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48results about How to "Good environmental tolerance" patented technology

Preparation method of polymer weak gel deep profile control agent

The invention relates to a preparation method of a polymer weak gel deep profile control agent. The preparation method comprises the following steps of preparing sodium carboxymethyl cellulose and distilled water into sodium carboxymethyl cellulose water solution of which the mass percentage is 1%-2%; adding acrylamide of which the mass is 2-8 times as great as that of the sodium carboxymethyl cellulose into the sodium carboxymethyl cellulose water solution, and then adding a cross-linking agent which accounts for 0.01%-2% of the total weight of the sodium carboxymethyl cellulose and the acrylamide; enabling nitrogen to enter into a closed system and isolating the air, and adding an initiating agent which accounts for 1%-2% of the total mass of the sodium carboxymethyl cellulose and the acrylamide; and discharging after carrying out constant-temperature reaction for 4-12 hours under the temperature of 30-60 DEG C. According to the preparation method disclosed by the invention, the acrylamide is grafted to the sodium carboxymethyl cellulose, polymer weal gel with a mesh structure is formed under the action of the initiating agent and the cross-linking agent, and a polymer weak gel system integrates the advantages of the sodium carboxymethyl cellulose and the acrylamide.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

Flexible photovoltaic integrated power supply system

The invention discloses a flexible photovoltaic integrated power supply system. The power supply system comprises a physical power supply, a chemical power supply and a power supply controller. Solar energy is converted into electric energy through the physical power supply. A flexible thin film solar battery module is adopted and comprises an amorphous silicon thin film solar battery module, a microcrystalline silicon thin film solar battery module, an amorphous silicon-germanium thin film solar battery module, and a laminated solar battery module consisting of the amorphous silicon thin film solar battery module, the microcrystalline silicon thin film solar battery module and the amorphous silicon-germanium thin film solar battery module, or a copper-indium-gallium-selenium thin film solar battery module. The chemical power supply adopts a storage battery component which comprises a nickel-cadmium battery module, a nickel-hydrogen battery module, a lithium ion battery module, an alkaline-manganese charging battery module or a lead-acid storage battery module. The power supply controller is a solar power supply single output controller with the model of V-ST10, is respectively connected with the physical power supply, the chemical power supply and the load, and is used for regulating and controlling the physical power supply and the chemical power supply. The flexible photovoltaic integrated power supply system provided by the invention has the advantages of good flexibility, light weight, high intensity, good environment tolerance and the like.
Owner:SHANGHAI INST OF SPACE POWER SOURCES

Method for remedying heavy metal polluted soil by inducing calcium carbonate precipitation through microorganisms

The invention discloses a method for remedying heavy metal polluted soil by inducing calcium carbonate precipitation through microorganisms, and belongs to the technical field of geotechnical engineering. The method comprises the following steps: step 1, preparing a bacterial liquid and a cementing liquid; step 2, detecting the concentration of heavy metal pollutants in a suspected contaminated site; step 3, remedying the heavy metal polluted soil; and step 4, detecting the remedying effect. A slurry mixing mode is adopted, the cementing liquid, the bacterial liquid and the heavy metal pollutants can be in full contact, the operation is easy, the cost is low, the remediation uniformity is good, secondary pollution is avoided, and remedied soil can serve as a roadbed filler.
Owner:HEFEI UNIV OF TECH

Retrofocus type optical system

Provided is a retrofocus type optical system including a lens or a layer made of a material satisfying the following conditions of the Abbe constant νd and partial dispersion ratios θgd and θgF, νd<30, θgd<−3.333×10−3·νd+1.40, θgF<−2.615−10−3·νd+0.67. In the case that this layer is disposed on the front side of the aperture stop, the layer is designed to have a positive refractive power, and in the case that the layer is disposed on the rear side of the aperture stop, the layer is designed to have a negative refractive index.
Owner:CANON KK

Vibrio alginolyticus bacteriophage and application thereof to prevention of sea cucumber disease

