353results about How to "Good removal effect" patented technology

A catheter for removing plaque in a blood vessel and a medical apparatus comprising a catheter of this kind are proposed. The catheter has a catheter sheath, a cutter for removing plaque disposed in the region of the distal end of the catheter sheath, a catheter tip disposed in the region of the distal end of the catheter sheath and bendable relative to the catheter sheath, and at least one imaging sensor arranged in the region of the distal end of the catheter sheath or in the bendable catheter tip. The image signals recorded by means of the catheter are transmitted for display purposes to an image processing and playback device. A method for assisting a minimally invasive intervention to remove plaque in a blood vessel by the catheter is also provided.

The invention provides various methods for removing gas phase pollutants by calcining limestone or dolomite using flash calcination to produce a high surface area lime or hydrated lime and directly adding the lime or hydrated lime to a gas stream containing gas phase pollutants. In other methods, the production of an activated sorbent, such as activated carbon, is combined with the production of the high surface area lime or hydrated lime and directly added to a gas stream containing gas phase pollutants. The combination of lime or hydrated lime and an activated sorbent enhances the removal of gas phase pollutants such as those from a coal-fired boiler flue gas.

The invention discloses an impact filtering method for strengthening an asymmetric binary modulating signal, belonging to the digital information reception technical field. The impact filtering method for strengthening the signal is based on a special infinite impulse response (IIR) narrowband digital band-pass filter, the filter is composed of simple zero and multiple poles, and extremely narrowtrapped wave-frequency selection characteristic can be presented at the center frequency of the filter, so that filtering output waveform adaptive to the asymmetric binary modulating signal produces obvious and intense parasitic amplitude modulation impact at information modulation position, output signal to noise ratio can be greatly improved, and modulation information of the signal even can behighlighted in overshooting form under the condition that the signal is completely submersed by the noise, thus transmission performance of the asymmetric binary modulating signal can be obviously improved and the structure of a receiver can be simplified.

A dryer has a drying chamber to receive damp items and a process air duct to feed process air into and extract process air out of the drying chamber. The process air duct has a heat source and a heat sink to heat the process air before the process air enters the drying chamber and to cool the process air after the process air leaves the drying chamber, respectively. A cleaning device has an accumulator for a liquid; a rinsing line connected to the accumulator; a control organ in the rinsing line; a distributor connected to the rinsing line to distribute the liquid conveyed through the rinsing line on a lint filter and to receive the lint caught by the lint filter; and a drain line to drain the liquid with the received lint away from the lint filter and towards the accumulator.

The invention discloses a method and a system for laser deicing for power transmission and transformation equipment. The method comprises the steps of: adopting laser frequency conversion technology and a galvanometer scanning focusing principle; adopting a continuous or long-pulse solid laser as core deicing equipment; outputting infrared laser, partially converting the infrared laser into visible laser; coaxially outputting the infrared laser and the visible laser; focusing and irradiating on an ice-covering area of the power transmission and transformation equipment to deice through a collimating mirror, two scanning galvanometers and a focusing mirror; adopting control equipment to control the opportunity and the time of laser output of the laser and the vibration of the scanning galvanometers to ensure that the laser irradiated on the ice-covering area of the power transmission and transformation equipment performs two-dimensional mobile scanning; and observing the irradiation position of the visible laser through a tracking and aiming device to prevent the laser from damaging the power transmission and transformation equipment. The system has small volume and light weight, realizes the long-distance focusing of the laser, is favorable for removing large-area ice coating, realizes the tracking and observation of the laser deicing, prevents the laser from damaging the power transmission and transformation equipment, and can remove ice layers under the condition of no poweroff for a conducting wire iron tower; and the system can also be used for the deicing of the power transmission and transformation equipment such as insulators, overhead transmission lines, iron towers and the like.

