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7695results about How to "Improve removal efficiency" patented technology
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Space optimized coalescer
ActiveUS20070062887A1Improve removal efficiencyLower overall pressure dropDispersed particle filtrationLiquid suspension thickening by filtrationEngineeringTrade offs
A coalescer is provided minimizing trade-offs among high removal efficiency, low pressure drop, long service life, and small size.
Owner:CUMMINS FILTRATION IP INC
Electrostatic filter cartridge for a tower air cleaner
InactiveUS20080314250A1Improve removal efficiencyImprove drainage capacityHuman health protectionMagnetic separationParticulatesTower
The disclosed electrostatic precipitator cartridge for a tower air cleaner in accord with the present invention is low-cost, because constructed of injected molded plastics material and stamped and extruded metal components. It is easy to clean, not only because it's constitutive metal parts and plastic components are machine washable but also because the cartridge as a whole is machine washable, the pieces and components are designed and arranged to prevent intracartridge fluid buildup or retention after washing, thereby eliminating any electrical shorting or arcing or other undesirable phenomena resulting therefrom that could interfere with the operation of the electrostatic filter cartridge. It is mechanically stable and has high particulate collection efficiency because it's ionizer bars have a predetermined preferably air foil shape that provides improved ionization efficiency and that imparts improved torsion stability rendering it possible to provide taller electrostatic filter cartridges and / or greater cleaning power.
Owner:LASKO OPERATION HLDG LLC
Flue gas purification process using a sorbent polymer composite material
ActiveUS20050019240A1Easy to fixImprove removal efficiencyGas treatmentNitrogen compoundsSorbentFluoropolymer
This invention provides a process of removing sulfur oxides, mercury vapor, and fine particulate matters from industrial flue gases that contain such pollutants. The pollutants are removed by modules, which contain microporous adsorbent (i.e., sorbent) material that is held within a polymer matrix. The preferred polymers are fluoropolymers. The composite material that contains the microporous absorbent material held within a polymer matrix removes sulfur oxides by converting them into high concentration sulfuric acids. It also removes mercury vapor by chemically adsorbing the mercury into the matrix. It also removes fine particulate matters by surface filtration. The sulfuric acid that is produced inside the composite material is automatically expelled onto the external surfaces of the composite material and is drained into an acid reservoir together with the fine particulate matters which are washed from the external surfaces of the composite material by the constant dripping of the sulfuric acid along the external surfaces of the composite material.
Owner:WL GORE & ASSOC INC
Humid air turbine cycle with carbon dioxide recovery
InactiveUS7637093B2Improve removal efficiencyGas turbine plantsEngine controlCombustorProcess engineering
Owner:FLUOR TECH CORP
Method for preparing magnetic filling with biological affinity, hydrophilicity and activity for water treatment
InactiveCN1522972AEasy to grow and compactGood compatibilitySustainable biological treatmentBiological water/sewage treatmentInjection molding machineInjection moulding
The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.
Owner:SOUTH CHINA UNIV OF TECH
Onsite chemistry air filtration system
ActiveUS20070041882A1Reducing airborne bio-matterLower capability requirementsCombination devicesAuxillary pretreatmentAir filtrationGas phase
An onsite chemistry air filtration system to remove gaseous contaminants from air is disclosed. The onsite chemistry air filtration system of the present invention comprises: a conventional particulate filtration section, a photochemical filtration section, a static gas phase filtration section and a catalytic filtration section. The conventional particulate filtration section captures solids and condensables. In the photochemical filtration section, UV lamps generate bio-destruction and surface photochemical activity on a semiconductor catalyst material, provide a radiation source to irradiate airborne contaminant molecules and to energize their states to promote reactions and generate airborne ozone and radicals. In the static gas phase filtration section, gas phase filtration media is used to capture contaminants, concentrate them in a relatively confined space and allow airborne generated chemistries to concentrate and react in-situ, thereby creating a regeneration effect on the media. In the catalytic filtration section, catalytic media scavenges and converts airborne radicals and ozone to harmless by-products.