The invention discloses a vibrio alginolyticus bacteriophage and application thereof to prevention of sea cucumber disease, belonging to the technical field of biology. The bacteriophage is collected in the China General Microbiological Culture Collection Center on March 11, 2014 and has a collection number of CGMCC No.8792 and a classification name of Vibrio alginolyticus bacteriophage; the vibrio alginolyticus bacteriophage is a short-tailed phage, has a head diameter being 50 nanometers and tail length being 15 nanometers, and has no shrinkage tail sheath and six short tail fibers. The bacteriophage is used for preventing infection and pollution caused by corresponding vibrio alginolyticus in the culturing process of sea cucumbers, and the potency is more than or equal to 10<5>PFU / mL. The bacteriophage has an inhibiting function on vibrio alginolyticus, and no vibrio alginolyticus-resistant strain is produced within 12 hours; the incubation period lasts for 28 minutes, the burse size is 79, and two orders of magnitude are lowered within 14 days in a seawater culturing environment.
Owner:DALIAN UNIV OF TECH

Application of novel nitration inhibitor and polyacid in processing inorganic fertilizer containing nitration inhibitor

The use of inorganic or organic poly acids is claimed for treating mineral fertilisers containing a nitrification inhibitor. The use of compounds of formula (I) is claimed as nitrification inhibitors. R1 = H, halo or 1-4C alkyl; R2 = 1-4C alkyl; R3 = H or CH2OH, and when R3 = H, the compound may be converted to a phosphoric acid salt. A mineral fertiliser containing a poly acid and optionally (I) is also claimed. 3,4-dimethylpyrazole (Ia), 4-chloro-3-methyl-pyrazole (Ib), N-hydroxymethyl-3,4-dimethylpyrazole (Ic), N-hydroxymethyl-4-chloro-3 -methylpyrazole (Id), acid addition salts of (Ic) and (Id), and mixtures of two or more of (Ia)-(d) are new. -
Owner:BASF SE

Anodic oxidation coloring method free of introducing of elements inconsistent with titanium and titanium alloy base materials

The invention relates to the field of titanium and titanium alloy, in particular to an anodic oxidation coloring method free of introducing of elements inconsistent with titanium and titanium alloy base materials. The method comprises the following steps that 1, titanium and titanium alloy are ultrasonically cleaned in a Micro-90 cleaning solution; 2, the cleaned titanium and titanium alloy are put in an acid pickling solution to be treated; 3, the titanium and titanium alloy are washed thoroughly with purified water; 4, the cleaned titanium and titanium alloy are clamped on a specific hanging tool, and the hanging tool is put in an anodic oxidation coloring solution to be oxidized; 5, the titanium and titanium alloy subjected to anodic oxidation coloring is washed thoroughly with purified water; and 6, the thoroughly washed titanium and titanium alloy are blow-dried and then put in a clean transfer box to be transferred. According to the anodic oxidation coloring method, the safety of implantation medical instruments is guaranteed to the largest extent, meanwhile, titanium and titanium alloy with various surface states are subjected to anodic oxidation treatment through an improved acid pickling technology, and color consistency is guaranteed.
Owner:CHANGZHOU ORTHMED MEDICAL INSTR

Solar energy air heat-collecting heat-preserving decorative wall plate

A decorative heat-preserved wall board with solar and air heat collection is provided, which comprises a back board, a panel, a rim and an inner cavity. The back board is a shallow box-like heat-preservation sandwich board, an air inlet is provided at the lower part of the box bottom, an air outlet is provided at the upper part of the box bottom, at the air outlet, a solar fan is installed. The power supply of the fan is a solar photovoltaic power generating board at inner side at front of the panel. The panel is a flat glass. Between the panel and the back board, the rim is connected. On the rim, some concave ports for connecting are provided. In the inner cavity enclosed by the panel, back board and the rim, a corrugated heat-absorbing board is fixedly connected on the inner bottom side of the shallow box-like heat-preservation sandwich board. The outer surface of the corrugated heat-absorbing board is provided with a heat-absorbing coating. The inner wall of the corrugated heat-absorbing board is connected with heat-exchanging fins. The inside of the corrugated heat-absorbing board forms a heat-exchanging cavity, which is communicated with the air inlet and the air outlet. The invention greatly reduces the cost of the wall board integrating solar with a building, is easy to maintain, improves the service life and is easy to spread and apply in large area.
Owner:杜德利

