62results about How to "Easy to apply directly" patented technology

The present invention includes perfusion bioreactors, automated cell culture systems, and methods for production of cells and cell-derived products.

The invention provides donkey-hide gelatin polypeptide and a method for preparing the same. The method comprises the following steps that donkey-hide gelatin is reacted with biologic compound enzyme under certain conditions, and the reacted compound is filtered and dried, etc., to obtain the donkey-hide gelatin polypeptide. The method has simple steps, easy operation and control, and low cost. Moreover, the donkey-hide gelatin polypeptide produced according to the method has steady property and easy preservation, can be dissolved into cold water to form steady solution, and can be taken as an independent composition to directly be applied to compound products.

The invention relates to an in-situ method for preparing a graphene / carbon nanotube composite film, which comprises the following steps of: 1. weighing ferrocene and sulfur, uniformly mixing and placing the mixture at the front end of a reaction vessel; placing a polycrystal nickel piece in the center of the reaction vessel and sealing the reaction vessel; 2. introducing a hydrogen / argon mixed gas into the reaction vessel, heating the center of the reaction vessel to 1100-1150 DEG C and adjusting the flow of the hydrogen / argon; 3. heating the ferrocene and the sulfur at the front end of the reaction vessel so as to enable the ferrocene and the sulfur to be volatilized and carrying a volatilized gas into the reaction vessel to react by the adjusted hydrogen / argon mixed gas in the step 2; 4. stopping heating the center of the reaction vessel, shutting off the hydrogen, adjusting the flow of the argon, drawing the nickel piece out of the center of the reaction vessel and cooling to room temperature; and obtaining the graphene / carbon nanotube composite film on the nickel piece. The invention realizes the batch production of the graphene / carbon nanotube composite film and has the characteristics of large area, controllable thickness, high electrical conductivity and continuation.

The invention discloses a preparation method of silver / carbon composite hollow nanospheres. According to the method, under a stirring condition, a glucose solution is added into a silver nitrate aqueous solution; a proper amount of trioctylamine is slowly dropped in while stirring is carried out; the mixed solution is subjected to ultrasonic dispersion, such that a milky while solution is obtained; the emulsion obtained after ultrasonic treatment is delivered into a reaction kettle, and a hydrothermal reaction is carried out; when the reaction is finished, the obtained product is cooled to room temperature; centrifugal separation is carried out, such that black solid particles are obtained; washing and drying are carried out; and annealing is carried out under the protection of argon gas, such that the composite hollow nanospheres are obtained. The material has good application prospects in the aspects of surface-enhanced Raman scattering, antibiosis and the like.

The invention discloses an integrated hydro-pneumatic spring device. An inerter working chamber is coaxially arranged in a damping working cylinder, a piston portion in the inerter working chamber is arranged as a screw rod structure, a ball screw nut is arranged on the screw rod in the inerter working chamber according to a ball screw principle, a flywheel is coaxially fixed on the ball screw nut, the nut is limited in the middle section and can only rotate around the screw rod through two stop collars fixed at the top and bottom of the working cylinder, and ball circular grooves are arranged on contact surfaces of the stop collars with the nut. As an improvement, self-weight of a vehicle body is not increased when sprung mass of a suspension is improved, driving comfort and handling stability of vehicles are improved, complex mechanical network combined process is avoided, and spatial arrangement limitation is reduced due to coaxial parallel connection of the inerter and the damping.

The invention relates to the fields of navigation technology and the like and concretely relates to an inertial navigation system polar navigation parameter calculating method. The method calculates navigation parameters which are suitable for polar navigation by constructing an ellipsoidal surface grid course reference model and utilizing navigation information of the inertial navigation system in a navigation coordinate system. The navigation parameters are applied to navigation calculating modules of the inertial navigation system, and the inertial navigation system can output the polar navigation parameters directly. The polar navigation performance of the inertial navigation system is raised, and the requirement of safe polar navigation of carriers is meet.

The invention provides a chemical warfare agent self-disinfection MOF (metal organic framework) fiber filtering membrane and a preparation method thereof. The preparation method comprises the following steps of performing electrostatic spinning calcining to prepare a zirconium oxide fiber film; mixing with a corresponding organic ligand and an activated acid solution, and performing hydrothermal reaction, so as to obtain the self-disinfection MOF fiber filtering membrane. The prepared self-disinfection MOF fiber filtering membrane has the advantages that the additional support material is notneeded, the self ultra-large specific surface area of MOFs is maintained, and the adsorption capacity and catalytic property are excellent; by adopting the micro-nano multi-stage structure, the reaction matter is favorably transmitted, the catalytic sites are exposed, and the agglomeration of the catalyst is avoided; the excellent self-disinfection property is realized; the degrading conversion rate of a simulating matter of a chemical warfare agent is high, the half-life period is short, and the stability in cyclic use is good; by adopting the thin film form, the self-disinfection MOF fiber filtering membrane can be directly applied into the actual filtering protection device.

