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47results about How to "Low reuse rate" patented technology

Platform system and method for realizing framework configuration based on cloud components in computer software system

The invention relates to a platform system for realizing framework configuration based on cloud components in a computer software system. The platform system comprises a system core functional module, a business-level component module, an aspect oriented module, a data bus module as well as a door and menu module. The invention also relates to a method for realizing framework configuration based on the cloud components in the computer software system by utilizing the platform system. By adopting the platform system and the method for realizing the framework configuration based on the cloud components in the computer software system, the requirement for developing individuation by users at any moment based on the software framework is satisfied, the cost of development and the repeated utilization ratio of software are effectively reduced, the implementing cost of the software is reduced, and the period for releasing the software is obviously shortened. In addition, the system has the advantages of simple and clear structure, quick and convenient use process, stable and reliable working performance and wider application range, and establishes the solid foundation for the further development of component software technology and the further application and dissemination of the cloud computing component technology.
Owner:上海动量软件技术有限公司

Preparation method of super-hydrophobic sponge capable for efficient oil-water separation

The invention relates to a preparation method of a super-hydrophobic sponge for efficient oil-water separation. An organic ligand solution is added into a metal salt solution for reaction, a product is centrifugally separated, and the product is dispersed into a PDMS (Polydimethylsiloxane) diluent to form a dispersed immersion liquid, and the sponge is immersed in the immersion liquid, and the sponge is taken out and dried after complete immersion. A commercially available porous sponge is adopted as a matrix, a zeolite-like imidazole framework (ZIF) polymer which is low in cost, easy to obtain and excellent in performance is selected as a hydrophobic material, a unique adhesive polydimethylsiloxane (PDMS) component is adopted, and a metal organic framework polymer is constructed on the surface of the sponge matrix; and the preparation method of the material is simple and convenient, and the material has the characteristics of low density, low water absorption rate and high repeated utilization rate.
Owner:ANHUI UNIVERSITY

Preparation method and application of silver/zinc oxide composite material

The invention provides a preparation method and application of a silver / zinc oxide composite material, and relates to the technical field of preparation and application of zinc oxide photocatalysts. Zinc acetate, silver nitrate, L-aspartic acid, diethanol amine and deionized water are uniformly mixed and then placed into a reaction kettle for hydrothermal reaction, and the product is washed and dried to obtain the silver / zinc oxide composite material. It is found that the effect of the silver / zinc oxide composite material is much better than that of zinc oxide through photocatalytic experiments of methyl orange and rhodamine B. It is found that rodlike zinc oxide can be assembled into a rule body better, change the distribution of electric charge of the surface of the zinc oxide, and improve photo-induced electron space of the zinc oxide after Ag loading through tests of a scanning electron microscope, an X-ray diffraction spectrogram, an ultraviolet-visible absorption spectrogram andthe like, the comparison with a microstructure of the zinc oxide and the analysis of ZnO and Ag / ZnO from a growth mechanism and a photocatalytic mechanism. In general, Ag loading has a good effect onthe performance improvement of the zinc oxide.
Owner:HEFEI UNIV

Novel main and sub arch single body steel frame greenhouse

The invention discloses a novel main and sub arch single body steel frame greenhouse, which comprises a wall base. The installation of a main arch and a sub arch is more stable and firmer; the main arch achieves the major support effect; the sub arch achieves a minor support effect; a longitudinal pull rod connects the main arch and the sub arch for forming a whole; a wind-proof clamp groove is a fixed film; a manual film winding device has the effect of opening and closing an adopted ventilation opening; an insect prevention net is a net additionally arranged at the ventilation opening; a film is a covering layer and achieves the heat insulation effect; the end parts of the greenhouse are two end parts of the greenhouse body, and the like. The novel main and sub arch single body steel frame greenhouse sufficiently overcomes the defects that a sunlight greenhouse is unfavorable for summer and autumn planting, and the single body greenhouse cannot realize overwintering culture. The greenhouse body adopts a main and sub arch steel structure and adopts double-layer coverage for heat insulation, the lowest temperature in winter reaches 10 DEG C, the greenhouse is suitable for hanging tendril crop planting, the space in the greenhouse is large, the ventilation is good, the crop yield is high, the land utilization rate is high, the repair cost is low, the material reutilization rate is high, the cost is low, and the greenhouse belongs to an ideal plastic greenhouse for facility culture.
Owner:温振海