A phage of Vibrio alginolyticus and its application in disease prevention of sea cucumbers

The invention discloses a vibrio alginolyticus bacteriophage and application thereof to prevention of sea cucumber disease, belonging to the technical field of biology. The bacteriophage is collected in the China General Microbiological Culture Collection Center on March 11, 2014 and has a collection number of CGMCC No.8792 and a classification name of Vibrio alginolyticus bacteriophage; the vibrio alginolyticus bacteriophage is a short-tailed phage, has a head diameter being 50 nanometers and tail length being 15 nanometers, and has no shrinkage tail sheath and six short tail fibers. The bacteriophage is used for preventing infection and pollution caused by corresponding vibrio alginolyticus in the culturing process of sea cucumbers, and the potency is more than or equal to 10<5>PFU / mL. The bacteriophage has an inhibiting function on vibrio alginolyticus, and no vibrio alginolyticus-resistant strain is produced within 12 hours; the incubation period lasts for 28 minutes, the burse size is 79, and two orders of magnitude are lowered within 14 days in a seawater culturing environment.
Owner:DALIAN UNIV OF TECH

Illuminator with adjustable colors

A light-emitting device in colour adjustable type includes an organic light-emitting diode and a planar colour conversion layer. The planar colour layer formed by a certain dosage of fluorescent materials is coated or deposited on the organic light-emitting diode in planar manner and micro-light colour mixing effect of granules in the fluorescent material is used to change short wavelength light-emitting spectrum generated by the organic light-emitting diode into a long wavelength light-emitting spectrum for changing the light-emitting colour of it so that the organic light-emitting diode canadjust its light-emitting colour by using the planar colour conversion layer formed with different fluorescent materials.
Owner:RITDISPLAY

Nickel, cobalt, lithium manganate core-shell material gel and preparation method therefor

The invention provides nickel, cobalt, lithium manganate core-shell material gel and a preparation method therefor. A nickel, cobalt, lithium manganate positive electrode material adopts a spherical-like core-shell structure doped with a little amount of metal elements, wherein the content of nickel in an inner layer is high, and the content of nickel in the outer layer is relatively low; a lithium source solution and a chelating agent solution are dropwise added to a metal salt solution I in sequence to form gel I; the gel is subjected to water bath heating to obtain a gelation precursor I; next, the gelation precursor is subjected to smashing and spheroidizing technologies to prepare a spheroidized precursor I; the lithium source solution and the chelating agent solution are dropwise added to a metal salt solution II in sequence to be subjected to gel treatment, sol treatment and smashing to obtain a precursor II; next, by virtue of the spheroidizing technology and by taking the spheroidized precursor I as the core, the precursor II is subjected to surface coating to obtain the final spherical core-shell precursor; and the spherical core-shell precursor is subjected to high-temperature sintering in an oxygen atmosphere to obtain the doped core-shell material. By virtue of the gel method, the main elements and the doped elements can be dispersed uniformly; and meanwhile, by virtue of coating of the outer layer low-nickel element, the tolerance of the material in the air can be improved, thereby greatly improving the rate, cycling and safety performance of the ternary material.
Owner:SHANDONG GOLDENCELL ELECTRONICS TECH

Lithium ion battery monitoring multifunctional fiber sensor, system with sensor and manufacturing method of sensor

The invention discloses a lithium ion battery monitoring multifunctional fiber sensor, a system with the sensor and a manufacturing method of the sensor. The multifunctional fiber sensor comprises a charged state sensor and a temperature sensor in serial connection, each of the charged state sensor and the temperature sensor uses a multi-mode fiber as a substrate, and each multi-mode fiber includes a silica core, a fluorine-doped cladding and a acrylic ester coating from inside to outside; the multi-mode fiber is etched in hydrofluoric acid in a wet method, so that the fluorine-doped claddingis thinned to form a fiber evanescent wave sensor, namely the charged state sensor; and the temperature sensor is connected in series to the back end of the charged state sensor, and the fluorine-doped cladding of the multi-mode fiber of the temperature sensor is etched and thinned and coated with a fluorescent layer with PMMA as the matrix. Two important parameters, namely temperature and chargedstate, of the lithium ion battery can be measured at the same time without mutual interference, and the sensitivity is high.
Owner:HANGZHOU DIANZI UNIV