The invention discloses a slow-release repairing material for organochlorine pesticide contaminated farmland soil. A preparation method of the slow-release repairing material comprises the following steps: preparing a biochar carrier; pretreating zero-valence iron powder; and preparing the slow-release repairing material. The slow-release repairing material comprises, by mass, 15-30% of the biochar, 10-20% of an organic carbon source, 5-10% of zero-valence iron, 5-10% of illite and 25-50% of guar gum. The organic carbon source can promote the activity of degrading bacteria as a growth matrix,and the biochar has a strong physical adsorption effect on organochlorine pesticides and provides inorganic nutrient minerals for soil; above effective components are organically combined by an embedding agent to realize the physical-chemical-biological synergistic enhanced repairing of the organochlorine pesticide contaminated farmland soil, so the pollutant removing effect is good, the treatmentlong-acting property of the organochlorine pesticides by the repairing material is improved, and fly-away loss caused by direct application of a powdery raw material is reduced. The slow-release repairing material for organochlorine pesticide contaminated farmland soil is suitable for repairing farmland soil contaminated with low-concentration organochlorine pesticides, and has a very broad application prospect.

The invention discloses a method for calculating the crack width of a reinforcing steel bar-steel fiber concrete shield duct piece. The method comprises: S1, carrying out loading testing on a reinforcing steel bar-steel fiber concrete beam; S2, carrying out calculation based on loading test data to obtain a crack width influence coefficient; S3, determining a corresponding pre-crack width according to the crack width influence coefficient; S4, carrying out calculation based on loading test data to obtain a tensile strength influence coefficient; S5, determining a corresponding crack bending moment based on the tensile strength influence coefficient; and S6, carrying out correction based on the calculation formula of the pre-crack width and acquiring a corresponding crack width according tothe corrected calculation formula. The calculation result is more accurate and close to the actually measured result. The method is easy to apply directly in the engineering practice and the reference is provided for the tunnel duct piece design. The method has the important engineering application value. An assessment basis is provided for evaluating the durability of the high-strength reinforcing steel bar-steel fiber concrete shield duct piece.

The invention discloses a refrigerator provided with an air channel assembly and a control method thereof, and relates to the technical field of refrigerators. The refrigerator provided with the air channel assembly comprises a refrigerator body in which the air channel assembly is arranged, wherein the air channel assembly comprises a fan assembly, a front cover plate of an air channel, and a rear cover of the air channel; the rear cover of the air channel covers the front cover plate of the air channel; an air channel chamber is formed between the front cover plate of the air channel and therear cover of the air channel; a plurality of freezing air outlets are formed in one surface of the front cover plate of the air channel; at least one interlayer chamber body which is filled with a phase-changed coolant is arranged on the front cover plate of the air channel; a controller is arranged in the refrigerator body and is correspondingly connected to a variable-frequency compressor, thefan assembly and a room temperature sensor. According to the refrigerator provided with the air channel assembly and the control method thereof, an empty chamber which is filled with the coolant is designed in the front cover plate of the air channel; the controller is arranged in the refrigerator body and is used for controlling the rotating speed of the fan assembly and the variable-frequency compressor; and the coolant is used for storing cold, and thus the problem that the temperature of a freezing chamber of an air-cooled refrigerator increases again while a defrosting heater performs heating, resulting in the spoilage of foods in the freezing chamber, can be avoided.

