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62results about How to "Bring pollution" patented technology
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High-activity catalyst and its application in synthesizing polyester
A high-activity catalyst for both esterification and polycondensation contains anti-hydrolytic high-activity glycol titanium, the acetate, carbonate or oxalate of (1-4)-valence metal ions, and at least one of alkoxyl compound, organic acid and phosphorous compound. Its advantages are high activity, short reaction period, and no environmental pollution. Its resultant polyester has high photochemical performance and whiteness.
Owner:济南齐鲁化纤集团有限责任公司
Production method of electronic-grade sulphuric acid
ActiveCN103407972AHigh temperature resistantBring pollutionSulfur compoundsUltrafiltrationDistillation
The invention discloses a production method of electronic-grade sulphuric acid. The production method comprises the following steps in sequence: industrial-grade sulfur trioxide raw materials are provided and placed into a raw material storage tank; the sulfur trioxide raw materials are conveyed into an evaporator tank; the evaporator tank is heated; sulfur trioxide steam generated by heating enters into an absorption tower through a filter; the sulfur trioxide steam is absorbed by electronic-grade ultrapure water in the absorption tower, the concentration of absorption liquid is controlled, and the absorbed solution enters into a degassing tower after cooled by a cooler; air stripping is performed on a sulfuric acid solution by the degassing tower through compressed air; the sulfuric acid solution enters into a finished product storage tank after cooled; finally, the final electronic-grade sulphuric acid applied to the integrated circuit industry is obtained after ultrafiltration to remove particles. The operating temperature of the technology, compared with a conventional technology, is lower than 120 DEG C. Therefore, the technology is safer than a high-temperature distillation technology which takes industrial-grade sulfuric acid as raw material, and in addition, compared with adopting equipment made of quartz glass, non-pollution to electronic-grade sulphuric acid products is guaranteed from equipment material.
Owner:SHANGHAI ZHENGFAN TECH +1
Device for raising and converting fluid energy
InactiveCN102192101ALess investmentAlleviate the energy crisisWind motor controlHydro energy generationImpellerSolar power
The invention relates to a device for raising and converting fluid energy, comprising a flow tube device, a yawing seat and a tower drum, wherein the flow tube device is fixed on the top of the tower drum by virtue of the yawing seat; the flow tube device comprises an incoming flow section, a shrinkage section and a wake flow section; the incoming flow section is arranged towards the incoming flow direction of a fluid; the shrinkage section is arranged between the incoming flow section and the wake flow section; the shrinkage section is internally provided with a cabin; the cabin is internally provided with a transmission shaft, a transmission gear fixed on the transmission shaft and an objective power-consumption unit driven by the transmission gear; and two ends of the transmission shaft are fixedly provided with a group of blade wheels or multiple groups of blade wheels respectively. The device can provide large-scale energy sources to ease the increasing energy source crisis on the earth at present; the device is environmentally-friendly; and wind energy and tidal energy generating sets using the device are reduced in investment, and installation investment per kilowatt is farless than that of the existing fired power, nuclear power, hydropower, solar power, wind power and the like.
Owner:JIANG SU JUYUAN TECH
Flexible controlled-release microsphere disperse system formed by natural water-soluble polymer and preparation thereof and application of system in reinforcement of oil extraction
ActiveCN104861946AWith plugging and profile controlWith controlled release propertiesDrilling compositionMicrospherePolymer chemistry
The invention relates to a flexible controlled-release microsphere disperse system formed by a natural water-soluble polymer and preparation thereof and application of the system in reinforcement of oil extraction. The disperse system comprises an aqueous solution of the natural water-soluble polymer containing carboxyl and hydroxyl groups, an aqueous solution of an inorganic salt and a surfactant-dispersed octane emulsion, wherein the surfactant-dispersed octane emulsion is prepared by adding octane into an aqueous surfactant solution and carrying out uniform dispersion. According to the invention, the natural water-soluble polymer used in the invention is widely available, regenerable and environment-friendly, contains a great number of hydroxyl groups and a proper amount of carboxyl groups in the molecular chains and can form a flexible controlled-release microsphere with proper chain density and a flexible core-shell structure in the presence of multivalent inorganic salt ions. The flexible controlled-release microsphere migrates in holes in strata and can plug large holes, improve injection pressure and adjust injection profile.