Owner:ROSEBERRY JEFFREY L
Liquid-phase oxidation-absorption two-stage wet method flue-gas denitration technique
ActiveCN101385942ALow investment costLow running costDispersed particle separationPartial oxidationGas phase
The invention discloses a wet method smoke gas denitration technology of two segments of liquid phase oxidation and absorption, which adopts solution or mixtures of one or more of potassium permanganate, sodium chlorite, sodium hypochlorite, calcium hypochlorite, oxyful and chlorine dioxide as oxidizing agents to ensure nitrogen oxide in smoke gas contact and react with the oxidizing agents. After the nitrogen oxide is partially oxidized into nitrogen dioxide, oxidized nitrogen oxide in the smoke gas is absorbed by alkali liquid to generate corresponding nitrite. The technology adopts liquid phase oxidation to replace gas phase oxidation so as to reduce the investment and the running cost, simplify the technical process and the system structure, and enhance the operability. Compared with a method that oxidation and absorption are simultaneously carried out in the liquid phase, the two-segment technology not only can increase the removal efficiency, avoid secondary pollution caused by incomplete absorption of NO2, but also can achieve the purposes of selectively generating and recovering the nitrite in the absorption stage by controlling the oxidation degree of the oxidation stage.
Owner:ZHEJIANG TIANLAN ENVIRONMENTAL PROTECTION TECH
Device and method for increasing grain size of PM2.5 (particulate matter2.5) through turbulent flow and chemical agglomeration coupling
ActiveCN104801420AFacilitate collision contactImprove the growth effectElectrostatic separationParticulatesEvaporation
The invention discloses a device and a method for increasing grain size of PM2.5 through turbulent flow and chemical agglomeration coupling. Dust-containing flue gas sequentially flows through a chemical agglomeration area and a turbulent flow generation area in a flue and finally enters an electrostatic dust collector; when the dust-containing flue gas flows through the chemical agglomeration area, the PM2.5 particles in the flue gas are primarily contacted with agglomeration solution fogdrops sprayed in through a dual-fluid atomizing nozzle, agglomeration solution liquid drops are evaporated, in the evaporation process, the PM2.5 particles are connected through macromolecule chains with polar groups, and the grain size of the PM2.5 is increased; the flue gas flows through the turbulent flow area, the agglomeration solution fogdrops are promoted to collide and contact the PM2.5, the PM2.5 are promoted to collide and contact the crude dust under the turbulent flow disturbance generated by a turbulence bar, the PM2.5 are further aggregated and increased in size, meanwhile, the residence time of the agglomeration solution liquid drops in the flue is prolonged, before entering the electrostatic dust collector, the agglomeration solution liquid drops are completely evaporated, and the particles of which the size is increased through agglomeration are finally moved by the electrostatic dust collector. The agglomeration increasing effect of the PM2.5 is obviously enhanced, and the using amount of an agglomeration solution is reduced.
Owner:SOUTHEAST UNIV
Desulfurization and denitrification agent, preparation method and application thereof
ActiveCN102824844ALarge specific surface areaEnhanced adsorption functionOther chemical processesDispersed particle separationChemistryFlue-gas desulfurization
The invention discloses a desulfurization and denitrification agent, a preparation method and application thereof. The desulfurization and denitrification agent is a nanometer material and comprises the following components: MgO, SiO2, CaO, Fe2O3, Al2O3, CuO and MnO2. Preferentially, the desulfurization and denitrification agent also comprises a strong oxidant KMnO4. By using the nanometer desulfurization and denitrification agent disclosed by the invention, NOX can be synchronously removed during a flue gas desulfurization process, and the desulfurization and denitrification efficiency is high.
Owner:ZHONGJING ENVIRONMENTAL TECH CO LTD
Method for treating radioactive wastewater
ActiveCN103177784AImprove processing precisionReduce competitionGeneral water supply conservationRadioactive contaminantsStrong acidsIon exchange
Owner:BEIJING QINGHE CHAOHUA TECH CO LTD
Flue-gas cleaning method and system for waste incineration
InactiveCN101829468AImprove removal efficiencyLarge load concentrationCombination devicesLighting and heating apparatusCooling towerHazardous substance
The invention discloses a flue-gas cleaning method for waste incineration, which comprises a dry process and a wet process. In the dry process, harmful substance in the flue gas is adsorbed by utilizing an adsorbent, and acid gas is neutralized by utilizing an alkaline absorbent, and in the wet process, a wet spray scrubber is utilized to purify the flu gas with higher efficiency. In addition, the invention also discloses a flue-gas cleaning system for waste incineration, which comprises a cooling tower, a bag-type dust collector, a wet washing tower and a glue-gas reheater. Flue gas from an exhaust-heat boiler enters the bag-type dust collector after being cooled by the cooling tower. Activated carbon and slaked lime powder are sprayed into the flue gas before the flue gas enters the bag-type dust collector to carry out preliminary purification on the flue gas; the purified flue gas is introduced to the wet washing tower through a draught fan for further processing; and the purified flue gas is discharged into the atomosphere by a chimney after the two-stage heating. The invention can effectively remove pollutant in flue gas and the quality of the purified flue gas can achieve the EU 2000 effluent standard.
