remaining solids; and (ii) extracting heavy metals from the stream of remaining solids with the aid of inorganic acids or chelating compounds, in one or more steps, to produce chemically dissolved above-indicated heavy metals and essentially detoxified mud or ground having characteristics allowing thus treated mud or ground to be returned to their original place.
EFFECT: achieved complete detoxification with minimum environmental harm.
16 cl, 1 dwg, 3 tbl, 2 ex
FIELD: decontamination of technological spillage of liquids containing highly toxic component of rocket propellant-1,1 dimethyl hydrozine.
SUBSTANCE: layer of schungite material is poured on floor or site where spillage is expected to occur. Used as schungite material is material obtained from schungite rock of III kind at mass content of carbon of 25-35% and dispersity of 0.5-5.0 mm; schungite material is poured in layer of 10-25 cm.
EFFECT: enhanced efficiency of decontamination; facilitated procedure.
2 dwg, 2 ex
FIELD: detoxification methods.
SUBSTANCE: invention relates to detoxifying polychlorinated organic wastes containing toxic high-boiling substances. For this aim, wastes are hydrogenised on supported palladium catalyst at 60-130°C and pressure 10-50 atm in presence of 10-20% sodium hydroxide solution in biphasic water/hydrocarbon system. According to invention, hydrocarbon solution of waste, prior to be subjected to hydrogenation, is filtered at 70-100°C through filter of nonwoven polymeric material allowing waste particles at least 1 μm in size to be retained, after which reaction mixture is charged with lower aliphatic alcohol in amount 1 to 20 wt %.
EFFECT: essentially increased waste processing productivity with minimum formation of secondary toxic substances.
5 cl, 1 tbl, 12 ex
FIELD: isolation and neutralization of burial of hazardous matters on the bottom of water basins.
SUBSTANCE: method is based upon limiting contact of hazardous matters with water by means of covering them with loose material. Accumulations of hazardous matters washed out at bottom ground from metal tanks are neutralized by means of covering with crushed shale. Preferably the hazardous matters on the bottom which matters accumulate in metal vessels, missiles, bombs and in cases of sunken vessels should be covered with crushed aluminosilicate before being covered with crushed shale.
EFFECT: improved efficiency of neutralization.
2 cl, 1 tbl
FIELD: continuous operation ejection installations.
SUBSTANCE: ejection installation can be used for destroying arms provided with chemical poisoning matters, namely poisoning gases. Installation has system for storing and feeding neutralizing solutions, system for supplying matter to be processed, ejector provided with mixing chamber, diffuser and branches for supplying main working stream and matter to be processed, flow-through reactor connected in series with diffuser, container for storing products of reaction and gas cleaning system. Installation is provided with system for supplying matters under pressure to reactor, namely, neutral gas, and system for checking seal-proof of connections. System for supplying neutral gas to flow-through reactor has at least one nozzle apparatus and lock-adjusting and control equipment which are connected together and with source of neutral gas under pressure. Systems for supplying and storing neutralizing solutions and feeding processed matter are connected with branches for supplying main working flow and processed matter of ejector. Flow-through reactor is made in form of pipeline with at least one axial turbine mixer, disposed inside reactor, for activating chemical reactions. Nozzle apparatus of system for supplying neutral gas into flow-through reactor is mounted in front of axial turbine mixer. System of checking connections for seal-tightness is made in form of at least one ring-shaped chamber embracing item to be inspected, aids for creating excess pressure of inert medium and test equipment. All the units of system are connected together and are filled with inert medium. Conditions of processes of chemical conversion of poisoning matters in ejector are improved and level of inspection of parameters of operation is increased.
EFFECT: improved ecological cleanness; improved safety of detoxication process.
4 cl, 3 dwg
FIELD: methods of treatment of halogen-containing solid or semisolid waste products of a fume gas clearing process.
SUBSTANCE: the invention is pertaining to a method of treatment of halogen-containing solid or semisolid waste products of a process of clearing of a fume gas. The solid or semisolid wastes are comminuted. Then they are exposed to the first stage of extraction by preparation of a water suspension having pH at least equal to 10. The solid and liquid materials separate from each other. The process is conducted one or more times. The produced halogen-containing solid or semisolid waste products dry. The solution produced at the stage of separation regenerate and treat with acid composition to obtain pH between 7 and 10, preferably between 9.25 and 9.75. The method allows to transform the halogen-containing solid or semisolid waste products into one or more useful products, for example, a road salt free of heavy metals. The method is simple and cost-saving.
EFFECT: the method allows to transform the halogen-containing solid or semisolid waste products into useful products and the process is simple and cost-saving.
26 cl, 2 dwg, 2 ex, 7 tbl