Owner:SHANDONG UNIV
Preparation method of nickel nanoparticles
The invention belongs to the technical field of nanometer material synthesis, and particularly relates to a green and environment-friendly method for synthesizing nickel nanoparticles. The method includes the steps of adding acetylacetone nickel to olive oil, conducting heating to the temperature of 100 DEG C under the protection of nitrogen, keeping the temperature for 2 minutes, raising the temperature to 120 DEG C, keeping the temperature for 20 minutes, then raising the temperature to 260 DEG C to 280 DEG C, keeping the temperature for 10 minutes to 30 minutes, decreasing the temperature to 70 DEG C to 80 DEG C under the protection of nitrogen, cleaning obtained reaction liquid with n-butyl alcohol and normal hexane, and centrifugally separating out a product to obtain the nickel nanoparticles. The nickel nanoparticles prepared through a solvent thermal method are uniform in size, the production process is simple, the whole process is green and environmentally friendly, and no pollution can be caused to the environment.
Owner:JILIN UNIV
Thermo-sensitive composite material, as well as preparation method and application thereof
InactiveCN103554805ABring pollutionImprove performanceThermometers using physical/chemical changesAcetic acidPower station
The invention relates to a thermo-sensitive composite material, as well as a preparation method and application thereof. The thermo-sensitive composite material is prepared by mixing the following components in percentage by weight: 1-2 percent of high water absorption resin carrier, 5-20 percent of volatile substance, 0-1 percent of emulsifier, and the balance of water, wherein the volatile substance is one of ammonium hydroxide, ethanol, glacial acetic acid and ammonium bicarbonate. The composite material serving as an overheat warning material is applied to an overheat warning system of large power stations and motor distribution cabinets, and has the advantages of normal temperature stable performance, good thermosensitive property, little usage, environmental friendliness, timely and accurate warning and the like.
Owner:NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
Preparation method of <131>I<-> high-efficiency adsorbent in nuclear wastewater
InactiveCN103170301AFast directional adsorptionEfficient directional adsorptionOther chemical processesRadioactive decontaminationFiberIsotope
The invention discloses a preparation method of a <131>I<-> high-efficiency adsorbent in nuclear wastewater, which comprises the following steps: synthesizing sodium titanate nanotubes and nano fibers by a hydrothermal process, and doping and curing nano silver oxide particles to obtain the high-efficiency adsorbent. The high-efficiency adsorbent can quickly and efficiently adsorb and filter nuclear pollution wastewater, can be used for avoiding diffusion of radioactive substance <131>I<-> and other radioiodine isotopes, and is widely used for nuclear accident emergency, nuclear facility shielding and medical radioactive wastewater treatment.1g of the novel adsorbent can be used for filtering and purifying 1 ton of radioactive wastewater; and the adsorbent can completely absorb and fix the radioactive substance <131>I<-> in the nuclear wastewater with the radioactive <131>I<-> content of lower than 200 ppm, and thus, is a high-efficiency adsorbing material with directional selectivity.
Owner:QINGDAO UNIV
Manual lake water wave power generation equipment
InactiveCN105240201AAvoid damagePower generation method is green and environmentally friendlyMachines/enginesEngine componentsWave power generationGear wheel
The invention discloses manual lake water wave power generation equipment which comprises an acting device and a power generation device. The acting device is arranged on a lakeside or a riverside. The power generation device is connected with the acting device. The acting device comprises a limiting sleeve fixed to the bulkhead wall. A floating pole is arranged inside the limiting sleeve. The power generation device comprises a cutting coil and a magnet device. A rotating shaft is arranged on the cutting coil. The rotating shaft is fixedly arranged relative to the floating pole. A gear is arranged on the rotating shaft. A gear rack matched with the gear is arranged on the floating pole. Compared with the prior art, the manual lake water wave power generation equipment has the power generation mode that the floating pole floats upwards or sinks downwards under the effect of water waves to drive the cutting coil to rotate and cut magnetic induction lines for power generation, the power generation mode is more environment-friendly, suitable for residents on the lakeside or the riverside, and damages caused by waves to bulkhead wall buildings can be reduced due to large-scale construction.
