Method of deep biological purification of sewage waters from organic compounds and ammonium salt nitrogen
SUBSTANCE: invention can be used for biological purification of household and close to them in composition industrial sewage waters from organic compounds and nitrogen of ammonium salts. Initial sewage water is processed in alternating zones with reduced oxygen regime and aerobic regime with further settling biologically purified water and recirculation of active silt. First, sewage water is processed in two zones with reduced oxygen regime, where growth of attached microorganisms is performed on planar inert material with specific area of its surface in first zone 17 m2/m3 and in second- 21 m2/m3 and hydraulic load in first zone not higher than 1.38 m3/m2 of carrier and in second - 0.43 m3/m2 of carrier. After that, processing is carried out in two aerobic zones with specific surface of inert charge material 24 m3/m2 and hydraulic load 0.32 m3/m2 of carrier in each. Recirculated mixture of sewage water and active silt from last aerobic zone is supplied to beginning of first zone in amount 120-150% of volume of supplied sewage water. Concentration of oxygen in zones with reduced oxygen regime is supported in amount 0.5 mg/l, and in aerobic zones - 4-5 mg/l. Settling of purified water is realised for 1-1.5 hours.
EFFECT: method provides increased stability of purification processes, reduction of energy consumption for air supply, twofold reduction of volume of secondary settling tanks.
1 ex, 1 tbl, 4 cl
The invention relates to the field of purification of household and similar industrial waste water from organic compounds and nitrogen of ammonium salts and can be used for wastewater treatment from detached residential buildings, complexes, townships, and cities in the reconstruction of existing and construction of new sewage treatment facilities.
The closest in technical essence to the proposed invention is a "Method of deep biological treatment of wastewater from the nitrogen of ammonium salts" (patent RU N2185338 with priority from 31.05.2000 ). The method comprises treating the waste water in an alternating zones of low oxygen regimes, and aerobic regime with subsequent sedimentation of biologically treated water and recirculation of activated sludge in the amount of 100% of the volume of incoming wastewater with its distribution in areas with low oxygen content, with 60% of the source water is fed into the first zone with low oxygen regimes, and in the next zone with low oxygen regimes - 40%.
The disadvantages of this method are:
- low stability during volley discharges hardly oxidized wastewater;
- an overabundance of electricity to the flow of air into the aerobic zone (6-7 IHO2/l);
- a great time defending biologist�Cesky purified water - 2.5-3.0 hours.
The technical result of the invention - improving the stability of the system to volleys and other emergencies; reducing energy consumption; reducing the time of sedimentation of biologically treated wastewater up to 1-1,5 hours.
The technical result is achieved in that the first waste water in full handle in areas with low oxygen regimes, and then in the aerobic zones with attached microorganisms, wherein the recycled mixture of wastewater and free activated sludge from the last aerobic zone is served at the beginning of the first zone with low oxygen regimes in the amount of 120-150%) of the total volume of influent wastewater; capacity of the attached microorganisms produce inert material "Irrigation" with a specific area in the first zone with low oxygen regimes 17 m2/m3in the second zone 21 m2/m3and in areas with aerobic mode - 24 m2/m3when the hydraulic load is respectively not higher: 1,38; 0,43; 0.32 m3/m2media treatment of waste water in areas with low oxygen regimes is carried out respectively for 1.4 and 3.4 hours; in areas with aerobic regime of 2.6 and 1.4 hours.
The concentration of oxygen in the aerobic zones regime support in the amount of 4-5 mg/L. Standing for�R produce purified water for 1-1. 5 hours.
The figure shows a diagram of a method of deep biological treatment of wastewater organic compounds and nitrogen of ammonium salts, where:
1 - the zone of low oxygen regime with a specific area of the carrier 17 m2/m3;
2 - the zone of low oxygen regime with a specific surface area of 21 m2/m3;
3 and 4 - zone aerobic mode with a specific area of the carrier 24 m2/m3;
5 is a cesspool.
