315results about How to "Increase the attachment area" patented technology

The invention provides a sea cucumber bottom-sowing culture facility suitable for a soft seabed. The facility comprises frameworks, built-in separation nets, built-in dense nets, cuffs, a traction rope, an anchoring object and a marking floater. The frameworks are arranged in parallel and are covered with outer-wrapping netlike clothing, the frameworks are mutually connected to be of a telescopic mesh cage shape, the built-in separation nets for separating each framework into a plurality of culture units are arranged on each framework, the built-in dense net for catching and gathering sea cucumber baits is arranged in each culture unit, cuffs for taking and placing a sea cucumber is arranged on the outer-wrapping netlike clothing of each culture unit, the frameworks on two ends are respectively and sequentially connected with the traction rope and the anchoring object to be fixedly arranged in a seabed, and the marking floater is connected onto one end of the culture facility. Compared with the traditional culture facility, the culture facility provided by the invention is light and convenient, can be compressed, and is convenient for transportation, throwing and management, and the affect from a natural disaster of typhoon and the like is avoided; and by the adoption of the culture facility, the problems of easiness in entrapping by silt, poor culture effect and the like of the traditional culture facility can be solved, particle-like suspended matters in seabed water can be effectively held back as sea cucumber baits, and the survival ratio and the growth rate of the sea cucumber are improved.

The invention provides environment-friendly stemming for a blast furnace. The stemming is prepared from aggregate, silicon carbide, titanium dioxide, white mud, coke dust, micropowder and a binding agent. The method for preparing the stemming comprises the following steps: proportioning aggregate, silicon carbide, titanium dioxide, white mud, coke dust and micropowder according to the mass percentage; performing dry mixing and grinding, adding the binding agent, and performing wet mixing and grinding to obtain the environment-friendly stemming for a blast furnace. The stemming has the advantages of small shrinkage rate, excellent thermal shock resistance, excellent washing resistance and excellent erosion resistance, and once tapping time reaches 100-180 minutes; in-situ generated TiC has an effect of protecting the furnace, and the service life of the furnace can be prolonged; T60 carbon-containing resin and phenolic resin are used as the binding agent to reduce generation of cancerogenic smoke and improve the operation environment.

The invention discloses a three-dimensional material, a preparation method thereof, and an electrode utilizing the three-dimensional material and used for a supercapacitor. The three-dimensional material is a porous compound of a three-dimensional spatial structure, wherein the porous compound comprises a framework and a flake-like substance having a thickness of 1-20 nm and attached onto the framework. The preparation method of the three-dimensional material comprises the steps of preparing a few layers (1 to 10 layers) of ultra-thin flake-like substances, and subjecting the ultra-thin flake-like substances with a framework precursor and an optional auxiliary filler to mixing, freeze-drying, thermal treatment and the like. The electrode used for the supercapacitor and prepared by pressingthe three-dimensional material has the advantages of high specific capacitance, excellent energy and power densities, good cycle performance and low price, and has great potential for application infields such as electronic communications and mobile equipment.

The invention provides a foliar fertilizer which comprises, by weight percentage, 1 to 10% of chitin, 5 to 15% of urea, 2 to 8% of potassium hydroxide, 5 to 10% of diammonium phosphate and 0.5 to 3% of a surfactant, with the balance being water. Furthermore, the invention also provides a preparation method for the foliar fertilizer. After applied on plant leaves, the foliar fertilizer provided in the invention can directly increase the concentration of sugar in crops, promotes the growth of roots of crops, induces crops to generate a plurality of disease-resistant substances and has powerful inhibition, passivation and prevention effects on fungus and bacteria; therefore, the foliar fertilizer effectively prevents and controls disease and pest damage and improves quality and output of crop products.