The invention relates to a denitrifying agent for directly removing a basic nitrogen compound from shale oil. The denitrifying agent comprises the following components in percentage by weight: 40 to 80 percent of B, 0.5 to 10 percent of L, 0.1 to 0.5 percent of S and the balance of water, wherein B is phosphoric acid; L is Lewis acid; and S is a water-soluble demulsifier. The B in the formula can provide H+ which is complexed into salt with a lone electron pair of the basic nitrogen compound so as to remove the basic nitrogen compound from oil; L can accept the lone electron pair of the basic nitrogen compound to be complexed into salt, and the synergistic effect of B and L has high capacity of removing basic nitrogen; and S has good demulsifying effect and can improve the uniformly mixing degree of the water-soluble B and L agents with oil in the oil stirring process. Therefore, the nitrogen removal efficiency of a primary agent is improved.

Composition for removal of nail polish, plaster, adhesives, discolorations or other adhesive products on the skin and/or nails, which to at least 20% includes one or more esters of one or more natural oils, which further includes one or more synthetic esters, and which is substantially free from volatile solvents. The invention also refers to a composition of the same type for paintbrush wash and/or removal of industrial paint or other adhesive products on objects.

The invention discloses a fiber fence intrusion monitoring system and a pattern recognition method thereof. A dynamic threshold value parameter is set according to the magnitude of energy of a sampled signal, the sampled signal is segmented in a certain number, and the LC number in which the signal amplitude exceeds the threshold value parameter is counted in each segment, so that an LC distribution characteristic is obtained; and the LC distribution characteristic is calculated and counted to obtain a group of characteristic values, the group of characteristic values are input into a classifier for judgment output, and whether to alarm or not is decided according to an event mode represented by an output result of the classifier. By adopting the fiber fence intrusion monitoring system and the pattern recognition method thereof, the type of an intrusion signal is recognized while the intrusion is detected and positioned, the interference of noise can be well eliminated, the threshold value is automatically adjusted according to the magnitude of signal energy, the accuracy of the extracted characteristic vector is ensured, the recognition accuracy is effectively improved, and the problem of error alarms under the strong interference environments such as wind and rain is well solved.

The invention belongs to the technical field of environment protection, and in particular relates to a device and a method for restoring soil polluted by polychlorinated biphenyl. Oxygen fed into the soil is reduced on the surface of a cathode to produce hydrogen peroxide by applying a power supply; ferrous ions in the soil and the hydrogen peroxide perform reaction to generate hydroxyl radical (.OH); the.OH can oxidize and degrade organic pollutants in the soil, so that the organic pollutants can be finally converted into small-molecule substances such as CO2, H2O and inorganic salt. By a union ultrasonic technology, the pollutants in the soil can be physically desorbed according to a mechanical effect and an emptying phenomenon, and water molecules can be decomposed to form free radicals with high oxidability such as the.OH; an effect of promoting electro-fenton is achieved. The device and the method have wide application range and short treatment period; the soil polluted by the polychlorinated biphenyl can be economically and effectively subjected to in-situ restoration.

The invention proposes a method for performing ozone catalysis-coupled biological nitrification treatment on acrylonitrile wastewater. The method is characterized in that the deep treatment is carried out on the acrylonitrile wastewater by adopting a technology of combining ozone catalytic oxidization with biological nitrification. The method comprises the main processes as follows: carrying out balance of quality and quantity of rainfall entering an adjusting pool (1), removing residual ozone in water from an ozone removal pool (5) after the rainfall flows through a pre-oxidization tower (3) and a catalytic oxidization tower (4); carrying out ammonia nitrogen removal through a nitrifying pool (7), discharging final produced water from a clean water tank (8); supplying the alkalinity required for nitrification through an alkali tank (10); and carrying out concentrated treatment after tail gas of an ozone oxidization tower is collected.

A process for treating the sewage generated by preparing fruit juice includes such steps as regulating pH value and flow, air floating for degumming, anaerobic fermenting decomposing, aerobic treating, mud-water separation, biologic treating, physical filtering and disinfecting. Its advantages are high-effect to remove organic substances (pectin) and low cost.