Metal capacitor and manufacturing method thereof

A metal capacitor in which an electric conductivity is significantly improved by applying a metal material for an electrolyte and a manufacturing method thereof is provided. The capacitor includes a metal member comprising a groove forming portion where a plurality of grooves is formed, an electrode withdrawing portion formed on the groove forming portion, and a sealing portion; a metal oxide layer being formed on the metal member; an insulating layer being formed on the metal member to expose the electrode withdrawing portion of the metal member; a plurality of main electrode layers, each main electrode layer being formed on the metal oxide layer that is formed on the groove forming portion of the metal member; and a conductive connecting layer being formed on the plurality of main electrode layers and the insulating layer to face the electrode withdrawing portion of the metal member and connect the plurality of main electrode layers, wherein a lead terminal is connected to the electrode withdrawing portion of the metal member and each of the main electrode layers.
Owner:KOREA JCC CO +1

Method for preparing zirconium oxide porcelain coating on self assembled functional organosilane single layer film

A process for preparing the zirconium oxide ceramic film on the surface of functional self-assembled organic silane film includes such steps as preparing said self-assembled organic silane film containing S on the surface of monosilicon or glass chip, oxidizing the S-contained radicals on the surface of film to become sulfo radicals, and preparing zirconium oxide ceramic film in the aqueous solution by chemical adsorption. Its advantages are low cost, low poison, high density, and uniformly, large area, and high antiwear nature.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Flexible electromagnetic shielding film and preparation method thereof

The invention designs a flexible electromagnetic shielding film and a preparation method thereof. The preparation method of the flexible electromagnetic shielding film comprises the following steps: inducing self-crosslinking or flocculation of one or more metal nanowires of gold, silver, copper, nickel and zinc to prepare metal-based gel; S2, compressing the aerogel prepared in step S1 into a thin film, performing surface local enhancement through chemical vapor treatment or light irradiation, and then performing cutting, folding or shaping; and S3, attaching an aerogel thin film prepared in step S2 to a flexible substrate in a covering mode, so as to prepare the flexible electromagnetic shielding film. The prepared flexible stretchable electromagnetic shielding film is small in thickness, high in conductivity, good in flexibility, good in machinability and excellent in electromagnetic shielding performance, and can shield 99.9999999% of electromagnetic waves within the frequency of 2-18 GHz.
Owner:南京恒电先进微波技术研究院有限公司 +1

A kind of preparation method of polymer weak gel deep profile control agent

The invention relates to a preparation method of a polymer weak gel deep profile control agent. The preparation method comprises the following steps of preparing sodium carboxymethyl cellulose and distilled water into sodium carboxymethyl cellulose water solution of which the mass percentage is 1%-2%; adding acrylamide of which the mass is 2-8 times as great as that of the sodium carboxymethyl cellulose into the sodium carboxymethyl cellulose water solution, and then adding a cross-linking agent which accounts for 0.01%-2% of the total weight of the sodium carboxymethyl cellulose and the acrylamide; enabling nitrogen to enter into a closed system and isolating the air, and adding an initiating agent which accounts for 1%-2% of the total mass of the sodium carboxymethyl cellulose and the acrylamide; and discharging after carrying out constant-temperature reaction for 4-12 hours under the temperature of 30-60 DEG C. According to the preparation method disclosed by the invention, the acrylamide is grafted to the sodium carboxymethyl cellulose, polymer weal gel with a mesh structure is formed under the action of the initiating agent and the cross-linking agent, and a polymer weak gel system integrates the advantages of the sodium carboxymethyl cellulose and the acrylamide.
Owner:WUHAN INSTITUTE OF TECHNOLOGY

K1-type electrical connector assembly of mineral insulated cable for nuclear power