The invention discloses an integrated large-scale raft type culture device. The culture device comprises a body and a fixed berthing device for fixing the body, wherein the body comprises a PE float of which the top is provided with a working platform, and at least six cantilevers connected with the side of the PE float. The PE float has a cavity; the cantilevers are radially arranged along the side of the PE float; an I-shaped steel bar is connected with the bottom end of the PE float; and a weight is connected with a cable on the underside of the I-shaped steel bar. The culture device has the advantages that: the device has a lower integral center and good stability, and realizes the function of controlling the culture water level conveniently; in addition, the culture device has simple operation, great culture space and high production efficiency; and the operating personnel can walk and patrol on the device so as to conveniently find out hidden dangers and carry out the harvest operation. The integrated large-scale raft type culture device has a reasonable structure, good stability, high culture efficiency, convenient patrol and harvest, and simple water level control.

A semiconductor package includes a carrier, a chip, a stiffener and an encapsulant. The chip is disposed on the carrier. The stiffener is disposed around the chip, directly contacts the carrier, and is mounted on the carrier. The encapsulant is adapted to seal the chip and the stiffener.

The invention discloses an evaporation source check plate structure. The evaporation source check plate structure comprises a plurality of adjoining but contactless metal check plates, wherein each metal check plate comprises an arc shielding surface, the side of the arc shielding surface, back on to the evaporation source, is convex, the side of the arc shielding surface, facing toward the evaporation source, is concave, the cambered surface angles of the shielding surfaces of two adjacent metal check plates are the same, two ends of the shielding surface are respectively bent toward the direction of the evaporation source so as to form two lower edges of the same length, and an inward concave opening is formed between the lower edge and the shielding surface. By adopting the evaporation source check plate structure, the problem in the OLED (organic light emitting diode) test line and volume production line that a few materials are simultaneously heated in a cavity so as to cause material cross contamination is effectively solved; in the OLED test line and volume production line, holes are effectively prevented from being blocked by falling materials excessively deposited on the evaporation source check plate; used OLED material can be well collected so as to be recycled and purified, thus lowering the cost.

The invention discloses a production method of water-in-water colorful paint containing color sand. The production method comprises the following steps: (a), preparing a protection glue solution; (b), producing basic slurry; (c), matching the color of the basic slurry; (d), performing color point granulation; (e), producing coating gloss oil; (f), producing finished paint. Granite-shaped particle containing particles are formed on the surface of the paint produced by the method, imitated-marble granite paint can be prepared from the paint, formed patterns are simple, artistic and elegant, and the paint prepared by the method is level in surface and not easy to form ash deposition, can keep the overall appearance longer, and has stain resistance; the special coating gloss oil can keep the color on the surface of the paint to be permanent and fresh, and has weather resistance; the paint is high in water resistance and rot resistance, is neither absorbed by a wall surface nor damaged in rainy days, and can protect the overall shapes of buildings.

The invention relates to a factory sea cucumber pool-culturing device. The factory sea cucumber pool-culturing device is characterized in that: the factory sea cucumber pool-culturing device comprises more than one transverse partition plates and more than one longitudinal partition plates, the transverse partition plates are transversely extended, vertically arranged and located at different longitudinal positions, and the longitudinal partition plates are longitudinally extended, vertically arranged and located at different transverse positions. The purpose of the invention is to provide the factory sea cucumber pool-culturing device which has a simple structure and can increase the culturing density.

The invention provides a combined packing for an immobilized microorganism technology. The combined packing comprises an outer frame body and a porous polyurethane carrier, wherein the outer frame body is a sphere injection-molded by a packing mould; and the porous polyurethane carrier is of a regular hexahedron structure formed by foaming and cutting polyurethane foaming plastic. By using the packing provided by the invention, the starting time of a biochemical system can be remarkably shortened, and the treatment effect can be improved; and meanwhile, the combined packing is also relativelyhigh in porosity and mechanical strength, capable of providing relatively large attachment area for microorganisms, good in wear resistance in a long-term wastewater treatment process and free of loss.