The purification method is as follows. All initial waste water is fed into the first zone (1) low oxygen regimes, as well as recycle from the last aerobic zone (4) a mixture of biologically treated water with free-floating activated sludge in the amount of 120-150% of the volume of wastewater. The mixed stream is passed in turn through all the zones in ascending-descending or nishadas-upward direction, surrounding the planar inert carrier overgrown with microorganisms on it. The denitrification process in the proposed method is performed without the use of external source of carbon, i.e. organic substances contained in the waste water, i.e. the purified waste water passes through a specific, selective for each zone of attached microorganisms that sequentially oxidize pollution that causes �high quality of wastewater treatment. In areas with low oxygen regimes (1 and 2) support the oxygen concentration of 0.5 mg/l in the aerobic zones (3 and 4) - 4-5 mg/l. the Specific surface planar carrier was in the area (1) is 17 m2/m3in the zone (2) - 21 m2/m3in zones 3 and 4 - 24 m2/m3. The hydraulic load on an inert carrier, respectively: 1,38; 0.43 and 0.32 m3/m2. In the sump (5) carry out the separation of purified water from the activated sludge, which is output from the system for further processing.
Example: the proposed scheme was tested on a pilot plant based on NEIL RMBSS the sanitation Department MGRS. Waste water characteristics on pollution: BOD5=190-250 mg/l, ammonia nitrogen NH4+=20-30 mg/l, phosphorus of PO43-=7-8 mg/l, filed on biological treatment, after the zone (4) has written to the recirculating water in an amount of 120-150% of the total volume of incoming wastewater. The specific surface area of planar media, "Irrigation" was in the zone (1)-17 m2/m3in the zone(2) - 21 m2/m3in zones 3 and 4 - 24 m2/m3. The hydraulic load on an inert carrier, respectively: 1,38; 0.43 and 0.32 m3/m2. The average concentration of attached microorganisms in the zone (1) - 2.7 g/l; in the zone (2) - 1.8 g/l; in zones (3 and 4) - 0.9 g/L. In this case about�Alitalia power, respectively: 1,32; And 0.01 to 0.074 kg BOD51 m3a day. The processing time of the waste water was taken in the zone (1) is 1.4 hours, in the zone (2) 3.4 hours, in the zone (3) - 2.6 hours in the zone (4) is 1.4 hours; time, settling to 1.5 hours.
Already at the exit zone (3) the concentration of contaminants on BOD5did not exceed 3.7 mg/l and ammonia nitrogen salts - 0.3 mg/L. Indicators of purified water (BOD, ammonia nitrogen,-in substances) after clarification in a settling tank were below the MCL for discharging sewage into water bodies of commercial fishing importance.
To determine the stability of wastewater treatment by the proposed method repeatedly off the air for 5-10 hours and were completely drained from the unit water filling its waste water source composition. A day after launching the installation of all the cleaning performance restored.
Thus, when comparing wastewater treatment by the proposed method and the closest in technical essence (EN N2185338) as implemented in the reconstruction of treatment facilities of the city of Kolomna, the following should be noted:
- on the restoration of the wastewater system for the proposed method takes about a day after an emergency, and by a known method at least a week, which testifies to the stability and resilience of the proposed method;
in aerobic �areas proposed method, the demand of oxygen is 4-5 mg/l, and in present - 6-8 mg/l, whereby it is possible to save energy;
- for clarification of biologically treated wastewater by the proposed method requires no more than 1.5 hours due to the fact that it settles in a wastewater biofilm, sorbera on yourself free-floating activated sludge, as in the known method, the time of clarification is 2.5-3.0 hours, i.e. the volume of secondary settling tanks may be reduced almost in 2 times.
The proposed method can be applied in existing aeration tanks-the propellants after a simple renovation, and construction of new treatment facilities.
1. Method of deep biological treatment of wastewater organic compounds and nitrogen of ammonium salts, comprising treating the waste water in an alternating zones of low oxygen regimes, and aerobic regime with subsequent sedimentation of biologically treated water and recirculation of activated sludge, characterized in that the first waste water is treated in two zones with low oxygen regimes, where the capacity of the attached microorganisms to produce planar inert material in its specific surface area in the first zone 17 m2/m3and the second is 21 m2/m3and the hydraulic load is not above 1.38 m3/m2media and second - 0.43 m3/m2medium, and W�in the two aerobic zones in a specific area of inert boot material 24 m 2/m3and hydraulic load of 0.32 m3/m2media in each with attached microorganisms, wherein the recycled mixture of wastewater and free activated sludge from the last aerobic zone is served at the beginning of the first zone with low oxygen regimes in the amount of 120-150% of the volume of incoming wastewater.