Owner:山东三融环保工程有限公司
Liquid phase flue gas desulfurizing and denitrifying purification method and apparatus
InactiveCN1843574AImprove removal efficiencyLow investment and operating costsDispersed particle separationAir quality improvementCalcium hypochloriteCalcium hydroxide
The invention relates to a liquid-phase smoke desulfuration denitration purifying method and relative device, belonging to the smoke purifying technique. It can effectively remove sulfur dioxide and nitrogen oxide of smoke. It utilizes ejection bubbling method to adsorb the sulfur dioxide and nitrogen oxide of smoke, while the adsorption solution is the sodium chlorite solution in 0.001MOL / L-0.100MOL / or the additive in 0.001MOL / L-0.005MOL / L, and the pH valve of adsorption solution is 3-11; the additive is one or the combination of calcium hypochlorite, baking soda, hydrogen dioxide solution, acid sodium phosphate, or calcium hydrate. The removing efficiency of sulfur dioxide in said invention is above 99%; the removing efficiency of nitrogen oxide is above 90%; and the utilization of adsorption solution is above 97%. Therefore, said invention has the advantages that high removing efficiency, lower cost, simple device, high utilization of adsorption solution and wider application for large, middle, and small boiler, etc.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)
Electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil
InactiveCN102513348APromote migrationImprove removal efficiencyContaminated soil reclamationHypochloritePersulfate
The invention provides an electric complex-strengthening repairing method and device of heavy metal-organic co-contaminated soil. The method provided by the invention comprises the following steps of: filling contaminated soil into an electric repairing device, and then adding an oxidant into a cathode electrolyte and an anode electrolyte or directly spraying the oxidant on the contaminated soil, wherein the oxidant comprises hydrogen peroxide, pypocholoride and persulfate; applying a direct-current electric field on a cathode and an anode, wherein the strength of the electric field is 0.5-2 V / cm; and controlling the pH values of the cathode electrolyte and the anode electrolyte to be 3-11. By selecting the suitable for oxidant and controlling the pH value of the electrolyte, the migration of the heavy metal can be effectively increased and the removing efficiency is improved; and meanwhile, the oxidant is used for effectively degrading organic pollutants when the pollutants are migrated, thereby relieving the post-treatment and simultaneously removing the heavy metal and the organic pollutants.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI
Method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in evaporation manner and device of method
InactiveCN102380278ALow running costConvenient sourceCombination devicesWater/sewage treatmentAir preheaterFlue gas
The invention discloses a method for cooperatively promoting agglomeration growth of PM (particulate matter) 2.5 and treating desulfuration wastewater in an evaporation manner and a device of the method. The method particularly includes steps that agglomeration liquor prepared by desulfuration wastewater, high polymer adhesive and wetting agent is sprayed into an inlet flue of an electric precipitator and is evaporated by the aid of heat of flue gas, in an evaporation process, the wetting agent promotes dust to enter drops of the agglomeration liquor, the high polymer adhesive is connected with PM2.5 via a polymer chain with polar groups, the grain diameter of the PM2.5 is prompted to be enlarged, so that the PM2.5 can be gathered by the follow-up electric precipitator, the desulfuration wastewater is evaporated completely, suspended matters and dissolvable pollutants in the wastewater are converted into solid to be dissolved out, and the suspended matters and the dissolvable pollutants in the wastewater, together with dust in the flue gas, are gathered by the electric precipitator. The device consists of a boiler, an air preheater, the electric precipitator, a desulfurizing tower, a hydraulic cyclone, a desulfuration wastewater clarification tank and an agglomeration liquor preparation tank, and a double-fluid atomizing nozzle is arranged in the flue between the air preheater and the electric precipitator.
