328results about How to "Achieve the purpose of purification" patented technology

The invention discloses a method for removing heavy metal ions in sewage by nanometer hydroxylapatite, belonging to the technical field of heavy metal sewage treatment. The method comprises the following steps: adding nanometer grade hydroxylapatite powder in waste water containing heavy metal ions, wherein, the dosage of the hydroxylapatite powder is 6-8g/L; balancing the mixture for 12-48 hours at a temperature of 23-27 DEG C; and standing the mixture to remove the heavy metal ions in the waste water. The method uses the hydroxylapatite with relatively lower economic value to treat the heavy metal sewage, has high treatment efficiency, low treatment cost, strong field operability and small environment risk, and has heavy metal ion removal rate over 90 percent under conditions that concentration of Cd, Pb or Cu ions does not exceed 60mg/L.

The invention discloses a process for hydrofining coking crude benzene, which consists of a raw-materialnits preseparating unit, a hydrofining unit, a predistillation unit, an extractive distillation, an aromatic-hydrocarbon refining unit and a xylene distillation unit, wherein supplementary hydrogen needed in reaction is supplied from the outside; a reaction part in the hydrofining unit adopts three-stage hydrogenation; and the temperature of second-stage hydrogenation and third-stage hydrogenation is 230 to 290 DEG C and 220 to 315 DEG C respectively. The process has the advantages that the temperature adopted in both the second-stage hydrogenation and the third-stage hydrogenation is greatly lower than the reaction temperature of the prior process; the process effectively reduces benzene transformed into cyclohexane, reduces the secondary cracking reaction of the cyclohexane, reduces the loss of aromatic compound, and improves the retention rate of aromatic hydrocarbon which can reach over 99.6 percent; meanwhile, the three-stage hydrogenation adopted in the reaction part prolongs the process of hydrogenation and ensures that sulfur-containing nitrogen-containing organic compounds can also be transformed into inorganic sulfur or inorganic nitrogen compounds at a lower temperature, so that the aim of purification is achieved; and the total content of both sulfur and total in a hydrofined product is less than 1 ppm.

A composite nanoparticle as the magnetic core carried photocatalyst is composed of the magnetic Fe3O4 nanoparticle as core, SiO2 coated on the surface of said core, and TiO2 carried by said SiO2/FeO4 particle, and is prepared by chemical codepositing method. A method for using said photocatalyst to clean sewage features that the organic pollutants in sewage is deeply oxidized by it to generate CO2 and H2O. Its photocatalyzing apparatus is composed of high-pressure Hg lamp, quartz sleeve tube, bias electrode, condensing water inlet and outlet, gas distributing plate, said photocatalyst, ring reaction chamber, organic class container, sampling opening and aerating unit.

The invention relates to an air purification method which purifies air by using a two-stage or multi-stage chemical agent solution absorption method. The two-stage or multi-stage chemical agent solution absorption method comprises: firstly absorbing vitiated air entering indoors to a first-stage absorption chamber; absorbing organic matter harmful gas by an acidic potassium permanganate solution and filtering the harmful gas; then introducing the gas to a second-stage absorption chamber by a fan; absorbing harmful gas with weak acidity output from the first-stage absorption chamber by using alkaline liquor, and filtering the harmful gas; and blowing the harmful gas indoors, wherein the acidic potassium permanganate solution in the first-stage absorption chamber is a mixed aqueous solution of potassium permanganate and diluted acid, and in the mixed aqueous solution, the potassium permanganate accounts for 0.5-3% by weight and the diluted acid accounts for 3-5% by weight; the alkaline liquor in the second-stage absorption chamber is an aqueous solution of sodium hydroxide or calcium hydroxide with the content of alkaline liquor being 2-5%.

The invention relates to a method for purifying the burning smoke of arsenic mineral, especially the method for recycling As2O3 from the burning smokes of arsenic aurin mine, arsenic brass, and arsenopyrite, wherein the invention is characterized in that: it uses gas cooler, cyclone dust collector, statistic dust collector, atomizing cooler, pulse bag arsenic collector, ejection tubular washer, stuff tower washer, statistic defroster to treat the smoke to remove the dust, As2O3, SeO2, etc. The invention can produce continuously, with simple and stable operation.