The invention discloses an extendable tower-shaped satellite antenna framework structure. The tower-shaped satellite antenna framework structure is an integrated mesh tower-shaped structure, meshes form the upper bottom of the tower-shaped structure and the framework of each side surface, and the mesh wires of the meshes are composed of two kinds of memory alloy wires with different specifications. The extendable tower-shaped satellite antenna framework structure has the following advantages: 1. the use of a memory alloy wire technology can reduce the quality of the complexity of the actuating mechanism extended by a satellite antenna and improve the extension reliability; 2. the antenna extension mechanism provided by the invention can be integrated with other special extension mechanisms for design so that the structure weight can be saved and the efficiency can be enhanced; 3. by adjusting the positions and the shape of the meshes, the first-order inherent frequency of the tower-shaped satellite antenna framework structure can be adjusted; and 4. a tower-shaped satellite antenna framework, made of metal materials, can be used as an antenna. The tower-shaped satellite antenna framework has a big caliber so that the problem of inadequate gain of a conventional antenna can be overcome, the gain of the tower-shaped antenna is enhanced, and the ground communication capability is also improved.

The invention relates to a culture tail water recycling aquatic rice farming method, and belongs to the technical field of the treatment of culture wastewater. According to the culture tail water recycling aquatic rice farming method, wastewater from a culture pond is purified through a water-collecting well, a filter tank and a modifying pool, and then is reused again; the wastewater in a purification process can be used for carrying out the plantation of paddy rice; a solid particle in the wastewater is adsorbed and intercepted through a developed root system of the paddy rice; an aerobiotic / anoxic zone is formed at a root segment of the paddy rice to promote the reaction processes of nitrification and denitrification; by using the culture tail water recycling aquatic rice farming method, the characteristics that an aerated biological filter tank is high in the volumetric load of an organic matter, high in hydraulic load and short in hydraulic retention time, and the like, are combined; the investment, running and maintenance costs are relatively reduced; the purification effect on the wastewater is improved. According to the culture tail water recycling aquatic rice farming method, through introducing the wastewater from the culture pond into a planting tank, not only is the water quality purified, but also a nutrient substance is provided for the growth of the paddy rice in the planting tank at the same time; the purification of the water quality and the plantation of a commercial crop are organically combined together; the mutualism relation among different organisms is realized; the nutrient substance is circulated.

The invention belongs to the field of solid waste treatment, in particular relates to sludge drying equipment based on drying treatment of urban sludge. The sludge drying equipment comprises a drum with an inclined axis, and a driving assembly for driving the drum to rotate along the axis of the drum, wherein the drum is provided with an accommodating cavity for accommodating sludge; the accommodating cavity is arranged in the axial direction of the drum and in a penetrating manner; the feeding end of the accommodating cavity is arranged at the high end part of the drum, and the discharging end of the accommodating cavity is arranged at the lower end part of the drum; the sludge drying equipment further comprises heat supply pipes for supplying heat to the accommodating cavity; the heat supply pipes are arranged in the accommodating cavity; two or more heat supply pipes are arranged in the axial direction of the accommodating cavity; air vent holes communicated with the cavities of the heat supply pipes and the accommodating cavity are formed in the walls of the heat supply pipes. The heat supply pipes of the invention are used as stirring pipes of the whole accommodating cavity while performing the functions of supplying heat and drying. The sludge drying equipment has the advantages of simple structure, easy and reliable operation, effective achievement of purpose of drying existing wet sludge and extremely-high drying efficiency.

The invention relates to a graphene / copper composite material and a preparation method and application thereof. The graphene / copper composite material preparation method comprises the steps that (1),drawing treatment is performed on a copper substrate; (2), polishing treatment is performed on the copper substrate obtained by the drawing treatment; and (3), a carbon source is introduced in, graphene is grown uniformly on the surface of the copper substrate obtained in the step (2), hot pressing sintering is performed for densification, and the graphene / copper composite material is obtained. Bymeans of the graphene / copper composite material preparation method, the obtained graphene / copper composite material has excellent electrical and mechanical properties and can be taken as a conductormaterial inside motors, transformers, current transformers, cables and other equipment, especially applied to the motors, the graphene / copper composite material can further improve the overall performance of the motors, and the goals of high efficiency and energy conservation are realized.