Owner:SOUTHEAST UNIV
Catalytic module capable of removing formaldehyde at room temperature and preparation method thereof
ActiveCN105289298AImprove catalytic activity and purification efficiencyExcellent low temperature activity and removal efficiencyDispersed particle separationMetal/metal-oxides/metal-hydroxide catalystsChemistryLight source
The invention discloses a catalytic module capable of removing formaldehyde at room temperature and a preparation method thereof. The catalytic module comprises a skeleton carrier, coatings and catalyst layers, the skeleton carrier is a foam ceramic structure with three-dimensional pore channels, and the foam ceramic structure is internally provided with multiple pore channels which are interwoven into a net-shaped structure and arranged in any one of the X direction, the Y direction and the Z direction; the coatings are evenly coated on the surfaces of the pore channels in the foam ceramic structure and the other surface of the foam ceramic structure, and the catalyst layers are highly dispersed on the coatings. By means of the catalytic module capable of removing the formaldehyde at the room temperature and the preparation method thereof, at the room temperature and environment humidity, low-concentration formaldehyde can be oxidized into H2O and CO2, excellent low-temperature activity and removing efficiency are achieved, and the formaldehyde removing efficiency can be kept above 98 percent at the airspeed SV equal to 50,000 h<-1>. The preparation process is simple, the precious metal load is low, and accessory equipment such as light sources and heating are not needed. The catalytic module is suitable for air purification of closed and semi-closed spaces such as living rooms, office buildings, schools, dormitories, shopping malls, furniture markets and automobiles.
Owner:展宗城
Humid air turbine cycle with carbon dioxide recovery
InactiveUS20060260290A1Improving carbon dioxide removal efficiencyImprove removal efficiencyGas turbine plantsEngine controlCombustorCombustion chamber
Carbon dioxide (152) is removed following compressor (130) which compresses a mixture of compressed air (132) and recirculated exhaust gas (118′) from a gas turbine (120). The carbon dioxide depleted gas (136) is humidified (180, 114) and fed to the combustor (110).
Owner:FLUOR TECH CORP
Large-scaled culture method of high-concentration nitrosobacteria and application thereof
ActiveCN101709278AIncrease concentrationHigh activityBacteriaBiological water/sewage treatmentActivated sludgeHigh concentration
The invention discloses a large-scaled culture method of high-concentration nitrosobacteria and application thereof. The method comprises the following steps of: (1) adding an enrichment culture solution with initial ammonia nitrogen mass concentration of 30-500mg / L in a reaction device with functions of stirring, heating and aeration; preparing activated sludge of a waste water treatment plant in activated sludge of 0.5-20% for primary inoculation to conduct the enrichment culture of the nitrosobacteria by 2-6d as a culture cycle, wherein extra ammonium salts and a growth promoter are added during the enrichment culture of the nitrosobacteria; (2) ending the culture when the concentration of NO2-N in the solution is accumulated to reach 70-95% of the concentration of total nitrogen; adding a flocculating agent for flocculation and sedimentation; and allowing to stand still to remove supernate, and then adding the enrichment culture solution to start the culture of the second cycle; and (3) continuously conducting 3-8 cycles of the enrichment culture to obtain the high-concentration nitrosobacteria. By adopting the nitrosobacteria to strengthen the bi-nitrification treatment of ammonia nitrogen contained waste water, the method has the advantages of high stress resistance, low cost and high efficiency and is suitable for the complicated treatment of ammonia nitrogen contained industrial waste water.
Owner:ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
In-situ remediation method of heavy metal-organic combined pollution soil
InactiveCN106269843ATo achieve an organic combinationAchieve migrationContaminated soil reclamationEngineeringAlternating current
The invention relates to an in-situ remediation method of heavy metal-organic combined pollution soil. According to the method, a set of electrokinetic remediation device is added with a power switching system, an electrode heating technology is combined with the electrokinetic remediation and chemical oxidization technology, namely, the direct current power is utilized firstly, sodium persulfate used as the oxidizing agent is migrated to soil through electric process, meanwhile, migration and removal of heavy metal ion in the soil are realized. Then the alternating current power is switched, and soil is heated to a certain temperature through the electrode heating method so as to activate the sodium persulfate migrated to soil, and thereby realizing the in-situ degradation of organic pollutant in the soil. The method applies electrode to the electrode heating system and the electrokinetic remediation device at the same time, simplifies the remediation device and saves the system energy consumption while solves the difficulty that oxidant cannot migrate and activate in the soil and improves the remediation efficiency; the method is a combined soil remediation technology with prospect of application and promotion.