The invention relates to a barium titanium iron series phhotocatalyst and a preparation method thereof, and belongs to the field of phhotocatalyst. In accordance with the chemical formula Bi5FeTi3O15, the invention adds titanium salt or titanate, malysite, bismuth salt into deionized water or acidic solution to dissolve and mix evenly, adds in aqueous alkali to produce settlings, and then adds the settlings into a water heat retort; after water heat reaction, the Bi5FeTi3O15 catalyst material is obtained after centrifugation, washing and drying. The invention reduces energy consumption of synthesization, and the product has even components, controllable grain size, quite high specific surface area, and good photocatalytic performance.

The invention discloses a sewage purifying agent, which consists of aluminum oxide powder, high-content silica powder, diatomite, diatomite culture medium, medical gypsum powder and quartzite powder. The sewage purifying agent prepared by the formulation is simple and convenient to use, has short treatment time, and can keep water clean for long time.

A torsion type fiber filter includes a shell body, a fiber beam in the shell body and fiber beam supporting bodies, a water inlet pipe and a water outlet pipe are arranged on the shell body, the interior of the shell body is provided with at least one porous filter cylinder, one end part of each porous filter cylinder is connected with a transmission shaft, the transmission shaft penetrates out of the shell body and is connected with a torsion drive device by a transmission mechanism. The outside of the transmission shaft and the outlet end of the porous filter cylinder are respectively surrounded by a circle of fiber beam supporting body, the fiber beam supporting bodies include wire hanging rods which are evenly arranged in a horizontal radial pattern, and the fiber wires are evenly fastened between the two circles of fiber beam supporting bodies, so as to form a fiber beam filter layer which surrounds the outer wall of the porous filter cylinder. The filtration area of the torsion type fiber filter is the outer surface area of the porous filter cylinder, so as to eliminate the limitation of the diameter on the filtration area, greatly improve the filtration speed and reduce the area coverage.

This invention discloses a water UV sterilizer using ultrasonic wave for cleaning. The UV sterilizer comprises an outer shell and a UV lamp. A water inlet and a water outlet are set on the outer shell. The spiral UV lamp is sealed at the center of the shell. Two electrodes are set on both sides of the UV lamp, and extend out of the shell. An ultrasonic wave energy converter is fixed at the inner wall of the shell. The ultrasonic wave energy converter is connected with an ultrasonic wave signal generator, which is connected with a power. When the UV lamp needs to be cleaned, water is introduced into the shell, and the ultrasonic wave signal generator is started, which generates high frequency vibrational signal. The high frequency signal is converted into mechanical vibration by the energy converter. Microbubbles are generated and break continuously in the water, and impact the UV lamp, thus cleaning the UV lamp. The invention can conveniently clean the UV lamp, and raise the sterilization efficiency.

The invention relates to a water soluble cationic polymer adsorption material in the biomedical material field and the application thereof, which contains the quaterisation reaction synthesis of natural polysaccharides with amino groups and hydroxyls and the derivatives thereof or chemosynthetic polymers. The invention is characterized in that the molecule of the polymer adsorption material has a structure in formula I: in the formula, R is selected from the natural polysaccharides with amino groups and hydroxyls and the derivatives thereof or the chemosynthetic polymers, the molecular weight of which is from 6 KD to 500 KD; X is selected from a C0 to C6 paraffinic chain with O atoms, N atoms or OH groups; R1, R2 and R3 are selected from a C1 to C4 alkyl group. After the adsorption material is dissolved in a medical dialysis solution, the material can be applied to a blood purification treatment for severe hepatitis patients. The invention has the advantages of removing protein-bound toxin and water soluble toxin molecule at the same time, low cost which is only about one tenth of that of a molecular adsorbent recirculating system and little nonspecific adsorption to plasma protein.