2. A method according to claim 1, characterized in that the treatment of the waste water in the first zone with low oxygen regimes is carried out in a period of 1.4 hours, in the second zone 3.4 hours; and in the first aerobic zone to 2.6 hours in the second zone is 1.4 hours.
3. A method according to claim 1, characterized in that the oxygen concentration in the aerobic zone is maintained in the amount of 4-5 mg/L.
4. A method according to claim 1, characterized in that the advancement of the biologically treated water is carried out for 1-1. 5 hours.
FIELD: process engineering.
SUBSTANCE: invention relates to biological treatment of domestic and industrial effluents. Proposed device comprises tank divided by webs and partitions into separate sections and compartments, air feed system lines, effluents distribution and discharge lines and system of silt mixes distribution and biological filter. Said tank is composed of cylindrical outer wall 2 fitted coaxially at bed 1, mid cylindrical wall 3 and settler composed by lower conical part 4, lower cylindrical part 5, upper cylindrical part 6 and upper cylindrical part 7. Space between walls 2 and 3 is separated by different-height webs. Every compartment has separate web with bore at its bottom part. Space between mid wall 3 and settler is divided by vertical different-height webs with cutouts 51 into separate cascade-overflow sections. Settler bottom part has slotted valves and wastes trap 33 arranged at the bottom.
EFFECT: higher quality of cleaning, simplified process.
SUBSTANCE: invention relates to purification of household and industrial sewage water. The method of sewage water purification includes balancing a water flow and biological purification with active sludge. Initial sewage water is supplied through a self-cleaning filter device for straining, and mechanically purified sewage water is discharged into a balance tank and supplied into a tank of biological purification. Separation of purified water and active sludge is carried out by means of submergible membrane cassettes with membrane modules. Separation of permeate is realised by the action of a weak vacuum. Permeate is supplied into a pure water tank and further by a gravity flow to an installation of ultraviolet disinfection. Disinfected water is discharged into a water body. Continuous aeration of the membrane cassettes with membrane modules is realised by means of a group of membrane unit blast blowers. The membrane modules are periodically washed and alternated with relaxation modes. Also realised is the periodic prophylactic cleaning of the membrane cassettes and periodic restoring cleaning.
EFFECT: invention makes it possible to improve the quality of purified water discharges and provide the relaxation of applied devices.
SUBSTANCE: apparatus for purifying waste water comprises hydraulically series-connected settling and balancing tank (C1), an anaerobic unit (C2.1), an anoxic unit (C2.2), an oxide unit (C3), a membrane filter unit (C4) and auxiliary equipment. The settling and balancing tank (C1) comprises a device for receiving starting waste water; an anaerobic unit (C2.1) adapted to feed therein activated return sludge together with waste water from the oxide unit (C3); the oxide unit (C3) is adapted to feed therein return sludge from the membrane unit (C4) is provided with an aerating device (C0); and the membrane filter unit (C4) is provided with an aerating device (C0) and a vacuum device for removing purified water (H2.1) for discharge.
EFFECT: high efficiency of purifying waste water, achieving maximum allowable concentration of contaminants on BOD5, COD, ammonium and nitrate nitrogen, phosphate phosphorus, while ensuring small dimensions, mobility and universality of the apparatus, high reliability of the apparatus in conditions of a non-uniform qualitative and quantitative composition of the starting waste water.
12 cl, 1 dwg, 1 tbl
SUBSTANCE: invention relates to biotechnology. Disclosed are fed methods of producing high-molecular polyhydroxyalkanoates (PHA) in biomass (versions). The method comprises directing biomass into a reactor having at least one stimulating zone with a high average substrate concentration and at least one maintenance zone with a lower average substrate concentration; intermittently and repeatedly feeding an organic carbon-containing substrate into the biomass in the at least one stimulating zone; wherein substrate concentration in the stimulating zone lies between 10 and 1000 mg-COD/l; monitoring the respiration rate of the biomass and determining substrate concentration in the maintenance zone; circulating the biomass back and forth between the stimulating zone and the maintenance zone, so that the respiration rate of the biomass in the maintenance zone does not fall by more than 70% of the extant achievable maximum respiration rate of the biomass. When the biomass accumulates the required level of PHA or when PHA saturation level is achieved, the biomass is collected from the reactor. Another version of the method uses a sludge mixture containing biomass.