Method for denitrifying flue gas by using rotary activated carbon denitrator

The invention discloses a method for denitrifying flue gas by using a rotary activated carbon denitrator. The method comprises the following steps: (1) reducing the temperature of flue gas; (2) atomizing hydrogen peroxide; (3) treating activated carbon in a denitration body with soluble alkali liquor; (4) putting the treated activated carbon into a denitrator, and reacting alkali liquor and hydrogen peroxide with NO in the flue gas; (5) discharging the denitrated flue gas out of the denitrator from a flue gas outlet; and (6) replacing the denitration body along with the rotation of the rotaryactivated carbon denitrator, and the like. The method has the advantages that activated carbon is used for denitration, the technical prejudice is overcome, the denitration effect is good, and the operation cost is low.
Owner:SHANDONG NORMAL UNIV

Preparation method of visible-light photocatalyst silver carbonate

The invention provides a preparation method of a photocatalyst silver carbonate which has photocatalytic activity under visible light. The invention relates to the field of photocatalysis. According to the invention, soluble silver salt and carbonate are adopted as reactants; a reaction is carried out with an ion exchange coprecipitation method or a hydrothermal method, such that silver carbonate precipitate is obtained; and through filtering, washing and drying, the silver carbonate photocatalyst is obtained. No sacrificial agent is doped during the preparation process. The preparation process is simple. The product Ag2CO3 has high photocatalytic efficiency and good catalyst stability. The product is suitable for wide applications in production practices.
Owner:SICHUAN UNIV

Preparation method and application of Nd-MOFs gas adsorption material

The invention discloses a preparation method of an Nd-MOFs gas adsorption material. The preparation method comprises ligand AGE synthesis and material synthesis, and comprises the following specific steps: adding a ligand solution and a neodymium chloride solution into a conical bottle respectively, mixing uniformly, adding N,N-diisopropylethylamine (DIEA) dropwise under a magnetic stirring condition to regulate the pH of the solution to 7 to 8, and stirring for reacting at a room temperature; then performing suction filtration with a vacuum pump, washing the obtained solid with acetone for 2to 5 times, and washing with distilled water for 2 to 4 times; then placing the solid into a drying oven for drying until constant weight to obtain the Nd-MOFs gas adsorption material. The Nd-MOFs gasadsorption material prepared by the method solves the problems of change of multiple factors, degradation in the montmorillonite adsorption performance and the like due to easy desorption of activated carbon under a high temperature environment, incapability of applying a zeolite molecular sieve to adsorption under strong inorganic acid and strong alkali conditions, and the need of strictly controlling the pH value of the solution in the process of chemical modification on the surface of montmorillonite, and has an excellent adsorption effect.
Owner:INNER MONGOLIA AGRICULTURAL UNIVERSITY

Monocrystalline silicon solar cell piece surface texture liquid containing soybean oligosaccharide, and preparation method therefor

The invention discloses a monocrystalline silicon solar cell piece surface texture liquid containing soybean oligosaccharide. The monocrystalline silicon solar cell piece surface texture liquid is prepared from the following raw materials in parts by weight: 0.1-0.2 parts of soybean oligosaccharide, 1.5-2.5 parts of styrene, 1-2 parts of 5-10% of ammonium persulfate solution, 0.1-0.2 parts of lauryl sodium sulfate, 0.1-0.15 parts of dodecafluoroheptyl-propyl-trimethoxysilane, 0.1-0.15% of nonylphenol polyoxyethylene ether, 3-5 parts of sodium hydroxide, 0.3-0.5 parts of citric acid, 0.05-0.1 parts of emulsified silicone oil, 0.1-0.15 parts of salicylic acid and 100-120 parts of water. The silicon wafer texture liquid provided by the invention has relatively high reaction speed, moderate corrosion, low thinning amount and high repeating utilization factor; the prepared textured pyramid has a uniform size and relatively small granules; in addition, the product quality is high in stability; the product is high in uniformities among different batches; and the rate of finished products is high.
Owner:CHINALAND SOLAR ENERGY