The invention discloses a damping shock absorber for a hydraulic interconnection suspension. The damping shock absorber comprises a liquid storage cylinder, wherein a piston cylinder is arranged in the liquid storage cylinder, a top valve assembly is arranged at the top end of the piston cylinder, a bottom valve assembly is arranged at the bottom end of the piston cylinder, and a cavity in the damping shock absorber is divided into a liquid supplement cavity between an upper end cover and the top valve assembly, an upper cavity between the top valve assembly and a piston, a lower cavity between the piston and the bottom valve assembly, and a liquid storage cavity between the piston cylinder communicating with the lower part of the bottom valve assembly and the liquid storage cylinder through the top valve assembly, the piston, the bottom valve assembly and the piston cylinder; an upper thread hole connecting with an oil tube is arranged in the upper end cover; the upper thread hole communicates with the liquid supplement cavity; a lower thread hole connecting with the oil tube is arranged in the liquid storage cylinder; the lower thread hole communicates with the liquid storage cavity; a throttle hole is arranged in the top valve assembly and the bottom valve assembly respectively; and the liquid storage cavity is charged with a compressed gas with a predetermined pressure to play a role of an energy accumulator. The damping shock absorber disclosed by the invention integrates the functions of a double-acting hydraulic cylinder, a throttle valve and the energy accumulator, and is compact in structure and convenient to directly apply to the traditional suspension structure.

The invention relates to the field of automatic driving, and discloses an abnormal driving behavior identification method and system, and a vehicle comprising the system, the abnormal driving behavioridentification method comprises the following steps: obtaining vehicle driving behavior data, and determining whether the vehicle is in a suspicious abnormal driving behavior state based on the vehicle driving behavior data; if the vehicle is in the suspicious abnormal driving behavior state, obtaining current vehicle driving scene data; judging whether the suspicious abnormal driving behavior isan abnormal driving behavior or not according to the vehicle driving behavior data and the current vehicle driving scene data; according to the technical scheme of the invention, the current drivingscene information is introduced into the recognition process of the abnormal driving behavior of the vehicle, and the recognition accuracy of the abnormal driving behavior is improved.

The invention discloses a hydrothermal preparation method of beta-type lanthanum europium molybdate red luminescent powder. The method comprises the following steps: adding appropriate concentrations of surfactant in the aqueous solution of the reactant, performing hydrothermal process to ensure that the generated precursor powder of the luminescent powder is effectively dispersed, and finally obtaining the product which has relatively regular shape, uniform size distribution and a particle size range of 0.8-1.0mu m. The product does not need to be grinded through ball-milling and can be directly used in the industrial production. In addition, the effective excitation wavelength of the product is in the blue region; the emission spectrum tests prove that the effective emission spectrum of the europium molybdate luminescent powder is in the red 616nm area under the blue 465nm radiation. The luminous intensity of the sample prepared by the preparation method is 3 times of the luminous intensity of the sample prepared by the high temperature solid-phase reaction, and the product is matched with the blue LED and can promote the increase of the color rendering index of the white LED possibly.

The invention discloses a medium plate double-frame rolling load distribution method, and belongs to the technical field of rolling of medium plates. The rolling cycle is improved by using the same rolling time of two rolling mills a target; and optimal frequency distribution of rough rolling and precision rolling of steel plates with different sizes is determined by analyzing the influencing factors such as the rolling time of different frequencies of the steel plates, the frequency and the turning steel. The determination principle of the temperature-waiting thickness of a steel plate is further determined, namely the temperature-waiting thickness of the steel plate with the size of more than 50 millimeters is 1.92 times the thickness of the steel plate, the temperature-waiting thickness of the steel plate with the size of less than 50 millimeters is 2.11 times the thickness of the steel plate, and the fluctuation range is within + / -20m. The method is applied to production of the steel plates with multiple sizes; and by linking the rolling schedule with the temperature-waiting thickness distribution of the steel plates, direct application of rolling production is facilitated.

The invention relates to a recycling method for mother liquor of N-(phosphonomethyl)iminodiacetic acid. According to the invention, with iminodiacetonitrile as a main raw material, through an alkaline hydrolysis process or an acidolysis and alkaline hydrolysis combined process, ammonia gas is recycled or / and monosodium diacid salt is generated by addition of ammonium salt and double decomposition reaction of deamination under heating; a qualified sodium chloride by-product is precipitated and separated through direct hydrolysis of the mother liquor of N-(phosphonomethyl)iminodiacetic acid and common-ion effect of hydrogen chloride; acidic mother liquor can be recycled; the mother liquor, the mother liquor incapable of being reused and washing water can be completely precipitated and separated through the addition of calcium hydroxide; the obtained precipitate can regenerate raw materials and products through an aqueous solution of acid or alkali; N-(phosphonomethyl)iminodiacetic acid is reused or separately synthesized; and the regenerated calcium hydroxide can be repeatedly reused. The novel recycling method provided by the invention can realize clean production of N-(phosphonomethyl)iminodiacetic acid and cyclic utilization of by-products with high added value.