The invention discloses a shading adhesive tape, a backlight module and a display device. A first bonding region and a second bonding region are formed on the shading adhesive tape, wherein the shading adhesive tape comprises a substrate; the upper surface and lower surface of the substrate of the first bonding region are respectively provided with an adhesive layer; and the lower surface of the substrate of the second bonding region is provided with an adhesive layer. The adhesive frame does not need the double-shot molding adhesive frame, thereby lowering the manufacturing cost. The manufacturing of the adhesive frame does not need the injection molding twice, so that the backlight module with the ultranarrow adhesive frame can be applied to the display device with the ultranarrow frame. The shading adhesive tape is also attached to the side surface of the adhesive frame, thereby increasing the attachment area of the shading adhesive tape on the adhesive frame, and further lowering the shedding risk of the shading adhesive tape.

The invention discloses an intermediate aquaculture system for pinctada maxima. The intermediate aquaculture system comprises an outer ring slot and an inner slot formed by encircling the outer ring slot, wherein a communicating plate, a water level plate, a screen and a baffle are arranged in the outer ring slot; a clearance is reserved between the bottom of the communicating plate and the bottom surface of the outer ring slot; the water level plate and the baffle are plugged in the outer ring slot to form a filtering water chamber; the screen covers the top of the filtering water chamber and is inclined from the water level plate to the baffle; a sewage drain pipe is arranged at the lower end of the screen; an attachment device for attaching beneficial bacteria is arranged in the inner slot; a clean water outlet communicated with an aquaculture region is formed in the slot wall of the inner slot; water in the aquaculture region flows into the filtering water chamber after being filtered by the screen and then is extracted to the inner slot; by beneficial bacteria purification treatment, the water flows into the aquaculture region from the clean water outlet so as to realize water body circulation. The intermediate aquaculture system for pinctada maxima can be used for automatically purifying aquaculture water, so that the water quality can be kept in a good state for a long time; therefore the water change frequency is reduced, irritation to pinctada maxima stress is alleviated, and loss of bait algae along with water drainage is also reduced, so that the supply of baits is reduced, and the labor intensity is correspondingly reduced.

The invention discloses a disinfection device for air purification, which comprises a purification and disinfection device (1), an electric appliance control box (2); the purification and disinfection device is provided with a UV light source (5) and the lower part of the purification and disinfection device (1) is connected to the electric appliance control box (2), inside of which is provided with a UV light control circuit; the shell of the purification and disinfection device (1) is a hollow-out column formed by a metal net (7) to surround in corrugated shape, and the purification and disinfection device is also provided with a projecting object (4); the surfaces of the metal net (7) and the projecting object (4) are adhesive with nano-metal compounds material; the inside of the electric appliance control box (2) is provided with a control circuit of non-balanced plasma generator. The invention has good purification and disinfection effect to volatile organic pollutants and harmful microorganisms, and can be applied to such fields as public places, office buildings, transport equipment, families, hotels, and medical institutions, etc.

The invention discloses a kitchen waste percolate enhanced treatment method. The kitchen waste percolate enhanced treatment method comprises the following steps: (1) enabling kitchen waste percolate wastewater to sequentially enter a grid, an oil separation pool and a preaeration regulating pool; (2) lifting the wastewater to a demulsification pool; (3) enabling the wastewater to enter air floatation equipment; (4) enabling effluent to enter a primary settling pool; (5) enabling the wastewater to flow automatically into an anaerobic ammonia oxidation reaction pool; (6) lifting the wastewater to a forced hydrolysis pool; (7) enabling the effluent to flow automatically into an ABFT pool; (8) enabling the effluent to enter an MBR membrane bioreactor; and (9) enabling the produced water to enter a clean water pool. The invention also discloses a kitchen waste percolate enhanced treatment system. The kitchen waste percolate enhanced treatment system comprises a pretreatment unit, the preaeration regulating pool, the demulsification pool, the air floatation equipment, the primary settling pool, the anaerobic ammonia oxidation reaction pool, the forced hydrolysis pool, the ABFT pool, theMBR membrane bioreactor and the clean water pool. The technology is advanced, the process is reliable and the effluent is stable and reaches the standard.