The invention relates to a method for treating industrial wastewater and application of the method, belonging to the field of wastewater treatment. The method for treating wastewater comprises the steps: conducting yeast treatment, catalysis microelectrolysis, two-phase anaerobic treatment, CASS (Cyclic Activated Sludge System) method treatment, advanced oxidization and biological aerated filter to industrial wastewater. In the method for treating wastewater, the treatment units are reasonably combined, COD and ammonia nitrogen removal efficiency is high, and the wastewater treated by using the method can meet the demand of up-to-standard emission or backwater recycling. The method for treating the wastewater is low in running cost, very applicable to treatment of antibiotic industrial wastewater, especially to treatment of erythromycin thiocyanate wastewater, thus the method has wide industrial application prospects.

The invention discloses an environmentally-friendly composite microorganism preparation for eliminating house-fitment pollution. The composite microorganism preparation comprises the following bacterial components in percentage by weight: 15 to 35 percent of lactobacillus acidophilus, 15 to 35 percent of candida utilis, 5 to 25 percent of bacillus licheniformis, 10 to 25 percent of streptomyces albulus and 15 to 30 percent of rhodopseudomonas palustris and is obtained by compositely culturing the bacterial components by a fermentation process which combines anaerobic fermentation with aerobic fermentation.

The invention relates to an efficient nitrogen and phosphorus removal township sewage treatment method and device, and belongs to the technical field of sewage treatment. The device comprises a pre-denitrification area, an anaerobic area, an aerobic tank 1, an anoxic area, an aerobic tank 2, an MBR (membrane biological reactor) tank and a disinfection and clean water tank. After entering the device, sewage is sequentially subjected to anoxic denitrification, anaerobic phosphorus release, aerobic phosphorus uptake, anoxic denitrification and aerobic phosphorus uptake under the action of different types of microorganisms. Endogenous denitrification is enhanced by biological stuffing, sectioned phosphorus removal and denitrification are performed, the contradiction of carbon source demands of nitrogen and phosphorus removal is solved, township domestic sewage can be subjected to deep nitrogen and phosphorus removal treatment without adding carbon sources, and nitrogen and phosphorus are efficiently removed by efficient interception separation characteristics. The device is stable in effluent quality and particularly suitable for treating township sewage in sensitive water body areas such as a water source area and a scenic area or needing recovery, the effluent quality can stably reach a first-class A standard and a surface water quasi four-class water standard which is the highest standard for domestic municipal sewage treatment.

The invention discloses a lane line confirmation method in a lane line detection system. The method comprises the following steps that: 1, a camera collects an image; 2, edge enhancement is carried out on the image collected by the camera; 3, binary processing is carried out on the image after the edge enhancement; 4, candidate edge points at the inner side of a lane line are screened out according to characteristic rules of the lane line; 5, a fitting technology is adopted for carrying out fitting on the inner edge of the lane line, and obtaining a line or curve model of a lane; and 6, confirming the lane line. The image collected by the camera in the step 1 is a gray level image or a color image, if the image is the color image, the color image is converted into the gray level image through a color image to gray level image conversion formula.

The invention relates to a polyaniline nanofiber and a method for making the same. The technique is characterized in that polyethyleneglycol with ether link functional group is taken as a templating agent, a homogeneous system of water and water-solubility organic solvent is taken as a reacting medium, ammonium persulfate is taken as an oxidizer, hydrochloric acid is taken as doping acid; the compositions in mixture ratio are: 0.5 to 10.0g of polyethyleneglycol, 30 to 150 ml of the homogeneous system of water and water-solubility organic solvent and 5 to 20 ml of hydrochloric acid, 2.0 to 20.0g of ammonium persulfate, and 2 to 10 ml of aniline, wherein, the volume content of the water-solubility organic solvent is between 0 and 100 percent. The method for making the polyaniline nanofiber has little environmental pollution, simple technique and high productivity and is easy to produce industrially; the obtained polyaniline nanofiber has good electroconductibility and thermal stability. The polyaniline nanofiber synthesized by the method can be applied to the fields such as an antistatic material, an electromagnetic screen material, a sensor, a secondary battery, a camouflage material, an anti-rot material and a nano functional device.