Construction technology for light building blocks and partition panels

The invention relates to a construction technology of light building blocks and partition plate that belongs to construction technology of constructional materials. The processing is that: leveling off the ground, wall surface and ceiling by concrete slurry two days before using; cleaning up; laying line; forming clay by stick gesso and water, splicing the building blocks or wall plate, knocking every spliced block or wall plate to extrude the redundantly clay, and smearing; installing water, electric, and warming device in the meanwhile; checking the flatness and plumb degree after the whole wall being spliced by leaning rule, if the error is over 3mm in the range of 2m, rubdown to less than 3mm by sharpening machine; sticking glass fiber net cloth by gesso clay. The invention fully solves the problem the technology problem caused during splicing and rendering process of light building blocks and partition plate.
Owner:刘健

Aluminum silicon carbide high-power LED radiator and preparation method thereof

The invention provides an aluminum silicon carbide high-power LED radiator and a preparation method thereof. The preparation method comprises the following steps: proportioning, ball-milling and mixing, granulating, and pretreating raw materials to obtain granulated powder; forming the granulated powder into a silicon carbide ceramic prefabricated part through a cold isostatic pressing technology; sintering the formed silicon carbide prefabricated part; smelting a ZL101A aluminum alloy to obtain an aluminum alloy melt; putting the silicon carbide ceramic prefabricated part into a steel mold through a vacuum pressure infiltration method, pressing molten aluminum alloy into pores of the silicon carbide ceramic prefabricated part by adopting high-pressure inert gas at a certain temperature in a vacuum environment, and carrying out heat treatment to prepare an aluminum silicon carbide casting; and carrying out surface metallization plating process treatment on an aluminum silicon carbide finished product to form the aluminum silicon carbide high-power LED radiator. The method overcomes the defects of complex process, expensive equipment, long production period and high energy consumption, has the advantages of compact products, excellent performance, simple operation and low cost, and is wide in application range.
Owner:珠海亿特立新材料有限公司

Territorial space planning evaluation system

InactiveCN111507648ALow reuse rateSolve technical problems with poor reusabilityCharacter and pattern recognitionResourcesEngineeringNetwork model
The invention provides a territorial space planning evaluation system, which relates to the technical field of territorial space planning and deep learning. The territorial space planning evaluation system comprises a plurality of subsystems, wherein each subsystem comprises a data processing module, a training module and an evaluation module; each data processing module is used for acquiring historical evaluation index data and a preset evaluation index set of the to-be-evaluated region, and constructing a training set based on the historical evaluation index data and the preset evaluation index set; each training module is used for sending the corresponding training set to a neural network model, so that the neural network model is trained by using the training set to obtain a target neural network model; and each evaluation module is used for inputting the current evaluation index data of the to-be-evaluated region into the target neural network model to obtain the evaluation gradeof the current evaluation index data. Therefore, the technical problem that an existing territorial space planning evaluation system is poor in reusability is solved.
Owner:BEIJING AEROSPACE HONGTU INFORMATION TECH

Behenyl alcohol - sodium lignin sulfonate surface texture liquid of monocrystalline silicon solar cell and preparation method thereof

