46results about How to "Efficient and thorough removal" patented technology

Devices and methods for removal of calculus (including for example, kidney stones) are disclosed. In an embodiment, a device for removal of kidney stones includes a substantially sealable pouch that can be inserted into the kidney for capturing a kidney stone. The pouch is also designed to permit fragmentation of the kidney stone inside the pouch, while preventing kidney stone fragments from escaping from the pouch. As a result, the likelihood of dispersing stone fragments during fragmentation of a large stone is greatly lessened.

The invention discloses a method for removing cells from a human amnion. The method is characterized by comprising the following steps of: obtaining a clean semitransparent amnion, rinsing the semitransparent amnion by using a PBS (Phosphate Buffer Solution), soaking the semitransparent amnion in a comprehensive PBS liquid, shocking, rinsing the amnion by using the PBS after the amnion is taken out, successively soaking the amnion in steapsin / PBS liquid and deoxyribonuclease / PBS liquid for treatment, rinsing the amnion by using double-antibody / PBS liquid, taking out the decellularized amnion and putting the decellularized amnion in the PBS for preservation and standby. The method has the advantages that the cells are removed from the amnion in a manner that a surfactant is combined with steapsin and deoxyribonuclease, the cells can be prompted to be completely and efficiently removed from the amnion due to the combined use of the steapsin and the deoxyribonuclease, and meanwhile, the extracellular matrix is reserved to the maximum and is enabled to be free from damage.

The invention relates to the propagation production of cane seedlings, and provides a method for removing cane perennial root dwarfing germs and rapidly propagating healthy cane seedlings, which comprises the following steps: little amount of original seeds are treated by hot water, stem tips which are detected to be feminine by the regenerated plantlet by carrying out speckle enzyme marker immune test (DB-EIA) is taken as an explant, healthy seedlings are produced by induction culture, secondary propagation culture, root-promoting culture, temporary planting and second-stage or third-stage nursery propagation-extension; furthermore, the disinfection of seed-cutting tools (cane knives) is paid attention to in the nursery propagation-extension, before the seedlings are used as seeds for large field production after coming out from nursery, cane stem juice is extracted by sampling, and RSD virus is detected by using the DB-EIA, thus guaranteeing the providing of qualified seedlings. Themethod has the advantages that: dwarfing disease pathogenic bacteria of the perennial root of the cane seedling can be thoroughly removed, annually propagation coefficient can reach as high as more than 10 thousand times, furthermore, the seedling has no variation, has the advantages of being fast, high-efficient and safe, and is suitable for the industrialized and standardized production of the cane healthy seedlings on scale.

The invention belongs to the technical field of microorganisms and environmental protection, and in particular relates to a petroleum-degrading bacterium capable of degrading heavy crude oil and its separation method and application. The petroleum-degrading bacterium belongs to the genus Ochrobactrum sp. It was preserved in the General Microorganism Center (CGMCC) of the China Microbiological Culture Collection Management Committee (CGMCC) on May 7, 2010. The strain preservation number is CGMCCNo.15739; Crude oil is the only carbon source for growth, and degrades and removes petroleum pollutants, without artificially adding energy, carbon sources, heat sources, etc., with low process requirements, low application costs, and no secondary pollution; heavy crude oil can be degraded within 7 days The degradation rate can reach more than 20%, the degradation efficiency is high, and the petroleum pollutants in the environment can be rapidly degraded, used for the bioremediation of petroleum-contaminated soil or water bodies, and can also be used to prepare composite bacterial agents with other strains for use in Efficient and thorough removal of petroleum pollutants in the environment.

The invention discloses a cleaning agent and a treatment method for oil stains on the surface of artificial joint wax models, belonging to the technical field of wax model cleaning. The cleaning agent is formed by mixing a limonene solution with a mass concentration of 85%-95% and 2-phenylthioethanol with a mass concentration of more than 95%, and the volume ratio of the limonene solution to 2-phenylthioethanol is 2-2.2 : 2.8‑3. After using the cleaning agent and treatment method provided by the present invention to clean the artificial joint wax mold, the surface of the wax piece has no oil stains, no corrosion marks, no need to use clean water to rinse, does not contain harmful substances, and will not cause harm to the human body, and the waste liquid after cleaning It can also be recycled and reused to clean the handwriting left by the oil-based pen after writing.

Disclosed are printed circuit board high-concentration organic wastewater and an acidic wastewater treating process. The acidic wastewater treating process mainly includes a plurality of steps, namely, acidifying and filter-pressing, iron-carbon micro-electrolysis, Fenton oxidation and flocculent settling, SBR bio-treatment and the like. By the process, organic matters in water can be removed efficiently and thoroughly, and the water is ensured to be capable of reaching the standard and discharged after being mixed with other wastewater through a comprehensive wastewater treating system.