Owner:WUXI HAOYU ENERGY SAVING ENVIRONMENTAL PROTECTION EQUIP CO LTD
Apparatus for extending yellow lead production technology and realizing energy-saving preparation of tetrabasic lead sulfate
The invention discloses an apparatus for extending yellow lead production technology and realizing energy-saving preparation of tetrabasic lead sulfate. The apparatus comprises a heat insulation storage barrel, an automatic metering device, a circular track, a reaction tank, a centrifuging device and a wastewater collecting barrel; and the heat insulation storage barrel is arranged below the discharging opening of a yellow lead calciner, and is used for storing a yellow lead product discharged from the calciner, the automatic metering device is arranged at the discharging opening of the heat insulation storage barrel, the circular track is supported by a support to form an overhead structure, the circular center (initial feeding point) of the circular track is below the heat insulation storage barrel, and other positions are determined according to the layout of a production workshop. The apparatus has the advantages of simple structure, good practicality, full and effective utilization of the product yellow lead obtained through the yellow lead production technology and the heat obtained after the calcination of the product, realization of low energy consumption, high production efficiency, production cost saving, uniform morphology of the produced product, and recycling and no environment pollution of a generated waste liquid.
Owner:安徽徽能化工科技有限公司
Novel water-based heat-insulating reflective coating and preparation method thereof
The invention provides a novel water-based heat-insulating reflective coating and a preparation method thereof. Novel titanium dioxide microbeads are added in the water-based coating so as to reflectnear infrared rays, cold paint is added so as to reduce the absorption of paint to near infrared rays, so that the absorption of the coating on the near infrared rays can be greatly reduced, and the building energy conservation effect can be achieved. Compared with the prior art, the novel water-based heat-insulating reflective coating has the following advantages: (1) the product is water-solubleresin so as not to be capable of causing environment pollution; and (2) the novel water-based heat-insulating reflective coating provides a novel building coating energy conservation method.
Owner:NANCHANG UNIV
Wind tunnel type supercharged wind energy generating system
InactiveCN101832232AAlleviate the energy crisisBring pollutionWind motor controlWind motor combinationsImpellerEngineering
The invention relates to a wind energy generating system, in particular to a wind power generating device which adopts a wind collecting type wind tunnel and has the advantages of improving the wind speed, controlling the airflow, enhancing the wind pressure and utilizing an energy collecting impeller to obtain large-scale wind energy. In the invention, an appropriate wind power electric field is selected, the horn-shaped wind tunnel is built in the windward direction, and the wind tunnel is transited to an energy collecting section from a stabilizing section and a shrinkage section. A tunable wind wheel is installed at the energy collecting section, and a generator set is driven to obtain electric energy. In the invention, a speed measurement and regulation device, a safety device, a decompression device and an antifreezing, snow defending and lightning protection device are also arranged.
Owner:施建勇
Feed additive for treating bacterial enteritis disease of phractocephalus hemioliopterus, as well as preparation method thereof
InactiveCN106418001AEffective treatment of bacterial enteritisPromote recoveryAntibacterial agentsFood processingFlosDisease
The invention relates to a feed additive for treating the bacterial enteritis disease of phractocephalus hemioliopterus, as well as a preparation method for the feed additive. The feed additive is prepared from the following components in parts by mass: 40 to 48 parts of flos puerariae, 21 to 27 parts of Huangpao, 24 to 28 parts of houttuynia cordata, 30 to 35 parts of rhizoma phragmitis, 8 to 12 parts of endothelium corneum gigeriae galli, 3 to 5 parts of tangerine peel, 12 to 17 parts of dandelions, 17 to 25 parts of opuntia dillenii haw, 14 to 19 parts of folium isatidis, 18 to 25 parts of onions, 11 to 15 parts of mint, 14 to 20 parts of portulaca oleracea, 13 to 18 parts of tree peony barks, 2 to 3 parts of pu-erh tea, 15 to 20 parts of fructus cnidii, 11 to 16 parts of pine nuts, 15 to 21 parts of lithospermum purpurocaeruleum, 16 to 22 parts of Chinese pulsatilla roots, 17 to 22 parts of persicaria orientalis, 18 to 25 parts of cortex phellodendri, 9 to 14 parts of eucommia ulmoides oliv, 15 to 21 parts of barley and the like. The feed additive is environment-friendly, and can be used for effectively treating the bacterial enteritis disease of the phractocephalus hemioliopterus.