The invention discloses a behenyl alcohol - sodium lignin sulfonate surface texture liquid of a monocrystalline silicon solar cell. The behenyl alcohol - sodium lignin sulfonate surface texture liquid is prepared from the following raw materials in parts by weight: 0.1 to 0.15 part of behenyl alcohol, 0.1 to 0.15 part of sodium lignin sulfonate, 1.5 to 2.5 parts of styrene, 1 to 2 parts of 5-10% ammonium persulfate solution, 0.1 to 0.2 part of lauryl sodium sulfate, 0.1 to 0.15 part of dodecafluoroheptyl-propyl-trimethoxysilane, 0.1 to 0.2 part of triethanolamine, 3 to 5 parts of sodium hydroxide, 0.3 to 0.5 part of citric acid, 0.05 to 0.1 part of phosphoricacidethylhexylester, and 100 to 120 parts of water. The behenyl alcohol - sodium lignin sulfonate surface texture liquid has the advantages that the reaction speed is higher, the corrosion is moderate, the thinning amount is little, the repeated utilization rate is high, the prepared suede pyramid has uniform size, the particle size is small, the reaction controllability is good, and the surface quality of a silicon chip is high.
Owner:CHINALAND SOLAR ENERGY

Novel hard-soft package installing metal hanging part

The invention discloses a novel hard-soft package installing metal hanging part which comprises a clamp-shaped member (1), a leveling wood strip (2) and a member accessory (3). The leveling wood strip (2) is fixed on the wall face, and the bottom face of the clamp-shaped member (1) is fixed on the leveling wood strip (2). The member accessory (3) is connected with a hard-soft package board and inserted into a clamping mouth of the clamp-shaped member (1). The side of the member (1) is triangular. By adopting the novel hard-soft package installing metal hanging part, the increasingly tense labor cost can be reduced, a construction period can be shortened, and product limitation on the environment of a traditional construction can be changed. The repeated utilization rate of products is improved, accordingly the construction and installation efficiency is improved, and productized construction progress is promoted. The construction pollution is reduced, the construction quality is improved, and future maintenance is facilitated.
Owner:GOLD MANTIS CONSTR DECORATION

Resume sharing method and related equipment

The embodiment of the invention discloses a resume sharing method and related equipment. The resume sharing method comprises the following steps: receiving resume information; performing feature extraction on the resume information to obtain features of the resume information, and uploading the features to a preset database to obtain a plurality of consulting requests; determining a plurality of candidates corresponding to the plurality of consulting requests, and matching the plurality of candidates according to the features to determine a target candidate; and approving a consulting requestcorresponding to the target candidate, and sending the resume information to a target server corresponding to the target candidate. By implementing the embodiment of the invention, the talent resourcereutilization rate is improved, and the resume sharing process is simplified.
Owner:LAUNCH TECH CO LTD

Method and device for constructing combining position of floor and toilet or balcony

The invention relates to a method and device for constructing the combining position of a floor and a toilet or a balcony, and belongs to the technical field of building construction. The method includes the steps that steel reinforcement frameworks are bound, and split heads and reinforced strut members are arranged on the steel reinforcement frameworks to conduct reinforcement; an assembly formwork support for partition is placed; concrete placement formworks are installed, and the site is cordoned off; concrete is poured, maintenance is carried out, and then formwork disassembling is carried out. By means of the method and device, the quality of the combining position of the floor and the toilet or the balcony is good, the construction quality pass percent is higher than 98.8%, and the maintaining probability and the maintaining cost are greatly reduced. By means of the method for controlling the height difference of the balcony and the toilet, water overflowing of the toilet and the balcony is overcome, a foundation is laid for decoration and fitment in the later period, the method and device are well welcomed by owners, supervisors and quality supervision stations, and social reputations of enterprises are won. By means of the method and device, later-period maintaining and repairing of concrete structures of the balcony and the toilet are avoided, the labor cost and the material cost are reduced, and the chiseling cost for later-period decoration and later-period water and electricity installation is saved.
Owner:ZHEJIANG HONGCHAO CONSTR GRP CO LTD

Humidity and stress double-parameter micro-optical fiber sensor based on carbon nanotube compound

