Submersible flat devices for direct osmosis

FIELD: chemistry.

SUBSTANCE: membrane device for direct osmosis is suitable for immersion in a pool for evaporation of salt water under the influence of solar radiation to pre-concentrate the brine. The membrane has a flat device configuration and includes a flat membrane base having the first and the second sides; the first flat membrane attached in parallel to the first side of the base; the second flat membrane attached in parallel to the second side of the base; the first channel for the flow between the first side of the base and the first membrane, where the first channel for flow has an input side and an output side; the second channel for the flow between the second side of the base and the second membrane, where the second channel for the flow has an input side and an output side; where the membranes around the perimeter are pressed, welded or glued to the base, the input for the inert in the conjunction with the input sides of the first and the second channels for the flow and the output for the inert in the conjunction with the output sides of the first and the second channels for the flow, while the channels for the flow are formed with a woven mesh that is inserted and fixed between the base and membranes.

EFFECT: concentration of brines with a high degree of salt concentration, reduced energy consumption, reduction of production areas.

5 cl, 9 dwg, 2 ex

 



 

Same patents:

FIELD: chemistry.

SUBSTANCE: claimed is method and deammonifying installation for purification of ammonium-containing sewage waters. Deammonifying installation for purification of ammonium-containing sewage waters contains aeration tank and hydrocyclone for separation of sludge from aeration tank into relatively heavy fraction, which includes bacteria, performing anaerobic ammonium oxidation, and relatively light fraction. Hydrocyclone contain input, connected with aeration tank, for return of separated relatively heavy fraction into aeration tank and upper output, connected with aeration tank, for discharge of separated relatively light fraction from hydrocyclone. Hydrocyclone contains cylindrical segment and conic segment. Surface of internal walls of conic segment is rough on certain parts. Rough surface of internal walls of conic segment has higher degree of roughness than surface of internal walls of cylindrical segment. Method of purification of ammonium-containing sewage waters is realised in deammonifying installation.

EFFECT: simplification of ammonium and nitrite conversion into elementary nitrogen.

33 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to ecology and environmental protection. For cleaning filtering system is erected and used on soil slope surfaces. Filtering system is composed of the slope soil top layer processed with aqueous solution of polyelectrolyte complex. The latter comprises the mix of hydrolysed polyarcylonitrile and polyethylene polyamine at the ratio of 1:3.5-1:4.5, wt %. Processed soil sorption capacity saturated, said soil is removed and disposed or recovered.

EFFECT: simplified cleaning, higher erosion resistance of run-off surfaces.

2 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to chemical industry. Mixed coagulant from mineral raw material is obtained by dissolution of boehmite-kaolinite bauxide in autoclave with hydrochloric acid with concentration 220 g/l with ratio S:L=1:6 for 1-3 hours in interval of temperatures 150-180C.

EFFECT: invention makes it possible to increase coagulation ability of mixed coagulant - hydrooxichloride of aluminium and iron with concentration by Al2O3 2,32-6,87 and by Fe2O3 0,94-1,02 wt %, in water purification: by turbidity and colour.

2 dwg, 6 tbl

Vacuum deaerator // 2558109

FIELD: power industry.

SUBSTANCE: vacuum deaerator contains a branch pipe for supply of chemically purified deaerated water to the distributing header, the first jet plate fitted with a finned overflow edge and a punched steam discharge sheet, the second jet plate having a finned overflow edge and a punched steam discharge sheet. Fins of overflow edges of the first and second jet plates are made rectangular at an angle 30-60 to vertical line with inclination towards drain from overflow edges of flows of the deaerated water, the cross-flow plate with cross-flow and overflow edges, three punched pipelines for supply of heating water to the cross-flow plate, the bubbling sheet with overflow edge, the punched pipeline for supply of heating water under the bubbling sheet, at least, two pipelines for discharge of non-evaporated heating water to the inlet of the bubbling sheet, the partition blocking discharge of non-evaporated heating water into the flow of deaerated water drained from the bubbling sheet, passing through the bubbling sheet at least two L-shaped boxes of heating vapour cross-flow, installed evenly along the deaerator housing in the space between the overflow edge of the bubbling sheet and the punched pipeline for supply of heating water under the bubbling sheet, at least one branch pipe for discharge of vented steam and one branch pipe for discharge of deaerated water.

EFFECT: increase of overall performance of the vacuum deaerator.

3 dwg

FIELD: testing equipment.