Owner:QINGDAO HAIZHIYUAN INTELLIGENT TECH
Oil stain removing polishing cream for metal stainless steel and preparation method thereof
The invention aims to provide dirt removing bright water cream for household stainless steel appliances and a preparation method thereof. The water stainless steel bright cream adopts water as solvent, so that the volatilization of organic solvent and the carbon emission are reduced, such advantages as greenness, environmental protection, low carbon and low cost are achieved, and the staff health is protected. Palm wax is added in the formula to achieve a brightening effect; glycerin and white oil are added in the formula to achieve lubricating and humidifying effects; an oil dispersing agent is added to mainly disperse nanometer Al2O3 powder. An emulsifying agent adopts glyceride and nonyl phenol polyoxyethylene ether NP-10. A chelating agent adopts ethylene diamine tetraacetic acid tetrasodium and sodium gluconate. The product is the water cream without causing pollution to the environment, has such three effects as stainless steel dirt removal, brightening and rust removal, and can largely reduce the cost.
Owner:NANCHANG UNIV
Streptococcus inhibitor for tilapia mossambica culture pond and preparation method thereof
InactiveCN107347944ABring pollutionSimple manufacturing methodAntibacterial agentsBiocideDiseaseGLYCYRRHIZA EXTRACT
The invention belongs to the technical field of prevention and control of aquaculture diseases and in particular to a streptococcus inhibitor for a tilapia mossambica culture pond; and the invention further relates to a preparation method of the streptococcus inhibitor for the tilapia mossambica culture pond. The streptococcus inhibitor for the tilapia mossambica culture pond, provided by the invention, is prepared from the following components: honeysuckle flowers, folium mori, folium artemisiae argyi, corn stigma, white tea, white vinegar, sunflower stems, lotus leaves, liquorice roots, folium crataegi, folium perillae, wax gourd peels, cortex granati, dry yeast powder, ginkgo nuts, chrysanthemum flowers, herba hydrocotylis, chenopodium album linn, coxtex moutan, alcohol with the mass concentration of 50% to 60%, nano-grade zeolite powder and xanthan gum. The streptococcus inhibitor for the tilapia mossambica culture pond, provided by the invention, is natural and environmentally friendly and has a remarkable inhibition effect on pathogenic bacteria streptococcus of the tilapia mossambica culture pond.
Owner:QINGDAO HAIZHIXING BIOLOGICAL SCI & TECH
Simple preparation method for artificial opal
The invention discloses a convenient preparation method of artificial opal and the equipments thereof, comprising the preparation of colloid spherule solution, injecting colloid spherule solution into an assembling pool, and forming photonic crystal by drying; the assembling pool consists of two glass boards and a macromolecular film frame that is provided with a plurality of scotches and is tightly clamped between the two glass boards. The method to prepare the photonic crystal provided by the invention has the advantages of simple and easy operation, the glass boards being easy to be repeatedly used, no environment pollution, no shrinkage of the macromocular film during the drying process, thereby avoiding causing more defects to the photonic crystal sample.
Owner:ZHEJIANG UNIV
Novel treatment process for underground water with high content of iron and manganese
InactiveCN106315913ABring pollutionGood flocculation effectOther chemical processesWater contaminantsActivated carbonThree stage
The invention provides a novel treatment process for underground water with high content of iron and manganese. Filtering is performed in a three-stage filtering manner including activated carbon filtering, activated carbon filtering and manganese sand filtering. The filter efficiency is high, and the effect is good. Compared with a traditional method, energy is saved, and consumption is reduced; modified bagasse activated carbon is adopted, raw materials are environment-friendly, renewable and low in cost and facilitate recovery of iron and manganese, and waste is turned into wealth.
Owner:北京理工水环境科学研究院有限公司
Safe and efficient compound disinfection solution
InactiveCN109221223AImprove effectivenessIncrease distribution densityBiocideFungicidesSporeResistant bacteria
The invention provides a safe and efficient compound disinfection solution, for the technical problem that the long-term use of single-component disinfectant existing in the prior art is easy to produce drug resistance, and cannot kill more highly resistant bacteria and fungi, as well as smaller bacteria and fungi spores and can only inhibit germination and reproduction, and the compound disinfection solution is prepared from the following components in parts by mass: 0.25 part of PHMG, 0.04-0.15 part of 2,2'-[1,2-Ethanediylbis(oxy)]bisethanamine polymer with guanidine monohydrochloride, and 29-400 parts of water. The disinfectant prepared by combining the two guanidine compounds enlarges the application range of the disinfectant, and the synergistic effect between the two guanidine compounds the use of the disinfectant at the conventional concentration kills more highly resistant bacteria and fungi, as well as smaller bacteria and fungal spores.