The invention provides a large area nitrogen-doped carbon nano-tube paper preparation method, which comprises: (1) weighing ferrocene powder, dissolving in dichlorobenzene to form a ferrocene / dichlorobenzene carbon source solution, weighing pyridine, and mixing the pyridine and the ferrocene / dichlorobenzene carbon source solution to form a ferrocene / dichlorobenzene / pyridine mixing carbon source solution; 2) coiling an iron sheet or copper sheet substrate into a cylindrical material, placing into the quartz reaction chamber of a reaction furnace, sealing the reaction chamber, introducing argon gas to completely discharge air, and heating the reaction furnace; 3) when the temperature of the reaction chamber achieves 750-900 DEG C, adjusting the argon flow rate while introducing hydrogen; 4) injecting the ferrocene / dichlorobenzene / pyridine mixing carbon source solution into the reaction chamber, and carrying out a reaction; and 5) stopping the heating of the tubular reaction furnace, closing the hydrogen, adjusting argon flow rate to make the product be cooled to a room temperature along with the furnace, and collecting the large area nitrogen-doped carbon nano-tube paper on the substrate. According to the present invention, the nitrogen-doped structure carbon nano-tube film two-dimensional structure and the simple, rapid and large-scale preparation method can be used for the fields of new energy sources, sensors, flexible electronic devices, and the like.

The invention discloses a digital pressure sensor of annular oscillator including the annular oscillator with at least two same electrical parameters, a mixer and a filter. The two annular oscillators are distributed in the stress sensing concentration of the silicon girder structure, the source-drain pole of one annular oscillator is parallel with the stress direction; the other is vertical with the stress direction; the mixer is set on the thick silicon of the no stress sensing and the filter is integrated in out of the slice; the output of the two annular oscillators is connected to the input of the mixer which the output is connected to the input of the filter and the output of the filter is the output of the pressure sensor. The annular oscillator is made by connecting the odd inverters using the PMOS process. The mixer is the two-grid MOS transistor mixing circuit.

The invention discloses a Chinese medicine orthopaedic injury clamping plate. Elastic bandages are arranged on two sides of a fixing clamping plate, bonding layers are arranged on two sides of the elastic bandages, an anti-microbial dressing is arranged in the middle of the inner side of the fixing clamping plate, and a drug placing layer is arranged in the middle of the anti-microbial dressing. Aheating layer is arranged in the drug placing layer, a temperature sensor is arranged outside the heating layer, a processor is arranged at one end in the fixing clamping plate, and the temperature sensor is electrically connected with the processor. The Chinese medicine orthopaedic injury clamping plate is simple in structure, reasonable in design, the fixing clamping plate is connected with theelastic bandages to facilitate operation and use, the degree of tightness is well controlled, the drug placing layer is arranged to facilitate direct application of drugs to the affected area of a patient, the drugs are heated through the heating layer as needed to increase the effect of drug treatment.

The invention relates to the field of microorganisms, in particular to a composite lactobacillus inoculant and an application thereof in buffalo silage. The composite lactobacillus inoculant is composed of lactobacillus fermentum xf 09#, lactobacillus mucosae xf 13#, lactobacillus acidophilus xf 32# and lactobacillus plantarum xf 42# which are screened and separated from feed raw materials naturally fermented in a peasant household by the applicant. The composite inoculant is homotype lactic acid lactobacillus fermentum, and has the characteristic of high lactic acid yield. The pH value can bequickly lowered in the fermentation process to form a dominant environment for lactobacillus fermentation, the growth of infectious microbes is effectively inhibited, and a favorable fermentation inoculant and environment can provide for silage. Meanwhile, lactobacillus has the effects of bidirectional regulation and diarrhea resistance on intestinal tracts.

The invention discloses an LED light power supply assembly and an LED lamp. The LED light power supply assembly comprises a heat dissipation light supply plate (10) with LED chips (1), a wind scooper (3), a heat dissipation fan (4), a power supply box component (6), a drive circuit board component (7) and a power supply harness component (8), and is not provided with a radiator, wherein the wind scooper (3) is step-shaped; the heat dissipation light supply plate (10) is fixedly connected with the wind scooper (3), and is positioned in a large-diameter cavity of the wind scooper (3); the heat dissipation fan (4) is fixedly connected with the wind scooper (3); the power supply box component (6) is fixedly connected with the wind scooper (3), and is positioned above the wind scooper (3) and the heat dissipation fan (4); an air flow space is arranged between the power supply box component (6) and the heat dissipation fan (4); an annular air vent is formed between the side walls of the heat dissipation light supply plate (10) and the wind scooper (3); a flow guide zone (21) is formed between the back surface of the heat dissipation light supply plate (10) and the side wall and the back wall of the large-diameter cavity of the wind scooper (3); and an eddy zone (20) is formed between the back surface of the heat dissipation light supply plate (10) and the back wall of a small-diameter cavity of the wind scooper (3).