The invention discloses an ultraviolet (UV) automobile air sterilization purifier. The purifier comprises a shell, wherein the two ends of the shell are provided with an air inlet and an air outlet; the shell between the air inlet and the air outlet and staggered convex reinforcing ribs in the shell form an air duct in which a filter device and a UV sterilization device are also arranged; the filter device comprises one or more layers of coarse-efficiency filter screens, molecular sieves and medium-efficiency filter screens which are hermetically arranged in the air duct in turn; and the UV sterilization device comprises a short wave UV lamp tube. By using short wave UV and combining the filter device such as the molecular sieves and the like, the device filters circularly flowing air at the air outlet of an air conditioner in an automobile, removes peculiar smell, sterilizes the flowing air and the like, so the device has good sterilization and purification effect, can be safely used, has long service life, and is convenient and reliable.

The invention belongs to the technical field of novel functional nanometer material preparation method and discloses a nanometer wire purifying device and a purifying method. The invention comprises the following steps: adding a liquid medium into a first container; adding a nanometer wire to be purified under stirring, wherein the nanometer wire to be purified is a mixture of nanometer wires and nanometer particles; uniformly mixing to form a suspending liquid and injecting the suspending liquid into a tubular filter by a transfer pump; adjusting pressure differences between inlet and outlet ends of the tubular filter to make part of the liquid to leak from a side wall of the tubular filter and rest of the liquid to leak from the outlet of the tubular filter; collecting the liquid leaking from the side wall and the outlet of the tubular filter by a second container and a third container respectively; and filtering the liquid collected in the third container to obtain solids to obtain the purified nanometer wire. According to the invention, mesh diameter of the tubular filter is bigger than particle diameters of the nanometer particles but smaller than length of the nanometer wire. The purifying device and the purifying method of the invention are characterized by simple device, simple process, low cost, high product yield and the like. The purifying device and the purifying method of the invention can be used to obtain nanometer wires of high purity.

The invention belongs to the technical field of environmental protection, and particularly relates to a method for purifying water through a biological enzyme method, which comprises the following steps: (1) purifying with a physical purifying agent, filtering the purified water body, and removing the filter residue; and (2) adding biological enzymes into the water body subjected to the treatment in the step (1), wherein the weight ratio of the biological enzymes to waste water is 1:(160-280). When water is purified through the method, physical flocculating settling is performed first to remove the settled impurities, and the water is further treated through the biological enzymes; and the multiple biological enzymes are combined to coact on the contaminated water body, so that the pH value, chroma, COD (chemical oxygen demand), BOD (biochemical oxygen demand) 5, sulfide content, nitride content and organic phosphorus content of the water body are all reduced within specified standards, thereby achieving the purpose of purifying the water body.

The invention provides a method and device for removing harmful gas through discharging plasmas and belongs to the technical field of atmosphere pollution control and environmental protection. The method includes the processing processes that harmful gas is introduced into the device, the device is internally provided with a plurality of sets of positive-negative (or positive-earth)-alternative electrode pairs which are communicated with a high-voltage power source, absorption liquid drops out of an absorption liquid sprayer make contact with electrodes, so that positive electrodes and negative electrodes are in instant breakover and discharge to make surrounding gas be ionized, gas liquid composed of high-energy electrons, atoms, free radicals and the like can make contact with a discharging plasma area, when the harmful gas passes through the discharging plasma area, the harmful gas in air flow is oxidized, decomposed and removed out of the air flow, and the sprayed absorption liquid is collected by an absorption liquid recycling water pool on the lower portion of the device and then recycled through an absorption liquid recycling system.

The invention discloses a device for purifying paper-making waste gas and an operation method of the device. Through the improved device for purifying the paper-making waste gas, the dispersed waste gas can be in full contact with treatment fluid, so that the purifying efficiency is improve; on the other hand, multi-stage filtration adsorption is adopted so that purification and filtration of thewaste gas can be achieved well; on the whole, the device for purifying the paper-making waste gas has the advantages of a simple structure, convenient use and maintenance, thorough purification and convenient treatment of the waste gas; meanwhile, another purpose of the arrangement of the multi-stage filtration adsorption unit is that the ascending speed of the gas can be slowed down through the multi-layer adsorption, so that the gas stays inside the housing of the device slightly, and spraying and adsorption are achieved fully.