Owner:陕西嘉禾药业有限公司
Completely-biodegrading low-mobility-plasticizer polylactic acid material and preparation method thereof
The invention discloses a completely-biodegrading low-mobility-plasticizer polylactic acid material and a preparation method thereof. The preparation method includes following steps: (1) blending glycerin and lactic acid according to a molar ratio of 1:0.5-10; (2) adding a water-carrying agent accounting for 2-15 wt% of a total mass and a catalyst accounting for 0.1-5 wt% of the mass of the glycerin to obtain a mixed material, stirring the mixed material at 130-250 DEG C for 3-24 h, and removing the water-carrying agent and removing micromolecules which are not reacted at 50-220 DEG C under a vacuum degree of 0.5-20 kPa to obtain a low-mobility plasticizer; and (3) adding 100 parts of polylactic acid and 5-90 parts of the low-mobility plasticizer to a macromolecule blend processing device and performing a blending process at 130-220 DEG C for 3-20 min to obtain the completely-biodegrading low-mobility-plasticizer polylactic acid material. The polylactic acid material, which is modified by the low-mobility plasticizer, has high tensile strength and elongation at break, is excellent in flexibility, is low in mobility of plasticizer, is good in biodegradability, and has wide application prospects in the fields of packaging materials, medicinal and hygienic materials, daily necessities and automobile part materials.
Owner:SICHUAN UNIV
A kind of preparation method of functional nano-cellulose composite airgel
Owner:NANJING FORESTRY UNIV
Preparation method of controlled-release degradable coating material
The invention relates to a preparation method of controlled-release degradable coating material. The preparation method includes the steps of firstly, adding deionized water into starch, adding hydrogen peroxide, adding composite catalyst, and heating to 65 DEG C to allow for oxidizing reaction for 1.5h; secondly, adding sodium sulfite into reaction liquid, adding borax and hydroxymethyl cellulose, and allowing for crosslinking reaction for 40 minutes; thirdly, pasting, namely adding the sodium hydroxide into the reaction liquid, and heating to 90 DEG C to allow for pasting reaction for 30 minutes; fourthly, grafting, namely adding polyacrylamide into the reaction liquid of the step 3, allowing for reaction for 10 hours at 90 DEG C; fifthly, adding 20% PPM of acid into the reaction liquid, adjusting pH of the solution to 7-7.5 to obtain the coating material for fertilizer. The coating material prepared by the preparation method is applicable to surface coating for various fertilizer particles, application range of the coating material is widened greatly, use of the coating material is facilitated, and cost is saved for enterprises.
Owner:TIANJIN SHIYIDE FERTILIZER
N-type crystalline silicon solar battery and preparation method thereof
InactiveCN106847983AWill not polluteWon't hurtFinal product manufacturePhotovoltaic energy generationElectronic transmissionAlloy
The invention provides an n-type crystalline silicon solar battery and a preparation method thereof. A back field of the n-type crystalline solar battery is realized through n-type crystalline silicon and a low work function material at the back of the n-type crystalline silicon; the low work function material is low work function metal or low work function alloy; the low work function metal can be magnesium, germanium, lithium, neodymium, or calcium, or the like; the low work function alloy can be magnesium-neodymium alloy, magnesium-germanium alloy, magnesium-lithium alloy, germanium-lithium alloy or calcium-magnesium-germanium-lithium alloy. The low work function metal of the low work function alloy is manufactured on the back of the n-type crystalline silicon, so that the band bending can be realized, an n-n+ high-low junction is formed, and then a hole can be driven, an electronic transmission function is enhanced, the battery can acquire high open-circuit voltage and short-circuit current, and the battery efficiency is improved; the preparation process is simple, the cost is low, high temperature and post-annealing treatment are unnecessary, a silicon wafer is not damaged, and the environment cannot be polluted.
Owner:HEBEI UNIVERSITY
Regression reflection energy-saving outer wall system
ActiveCN109779083AProtect from direct sunlightGood to take awayWallsLighting and heating apparatusWater storage tankControl valves
The invention discloses a regression reflection energy-saving outer wall system. The system comprises a vertically-arranged wall body; a spray head system is arranged on the wall body and comprises awater collection tank arranged on the roof; a water storage tank connected with the water collection tank and a spray head arranged outside the wall body, the spray head is connected with the water storage tank through a water spray pipeline, and a control valve is arranged on the water spray pipeline and connected with a controller; the heat insulation structure is characterized by further comprising an outer retaining wall which is vertically arranged, the outer retaining wall is arranged on the outer side of the wall body at intervals, and a heat insulation space which circumferentially communicates with the outer retaining wall and the wall body outwards is formed between the outer retaining wall and the wall body. The air conditioner has the effects of spraying cooling, heat insulation, heat preservation, convection cooling and the like, so that the cold load of the air conditioner is reduced, and the purposes of energy conservation and emission reduction are achieved.