EFFECT: methods enable to obtain PHA with average molecular weight of at least 400000 g/mol.
18 cl, 11 dwg
SUBSTANCE: device consists of a vertical sealed housing. In the housing there is a cavity with an anaerobic zone provided with means of gas-dynamic stirring, and a cavity with an aerobic zone provided with gas means of gas-dynamic stirring and aeration, one above the other separated by a horizontal partition. The workspace of the zones is filled with the immobilising and is equipped with pipes for input and output of liquid and discharge of gaseous products with the ability to recycle them. The immobilising cap is made in the form of a combination of hollow vertical rods filled with low-boiling liquid. The outer surface of each of the rods at least in the anaerobic zone is provided with finning.
EFFECT: increasing cleaning efficiency with the possibility of adjusting the degree of removal of contaminants in the anaerobic and aerobic zones depending on the type of liquid, energy security of manufacturing and requirements to depth of cleaning.
SUBSTANCE: group of inventions relates to field of biotechnology. Acidic leaching liquid is obtained by enrichment of leaching aerobic sulphur-acidifying microorganisms by their cultivation in water-containing initial material, which contains polyphosphate-accumulating microorganisms, subjected to action of anaerobic conditions. Processing of solid material which contains heavy metals and phosphates is performed with leaching liquid, with release of heavy metals and phosphates from said solid material and absorption of released phosphates by polyphosphate-accumulating microorganisms. Enriched with phosphorus biomass is separated. Also claimed is microbial composition, obtained by enrichment of leaching aerobic sulphur-oxidising microorganisms in water-containing initial material, containing polyphosphate-accumulating microorganisms, subjected to action of anaerobic conditions. Initial material is cultivated with addition of source of oxidised sulphur in aerobic conditions at temperature from 15 to 37°C until pH value 4.0 or lower is achieved. Obtained phosphorus-enriched biomass is applied as nutrition source for plants.
EFFECT: claimed is method of selective extraction of phosphorus in form of biomass from solid materials, which contain heavy metals and phosphates.
13 cl, 3 dwg, 1 ex
SUBSTANCE: invention can be used for biological purification of ammonium-containing waste water, including at temperature of 7-25°C. The waste water is fed into an aeration tank (3) in which ammonium contained in the waste water is converted at a given oxygen concentration to elementary nitrogen. The formed excess sludge is fed for fermentation (13) which is accompanied by gas release. The sludge is then fed for drying, and the muddy water separated from the sludge, which contains 500-2000 mg/l nitrogen at 25-39°C, is fed into a deammonification reservoir (18), where nitrogen compounds contained in the muddy water are converted to elementary nitrogen. The excess sludge formed in the reservoir (18) is fed into an aeration tank (3), in which oxygen concentration is maintained below 1.0 mg/l. The ammonium contained in the waste water is first converted by anaerobically oxidising bacteria to nitrite. The ammonium and nitrite are then converted to elementary nitrogen by aerobically oxidising bacteria (ANAMMOX), particularly planctomycetes. Before feeding for fermentation, the excess sludge formed during deammonification in the aeration tank (3) is divided into a heavy phase containing anaerobically ammonium oxidising bacteria (ANAMMOX) and a light phase. The sludge heavy phase is fed into the aeration tank (3) and the light phase in form of excess sludge is fed for fermentation (13).
EFFECT: method provides energy-efficient biological purification of cold waste water containing ammonium with low content of organic carbon.