The invention discloses a humidity and stress double-parameter micro-optical fiber sensor based on a carbon nanotube compound. The humidity and stress double-parameter micro-optical fiber sensor comprises a super-continuous broadband light source, a single-mode optical fiber, a micro-optical fiber coupler, the carbon nanotube-polydimethylsiloxane (CNT-PDMS) compound and a spectrometer. The super-continuous broadband light source is connected with a first section of single-mode optical fiber, the other end of the first section of single-mode optical fiber is welded with one end 13 of the micro-optical fiber coupler, the other end 15 of the micro-optical fiber coupler is welded with a second section of single-mode optical fiber, and the other end of the second section of single-mode opticalfiber is connected with the spectrometer. Humidity sensitivity and elasticity characteristics of the CNT-PDMS compound are combined with a strong evanescent field and an elasto-optic effect of the micro-optical fiber coupler, so that humidity and stress are accurately measured at the same time. The sensor has the advantages of high sensitivity, high response speed, interference resistance, high reutilization rate and the like. The novel technology can be applied to detection of humidity and pressure of the surrounding environment of a precise electronic device.
Owner:TIANJIN UNIVERSITY OF TECHNOLOGY

Method for repairing pyramidal shaft of cold rolling coiler mandrel

The invention discloses a method for repairing a pyramidal shaft of a cold rolling coiler mandrel. The method includes the following steps that the pyramidal shaft is detected on a platform, and repairable parts are selected out; parts to be repaired are detected, and bead weld thicknesses of copper layers of oblique platform surfaces are determined; machining thicknesses of the copper layers are determined according to detection results and all the oblique platform surfaces are machined on a machine tool according to the determined machining thicknesses of the copper layers; bead welding is carried out on the oblique platform surfaces according to the determined bead weld thicknesses of the copper layers; overall aging heat treatment is conducted on the pyramidal shaft; the heating speed ranges from 150 DEG C / h to 450 EDG C or so, heat preservation is conducted for four hours, and the pyramidal shaft is then cooled to be at about 200 DEG C along with a furnace and discharged out of the furnace; deformation detection and correction are carried out on the pyramidal shaft; the oblique platform surfaces of the pyramidal shaft are machined according to design dimensions; sector plates are used for match lapping of the oblique platform surfaces of the pyramidal shaft and are marked with pairing marks; the pyramidal shaft is coped, cleared, oiled and packaged for standby application. The cold rolling coiler mandrel is repaired by adopting the method, performance of the pyramidal shaft of the mandrel can be recovered to the maximum extent through an optimized process route, a reasonable heat treatment system and a precise detection and correction technology, and running cost of equipment can be effectively reduced.
Owner:武汉钢铁有限公司

Method for removing COD (Chemical Oxygen Demand) and recycling high-ammonia-nitrogen high-salt organic wastewater

The invention provides a method for removing COD (Chemical Oxygen Demand) from high-ammonia-nitrogen high-salt organic wastewater, which comprises the following steps: (1) adding alkali into high-ammonia-nitrogen wastewater for deamination to obtain deaminated liquid; (2) standing the deaminated liquid to separate out sodium sulfate crystal salt, and performing solid-liquid separation to obtain crystallized liquid; (3) adjusting the pH value of the crystallized liquid, and aerating; (4) performing electrocatalytic oxidation on the solution obtained in the step (3); (5) further performing Fenton reaction on the solution obtained in the step (4); (6) adding alkali liquor to adjust the solution obtained in the step (5) to be alkaline; and (7) adding a flocculating agent into the solution obtained in the step (6), and carrying out solid-liquid separation to obtain a COD-removed solution. According to the method, COD in the high-ammonia-nitrogen high-salt organic wastewater can be efficiently removed, meanwhile, ammonium salt and sodium sulfate can be recycled, the treatment cost is low, the slag amount is small, and the treatment steps are simple and convenient.
Owner:CHANGSHA SCI ENVIRONMENTAL TECH

Acidic copper chloride etching solution copper recovery regeneration system and recovery regeneration method