Owner:CHONGQING UNIV
Method for preparation of super long fibrous titanium dioxide by taking cellulosic fibers as template
The invention provides a method for the preparation of super long fibrous titanium dioxide by taking cellulosic fibers as a template, relates to the method for the preparation of the super long fibrous titanium dioxide, and aims to solve the problems caused by the existing method that the prepared fibrous material cannot reach more than 15mu m in length; and the process is complicated, the sources are single, the cost is high and the yield is low. The method provided by the invention comprises the following steps: 1) preparing a natural fiber dispersion liquid; 2) preparing the dispersion liquid of natural fibers bonded with TiOH<3+>; 3) preparing the dispersion liquid of the natural fibers bonded with TiOSO4; 4) preparing the natural fibers bonded with titanium dioxide; 5) preparing natural wet fibers with core-shell structures bonded with the titanium dioxide; 6) preparing organic-titanium dioxide fibers with the core-shell structures; and 7) sintering at a high temperature and demolding the template. The method is applied to the fields of photoelectric materials, sensors, medicine release, energy storage materials, single molecule probes, neural signal detection and the like.
Owner:NORTHEAST FORESTRY UNIVERSITY
Production method of electronic-grade sulphuric acid
ActiveCN103407972BHigh temperature resistantBring pollutionSulfur compoundsUltrafiltrationDistillation
Owner:SHANGHAI ZHENGFAN TECH +1
Water body heavy metal removal technique
InactiveCN106365278AGood flocculation and filtration effectsImprove efficiencyWater contaminantsTreatment involving sedimentationActivated carbonHeavy metals
The invention provides a water body heavy metal removal technique. The fine sand precipitation+activated carbon+activated carbon three-stage filtration mode is adopted for filtration, so the technique has the advantages of high filtration efficiency and favorable effect. Compared with the traditional method, the technique has the advantages of energy saving and consumption reduction. By adopting the modified bagasse activated carbon, the raw material is environment-friendly and renewable, thereby changing wastes into valuable substances and being low in cost. The heavy-metal-attached fine sand can remove heavy metals from the natural water circulation when being used in the arbor planting substrate.
Owner:北京理工水环境科学研究院有限公司
Preparation method of anti-dazzle porous composite film and anti-dazzle glass using composite film
InactiveCN107311464ABring pollutionStable manufacturingAlkali metal silicatesComposite filmOptical transmittance
The invention provides a preparation method of an anti-dazzle porous composite film. The preparation method comprises the following steps: (1) preparing silicate sol containing the following components at a mole ratio, wherein the mole ratio of Na2O to Al2O3 to SiO2 is (0 to 0.03): (0 to 0.03): 1; (2) adding a pore forming agent into the silicate sol, enabling the pore forming agent to suspend on the surface of the silicate sol, obtaining a macropore array silicate film compounded with the pore forming agent through a self-assembling reaction, and aging after film formation to obtain a silicate-microparticle composite film; and (3) taking the silicate-microparticle composite film on a slide, carrying out drying and calcinations in sequence, and removing a microparticle template to obtain the anti-dazzle porous composite film, wherein array holes with the pore diameters of 150 to 300 nm are formed in the anti-dazzle porous composite film. According to the prepared composite film, the haze can be improved to the maximum extent on the premise of not reducing the light transmittance in the using process on the glass substrate, so that an anti-dazzle effect is achieved effectively.
Owner:SUZHOU SHINWU OPTRONICS TECH +1
Real-time dynamic monitoring device and monitoring method for soil sampling sand content of underwater open caisson
PendingCN113588573AUndisturbedBring pollutionColor/spectral properties measurementsSoil scienceEnvironmental engineering
The invention discloses a real-time dynamic monitoring device and method for the soil sampling sand content of an underwater open caisson. The real-time dynamic monitoring device comprises a drainage device and a monitoring device, wherein the drainage device is communicated with a side wall of an open caisson soil sampling main pipeline; the monitoring device comprises an incident probe and an emergent probe which are arranged on the two sides of the drainage device, the incident probe is connected with a light source through an incident optical fiber, and the emergent probe is connected with a spectrum detector through an emergent optical fiber; incident light emitted by the light source is transmitted to the incident probe through the incident optical fiber and then enters to-be-detected liquid in the drainage device, and modulated light transmitted from the to-be-detected liquid is absorbed by the emergent probe and then is transmitted to the spectrum detector through the emergent optical fiber. The sand content of the to-be-measured liquid can be dynamically measured in real time on an engineering site, the structure is simple, and measurement precision is high.