The invention relates to a K1-type electrical connector assembly of a mineral insulated cable for nuclear power, and the assembly comprises a cable assembly, and a plug and a socket which are respectively spliced with two ends of the cable assembly. The cable assembly is characterized in that the cable assembly comprises a mineral cable, a corrugated pipe wrapped outside the mineral cable, a positioning plate for fixing the mineral cable, and a stainless steel pipe welded with the positioning plate; the stainless steel pipe is internally provided with a glue pouring area and a switching jack contact piece; the switching jack contact piece is of a double-end jack structure, one end of the switching jack contact piece is electrically connected with the mineral cable core wire through a barewire, and the other end is plugged with the plug or the socket; the plug comprises a connecting nut, a spline housing, an insulator part, and a glass sintering part which is in butt joint with the double-end jack contact part; the socket is of an integrated structure formed by sintering a socket shell, a glass cake II and a double-end contact pin contact piece II through glass. The assembly provided by the invention is resistant to irradiation and aging and long in service life, and it is guaranteed that the product can still be used after being subjected to severe accident working conditionswhile the using requirements of a nuclear-grade K1-type electrical connector are met.
Owner:CHINA AVIATION OPTICAL-ELECTRICAL TECH CO LTD

Anionic polypeptide carboxylated biological nano magnetic bead and preparation method thereof

The invention provides an anionic polypeptide carboxylated biological nano magnetic bead, which is formed by connecting an anionic polypeptide polymer onto membrane protein of a biological nano magnetic bead through a flexible linker to carry out fusion expression; an amino acid residue of the flexible linker is GCVA(DLGGV)2GVC(GA)3MADEGAG; a specific anionic polypeptide structure is shown on thesurface of the biological nano magnetic bead; the quantity of provided functional groups serving as modification sites is large; the amount of bound antibodies is large, and the magnetic bead is highin bioactivity, higher in specificity and high in practicability.
Owner:BEIJING GUO KE RONG ZHI BIOTECH CO LTD

Method for preparing zirconium oxide porcelain coating on self assembled functional organosilane single layer film

A process for preparing the zirconium oxide ceramic film on the surface of functional self-assembled organic silane film includes such steps as preparing said self-assembled organic silane film containing S on the surface of monosilicon or glass chip, oxidizing the S-contained radicals on the surface of film to become sulfo radicals, and preparing zirconium oxide ceramic film in the aqueous solution by chemical adsorption. Its advantages are low cost, low poison, high density, and uniformly, large area, and high antiwear nature.
Owner:LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Photosensitive ink material and preparation method thereof

The invention discloses a photosensitive ink material and a technological process for applying the prepared photosensitive ink material to printing. The photosensitive ink material is prepared from components in percentage by weight as follows: 30%-60% of photosensitive resin, 30%-50% of pigments, 4%-8% of a photoinitiator, 5%-10% of a diluent and 1%-5% of an aid. The photosensitive ink material is applicable to color spraying or inkjet systems of 3D curved glass frames, and on the basis of no increase of construction difficulty, the negative effect of a curved surface on the exposure imagingeffect is reduced as far as possible. On the basis of the special requirements of photosensitive ink for printing of 3D curved glass cover plates, various key raw materials are designed and synthesized and are used for a formula of the photosensitive ink, on one hand, the key raw materials are used for matching a production process, on the other hand, the key raw materials are used for matching acuring process, and more importantly, the ink pattern effect, the environmental tolerance of cured patterns and other properties are improved.
Owner:SHENZHEN GLITER PRINTING MATERIALS & EQUIP

High-performance multifunctional strain sensor material with stable interface as well as preparation method and application of high-performance multifunctional strain sensor material