Owner:中建中环新能源有限公司 +1
Color film substrate, manufacturing method thereof, OLED display panel and display apparatus
ActiveCN105118928AImprove removal efficiencyImprove the display effectSolid-state devicesSemiconductor/solid-state device manufacturingDisplay contrastColor film
The invention discloses a color film substrate and manufacturing method thereof, and an OLED display panel and a display apparatus. The color film substrate comprises a substrate, and a black matrix layer and a blocking mat layer sequentially arranged on the substrate in a stacked way. The blocking mat layer comprises a plurality of blocking mats arranged in the same layer. The orthographic projection of the graph of each blocking mat on the substrate is located inside the area where the graph of the black matrix layer is located. In this way, the aperture ratio of the color film substrate will not be occupied. The surface of each blocking mat is provided with an auxiliary function layer which is used for absorbing or reflecting light irradiated to surfaces of the blocking mats. Optical crosstalk among adjacent sub-pixel units on the color film substrate can be prevented. Color mixing is further prevented. The light extraction efficiency and the display contrast can be further enhanced. The display effects are also improved.
Owner:BOE TECH GRP CO LTD
Device for Treating Wastewater Comprising Nitrogen and Phosphorus and a Method for the Same
InactiveUS20110247977A1Cost savingImprove removal efficiencyMembranesWater contaminantsChemistryBiomass
Disclosed are a device for treating nitrogen and phosphorus from wastewater, including: an algal culture tank for culturing microalgae capable of treating nitrogen and phosphorus from wastewater; and a separation membrane for separating thus treated water from the microalgae, and a method for the same.According to the disclosed device and method, microalgae are cultured at high concentrations using wastewater, instead of an artificial culture medium, as a culture medium. As a result, nitrogen and phosphorus can be effectively treated from the wastewater, and the microalgae, which are useful as a biomass, may be cultured and recovered stably.
Owner:KOREA INST OF SCI & TECH
Magnetic nanometer ion liquid composite particles as well as preparation method and application thereof
InactiveCN103100358ASimple and fast operationLow costMicroballoon preparationWater/sewage treatment by extractionCarboxyl radicalSilicic acid
The invention discloses magnetic nanometer ion liquid composite particles as well as a preparation method and application of the magnetic nanometer ion liquid composite particles in removing pollutants in water bodies. The preparation method of the magnetic nanometer ion liquid composite particle comprises the following steps of: firstly synthesizing ferric oleate into magnetic Fe3O4 nanometer particles by taking ferric oleate as an iron source and adopting a chemical precipitation method; preparing nanometer nuclear shell type magnetic silicon dioxide with surface amino-functionalization by utilizing the nanometer magnetic particles as a kern, taking ethyl orthosilicate and a silane coupling agent as silicon sources, and utilizing a colloidal sol-gel method; and synthesizing a functionalized ion liquid by utilizing reaction between N, N-carbonyldimidazole (CDI) and an ion liquid containing carboxyl, and thus preparing the magnetic nanometer ion liquid composite particle by utilizing reaction between the functionalized ion liquid and amino on the surface of the magnetic nanometer silicon dioxide; and the method is used for removing pollutants in the water bodies. The method provided by the invention has the advantages that the operation is simple and convenient, the cost is low, the treatment process is simple, and the removal efficiency is high.
Owner:SOUTH CHINA UNIV OF TECH
Coal-fired mercury discharge control method based on semi-dry process
InactiveCN1488423AEasy to controlImprove adsorption efficiencyDispersed particle separationElectricitySorbent
The invention discloses a kind of coal mercury discharging control method which is based on semi-drying method. Sprays additive into the boiler smoke, oxidizes the elemetary mercury into mercuric oxide easy to remove; then sprays liquid including oxidant into smoke and oxidizes the mercury, and the temperature is decreased and forms the low temperature for high efficiency absorption; sprays absorption agent into cooled smoke, eliminates the mercuric oxide and mercury; the solid particle containing mercury is collected through electricity deduster or baggage dedusting device. The invention reduces the cost of operation.