The invention discloses a repairing method for cadmium and zinc heavy metal contaminated soil. The method includes the following steps that firstly, a repairing agent is prepared, wherein zeolite powder, coal ash, zinc oxide, sodium silicate, hydroxyapatite, sugarcane ash, fowl manure, selenium oxide, cyclodextrin, nano-nickel powder, potassium citrate and portland cement are mixed and then ground; secondly, the contaminated soil is flatly laid on a plate, one third of the total weight of the repairing agent is scattered on the contaminated soil, vertical ploughing is conducted, and water is sprayed; thirdly, one third of the total weight of the repairing agent is scattered on the contaminated soil, vertical ploughing is conducted, a phosphoric acid aqueous solution is sprayed, and ploughing is conducted after standing; fourthly, the rest of the repairing agent is scattered on the contaminated soil; and fifthly, the upper surface of the contaminated soil is covered with a layer of protection film finally for repairing. After the repairing method is used for repairing for 10 hours, the removing rate of cadmium ions in the soil is higher than 89.3%, the removing rate of zinc ions is higher than 90.5%, and high removing efficiency and a good removing effect are shown.

The invention relates to an oil desulphurization method utilizing microwave driving. The invention is characterized in that the oil desulphurization method includes the following steps: desulphurization reaction auxiliary agent and emulsifier are added into oil, emulsification is carried out on the system, so as to obtain emulsion with oil and water uniformly dispersed; the emulsion reacts under the microwave radiation; after reaction is finished, extracting agent is added into the system in steps, and oil product after desulphurization is separated. Reaction auxiliary agent is mixed aqueous solution of peroxide and acid, the volume ratio of the two is 10-1:1, the volume ratio of auxiliary agent mixed aqueous solution and oil product is 1:5-30; the peroxide is 5-30% aqueous hydrogen peroxide solution, 2-10wt% of hydrogen peroxide or chlorine dioxide aqueous solution with the concentration of 2-10g/L; and the acid is formic acid, acetic acid, dicholoroacetic acid, trifluoroacetic acid, benzoic acid, citric acid, tartaric acid, ascirbuc acid, malic acid, hydrochloric acid or phosphoric acid.

An adsorbent for removing Cd from water is prepared from activated carbon and MnO2 crystal grains whose surface is used as the active center of adsorption and catalysis through washing activated carbon with deionized water, immersing in the solution of hydrochloric acid for 40-50 min, water wash, drying, proportionally mixing it with the solution of potassium permangnate, stirring, heating and cooling. It has high adsorptivity, selectivity and strength.

It is intended to provide a method for removing leukocytes whereby leukocytes can be removed at a higher level of performance in a short filtration time without clogging. A method comprising passing a leukocyte-containing liquid through a filter for removing leukocytes made of a nonwoven fabric having an average fiber diameter of from 0.3 to 3.0 μm and thus removing the leukocytes from the leukocyte-containing liquid to give a leukocyte-free liquid, characterized by using a nonwoven fabric having a formation index (y) of 50 or less corresponding to a thickness of 0.3 mm; use of a leukocyte removal filter therefor; and the leukocyte removal filter.

The invention relates to a method for treating waste water by microbial directional produced enzyme. The method comprises the following steps and technical conditions of: 1) preparation of nutrition liquid for culture: the nutrition liquid for culture comprises 1 to 10 percent of organic nutrition, 0.5 to 2 percent of A type inorganic nutrition, 0.1 to 0.5 percent of B type inorganic nutrition, 0.3 to 1.5 percent of trace elements and 1.5 to 7 percent of biological auxin; 2) preparation of culture liquid of activation microbes: the culture liquid consists of water and nutrition liquid required by spore state microbes and activated spore type microbes; 3) preparation of nutrition liquid for secondary metabolism: the nutrition liquid for the secondary metabolism comprises 0.5 to 2 percent of A type inorganic nutrition, 0.1 to 0.5 percent of B type inorganic nutrition, 0.3 to 1.5 percent of trace elements and 1.5 to 7 percent of biological auxin; 4) preparation of culture liquid of stimulated microbial secondary metabolism produced enzyme: the culture liquid consists of the culture liquid obtained in the second step, the nutrition liquid for secondary metabolism obtained in the third step, sterilized industrial waste water, sterilized dechlorination tap water; and 5) on-site continuous bacterial liquid addition. The method has the advantage that through the secondary metabolism produced enzyme, the system stability and the removal capability of a system on difficult-degradation organic matters are effectively improved.