Owner:CCCC SECOND HARBOR ENG +1
Degradable waterborne polyurethane/polyvinyl alcohol composite material and preparation method therefor
InactiveCN105038188ALow organic solvent contentCompliance with emission standardsDibutyl tin dilaurateAdipate
The invention discloses a degradable waterborne polyurethane / polyvinyl alcohol composite material. The degradable waterborne polyurethane / polyvinyl alcohol composite material is prepared from the following raw materials in parts by mass: 7-17 parts of isophorone diisocyanate, 14-24 parts of hydroxy-terminated poly-L-lactic acid, 8-18 parts of polyneopentanediol adipate, 3-5 parts of dimethylolpropionic acid, 2-7 parts of N-methyl pyrrolidone, 1-5 parts of acetone, 1.5-4.5 parts of triethylamine, 30-40 parts of deionized water, 22-32 parts of polyvinyl alcohol and 0.05-0.1 part of dibutyltin dilaurate. The preparation method comprises: step 1, weighing raw materials; step 2, preparing waterborne polyurethane emulsion and a polyvinyl alcohol solution; and step 3, preparing the waterborne polyurethane / polyvinyl alcohol composite material. The degradable waterborne polyurethane / polyvinyl alcohol composite material prepared by the preparation method disclosed by the invention does not pollute the environment, and is a biodegradable type material.
Owner:XIAN UNIV OF TECH
Preparation method of tilapia mossambica fodder
InactiveCN106306605APromote digestionPromote growthFood processingClimate change adaptationPEARTilapia
The invention relates to a preparation method of tilapia mossambica fodder and belongs to the technical field of fodder preparation. According to the invention, the preparation method comprises the following steps: firstly mixing materials such as banana skin and pear and juicing, and mixing with corn starch, bean pulp and the like to obtain a mixture; then paving the mixture on a glass plate, and after placing earthworm for breeding, collecting the earthworm, and drying and smashing residues on the glass plate to obtain the base stock of the tilapia mossambica fodder; and then, after drying and smashing the collected earthworm and chicken liver, mixing and cooking with radix scutellariae, seaweed and the like, filtering, and mixing a filtrate with the base stock of the tilapia mossambica fodder for standing, thus obtaining the tilapia mossambica fodder. In the tilapia mossambica fodder prepared according to the preparation method disclosed by the invention, the protein content is 27-29%, and the protein conversion rate reaches more than or equal to 3.25%, thus being favorable for the tilapia mossambica to digest and promoting the growth of the tilapia mossambica; the problem of overhigh content of ammonia nitrogen in aquatic water cannot be caused, pollution to the water cannot be caused, and the environment is protected.
Owner:CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECH
Preparation method for photo-catalysis material with aerogel substrate
InactiveCN102836745BEvenly dispersedEffective dissolutionBiocideWater/sewage treatment by irradiationCelluloseIonic liquid
The invention provides a preparation method for a photo-catalysis material with an aerogel substrate and relates to the preparation method for the photo-catalysis material. The preparation method is mainly used for solving the technical problem of low photo-catalysis effect caused by the difficulty in utilizing the functionality of the embedded nanometer material of the present nanometer material loading substrate. The preparation method comprises the following steps: 1) weighting nanometer materials with photo-catalysis activity, ionic liquid and celluloses in proportion; 2) uniformly dispersing the nanometer materials in the ionic liquid, and then adding the celluloses, thereby obtaining blended liquid; 3) pouring the blended liquid obtained in the step 2) into a mould, cooling, and then pouring into a regenerating solution, and depositing and regenerating, thereby obtaining a compound gel; and 4) drying the compound gel prepared in the step 3), thereby obtaining the photo-catalysis material with the aerogel substrate. The photo-catalysis material provided by the invention can be used for catalytically degrading the organic pollutants or harmful strains, such as escherichia coli, and the like.
Owner:NORTHEAST FORESTRY UNIVERSITY
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