SUBSTANCE: invention relates to technology of pressure test of electro-hydraulic-mechanical systems and can be used for degassing the working fluid in technical devices using in their constructive solutions the flowing hydraulic tanks of open type. The method comprises degassing the working fluid on the grid in the flowing hydraulic tanks, imparting the grid of low-frequency transverse vibration, and at the inlet of the grid by bubbling the gas liquid layer is created with a high-frequency pulsating low-intensity pressure. The flowing hydraulic tank of open type (1) comprises a lid (2), partitions (3, 4), a grid (5), the pipes of discharge (6) and intake (15) of the working fluid, a drain (7), intermediate (18), intake (14) cavities and involves the installation of a grid (5) on the elastic supports (8). Below the grid (5) on the side of the flow outlet into the cavity (18) a pneumatic dynamic vibrator (9) is mounted with the modulated phase of gas oscillation, the outlet nozzle (10) of which is mounted on the grid (5).

EFFECT: invention provides increased efficiency of degassing fluid, the degassing process intensification, which enables to improve and expand the indices of quality of electro-hydraulic-mechanical systems and their components.

2 cl, 1 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to a polymer obtained via condensation polymerisation. The polymer is obtained from at least two monomers: acrylic monomer and alkylamine. Said polymer is modified such that it contains a dithiocarbamate salt group capable of cleaning one or more compositions containing one or more metals. The polymer has molecular weight of 500-200000.

EFFECT: obtaining polymers for various media as means of purification from metals, including waste water systems.

13 cl, 5 ex, 1 dwg

FIELD: chemistry.

SUBSTANCE: inventions relate to production of desalinated water and can be used for obtaining drinking water from sea and salt waters. Extraction of water from saline solution is carried out with application of selective solvent, containing carboxylic acid, which has carbon chain from 6 to 13 carbon atoms long. In order to realise the method saline solution emulsion in selective solvent is prepared, selective solvent is heated before and after contact with saline solution to obtain first phase, which includes selective solvent and water from saline solution, dissolved in selective solvent, and second phase, including highly-concentrated remaining part of saline solution. After that, first phase is separated from second phase, first phase, including selective solvent and dissolved water, is extracted from highly-concentrated remaining part of saline solution or highly-concentrated remaining part is extracted from saline solution from first phase. First phase is cooled after extraction to precipitate water from selective solvent and precipitated water is removed from selective solvent.

EFFECT: invention provides obtaining almost pure fresh water.

19 cl, 15 dwg, 2 ex

FIELD: process engineering.

SUBSTANCE: invention can be used for desalting of sea, hard and/or contaminated water by direct osmosis desalting. To this end, contaminated feed solution with water at first osmosis pressure is forced through semi-permeable diaphragm to discharge side that has the flow of carrier solution with second osmosis pressure on discharge side of semi-permeable diaphragm. Diluted discharge solution is heated to agglomerate discharged diluted substance to two-phase flow containing liquid phase of agglomerated dissolved substance and liquid water phase. Then, agglomerated dissolved substance is separated to get enriched flow to be cooled to obtain cooled single-phase water-rich flow to be subjected to removal of residual dissolved substance to produce purified water.

EFFECT: higher quality and desalting and purification.

23 cl, 4 dwg, 2 tbl

FIELD: chemistry.

SUBSTANCE: method of purification of phenol-containing sewage waters of alkali-hydrolysis processing of rice husk includes preliminary desiliconisation of phenol-containing sewage waters by their processing with hydrochloric acid with precipitation of solid and separation from solution of silicon-containing product and electrochemical oxidation in presence of chloride ions in electrolytic cell with application of direct current. Process of electrochemical oxidation is carried out with concentration of chloride ions 0.10-0.11 mol/l in non-diaphragm electrolytic cell with application of ruthenium-titanium oxide anode and titanium cathode for 70-90 min with current density 100-150 mA/cm2 with constant mixing. Required concentration of chloride ions is provided by dilution with water of phenol-containing sewage waters after their desiliconisation.

EFFECT: invention makes it possible to increase degree of purification of polydisperse concentrated phenol-containing sewage waters of alkali-hydrolysis processing of rice husk from phenol and other organic pollutants.

3 cl, 1 tbl, 2 ex

FIELD: agriculture.

SUBSTANCE: device comprises a flotation device, a frame, a hydraulic drive. On the frame the longitudinal rods are pivotally mounted, and on their cantilever portion the linkage for attachment of the drum is mounted with the ability of movement in a vertical plane. The drum is mounted with the ability of replacement of the drum holder, at that the drum is rotated by the hydraulic motor through the belt drive in the direction opposite of the flotation device movement.

