The method of purification of milk from radiocesium

 

(57) Abstract:



 

Same patents:

FIELD: food industry; chemical industry; petrochemical industry; pharmaceutical industry; methods and devices of separation of liquid mediums.

SUBSTANCE: the invention presents the method and the device intended for utilization in food industry, chemical industry, petrochemical industry, pharmaceutical industry and ensures an increased efficiency of changing the physical-chemical structure of the liquid mediums. The liquid medium is fed in the form of the two counter-directed streams. The streams are sent in the parallel planes, swirled in the opposite directions, subjected at the mechanical loading to action of the hydraulic impacts and crumpling creating the liquid medium swirling turbulent streams rubbing from the center to the periphery. The liquid medium is fed by cycles, returning from periphery to the rotation center. After the separation process completion conduct processes of settling and filtering. The two counter-directed streams are subjected to swirling in the opposite directions at the identical speeds. In the device the operational tool is made in the form of disks, which are arranged coaxially with the capability of counter-rotation. On each disk there are the ring-shaped and radial grooves. The disks ring-shaped grooves and prominences are installed with a clearance into each other. The volume of the chamber between the disks and the body is connected by the channels to the inlet channels of the liquid medium feeding system. On walls of the chamber and on the external surface of the disks there are the ring-shaped and radial grooves. The disks ring-shaped prominences are mounted with a clearance in the ring-shaped grooves of the walls of the chamber. The shaft of the disks rotation is made horizontal.

EFFECT: the invention ensures an increased efficiency of changing the physical-chemical structure of the liquid mediums.

4 cl, 5 dwg

FIELD: technological processes.

SUBSTANCE: method consists in purification of milk contaminated with cadmium with concentration of (1.1-3.0)±0.1 MPC (maximum permissible concentration), by means of polyfepan powder in proportion of 0.3:1000, contact is executed at temperature of 6°C during 20 minutes, or in proportion of 0.6:1000 at temperature of 45°C during 5 minutes with mixing. Sorbent cleaning is done by centrifugal method in separator-milk purifier.

EFFECT: method allows reduction of cadmium concentration in raw milk.

2 tbl, 2 ex

FIELD: food industry.

SUBSTANCE: this invention covers method of raw milk purification from toxic metals and includes adding of a sorbent agent, purification from sorbent agent, herewith raw milk intoxicated with metals in (1.1…4.0)±0.1 MAC concentration undergoes purification. Purification is performed until 0.5 MAC ratio is reached; contact with a sorbent agent is performed at 6°C, 5 minutes with mixing. Purification from a sorbent agent is performed by a centrifugal method at the separator-milk purifier for cold purification, herewith grapheme powder of 0.1:1000 ratio is used as a sorbent agent.

EFFECT: decrease of toxic metals concentration in raw milk to (95…97)±1% degree of purification.

1 dwg, 2 tbl, 2 ex

FIELD: food industry.

SUBSTANCE: invention relates to a method for purification of defatted milk contaminated with copper, lead and zinc in a concentration from 0.13, 0.23 and 0.34 of MAC respectively. According to the method, one introduces into defatted milk with residual fat content equal to 0.10-0.20% a sorbent preliminarily hydrated with distilled water which sorbent may be represented by alumina oxide powder, broken rice or licorice roots extraction residue, the weight ratio of milk to the sorbents being 25:1. Then one proceeds with maintenance during 20-30 minutes at a temperature of 50-55°C and the sorbent removal by centrifugal method in a milk purifier separator.

EFFECT: invention allows to reduce concentration of copper, lead and zinc and bacterial population in milk and to produce a product of better quality.

1 tbl, 1 ex

FIELD: process engineering.

SUBSTANCE: method of making the filtration element comprises feeding polypropylene into extruder proportioner, smelting it to fluid state, feeding fluid polypropylene to extruder aerodynamic nozzle, air feed to said nozzle, extruding at least one thread to be wound so that tubular structure of filtration element is produced with flat inner surface and threaded outer surface with high density of thread winding at ribs of threaded surface and set of channels extending in helical line from outer surface towards inner surface of said tubular structure. Produced filtration element is used in method of fluid cleaning including fitting said filtration element into cleaning chamber of said filtration element, forcing the fluid therein and through set of filtration element channels and discharging said fluid therefrom. Milk or water can be used as said fluid.

EFFECT: higher efficiency and quality of filtration, simplified design.

7 cl, 2 dwg

FIELD: food industry.

SUBSTANCE: milk product electric treatment device contains a body accommodating an electrode assembly, nipples for liquid input and output and for sediment drain and a current source placed outside the body. The device body is designed in the form of a horizontally positioned hollow cylinder with butt-end caps. Upstream the liquid output nipple, the body has a transition part shaped as a Venturi tube; inside the cylinder, downstream the liquid input nipple, a divider in the form of mesh and preliminary purification mesh electrodes, connected to a separate current source, are sequentially attached. The electrode assembly is designed in the form of cylindrical surfaces consisting of an anode and a cathode coaxially positioned and attached to two discs opposite relative to each other.

EFFECT: elimination of pathogenic microflora, antibiotics, pesticides, disinfection substances, toxins, nitrates, nitrides, heavy metals removal combined with preservation of nutritional and consumer properties of milk products.

1 dwg

FIELD: medicine.

SUBSTANCE: group of inventions relates to field of therapy and/or prevention of diseases in mammals, in particular humans. Group of inventions includes medication for treatment and/or prevention of cardiovascular disease, and/or inflammatory disease, and/or liver disease, and/or neurological disease, and/or steatosis by increasing content of polyunsaturated fatty acids in mammal's blood, representing dairy product of ruminants with reduced cholesterol content, where cholesterol content constitutes from 10 mg/100 g of fat to 150 mg/100 g of fat, as well as application of dairy product of ruminants with reduced cholesterol content, in which cholesterol content constitutes from 10 mg/100 g of fat to 150 mg/100 g of fat, for treatment and/or prevention of cardiovascular disease, and/or inflammatory disease, and/or liver disease, and/or neurological disease, and/or steatosis by increasing content of polyunsaturated fatty acids in mammal's blood.