The invention discloses a high-performance multifunctional strain sensor material with a stable interface as well as a preparation method and application thereof. The strain sensor material mainly comprises an organic silicon elastomer serving as a substrate, and a micro-nano-scale rough crack structure is constructed on a polished surface of the organic silicon elastic substrate; and the conductive particles are inserted and assembled on the swollen substrate working surface based on ultrasonic pushing, so that a rough material working surface with coexistence of wrinkles and cracks and densely stacked and assembled conductive particles on the outermost layer is constructed. The surface resistance of the attachment surface of the conductive particles of the sensor material is lt; 104 omega. The material has good external force action, rain wash and high and low temperature complex environment tolerance, the upper surface of the micro-nano-scale coarse structure is super-hydrophobic, and the particle layer is stable after acid-base corrosion, repeated adhesive tape adhesion and pulling and repeated stretching deformation. The resistance of the material shows sensitive response to tensile deformation, and the material can be used as an excellent strain sensor material with good complex environment tolerance.
Owner:HANGZHOU NORMAL UNIVERSITY

Oily sludge treatment method

The invention discloses an oily sludge treatment method which comprises the following steps: (1) carrying out aerobic treatment on oily sludge to obtain a sludge-water mixture; (2) carrying out air flotation treatment on the mud-water mixture to obtain oily mud water and oily wastewater; part of the oily muddy water flows back to the step (1), and the remaining oily muddy water is subjected to chemical oxidation treatment to obtain oil-removed sludge; the oily wastewater is subjected to Fenton oxidation treatment, part of the oily wastewater subjected to Fenton oxidation flows back to the step (1), and the remaining part of the oily wastewater is discharged; in the step (1), offshore oil tolerant bacteria are added in the aerobic treatment process. An aerobic treatment and chemical oxidation coupling process is adopted, the method is applied to a high-oil-content and high-salt-content environment, harmless treatment of the oil sludge and recovery of petroleum resources are achieved, and the whole process is stable in operation, easy and convenient to operate, short in treatment period, high in oil removal efficiency and good in environmental tolerance.
Owner:GUANGZHOU SINOVAST ENERGY ENVIRONMENT GRP

A kind of air pressure type solution mixer

The present invention relates to a pneumatic solution agitator, comprising a reciprocating piston assembly and a mixing barrel, the mixing barrel is provided with an air guide chamber, a stirring chamber and an air pressure chamber; the reciprocating piston assembly includes a reciprocating assembly and a piston mechanism, the piston The gas in the mechanism shrinks and expands under the drive of the reciprocating component. The piston mechanism includes an exhaust port that doubles as the suction port. The exhaust port communicates with the air guide chamber; It is a semi-closed cavity, the opening end of the mixing chamber communicates with the air guide chamber through a one-way valve A, and the conduction direction of the one-way valve A is from the stirring chamber to the air guide chamber; the opening end of the air pressure chamber passes through the one-way valve B communicates with the air guide chamber, and the conduction direction of the one-way valve B is from the air guide chamber to the air pressure chamber; the outer wall of the mixing chamber and the inner wall of the air pressure chamber are connected through a number of release holes; the whole stirring mechanism is fully sealed, Compared with the shaft-type driving mechanism, the pressure-bearing performance is better, and the piston size is increased to reduce noise.
Owner:香港東鴻國際實業有限公司

Array plate type solar heat collecting assembly

The invention relates to an array plate type solar heat collecting assembly. The assembly comprises a plurality of heat collecting plates, wherein each heat collecting plate comprises a heat collecting plate body, and a heat collecting chamber is arranged in each heat collecting plate body; each heat collecting plate body is a regular polygon and a set of connecting ports are arranged at each sideof each heat collecting plate body; each connecting port includes a connecting joint protruding towards the outside of the corresponding heat collecting chamber and a connecting slot; each connectingjoint is provided with a connecting cavity A which communicates with the corresponding heat collecting chamber; each connecting slot is provided with a connecting cavity B communicating with the corresponding heat collecting chamber, and the shape of the connecting cavities B corresponds to that of the connecting joints; and the adjacent heat collecting plates are fixedly connected with each other through inserted connection of the connecting joints and the connecting joints, and waterway connectivity is achieved. Non-pipe-connection between the heat collecting plates is achieved through inserted connection of the heat collecting plates, the area utilization is high, and no heat loss of the pipeline is generated; in addition, the assembly is higher in structural integrity and can be usedto replace a roof or a floor.
Owner:JIANGSU SUNNIC SOLAR ENERGY INDAL