Owner:ZHEJIANG UNIV
Method and device for polishing magnetic field auxiliary flexible rotary brush for optical element
InactiveCN101559571ACompact structureImprove removal efficiencyOptical surface grinding machinesPolishing compositions with abrasivesFree formMagnetorheological fluid
The invention belongs to the technical field of precise optical polishing processing, and in particular relates to a method and a device for polishing a magnetic field auxiliary flexible rotary brush for an optical element. The method comprises that a ferromagnetic main shaft capable of rotating at a high speed drives a magnetorheological fluid which can be updated circularly to be adsorbed on a finished surface under certain pressure and the action of a magnetic field to form a flexible rotary polishing grinding head which finishes the polishing processing of a whole concave surface in a composite motion mode of self rotation and workpiece rotation. The device is applicable to polishing the concave surface of a conformal optical element; and the method has the characteristic of flexible fine machining and stable polishing removal, can adopt a computer to control the polishing removal distribution, is capable of controlling a polished surface shape, has the advantages of high precision and high surface quality, and is applicable to polishing aspheric surface and free-form surface elements with thin-walls and high gradients.
Owner:TSINGHUA UNIV
Transparent inorganic-oxide dispersion, resin composition containing inorganic oxide particles, composition for encapsulating luminescent element, luminescent element, hard coat, optical functional fi
ActiveCN101296982AHigh refractive indexExcellent mechanical propertiesInorganic pigment treatmentZirconium oxidesSilane couplingChemistry
A transparent inorganic-oxide dispersion which contains inorganic oxide particles whose surface has been modified with a surface modifier having one or more reactive functional groups and, due to this, enables improvements in refractive index and mechanical properties and retention of transparency; and an inorganic-oxide-particle-containing resin composition obtained by combining and uniting this transparent inorganic-oxide dispersion with a resin through a polymerization reaction. Also provided are: a composition for encapsulating luminescent elements; a luminescent element; a process for producing the resin composition containing inorganic oxide particles; a hard coat and an optical functional film which have high transparency and can attain improvements in refractive index and toughness; an optical lens; and an optical part. The transparent inorganic-oxide dispersion is characterized by comprising a dispersion medium and inorganic oxide particles the surface of which has been modified with a surface modifier having one or more reactive functional groups and which have a dispersed-particle diameter of 1 to 20 nm. It is further characterized in that the surface modifier is one or more members selected from the group consisting of silane coupling agents, modified silicones, and surfactants.
Owner:SUMITOMO OSAKA CEMENT CO LTD
Sintering smoke treatment system and sintering smoke treatment method
InactiveCN102580455AComprehensive management benefit maximizationHigh adsorptionDispersed particle separationMetallurgyMaterials science
The invention provides a sintering smoke treatment system and a sintering smoke treatment mode, which are used in synchronized desulfuration, denitration, purification and acid making. The sintering smoke treatment system comprises a smoke system (1), an ammonia filling system (2), a smoke treatment system (3) and an acid making system (5), wherein the smoke system (1) comprises a main exhaust fan (11) and a chimney (12), the smoke treatment system (3) comprises an adsorption tower (31) and an analyzing tower (32), and the adsorption tower (31) and the analyzing tower (32) are connected with each other. The main exhaust fan (11) of the smoke system (1) and the chimney (12) are respectively connected with the adsorption tower (31), the analysis tower (32) of the smoke treatment system (3) is connected with the acid making system (5), and the adsorption tower (31) of the smoke treatment system (3) is connected with the chimney (12) of the smoke system (1).
Owner:SHANXI TAIGANG STAINLESS STEEL CO LTD
Dynamic pressure cavitation jet polishing device of colloidal flow and method
InactiveCN101670556AImprove quality and efficiencyImprove processing efficiencyBlast gunsAbrasive feedersCavitationSemiconductor materials
The invention discloses a dynamic pressure cavitation jet polishing device of colloidal flow and a method, relating to a polishing device and a method and aiming at solving the problems that the existing polishing method of the ultrasmooth surface has low processing efficiency and high cost, the adaptability of the work piece material is limited and the existing polishing device of the ultrasmoothsurface has complex equipment and high maintenance cost. The device is characterized in that a cavitation jet device is fixed on a bracket; the input end of the cavitation jet device is connected with an outlet of a first flow reversing valve by a pipeline. The method comprises the following steps: (1) the polished work piece is immersed with 10 to 200mm by the colloidal polished liquid level; (2) the oil pressure of the cavitation jet device is 0.5 to 15MPa; (3) the cavitation jet pressure is 0.5 to 15MPa; and (4) the cavitation jet device is arranged in colloidal polishing liquid, the cavitation jet device sprays to the work piece at the speed of 15 to 250m / s, and after polishing, the work piece is taken out, namely the polished work piece. The invention is used for ultraprecise and ultrasmooth polishing of optical glass, microcrystal glass, semiconductor materials and monocrystal materials.