EFFECT: improvement of quality of the implementation of the technological process of cleaning the water reservoirs from blue-green algae and reduction of energy intensity.

2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to power engineering, transport, petrochemical and other industries. Membrane module comprises housing (4), filtration elements arranged therein and mounted on tube plate (15) with the help of unions (18), hydraulic accumulator (3), feed branch pipe (11), lateral (1) and bottom (10) discharge branch pipes, perforated distributing grid (14) communicated with said branch pipes (1, 10, 11), and valves (5, 6, 7). Filtration elements consist of cylindrical porous substrate (12) and nanostructured membrane (8) constricted by bottom (9) and top (2) adapters from below and above. One filter element is arranged at the centre of housing (4) while other filter elements are arranged in one row to make a hexagonal package. Guide plate (19) is secured above tube plate (15) and has holes for passage of unions (18) to make therewith a flat slit channel. Outer side surface of unions (18) is arranged to contact with inner side surface of guide plate (19) holes. Lower ends of filtration elements are embedded into appropriate orifices of distributing grid (14) to form annular channels there between. Separation shell (13) is arranged inside housing (4), along its inner side surface, to make a circular channel there between. Top part of separation shell (13) is connected with peripheral section of guide plate (19). Guide plate (19) cannot get beyond separation shell (13) in radial direction.

EFFECT: higher efficiency of cleaning.

5 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to selective separation of multicomponent gas mixes and can be used for separation of lean neon-helium mix of stripping gas. Proposed plant comprises pre-separator of neon-helium mix with rectifier, stripped gas separator and neon-helium mix feed line. It includes membrane module with high- and low-pressure chambers separated by selective layers. There is the channel to feed initial neon-helium mix to membrane module. Channel of enriched neon discharge from membrane module high-pressure chamber connected with gas analyser including analysed gas circuit. Verification mix channel and output signal connector are connected with enriched neon of membrane module equipped with actuator. Channel to discharge enriched helium from low-pressure of membrane module connected to membrane compressor. Besides, there is the unit of changing adsorbers with helium and neon channels at the outlet. Note that membrane compressor comprises first and second stages, each including suction and pressure lines and appropriate bypass line. Note here that first stage bypass line communicated pressure line of first stage with initial neon-helium mix feed to membrane module. Second stage bypass line communicates compressor second stage pressure line with suction line of the same stage. Note here that bypass line of at least one stage of membrane compressor is equipped with pressure control line Note here that the unit of changeover adsorbers is arranged between pressure line of said first stage and suction line of said second stage.

EFFECT: higher efficiency, lower costs.

8 cl, 4 dwg, 1 tbl

FIELD: chemistry.

SUBSTANCE: invention relates to biotechnology. Claimed is container for isolation and identification of microorganism. Container includes upper part, which has wide internal diameter, and lower part, which has capillary tube, middle conic part, connecting said upper and lower parts, and optic window on the bottom and/or on one or more than one wall of container. Optic window is less than 0.1 inch (2.54 mm) thick and is transparent for wavelength of near-infrared, visible and/or ultraviolet light spectrum. Window contains quartz, quartz glass, sapphire, acrylic resin, methacrylate, cyclic olefin copolymer, cycloolefin polymer or any their combination. Capillary tube has internal diameter from 0.01 inch (0.03 mm) to 0.04 inch (1.02 mm).

EFFECT: container ensures isolation of microorganisms, which are free of interfering materials and compatible with fast identification technologies, from hemoculture and other complex samples.

8 cl, 12 dwg, 1 ex

FIELD: process engineering.

SUBSTANCE: invention relates to separation, concentration and desalination of various solutions by reverse osmosis and ultrafiltration and can be used in food, pharmaceutical and microbiological industries, etc. Proposed membrane comprises tubular membrane module composed of porous body with semi-permeable membrane applied thereon, turbulence promoter, initial solution feed pipes and filtrate and concentrate discharge pipes. Said porous body is composed of stationary hollow cylinder with inner surface made up of converging truncated cones sharply changing into cylinders. Turbulence promoter is composed of moving hollow body with outer surface being made of diverging truncated cones sharply changing into cylinders. Said turbulence promoter is fitted in stationary porous body for eccentric rotation and reciprocation actuated by friction assemblies. Note here that angles of inclination of truncated cone and turbulence promoter generating lines are set equal.

EFFECT: higher efficiency.