A banquet table includes a reinforcing tabletop frame and a supporting frame. The reinforcing tabletop frame includes a reinforcing tabletop panel, which is made of mold-injected material, having two surrounding rims extended along two longitudinal sides of the reinforcing tabletop panel respectively, and a plurality of reinforcing arrangements spacedly embedded in the surrounding rims of the reinforcing tabletop panel respectively. The supporting frame includes two runners attached along the surrounding rims of the reinforcing tabletop panel via the reinforcing arrangements, and two leg frame pivotally attached at a bottom side of the reinforcing tabletop panel.

The invention relates to a spiral strip filler which comprises a bent strip filler body, wherein the filler body comprises a plurality of continuous-S-shaped wrinkle, each fold of the wrinkle forms a semiclosed space into which a fluid can flow, and a microbial attachment surface is formed on the surface of each wrinkle. The S-shaped wrinkles formed on the filler body increase the specific area and microbial attachment area; and water or gas flowing across the folds rotates in the semiclosed space formed by each fold to form a swirl and is thoroughly mixed, thereby effectively enhancing the utilization ratio of water and gas, and enhancing the treatment efficiency. Meanwhile, when the bent strip filler body is filled in bulk, the bends and wrinkles are superimposed to form a steady integral body, so that rolls can not be easily formed under quick or massive water impact, thereby effectively protecting the biofilm attached to the filler surface, and ensuring the stability of the biofilm. The spiral strip filler is applicable to environment treatment.

The invention discloses an adhesion substrate for artificial cultivation of porphyra yezoensis conchocelis. The adhesion substrate comprises a cement base, oyster shells, and auxiliary handles; the cement base main body is made of cement; the oyster shells are closely connected and distributed on the adhesion substrate; a surface with a pearl layer of each oyster shell faces upwards; the rough surface of each shell is embedded into the cement base; the auxiliary handle is embedded into the cement base; and two ends of the cement base are respectively provided with one auxiliary handle, and themain function is to assist the movement and distribution of the adhesion substrate. A mode of integration and fixing of the shells is adopted in the application, the size and specification limitationof raw materials of adhesion substrates is broken through, and the utilization rate of the shells is improved. The adhesion substrate with the cement base can be cleaned with the match of high-pressure water-flow washing, meanwhile, displacement of the adhesion substrate is avoided, and the cleaning efficiency is improved, so that the labor cost is reduced. The utilization area of a single adhesion substrate is effectively increased; and compared with the area of conventional adhesion substrates, the area is increased by 15-30 times, so that the breeding efficiency is remarkably improved, andthe production management cost is reduced.

The invention discloses a ceramic capacitor structure, which comprises one or more capacitor substrates and a plurality of support plates, wherein the capacitor substrates are positioned on opposite inner sides of every two support plates respectively; electrode conductors on two side surfaces of the capacitor substrates are electrically connected with metal circuit layers on opposite inner side surfaces of the two support plates respectively, and are in staggered and overlapped states; an insulating layer is molded integrally between each capacitor substrate and the inside of each support plate; slots for exposing the metal circuit layers are longitudinally formed on two vertical side planes of each insulating layer respectively; and the surfaces of the slots and the support plates are provided with outer end part electrodes which are covered on the metal circuit layers and are connected electrically. By means of a large-area circuit layout design with a plurality of support plates, a plurality of capacitor substrates can be connected in parallel on a single main body according to the requirements of a manufacturer, and the effects of reducing area and increasing capacitance value are achieved in a modular laminating way in accordance with the manufacturing specification of a ceramic capacitor simultaneously, so that quick volume production can be more simply and easily performed, and the cost can be saved effectively.