Owner:HARBIN INST OF TECH
Method for removing metal ions from aqueous solution by use of hydrotalcite
InactiveCN102336461AImprove removal efficiencyHigh ion exchange capacityOxygen/ozone/oxide/hydroxideWater/sewage treatment by ion-exchangeMetal ions in aqueous solutionRadioactive agent
The invention relates to the field of water treatment, specifically to a method for removing metal ions from an aqueous solution by the use of hydrotalcite. The method provided by the invention comprises the step of removing metal ions from an aqueous solution by the use of hydrotalcite. The metal ions, which refer to heavy metal ions or radioactive substance ions, comprise one or more selected from the group consisting of mercury, chromium, lead, arsenic, cadmium, tin, copper and zinc heavy metal ions. The radioactive substance ions comprise uranium, thorium and radium ions. According to the invention, hydrotalcite is applied in metal ions-containing sewage processing, leading to high metal ion removing efficiency and obvious effects. In the meanwhile, raw material sources for the preparation of hydrotalcite are extensive, the cost is low, the preparation method is simple, energy consumption is low and the investment is also low. Therefore, the method provided by the invention has an extensive application prospect.
Owner:INST OF PROCESS ENG CHINESE ACAD OF SCI +1
Method and installation for treating domestic sewage by using artificial wetland
InactiveCN1872738AIncrease dissolved oxygen contentPromote nitrificationSustainable biological treatmentBiological water/sewage treatmentConstructed wetlandVertical deflection
This invention relates to a combined vertical flow-vertical deflection wet land treatment technique for domestic wastewater. The technique comprises a pretreatment system and an artificial wet land system. The pretreatment system is mainly aim to removing the floating matters and precipitable suspended matters in domestic wastewater. The artificial wet land system is composed of combined vertical flow-vertical deflection in series. The invention has high removing rate on COD, N and P in domestic wastewater.
Owner:NANJING UNIV
Cleaning method and system of semiconductor substrate and production method of cleaning solution
InactiveUS6116254AMinimize power consumptionReduce adverse effectsNon-surface-active detergent compositionsSemiconductor/solid-state device manufacturingChlorate ionHypochlorite
A cleaning method for a semiconductor substrate is provided. After pure water is supplied to a cleaning tank, a chlorine gas is supplied to the pure water to thereby generate chloride ions, hypochlorite ions, chlorite ions, and chlorate ions in the pure water. Then, a semiconductor substrate is immersed into the pure water containing the chloride ions, hypochlorite ions, chlorite ions, and chlorate ions. The fabrication cost of a semiconductor device and adverse effects on the earth environment can be reduced. The concentration of the dissolved chlorine gas in the pure water is preferably in the range from 0.003 to 0.3% by weight.
Owner:RENESAS ELECTRONICS CORP
Ecological slope protection type sewage land infiltration system and ecological slope protection type sewage land infiltration method
InactiveCN103395930ASufficient oxygenGuaranteed treatment effectMultistage water/sewage treatmentDitchFilter material
The invention relates to an ecological slope protection type sewage land infiltration system which comprises a grid pond (2), an anaerobic hydrolyzing pond (4) and a stepped land infiltration unit which are sequentially arranged along the gradient of a sloping field from top to bottom, wherein the grid pond (2) is communicated with a ditch (1); the stepped land infiltration unit comprises multilevel slope protection infiltration beds (5); filter materials (7) are filled in the slope protection infiltration beds (5); hygrophyte communities (9) are cultivated on the slope protection infiltration beds (5); a modal conversion assembly (6) used for controlling infiltration speed, waterpower retention time, a filtering layer internal environment and an effluent water mode is arranged between adjacent slope protection infiltration beds (5). The ecological slope protection type sewage land infiltration system disclosed by the invention tolerates the rural sewage quality water flow impact, is difficult to block due to high reaeration capacity, intensifies the denitrification and dephosphorization effect, is green, energy-saving, economic and practicable and has excellent water conservancy and ecology value.
Owner:WUHAN UNIV
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