The invention discloses a power preparation device for a new energy automobile. The power preparation device comprises a hydrogen production box, wherein a plurality of supporting legs are arranged atthe bottom of the hydrogen production box; a gas outlet pipe is arranged at the top of the hydrogen production box; the hydrogen production box is internally provided with a steam cavity; a hydrogenproduction mechanism is arranged above the steam cavity; a filtering screen is arranged above the hydrogen production mechanism; a gas collection mechanism is arranged at the top of the hydrogen production box; all the arranged mechanisms can be used for effectively preparing hydrogen gas by utilizing reaction between carbon and water, impurities in the gas can be effectively removed, and the preparation quality is improved; meanwhile, activated carbon can be rapidly replaced and mounted, the time for replacing and mounting the activated carbon is shortened, and the hydrogen production efficiency of the device is improved; the filtering screen can be used for removing impurities including ash and the like, generated by the carbon mixed in the gas, and purification of the hydrogen gas is not influenced.

The invention relates to a high-efficiency multifunctional remover and a preparation method thereof. The remover is made of the following components according to the mass percentage: sodium hypochlorite: 99% to 99.5%, potassium permanganate: 0.05% to 0.2%, and potassium ferrate : 0.15% ~ 0.3%, polyferric sulfate: 0.3% ~ 0.5%. The preparation method is as follows: add 99% to 99.5% sodium hypochlorite in the reaction kettle, stir until the sodium hypochlorite dissolves, add 0.05% to 0.2% potassium permanganate, stir for 0.5 to 1 hour, until completely dissolved, add 0.15% ~0.3% potassium ferrate, stir for 0.5-1 hour, finally add 0.3%-0.5% polyferric sulfate, stir for 0.5-1 hour until completely dissolved to obtain a purple-red liquid product, the above components are mass percentages. The beneficial effects of the present invention are: through the interaction of three strong oxidants and the different timeliness of organic matter, combined with the flocculation of polyferric sulfate, the removal rate of organic pollutants in water can reach up to 95%, and the cost is low. Only 1 / 10 of ordinary remover, high treatment efficiency and low cost.

The invention discloses a core-shell structure cellular material for removing methanal and a preparation method of the core-shell structure cellular material. The core-shell structure cellular material for removing the methanal is prepared from the following components according to a weight ratio: 50 to 70 percent of clay, 10 to 15 percent of inorganic salt, 1 to 5 percent of aerogel, 5 to 9 percent of sepiolite fiber, 1 to 15 percent of molecular sieve and 1 to 8 percent of glue. The core-shell structure cellular material for removing the methanal is prepared by four production links including material mixing, solution dipping, dry granulation and finishing activation. The new core-shell structure material with coexisting multi-stage pore canals consists of an inner core formed by a composite strong oxidant and a shell layer formed by inorganic fiber, and the new material has the advantages of the performance of efficiently and thoroughly oxidating to remove indoor methanal pollutants, simple production links, lower preparation cost and wide popularization and application prospect.

The invention discloses a vacuum brazing device which improves the brazing performance and quality of an aluminum and aluminum alloy workpiece and a method using the device to braze an aluminum alloy workpiece. The vacuum brazing device comprises a magnesium vapor generating chamber, a brazing chamber and a magnesium collecting chamber, wherein the magnesium vapor generating chamber, the brazing chamber and the magnesium collecting chamber are hermetically communicated with each other through a pipe; and the magnesium vapor generating chamber is internally provided with an electric heating device and the magnesium collecting chamber is internally provided with a collecting copper net with a cooling water pipeline. During brazing, pure magnesium is placed on the electric heating device, the workpiece and the brazing filler metal are placed in the brazing chamber, and then the vacuum brazing device is placed into a vacuum brazing furnace integrally; the oxide film on the surface of the aluminum alloy workpiece is thoroughly removed by flow of magnesium vapor according to different vapor pressures of magnesium in the three chambers, so that the brazing deficiencies such as crack, oxide inclusion, insufficient brazing and non-brazing and the like in the brazing position of the aluminum alloy workpiece in a complex structure can be strictly controlled, thereby, improving the brazing performance and quality of the aluminum alloy brazing workpiece to a great extent.

A method for recycling N-methylpyrrolidone (NMP) from a gas by utilizing a high boiling point solvent, comprising: spraying a high boiling point solvent into an absorption apparatus from the top of the absorption apparatus, pumping an NMP-containing gas into the absorption apparatus from either the top or bottom of the absorption apparatus, allowing the gas and liquid phases to fully come into contact, removing NMP or NMP and water from the gas, thus acquiring a purified gas and a mixture containing NMP or containing NMP and water; and vacuum distilling the mixture containing NMP or containing NMP and water, thus separately recycling NMP and the high boiling point solvent. Furthermore, the recycled NMP and high boiling point solvent can be reused. The method allows highly efficient recycling of NMP in the gas and implements recycling and reuse of NMP and of the high boiling point solvent.