22 cl, 1 dwg
SUBSTANCE: invention relates to the field of recycling of organic substrates having no value as a starting material for making commodity products, especially organic fertilisers. For implementing the method, the starting substrate is subjected sequentially to the anaerobic processing with obtaining biogas, the aerobic processing with obtaining easily precipitating biosludge and the oxygen-containing gas, the separation into fractions with obtaining a liquid and a solid fraction, followed by thermal recycling of the solid fraction to obtain ash content and gaseous products. The biosludge thermal energy is used to control temperature mode of the anaerobic processing after its contact with the gaseous products of thermal recycling. The thermal recycling is carried out in the mode of gasification using oxygen-containing gas and to obtain gaseous products in the form of the generator gas. The temperature mode of the anaerobic processing and humidity of the solid fraction is controlled by the thermal energy of the biosludge liquid fraction. The biosludge liquid fraction is then sequentially subjected to additional anaerobic processing and stripping. The resulting ammonia water is used for preparing organic fertilisers.
EFFECT: method provides increase in energy efficiency of the recycling process, reduction of the cost, and improving the operational performance of the main anaerobic process.
3 cl, 1 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to treatment of industrial effluents. Treatment of effluents containing organic compounds comprises pre-treatment step whereat effluents 11 with organic compounds are fed into oxygen-free tank 1. Compounds 12 containing nitrogen and phosphorus are added thereto to execute anaerobic biological treatment. Treated water is fed into tank 2 for anaerobic biological treatment. At second step, water is fed into tank 3 for anaerobic biological treatment to discharge thus treated water through solid-liquid phase separator as reprocessed water. At third step, reprocessed water is fed to separator 4 of membrane separation by reverse osmosis to divided pre-processed water into water 16 forced through reverse osmosis membrane and concentrated brine 17. At least a portion of concentrated brine 17 is forced back into oxygen-free tank 1.
EFFECT: lower costs.
12 cl, 1 dwg, 1 tbl
SUBSTANCE: device includes subsequently connected to each other downstream of organic substance the first mechanical thickener, aerobic bioreactor, the inlet of which is connected to the residual part of the first mechanical thickener, anaerobic bioreactor and the second mechanical thickener. The device contains mechanical mixer for organic manure preparation. Anaerobic bioreactor is made in the form of anaerobic biofilter, the second mechanical thickener is located between the aerobic and anaerobic bioreactors. Its residual part is connected to the mechanical mixer, and above-residual parts of the first and the second mechanical thickeners are connected to the inlet of anaerobic biofilter. The device contains the first electric power generator actuated by internal-combustion engine equipped with steam-generating utilisation unit, the second electric power generator actuated by steam-piston machine, heat pump plant and heat producing unit. Note that the outlet of anaerobic bioreactor is by liquid flow connected to the main evaporator of the heat pump plant, the outlet by biogas - to the internal-combustion engine, and condenser of the heat pump plant, steam-generating utilisation unit, steam-piston machine and heat producing unit are interconnected via steam-condensing circuit with formation of closed thermo-dynamic cycle.
EFFECT: improvement of initial substrate organic substance processing efficiency together with more complete use of bio-energy potential.
4 cl, 1 dwg
SUBSTANCE: invention relates to the field of hydraulic engineering, namely the preparation of wastewaters in irrigated agriculture for irrigation and fertilising of plants. The biological stabilisation storage pond comprises a closed water intake water reservoir area in the form of a storage pond 1, having a water-supply tube 2 with the fed collector 21, and a water distribution device at the inlet of the discharge pipeline 4. The water distribution device has two concentrically arranged rings, the inner 5 of which is connected to the pipeline of the outlet, and the outer 6 - to the pipeline of inlet and is located in the lower point of the inclined bottom. The inlet opening of the ring 5 is provided with an air pipe 9 with a valve 10, one end of which is mounted at the inlet to the discharge pipeline 4, and the other communicates with the atmosphere. The source of pressurised air and gas emitted from the wastewaters is made in the form of a mixing chamber 11 with the mesh cloth 12 at the upper part, sequentially arranged on the discharge pipeline 4 below its input. The chamber 11 is connected by the tube 13 with the perforated tubes 14 located in the cavity of the inner ring 5. In the side walls of the inner rings 5 there are air-gas slotted openings 16. In order to regulate the conditions of discharge of the wastewaters into the pond and their removal from the side of the grid 8 at filling the pond 1 a shield 19 can be mounted with an inclination towards the bottom of the pond. The shield 19 can be mounted on a horizontal axis of rotation 20 and is connected by the rods with the drive of vertical movement. According to the second embodiment the storage pond comprises successive water reservoirs with inclined bottoms and water distribution devices. The water distribution devices are formed as two concentrically arranged rings, the inner of which is connected with the discharge pipeline and the outer - with the pipeline of feeding of flows, located in the lower point of the inclined bottom. The inner ring is provided with an air pipe with a vent, one end of which is mounted at the inlet to the discharge pipeline, and the other communicates with the atmosphere. In the side walls of the inner ring there are air-gas outlet openings. The water distribution devices are connected on the discharge pipeline with the mixing chambers.