The invention provides a treatment method for aged landfill leachate. The method specifically comprises the following steps: collecting the aged landfill leachate in an adjusting tank for adjustment, and causing the adjusted aged landfill leachate to enter a hydrolytic acidification tank for hydrolytic acidification; causing the hydrolytically-acidified leachate to flow from the hydrolytic acidification tank to a primary A/O<2> reaction tank for denitrification/carbon oxidation/nitrification reaction; causing the effluent of the primary A/O<2> reaction tank to flow into a secondary A/O reaction tank, and performing denitrification/nitrification reaction for further denitrification and decarburization; causing the effluent of the secondary A/O reaction tank to enter an ultrafiltration system for ultrafiltration; sequentially delivering permeate produced by the ultrafiltration into a nanofiltration system and a reverse osmosis system for advanced treatment; treating a concentrated solution produced by the nanofiltration system and the reverse osmosis system by adopting a concentrated solution system. According to the method, the concentration of pollutants in discharged water can be effectively reduced to ensure that the discharged water reaches standards.

A cleaning liquid for lithography, and a method for forming a wiring using the cleaning liquid for lithography. The cleaning liquid for includes an alkali or an acid, a solvent, and a silicon compound generating a silanol group through hydrolysis. The method forms a metal wiring layer by embedding a metal in an etching space formed in a low dielectric constant layer of a semiconductor multilayer laminate. In this method, the semiconductor multilayer laminate is cleaned using the cleaning liquid for lithography, after formation of the etching space.

The invention discloses a dyeing and finishing process for polyester interweaved fabric. The dyeing and finishing process comprises the following steps: S1) pre-treating: performing scouring and bleaching and enzyme washing treatment on the polyester interweaved fabric in turn; S2) pre-shaping: performing pre-shaping treatment on the polyester interweaved fabric; S3) dyeing: soaking the polyester interweaved fabric into a dye liquor at a liquor ratio of 1:(10-30), wherein the dye liquor comprises 1-3% of reactive dyes, 2-5% of rare-earth complex micro-encapsulation disperse dyes, 5-15g/L anhydrous sodium sulphate, 1.5-3.5g/L pH buffering agent, 0.1-0.3g/L organic phenol halide and 0.01-0.05g/L organic fluorinated surfactant; and S4) finishing: performing softening and flame-proof treatment on the fabric in turn. The dyeing and finishing process for polyester interweaved fabric, disclosed by the invention, not only can obviously improve the performances, such as, hand feel and elasticity, of the fabric but also can achieve the effects of uniform dyeing, high color fastness and abundant color and luster.

The invention discloses an ecological landfill simulation device for sectional type household garbage, comprising an upper end reactor, a hollow post and a lower end reactor which are connected with each other in the same axis line from top to bottom. The hollow post is in favor of the establishment of the environment of 'from aerobiosis to oxygen poor to anaerobic process' under the whole simulation environment, facilitates percolation liquid to have natural re-oxygenation when the percolation liquid drips in the hollow post, strengthens the nitrification and promotes the elimination of nitrogen in garbage dump bodies while methanogenesis is not interfered. With the operation of the simulation device, the nitrogen migration and transformation and the variation rule of nitrogen circulation function microbial community structure of the percolation liquid in artificial recharge process are identified and provide theoretical base for actual construction application. Meanwhile, after the disassembly of the hollow post in the invention, the upper end reactor and lower end reactor can be respectively assembled into general integral type garbage ecological landfill simulation devices, which are used for implementing garbage degradation research experiment in the artificial recharge process of the percolation liquid under general condition and greatly widens the application scope of the invention.