The invention provides a copper recovery and regeneration system for an acidic copper(II) chloride etchant and a recovery and regeneration method, and relates to the technical field of cyclic regeneration of etchants. The copper recovery and regeneration system for the acidic copper(II) chloride etchant comprises an etchant regeneration system, a waste gas treatment system located in a downstreamposition of the etchant regeneration system as well as a liquid iron cleaning solution treatment system. With the adoption of the copper recovery and regeneration method for the acidic copper(II) chloride etchant, the problems that the conventional recovery and regeneration for the acidic copper(II) chloride etchant is high in energy consumption and low in reuse rate and contains many cathode copper impurities, and secondary pollution to the environment is caused by chlorine are solved effectively, and technical support is provided for comprehensive application of an electrolytic regenerationcycle technique for the acidic copper(II) chloride etchant.
Owner:安徽绿洲危险废物综合利用有限公司

Method for selectively preparing 5-hydroxymethylfurfural by catalyzing carbohydrates in water-ionic liquid mixed system

The invention discloses a method for selectively preparing 5-hydroxymethylfurfural by catalyzing carbohydrates in a water-ionic liquid mixed system, a small amount of ionic liquid is added into a water-phase reaction solvent as an additive, so that the selectivity of the 5-hydroxymethylfurfural can be effectively improved, the generation of by-products and humin is reduced, meanwhile, the production cost can be reduced, and green and efficient conversion of biomass-based carbohydrates is realized.
Owner:GUANGZHOU INST OF ENERGY CONVERSION - CHINESE ACAD OF SCI

Single crystalline silicon solar cell piece surface texture solution containing pomegranate bark extract and preparation method thereof

The invention discloses a single crystalline silicon solar cell piece surface texture solution containing a pomegranate bark extract. The single crystalline silicon solar cell piece surface texture solution is prepared from, by weight, 0.1-0.2 part of xylitol, 1.5-2.5 parts of styrene, 1-2 parts of a 5-10% ammonium persulfate solution, 3-5 parts of pomegranate bark powder, 0.1-0.15 part of cocoanut fatty acid diethanolamide, 0.1-0.2 part of sodium lauryl sulfate, 0.1-0.15 part of dodecafluoroheptyl-propyl-trimethoxysilane, 3-5 parts of sodium hydroxide, 0.3-0.5 part of citric acid, 0.05-0.1 part of tea polyphenol and 100-120 parts of water. The silicon slice texture solution is high in reaction speed, moderate in corrosion, small in thickness reduction and high in repeated utilization factor, the obtained texture pyramid is uniform in size, granules are small, the repeatability is good, and the single crystalline silicon solar cell piece surface texture solution is good in technological processing quality stability, high repeatability, low in cost and environmentally friendly.
Owner:CHINALAND SOLAR ENERGY

Extrusion panels and blocks utilizing bottom ash fly ash and polymer modifiers

The present invention relates to an extrusion-molded panel and a block utilizing bottom ash, fly ash, and a polymer modifier, wherein: an extrusion-molded panel and block for building materials are manufactured by mixing, as main composition components, bottom ash and fly ash, which are coal ash, with a small amount of cement, natural pulp, polypropylene synthetic fibers, a thickener, and a polymer modifier, at a predetermined composition ratio, so that a minimal amount of cement is used in mixing, and therefore, the manufacturing cost can be reduced; the amount of carbon dioxide exhaust generated during cement production can be reduced by an amount corresponding to the reduction in the amount of cement, thereby reducing the emission of greenhouse gas; and, especially, the resource recycling range of the bottom ash, which has been recycled at low rates and discarded as environmental waste, can be extended.
Owner:金玟九

A kind of preparation method and application of ion-selective cellulose-based adsorbent

The invention discloses a preparing method and application of an ion selectivity cellulose-based adsorbent, and belongs to the field of light chemical engineering. According to the preparing method, cellulose is firstly introduced to carboxyl, and then carboxyl is connected to secondary amine in pyridone derivatives so as to prepare the modified cellulose adsorbent. The prepared modified cellulose adsorbent has low cost, a high adsorption capacity and stable adsorbability. Adsorbed heavy metal ions and dyestuff can be reutilized, thus the modified cellulose adsorbent has the huge advantages of energy conservation and emission reduction and environmental friendliness.
Owner:盐城德安德新材料科技有限公司