The invention relates to a wettable cathode material for an aluminum electrolytic cell as well as a preparation method and application thereof. On the basis of high wettability of graphene on aluminumliquid as well as excellent mechanical property and corrosion resistance of the graphene, the conductive surfaces of a carbon block and a metal block are spin-coated with a graphene coating or a composite layer thereof with a certain thickness by a spin-coating coating technology, and the prepared novel cathode has excellent wettability on the metal aluminum liquid, so that the thickness of the aluminum liquid at the bottom of the electrolytic cell is greatly reduced, the polar distance of the electrolytic cell can be reduced to reduce the cell pressure drop, and energy saving and consumptionreducing are realized. Meanwhile, due to the layer structure of the graphene as well as high tensile strength and compressive strength, the electrolyte corrosion resistance of the cathode and the structural strength of the cathode are greatly improved, the original cathode can be plated, and the cathode structure of the electrolytic cell does not need great modification. A metal electrode can befurther prepared, and the pressure drop of the electrolytic cell can be further reduced.

The invention relates to non-oxidation Ti3C2 quantum dots with a function of selectively killing cancer cells, and a preparation method and an application of the non-oxidation Ti3C2 quantum dots. Theaverage size of the quantum dots is only about 7 nm, the quantum dots are completely free of oxidation and free of toxic elements such as heavy metals, and the quantum dots have broad-spectrum inhibiting and killing effects on the cancer cells and show excellent biocompatibility and extremely low cytotoxicity on normal stem cells of a human body. The non-oxidation Ti3C2 quantum dots provided by the invention have huge application potential in future anti-cancer and cancer-fighting roads. Meanwhile, the quantum dots have a rapid and spontaneous water dispersion characteristic. When an aqueous dispersion liquid is prepared, any ultrasonic and stirring treatment is not needed, so that the quantum dots are beneficial to direct application in biology or medicine.

The method performs surface treatment on dead insects resulted from infection of entomopathogenetic nematodes (entomopathogenetic nematodes and insect complexes) through a three-step method. Firstly, anti-dry and antibacterial treatment is performed on the insect complexes infected by the entomopathogenetic nematodes; the insect complexes infected by the entomopathogenetic nematodes are immersed in a mixed solution of kaolin, glycerin soil and water; then further surface treatment is carried out in mixed powder of kaolin starch and vermiculite; and finally, edible pigment is sprayed to make the surface treated dead insects infected by the entomopathogenetic nematodes red color. The surface treated dead insects infected by the entomopathogenetic nematodes can release the entomopathogenetic nematodes normally. Surface treated dead insect agents solve the problems of adhesion and decay during a transport process and guarantees release rate of the entomopathogenetic nematodes. The method is simple and practical, is helpful for large-scale application of the dead insects infected by the entomopathogenetic nematodes.

During the manufacture of printed circuit boards, metal stencils are used as a mask over which a blade is used to squeegee solder through stencil holes onto conducting pads of the circuit board. A typical stencil is both expensive and delicate. Even minor dents, creases, or impressions (commonly referred to as “coins”) in the stencil can result in circuit board defects. Manufacturers frequently suffer significant losses scrapping their coined stencils and idling manufacturing lines while waiting for replacement stencils to be fabricated, shipped, and installed. An apparatus and method is provided for repairing metal stencil coins.

The invention relates to a new process for clean production of pmida and cyclic utilization of byproducts. According to the new process, iminodiacetonitrile serves as a main raw material, ammonia gas or / and a regenerated diacid monosodium salt are recovered by an alkaline hydrolysis or acid hydrolysis and alkaline hydrolysis coordinating process and an ammonium salt added and heating deamination double decomposition reaction, a qualified sodium chloride byproduct is precipitated and separated through the direct hydrolysis of pmida mother liquor and the common-ion effect of hydrogen chloride, acidic mother liquor can be cyclically applied mechanically, mother liquor, mother liquor, which cannot be applied mechanically, and washing water can be completely precipitated and separated through adding calcium hydroxide, raw materials and products can be regenerated from precipitates by an aqueous solution of acid or alkali, the precipitates are applied mechanically or are used for independently synthesizing the pmida, and regenerated calcium hydroxide can be repeatedly applied mechanically. According to the new process, the clean production of the pmida and the cyclic and high-added-value utilization of the byproducts can be realized.