EFFECT: device improves the efficiency of protection of intake of wastewaters from entering floating debris and simultaneous contributes to decontamination when feeding wastewaters for irrigation The design of the device enables to mix the air due to the organisation of the process of air-gas connection and discharging it from the chamber, which is in the gaseous state.
4 cl, 3 dwg
SUBSTANCE: method includes anaerobic fermentation of organic substances in a methane tank with electrical activation of the medium with dc voltage of 0.2-36 V while stirring and bubbling the mass with the released biogas. The organic substances are fed into the methane tank with moisture content of 40-95%. Monitoring is carried out by measuring the value of current in the electrical circuit, calculating conductivity of the system, measuring the volume flow rate of the formed biogas and determining the current content of carbon dioxide gas in the biogas in the upper part of the methane tank. Electrical activation of methanogenesis is controlled by controlling current by setting a new value of current at the level of the sum of the present and calculated maximum current.
EFFECT: high content of methane in biogas, intensification of the process of producing biogas, high process stability and obtaining an end product with accurately defined parameters.
4 dwg, 1 ex
SUBSTANCE: group of inventions can be used in membrane electrolytic production of chlorine and sodium hydroxide for removing silicon from aqueous compositions containing sodium chloride. The method includes adding, to an aqueous composition of sodium chloride containing silicon, an aluminium-containing compound to obtain molar content of aluminium higher than molar content of silicon in said aqueous composition; Monitoring and maintaining pH of the composition at a first level higher than or equal to 8 and lower than or equal to 10 to obtain a first precipitate; Monitoring and maintaining pH of the obtained aqueous composition at a second level higher than or equal to 4 and lower than or equal to 7 to obtain a second precipitate; separating the formed precipitate from the aqueous suspension to obtain a purified aqueous composition. According to the second version of the method, the precipitate is separated at each formation step thereof. A method of producing chlorine and sodium hydroxide includes electrolysis of aqueous sodium chloride solution purified from silicon using the disclosed methods using a membrane cell.
EFFECT: invention reduces content of silicon in the purified solution which contains sodium chloride, with aluminium content in the purified solution lower than 1 mg/l.
14 cl, 4 ex
FIELD: oil and gas industry.
SUBSTANCE: invention can be used during HCs production from natural or associated petroleum gas. Method of oxygenates cleaning from reaction water generated at stage of HCs synthesis from syngas during GTL process includes conversion of even part of the contained oxygenates under conditions of syngas chilling by even part of the reaction water at temperature over 500°C upon contact with catalyst of the oxygenates steam conversion. Further syngas cooling temperature below 400°C is performed by the cleaned water injection in the syngas flow. Method of use of the reaction water generated at stage of HCs synthesis from syngas during GTL process includes its cleaning of the oxygenates under conditions of the syngas chilling at temperature over 500°C upon contact with catalyst of the oxygenates steam conversion, cleaned water degassing. The cleaned degassed water is used to cool the syngas to temperature below 400°C and produce the water steam.
EFFECT: invention ensures effective cleaning of the reaction water of the oxygenates, and use of the produced cleaned water as feed water for boilers and water steam production.
FIELD: process engineering.
SUBSTANCE: invention relates to filter to be incorporated with waster filtering assembly. Water filtering assembly comprises filter of, mainly, a flat profile. Water filtering assembly comprises container for filtered water, intake funnel to be fitted in said container and to intake unfiltered water. This filter can be fitted in intake funnel for filtering of water fed therein. The filter makes the exit from intake funnel for filtered water to get into aforesaid container. The filter makes the intake funnel bottom and as a result water filtering goes over the entire intake funnel bottom. The filter comprises case with water intake and filtered water outlet. Note here that filtering medium is arranged between said intake and said outlet. Water filtering medium includes the ply of ion-exchange resin and ply of material filled with activated carbon. Note that said plies are separated in said case.