Synthesis method of metal deuterium storage material AlD3 powder

InactiveCN102826510BLow reuse rateEasy to turn crystalHydrogen isotopesHigh energySynthesis methods
The invention relates to a synthesis method of metal deuterium storage material AlD3 powder, and in particular relates to a synthesis method of AlD3, aiming at solving the technical problems that the existing synthesis method of AlH3 is strict for test operation requirements, the synthesized AlH3 is low in hydrogen storage content, and similar metal deuterium compounds are low in deuterium storage content and energy supply. The synthesis method comprises the following steps of: under the anhydrous condition, mixing AlCl3 with absolute ether solution of LiAlD4; then, adding a crystallization additive LiBH4 into the mixed solution; and drying under the vacuum condition to obtain the product AlD3. The synthesis method is simple in operation method; and the synthesized AlD3 powder is single in crystal form, high in deuterium storage content (about 15-20%) and more in energy supply, thus being an ideal metal deuterium storage material of high-energy solid propellants, solid-liquid hybrid propellants, composite propellants and the like, and being applied to fields of rocket propellants and scientific research.
Owner:HARBIN INST OF TECH

High-salt, high-ammonia-nitrogen and high-hardness wastewater treatment system

The invention discloses a high-salt, high-ammonia-nitrogen and high-hardness wastewater treatment system. The system comprises a wastewater buffer pool, a collection pool, a flocculation sedimentation pool, an ammonia distillation device, an ammonium sulfate production device, a clean water pool and a deep treatment mechanism; the water outlet of the wastewater buffer pool is communicated with the water inlet of the collection pool, the water outlet of the collection pool is communicated with the water inlet of the flocculation sedimentation pool, the clear water outlet of the flocculation sedimentation pool is communicated with the water inlet of the ammonia distillation device, the gas outlet of the ammonia distillation device is communicated with the gas inlet of the ammonium sulfate production device, and the water outlet of the ammonia distillation device is communicated with the water inlet of the clear water pool; the water outlet of the clean water tank is communicated with the water inlet of the advanced treatment mechanism; and the clean water pool is provided with an acid liquor conveying port and an alkali liquor conveying port. The problems that in the prior art, a high-salt, high-ammonia-nitrogen and high-hardness wastewater treatment method is large in treatment energy consumption, precipitates are prone to blockage, and the water recycling rate is low are solved. The system is simple in structure, low in treatment energy consumption, easy to maintain, reasonable in structural design and capable of meeting the requirement for wastewater treatment.
Owner:西安高芯净化设备有限公司

PVA wastewater treatment system and treatment method

The invention discloses a PVA wastewater treatment system and treatment method, and relates to the technical field of wastewater treatment. A PVA wastewater containing raw water tank is connected with a fiber bundle filter, an outlet of the fiber bundle filter is connected with a heat exchange system, the heat exchange system is connected with an ultrafiltration system, and the ultrafiltration system is connected with a fresh water circulation tank; the fresh water circulating tank is connected with a reverse osmosis system, and a booster pump, a security filter and a high-pressure pump are sequentially arranged between the fresh water circulating tank and the reverse osmosis system; a water inlet of the electrodialysis system is connected with the fresh water circulating tank and is used for carrying out salt separation treatment and concentration treatment on wastewater in the fresh water circulating tank; one end of the concentrated water circulation tank is connected with the electrodialysis system, and the other end is connected with the concentrated brine tank which is connected with a freezing crystallization system. According to the invention, the problems of low fresh water recycling rate, low concentrated water concentration multiple, resource waste, high treatment cost, unstable system operation and the like in PVA washing wastewater treatment are effectively solved.
Owner:SUZHOU SUJING ENVIRONMENTAL ENG
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