The invention relates to a method for extracting polysialic acid, belonging to biological engineering technical field. The invention uses the fermentation liquor of one Escherichia coli generating polysialic acid as material, filters and removes thallus, adds some solvents as sodium chloride and alcohol into supernatant to deposit polysialic acid, dissolves the polysialic acid deposits via deionized water, filters to remove modified protein, uses alkali prolease to treat filtrate, complexes deposits via cetyl pyridinium chloride (CPC) or cetyltrimethylammonium bromide (CTAB), and dissociates, uses over alcohol to deposit polysialic acid, dissolves the deposits via ultra-pure water, grades and purifies via chromatography column, collects and dialyzes eluent, cools and dries to obtain polysialic acid. The invention provides an effective polysialic acid separation purification method, which an obtain polysialic acid product with more than 97% purity, to be used as materials of drug and cosmetic product.

The invention relates to stannic oxide nanoparticles with high electrical property and a preparation method therefor. The preparation method comprises the following steps of 1) taking tin salt as the raw material, taking sodium, and micro particles that are soluble under an alkali condition as a template material, and dispersing the raw material and the template material into water and uniformly preparing into a mixed solution; 2) stirring the mixed solution at the room temperature for 6-24h and performing solid-liquid separation; 3) heating the solid obtained in the step 2) at a temperature of 400-700 DEG C for 2-8h; and 4) putting the powder obtained in the step 3) into an alkali solution to be fully reacted to remove the template material, then performing solid-liquid separation, and drying the obtained solid to obtain the stannic oxide nanoparticles with high electrical property.

The invention relates to a method for dewatering blue-green algae slurry by utilizing a horizontal spiral discharge sedimentary centrifuge, so as to change liquid phase algae slurry into a quasi solid phase algae cake, and enable the volume thereof to be greatly reduced. The invention belongs to the environmental protection technology field. The invention is characterized in that the blue-green algae slurry to be dewatered is pumped to centrifugal equipment, a flocculant is added to adjust the particle size of the solid substance, the blue-green algae residue is discharged through an unloading mouth after the centrifugal dewatering, and clear water is recycled through a pipeline. The centrifugal equipment adopts the horizontal spiral discharge sedimentary centrifuge. The horizontal spiral discharge sedimentary centrifuge utilizes the density difference of the quasi solid phase and the liquid phase of the suspension liquid to enable the solid phase substance to fast sedimentate on the wall of a rotary drum in the centrifugal force field produced by the high speed rotation of the rotary drum, so as to separate the solid and the liquid phases, the centrifuge continues to feed while continuously separating, and the separating medium and the residues are respectively discharged. The invention provides a practical and coordinate comprehensive method for the algal bloom treatment engineering in a lake, solves the problem that the transportation and the processing of the algae slurry are difficult, and improves the feasibility of the algae comprehensive utilization.

The invention discloses a pure natural decontaminating/sterilizing cleaning powder. The pure natural decontaminating/sterilizing cleaning powder is characterized by being prepared by evenly mixing the following natural plant powders in percentage by mass together: 45%-65% of tea oil and tea seed powder, 15%-40% of tea leaf and tea seed powder and 15%-25% of husk powder. For the problems and defects of the existing chemosynthetic cleaning agents, a pure natural decontaminating/sterilizing cleaning powder formed by mixing the basic raw material, namely the tea oil and tea seed powder having a decontaminating effect, with auxiliaries, namely the tea leaf and tea seed powder and the husk powder; the cleaning powder is remarkable in decontaminating capacity; when the pure natural decontaminating/sterilizing cleaning powder is used, basically no foam is generated so that the water resource can be saved; the components are all pure natural plant powders, and therefore the cleaning powder is harmless to a human body and the skin, has sterilizing and skin caring effects, and causes no pollution to the environment.

A novel multiple stage separator (MSS) vessel is disclosed wherein the vessel includes at least first and second stages or decks of separation cyclones, the stages arranged for operation in series. Each stage or deck includes an upper and lower tube sheet on which a plurality of cyclones are installed, solid particles in the gas stream being separated from the stream and dispensed between the tube sheets as the stream passes through each stage. The vessel has an inlet to receive a gas stream containing the particulates, and the flow travels typically downwardly, first passing through the first stage, then passing through at least a second stage. When implemented downstream of a fluid catalytic cracking (FCC) unit, the MSS has been found to remove a surprisingly increased amount of particulates over a conventional third stage separator (TSS), which contains a single stage separator.