A kind of integrated recording material and preparation method thereof

The invention belongs to the technical field of information recording materials, and particularly relates to an integrated recording material and a preparation method thereof. The integrated recording material comprises a carrier, a thermal type sublimation layer, a binding layer and a color developing layer which are sequentially arranged from bottom to top, wherein the carrier is a planar material with a thickness being 2-50 [mu]m; the thermal type sublimation layer is formed by drying thermal type sublimation printing ink which is coated on a smooth and clean surface of the carrier once or multiple times; the binding layer is formed by drying binding printing ink coated on the surface of the thermal type sublimation layer; and porosity required by the material of the color developing layer is 25-70%. The integrated recording material provided by the invention is simple and convenient to use, can tolerate an environment temperature not higher than 150 DEG C according to preliminary detection and has relatively good environmental tolerance; and with bright and various colors, and relatively good environment-friendly convenience, the integrated recording material has a relatively high practical value and relatively good popularization and application.
Owner:JIAOZUO ZHUOLI STAMPING MATERIAL CO., LTD.

Preparation method and application of a kind of degreasing bacteria agent, its composite dry powder bacteria agent

The invention discloses an oil-removing bacterial agent in the technical field of oily sludge treatment, a preparation method and application of its composite dry powder bacterial agent, and the oil-removing bacterial agent contains two kinds of bacterial liquids of GWN-1 strain and GWN-2 strain The mixed solution, the number of viable bacteria in each bacterial solution is 10 9 ~10 11 each / ml; the two kinds of bacterial liquids are respectively GWN‑1 bacterial liquid by volume ratio: GWN‑2 bacterial liquid=1: (1.9~2.1) to mix; Press filtration and drying obtains a dry powder, which is used in the treatment of oily sludge from oilfields. The composite dry powder bacterial agent is suitable for direct biodegradation of oily sludge in oilfields with high water content, high oil content and high salinity, has good environmental tolerance, and the preparation method has the characteristics of simple operation and low cost, and is suitable for large-scale production and application.
Owner:CHINA PETROLEUM & CHEM CORP +1

High-stability magnetic immobilized laccase, preparation method thereof and method for efficiently degrading dye

The invention provides high-stability magnetic immobilized laccase, a preparation method thereof and a method for efficiently degrading dye. The preparation method comprises the following steps of: firstly, synthesizing magnetic Fe3O4 nanoparticles by adopting a solvothermal method; then functionalizing the magnetic nanoparticles by using amino functional groups; and finally, crosslinking by using a bifunctional reagent glutaraldehyde to prepare the magnetic immobilized laccase with high activity, high stability and high reusability. Compared with the prior art, the magnetic immobilized laccase prepared by the preparation method provided by the invention is simple to operate, economic and environment-friendly, high in atom utilization rate, green and pollution-free; and the magnetic immobilized laccase has continuous and stable catalytic ability, simple and convenient reusability and green sustainability, and the production cost is greatly reduced, so that the magnetic immobilized laccase has a wide application prospect in the fields of catalytic oxidation, water body treatment, environmental remediation and the like.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE

A method for preparing bio-bricks by using microorganisms to induce calcium carbonate deposition

The invention belongs to the technical field of novel building materials, and particularly relates to a method for preparing a biobrick by inducing calcium carbonate deposition through microorganisms.The method is used for preparing an ecological and environmentally friendly building brick having good strength characteristics and physical characteristics. The method comprises the steps: taking bacillus pasteurii and bacillus pseudofirmus as a composite bacterial liquid; mixing the composite bacterial liquid with a mixed saline solution and a urea aqueous solution to form a curing liquid; uniformly mixing the curing liquid with sand and quick lime; pouring the mixture into a brick making mold and carrying out curing reaction for 5-7 days; and supplementing a nutrient solution once every 12hours during period, supplementing the bacterial solution once every 1 day, and demolding and drying after curing is finished, to obtain the biobrick. The method has the advantages that the operationis simple, fast and efficient; and the prepared biobrick is non-toxic and pollution-free, has no adverse effect on the environment, also has high compressive strength and good environment tolerance,and can replace a traditional concrete brick.
Owner:SOUTH CHINA AGRI UNIV
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