EFFECT: higher filtering rate.
22 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: desalination multistage adiabatic plant additionally comprises a thermosoftener (52) which serves for the generation of sludge particles in the feed water heated in a steam heater (26) and taken from a pipeline to supply the feed water to the inlet of a multi-stage adiabatic evaporator (4), as well as a two-section feed water receiver (76) to reduce supersaturation in the sea water being evaporated due to the usage of sludge particles as "seed crystals" in the supersaturated solution volume. The thermosoftener (52) comprises a perforated membrane (56) built-in in the casing (53) under the cover, a dome-shaped horizontal partition (61) installed with a gap in respect to the inner casing wall, vertical cylindrical shells, a manifold to withdraw the vapour (62) under the dome-shaped partition, a branch pipe for water withdrawal is united with the sludge particle removal and is mounted in the casing bottom, and the branch pipe for steam supply is built-in in the casing cover.
EFFECT: lower rate of scale formation on working surfaces of the plant elements.
2 cl, 9 dwg
SUBSTANCE: invention relates to a device and a method of detecting the quality of a liquid, which are used in water treatment devices. The detector "renders" the quality of water in the form of visible radiation instead of converting intensity of UV radiation into digital form and comprises a first detection window coated with a first material for converting first received UV radiation emitted by a UV source and transmitted through the liquid into first visible radiation. The device additionally mixes the first visible radiation with second visible radiation to produce third visible radiation. A different colour of the third visible radiation reflects different quality of water.
EFFECT: invention simplifies the device and method owing to absence of UV sensors in water, which detect UV intensity.
14 cl, 6 dwg
FIELD: process engineering.
SUBSTANCE: invention relates to combined magnetic processing of fluids. Proposed device comprises housing 1 connected via fluid feed and discharge pipes and magnetic unit 6 fitted therein and composed of the set of permanent magnets. Fluid flow channel is arranged between said magnetic unit 6 and housing 1 and composed of spiral with pitch ratio equal to six. The length of magnetic unit 6 is comparable with its diameter. Ferromagnetic washers 7 are fitted between three circular magnets of magnetic unit 6. Electromagnets 4 built around Helmholtz coils 5 with reactive power compensators are arranged at fluid feed and discharge pipes 2 and 3.
EFFECT: efficient magnetisation of fluid flow, ruled out permanent magnet effects.
FIELD: process engineering.
SUBSTANCE: invention relates to water crystal cleaning of harmful admixtures including heavy isotopes of deuterium. Proposed device comprises case 11 to house riser 8 with two chambers 4, 1. The latter make inlets for portable water and heat carrier. Portable water chamber 4 is connected with inside of case 11 that has outlet at its bottom. Heat carrier chamber 1 is connected with inside of ribs 7 arranged in case 11 and combined by outlet. Outer surface of ribs 7 is wavy.
EFFECT: continuous formation of deuterium ice in portable water.
FIELD: process engineering.
SUBSTANCE: invention relates to steam fractions separators. Steam separator comprises vessel for boiling fluid with top section provided with circular horizontal ring with inner groove and hole for condensate. Several identical elements consist of vertical tubes with horizontal rings arranged at their lower part and like rings at upper part provided with grooves with holed for condensate draining. Note here that said elements are fitted one on the other while the last one at upper part is plugged.
EFFECT: higher efficiency.
2 cl, 1 dwg
FIELD: devices for purification of household and industrial sewage.
SUBSTANCE: the invention is dealt with devices for purification of household and industrial sewage and intended for electrical and cavitational treatment of sewage containing a large quantity of organic compounds. The device for purification of sewage consists of a body made out of a dielectric material partitioned by diaphragms for two electrode chambers and one working chamber, that contains a filtering material. The electrode chambers have cavitational field sources installed and the working chamber is supplied with a the bubbler installed in it. The technical result consists in an increase of recuperation of the filtering material at the expense of application of a cavitational field to it, decrease of the microbiological semination, and an increase of cavitational effect on particles.
EFFECT: the invention ensures an increase of the filtering material recuperation, decreased microbiological semination and increased the cavitational effect on particles.