EFFECT: obtaining medication for treatment and/or prevention of cardiovascular disease, and/or inflammatory disease, and/or liver disease, and/or neurological disease, and/or steatosis.

18 cl, 5 tbl, 1 ex

FIELD: food industry.

SUBSTANCE: cheese whey is cleaned from casein dust and grease. Nanofiltration to 20÷30% content of dry substances with simultaneous 25÷50% demineralization, followed by crystallization, is carried out by means of the 3-fold 8-hour cyclic heat treatment of crystallizate. Said treatment consists in sequentially heating it with hot air at the temperature of 60°C for 4 h and cooling with cold air at the temperature of 0°C for 4 hours in each cycle. The crystallization is combined with evaporation till the dry substances concentration of ≥50%, with the subsequent separation into lactose and the demineralized delactosed cheese whey and drying of both components. Heating in each cycle is carried out to the temperature of 32°C, and cooling - to the temperature of ≤10°C.

EFFECT: intensification of the crystallization process.

2 dwg, 2 ex

FIELD: chemistry.

SUBSTANCE: invention relates to a method for liquid-phase carbonylation of reagent capable of carbonylation, selected from methanol and/or its reactive derivative to obtain a carbonylated product selected from acetc acid, acetic anhydride and their mixtures, involving bringing the reagent capable of carbonylation into contact with carbon monoxide in a liquid reaction composition in a reaction zone, where the said liquid reaction composition contains a carbonylation catalyst selected from iridium, rhodium and their mixtures, methyl iodide, salts of an alkali metal or alkali-earth metal, capable of generating iodide ions and corrosive metal impurities, where the liquid reaction composition is separated in a single equilibrium evaporation zone to obtain a vapour fraction containing a carbonylated product and a liquid fraction containing a carbonylation catalyst solution, where the said carbonylation catalyst solution contains a carbonylation catalyst, an alkali or alkali-earth metal and corrosive metal impurities, and where at least a portion of the carbonylation catalyst solution is returned to the reaction zone. The carbonylation catalyst solution returned to the reaction zone has low content of corrosive metal impurities and concentration of alkali or alkali-earth metal in the liquid reaction composition is controlled by bringing into contact at least a portion of the carbonylation catalyst solution with a cation-exchange resin whose active portions are partially saturated by a sufficient amount of alkali or alkali-earth metal.

EFFECT: obtaining carbonylation catalyst solution with low content of corrosive metal impurities with retention of concentration of alkali and/or alkali-earth metal in the catalyst solution at the same time.

20 cl, 13 ex, 2 tbl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method of increasing utilisation factor of silver during adsorption and removal of decyl iodide from acetic acid which contains decyl iodide as an impurity, by passing acetic acid through a packed layer of a cation-exchange resin at temperature 50°C or lower, where the cation-exchange resin is a macroporous-type polystyrene resin with average particle size ranging from 0.3 to 0.6 mm and average pore size from 15 to 28 nm, and where the resin has sulpho groups, and silver occupies 40-60% of the active sites of sulpho groups.

EFFECT: high utilisation factor of silver during adsorption and removal of decyl iodide from acetic acid.

FIELD: chemistry.

SUBSTANCE: invention relates to a method of extracting betaine from a solution obtained from sugar beet. The method for chromatographic extraction of betaine from a solution obtained from sugar beet, which contains betaine, polyols and carboxylic acids, involves changing the pH of the solution to a certain value, chromatographic separation of the obtained solution on a weakly acidic cation-exchange resin in H+ form, elution of betaine after polyols and carboxylic acids, and collection of fractions rich in betaine; use of a weakly acidic cation-exchange resin in H+ form for chromatographic extraction of betaine from a solution obtained from sugar beet.

EFFECT: method provides efficient extraction of a pure betaine fraction.

42 cl, 6 dwg, 1 tbl, 7 ex

FIELD: engines and pumps.

SUBSTANCE: device (100, 200) for reduction of acidity of motor oil of internal combustion engines includes container (101, 202), through which certain amount of motor oil flows; with that, the container includes ion exchanger (102, 202) representing a univalent cation exchanger, and container (101, 201) that is located in motor oil flow. The invention also describes a control method of acidity of motor oil, at which oil must pass through an acidity control device according to the invention. Besides, the invention relates to a transport vehicle provided with an acidity control device of motor oil according to the invention.

EFFECT: reduction of motor oil acidity; increasing service life of oil.

11 cl, 11 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a method for removal of organic compounds from aqueous solution. Method includes steps a)-c). Step a) preparing an aqueous solution containing an organic compound and a hydrophobic organic solution, which comprises a liquid cation exchanger, wherein liquid cation exchanger is hydrophobic. Step b) bringing aqueous solution into contact with organic solution. Step c) separating organic solution from aqueous solution. Organic compound is a compound of formula (I) NH3+-A-COOR1 (I), where R1 represents hydrogen, methyl, ethyl or a negative charge, A is an unsubstituted straight-chain alkylene group with at least three carbon atoms, and liquid cation exchanger is a fatty acid. Disclosed method enables to achieve maximum displacement of equilibrium distribution in direction of hydrophobic organic phase.

EFFECT: invention also relates to reaction mixture for removal of organic compounds from aqueous solution.

25 cl, 5 dwg, 2 tbl, 4 ex

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