4 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of membranes, particularly, pervaporation composite membranes and may be used for separation of mixes by pervaporation or nanofiltration. Membrane consists of porous backing and coating of poly(1-trimethyl silyl-1-propyne) including filler of aggregates. Coating maximum thickness makes 25 mcm. Proposed method comprises application of poly(1-trimethyl silyl-1-propyne) solution, its evaporation and thermal treatment for removal of residual amount of solvent.

EFFECT: high selectivity combined with increased rate of pervaporation flow.

16 cl, 3 dwg, 1 tbl, 5 ex

FIELD: process engineering.

SUBSTANCE: invention relates to separation of multicomponent gas mixes and can be used for extraction of neon-helium mix as byproduct. Proposed unit comprises reducing device with inlet connected with neon-helium mix source composed of air separation unit, booster compressor with suction and pressure lines, target product discharge pipeline and gas separation unit made up of two interconnected first and second diaphragm devices. Low-pressure chamber of the first diaphragm device is communicated via booster compressor with high-pressure chamber of the second diaphragm device. High-pressure chamber discharge line of the latter communicates with high-pressure chamber of the first diaphragm device. Low-pressure chambers of both diaphragm devices are directly connected with booster compressor suction line while discharge line of the latter is connected with pipeline. High-pressure chamber of second diaphragm device is connected to said pressure line via reducing device.

EFFECT: higher efficiency of concentration.

3 cl, 2 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment systems including local systems of tap water preparation from municipal water supply system waters. Proposed device comprises tight hollow housing with inlet and discharge branch pipes to feed water to be filtered and discharge filtered water, ceramic membrane filter arranged inside housing, two electrodes arranged inside ceramic membrane filter and connected with HF voltage source arranged outside filter casing, branch pipe to feed compressed air, and discharge branch pipe.

EFFECT: automatic regeneration of filter, simplified design and operation.

4 cl, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to membranes. Membrane case cylindrical section comprises inner element with radial winding of fibre made thereon, fibre winding and envelopment laid in fibre layer and including, at least, two bearing elements. Proposed method comprises making internal sleeve to coil radial fibre thereon in continuous process and fitted envelopment with two lengthwise bearing elements or envelopment section to receive said lengthwise bearing elements.

EFFECT: possibility of application in nanofiltration, ultrafiltration, ion exchange and reverse osmosis.

20 cl, 5 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to an apparatus for purifying tetrafluoromethane. The apparatus is a radial membrane module consisting of high and low pressure chambers separated by a membrane. Each chamber has a distributing disc which provides flow in the high pressure chamber from the periphery to the centre, and in the low pressure chamber - from the centre to the periphery, and at least two flow splitters connected in series or in parallel, which are connected to the inlet nozzle of the high pressure chamber and/or the outlet nozzle of the low pressure chamber and/or simultaneously to the nozzles of the high and low pressure chambers. The invention also relates to a method of purifying tetrafluoromethane using said apparatus.

EFFECT: use of the present invention enables to obtain tetrafluoromethane with impurity content, determined via gas chromatographic analysis, of less than 1-10-4%.

2 cl, 1 ex, 1 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to water treatment equipment. Proposed device comprises tight hollow body 9 with inlet and outlet branch pipes 1, 2 to feed initial fluid and discharge treated water, ceramic membrane filter 8 arranged inside said body. Said filter has inner chamber filled with activated carbon 7. Besides, proposed device comprises inductor 6 arranged in said body to surround ceramic filter. High-frequency voltage is fed to said inductor from external generator 5 for heating said filter in electromagnetic field of HF currents. Filter includes also branch pipe for flushing activated carbon 4, drain branch pipe 3 flushing water feed branch pipe.

EFFECT: automatic filter recovery, simple design, ease of use.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: mesh is suggested, its cells have shape of connected regular polygons, at their tops spheres are located, they are connected with each other by cylindrical jumpers (ribs of polygons), their diameter is 0.1-0.8 of sphere diameter. As a rule, individual mesh cell is made in form of triangle, square, hexagon or rhombus, but can be made in shape of other polygons. At that cell in shape of the equilateral triangle ensures maximum rigidity of the mesh, cells in shape of the rhombus or square are simpler and cheaper in comparison with other, and mesh with cell in shape of regular hexahedron has minimum hydraulic resistance, but is most labour intensive.

EFFECT: mesh minimizes the hydraulic resistance and volume of blind zones created in roll elements.

6 cl, 5 dwg, 1 tbl

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