The invention discloses an air purification device and a purification method, and belongs to the technical field of air purification. By the aid of the electrolytic action, the piezoelectric effect and the pyroelectric effect of tourmaline, particularly, by the aid of the piezoelectric effect and the pyroelectric effect of the tourmaline, the tourmaline can release a large number of negative ions by the piezoelectric effect and the pyroelectric effect generated under flow of constant temperature water, so that air is purified. Compared with a pure tourmaline material air purification method, the method has the advantages of high air purification efficiency, wide application scope, fine effect and the like. Besides, PM2.5 (particulate matters 2.5) can be degraded, harmful gas and undesirable odor are eliminated, bacteria are resisted, humidification is realized, human metabolism is promoted, human immunity is improved, physical and psychological health of humans is protected, and the air purification device has the advantages of safety, environmental protection, non-toxicity, no odor, no radiation, long service life, convenience in use and the like.

The invention relates to a method and a device for rapidly manufacturing a pulverized coal polished section by ultrasonic defoaming, belonging to a method and a device for manufacturing pulverized coal polished sections. The device for manufacturing the pulverized coal polished section comprises an ultrasonic defoaming device and a polished section molding device, wherein an ultrasonic generator of the ultrasonic defoaming device is connected with a transducer by a lead; the transducer is connected onto a base by a heightening screw; the base is connected with a bottom seat; the upper end of the bottom seat is provided with an objective table; the polished section molding device is arranged on the objective table; a tool head is arranged above the objective table and is connected with the lower end of the transducer; the ultrasonic generator is provided with a display screen, frequency modulation rotary knobs and an inserting seat; two pistons of the polished section molding device can make free motion in a mould; the mould is in a cylinder shape; a push rod is arranged at one end of one piston, and one piston head is provided with a micro-pore. When the pulverized coal polished section is manufactured, bubbles of mixed liquid can be removed by the ultrasonic defoaming device, and the pulverized coal polished section is finally cleaned by ultrasonic waves. The pulverized coal polished section is manufactured by the mould, so that the waste of coal samples can be reduced, and short time and low cost are consumed.

The invention relates to the technical field of water treatment, particularly a microbial water purifying agent. The microbial water purifying agent is prepared from a culture medium and a liquid microbial inoculant. The culture medium is composed of the following components in parts by mass: 50-70 parts of rice hull, 8-15 parts of bagasse, 15-30 parts of wheat bran, 5-10 parts of bean pulp, 5-15 parts of peanut pulp, 2-6 parts of sodium dihydrogen phosphate, 0.2-0.8 part of sodium chloride, 0.5-1.2 parts of trace element solution, 3-8 parts of rock powder, 5-20 parts of glucose, 2-6 parts of ammonium chloride solution, 1.2-5.8 parts of beef leaching substance and 2-6 parts of yeast extract. By adopting the combination of multiple bacteria and using mixed fermentation, the microbial water purifying agent can well remove nitrogen, phosphorus and other eutrophic substances in water, can effectively inhibit other harmful bacteria in the water body, achieves the effects of preventing diseases and enhancing the survival percent, and achieves the goal of water purification.

The invention discloses a fully-automatic cleaning instrument for RTFO (rolling thin film oven) sample-containing bottles. An annular sound wave washing tank and a sample-containing bottle fixing andcleaning device are arranged in a cleaning instrument box; an ultrasonic generator is arranged in the annular sound wave washing tank, asphalt residues can be dispersed in a cleaning solution by soundwave vibration, asphalt is emulsified, solid particles are separated in time, cleaning brushes are moved towards the inner wall by an upper support bracket, a certain pressure is applied to the innerwall, and stubborn stains can be cleaned by cooperation with ultrasonic wave vibration and high temperature effects in the rotating process of hard brush edges; the residual cleaning solution can betreated by soft brush edges, manual supplementary wiping after cleaning is avoided, and time and vigor of a lab assistant are saved; cleaning parameters of the sample-containing bottle fixing and cleaning device is controlled by a controller, and automatic cleaning can be realized; meanwhile, the multiple sample-containing bottles can be cleaned simultaneously, cleaning efficiency is improved, bottle bodies are fixed by sample-containing bottle chucks, and the problem of rotation of the bottle bodies in the cleaning process is effectively solved.