The invention discloses a symmetrical dual-function photocatalyst and a corresponding dual-chamber photoreactor, belonging to the technical field of comprehensive utilization of carbon dioxide, wherein the symmetrical dual-function photocatalyst comprises a graphene intermediate electron transport layer deposited on a double-sided TiO2 nanotube array substrate, Redeposited narrow bandgap semiconductor nanoparticles as photosensitizers. The symmetric photocatalyst provided by the present invention extends the photoresponse of the ternary composite photocatalyst to the visible light region through the introduction of the electron transport layer and the photosensitizer component, simultaneously promotes the effective separation of photogenerated electron-hole pairs, and enhances the photoresponse of the composite catalyst. The ability to catalyze CO2 reduction; the double-sided symmetrical ternary composite catalyst is matched with a dual-chamber photoreactor, so that the photocatalytic water oxidation and CO2 reduction reactions are carried out in independent regions, reducing the occurrence of reverse reactions and further improving photocatalytic CO2 recovery efficiency.

The invention relates to a preparing method of lecithin of tuna roes. The method comprises the steps of 1) enzymolysis,wherein distilled water and trypsin are added into tuna roe homogenate for enzymolysis, and centrifugation is conducted after inactivation to remove supernatant; 2) digestion, wherein acetone is added into a filter cake after enzymolysis, stirring and suction filtration are conducted, and then acetone is utilized for digestion until the color of the acetone does not change; 3) secondary digestion, wherein absolute ethyl alcohol is added into the filter cake after digestion, and microwave digestion is conducted intermittently; 4) purification, a CHCl3-CH3OH(2:1) mixed solution is taken as an eluent to conduct silica gel chromatography column purification on a crude lecithinproduct, and the eluent is collected and dried to obtain the pure lecithin product. By means of the method, the extraction speed of free phospholipid can be increased, the extraction rate is increased, and then the finished product lecithin can be obtained through silica gel chromatography column purification; the purity is improved on the basis of significantly increasing the extraction rate ofthe lecithin, further direct application of the lecithin is facilitated, and the lecithin of the tuna roes can be applied to inhibition of human liver cancer HepG2 cells and lipid decreasing of Changliver cells.

The invention discloses a device and a method for advanced denitrification of advanced landfill leachate by anaerobic ammonia oxidation based on kitchen waste digestive juice as an external carbon source, and belongs to the technical field of biological denitrification of high-ammonia-nitrogen wastewater. The advanced landfill leachate firstly enters a synchronous short-cut nitrification-denitrification coupled anaerobic ammonia oxidation reactor, the reactor operates in a mode of oxygen deficit 1.5 h / micro-aerobic aeration 21.5 h, the oxygen deficit section utilizes sufficient organic matters in raw water to remove nitrite nitrogen and nitrate nitrogen remaining in the last period, and the aerobic section synergistically realizes short-cut nitrification-anaerobic ammonia oxidation and denitrification; and pumping the discharged water into a short-cut denitrification-anaerobic ammonia oxidation reactor, adding a kitchen waste digestive fluid at the same time, and operating the reactor in an anoxic manner to realize high-efficiency nitrogen removal. According to the method, the kitchen waste digestive juice which is good in biodegradability and low in price is used as an external carbon source, the treatment cost is remarkably reduced, the method is suitable for combined treatment of the landfill leachate and the kitchen waste digestive juice which are generated under the large situation of garbage classification, and the purpose of treating waste with waste is achieved.

Provided is a handheld pen type edge oiling tool. The handheld pen type edge oiling tool comprises a brush head and a handle. The brush head is detachably connected with the handle. A guide rod is arranged between the brush head and the handle. The guide rod is located in the handle and provided with a connection thread. The brush head is provided with a connection threaded rod which is inserted into the connection thread and used for fixedly connecting the brush head with the guide rod. The rolling brush head is arranged on the edge oiling tool so that paints can be directly coated on edges, thereby increasing working efficiency of edge coating. Due to the fact that the guide rod is connected with the brush head, rolling amplitude of the brush head is improved so that the brush head does not swing during coating.