The invention relates to the technical field of environmental protection, in particular to a method for recycling waste refractory materials. The method comprises the following technological processes: classifying and selecting the waste refractory materials; on a basis of the total weight of reclaimed materials, preparing a material with the following ingredients at a ratio: 85%-90% of Al2O3, 0.5%-3.5% of SiO2, 1.5%-4.5% of MgO, 0.5%-1.5% of ZrO2 and the balance of impurities, crushing the material, removing iron by magnetic separation, performing size grading, heating and drying, feeding inthe material for mixing, firing the material at high temperature for forming, and cooling, so as to obtain a regenerated high-alumina brick. According to the method, the regenerated high-alumina brickis generated by adopting the waste refractory materials, so that the process is simple, the waste of the waste refractory materials can be reduced, the recycling of the waste refractory materials andthe increase of the added value are facilitated; the regenerated high-alumina brick produced by taking the waste refractory materials as raw materials is good in thermal shock resistance and pressureendurance and has considerable economic benefits.

A liquid crystal display includes: first and second substrates on which a display area and a non-display area are defined and a plurality of pixels are defined at the display area; a pixel electrode formed at each pixel on the first substrate; a plurality of first attachment improving protrusions formed at the non-display area along edges of the display area on the first substrate and made of the same material as the pixel electrode on the layer on which the pixel electrode is formed; a common electrode formed at least on a display area of the second substrate; a plurality of second attachment improving protrusions formed on the non-display area of the second substrate and branched off from the common electrode; and a sealant formed between the first and second substrates such that the sealant is attached with the first and second attachment improving protrusions, and having conductivity, wherein the common electrode receives a, common voltage via the sealant and the first attachment improving protrusions.

The invention relates to the field of aquaculture and aims at providing a fry incubation and rearing pond with fish spawning nests and improving the survival rate of fries. According to the technical scheme, the fry incubation and rearing pond with the fish spawning nests comprises a pond body, wherein the pond body is provided with a water outlet portion and a matched aeration structure, and air outlet holes of the aeration structure are evenly formed along the periphery of the water outlet portion. The aeration structure produces a large amount of air bubbles distributed around the water outlet portion. Therefore, the phenomenon that fries poor in swimming ability go to the surrounding of the water outlet portion, are sucked, cannot break away and accordingly are dead can be well prevented, and the survival rate of the fries is effectively improved. In addition, at an incubation stage, the aeration structure can play an aeration oxygenation role, necessary oxygen is provided for fry incubation, and higher incubation rate is ensured. Furthermore, the fry incubation and rearing pond is additionally provided with the fish spawning nests facilitating fish spawning, a water inlet pipeline and a water outlet system, wherein the water inlet pipeline and the water outlet system are convenient to use. The fry incubation and rearing pond is suitable for fish spawn incubation and rearing and is used in the field of aquaculture.

The invention discloses a method for producing biogas by virtue of anaerobic digestion of waste oil / fat. The method comprises the steps of preparing an anaerobic fermentation strain, adding an inorganic medium and carrying out an anaerobic digestion, and comprises the following specific steps: adding anaerobically digested sludge and fat-degradable bacteria to a base culture medium as an anaerobic fermentation strain, wherein the mass ratio of the anaerobically digested sludge, fat-degradable bacteria and base culture medium is (100-300):(1-2):1000; adding an inorganic medium into the anaerobic fermentation strain at a mass ratio of (1-12):100; sequentially adding the anaerobic fermentation strain, waste oil / fat and additives at a mass percentage of 100:(1-2):(0.1-0. 15) into an anaerobic fermentation device, evenly mixing and carrying out an anaerobic fermentation to produce biogas. The activity of fat-degradation in the reaction system is increased by adding microorganisms and acclimating to form an anaerobic bacteria strain, the adhesion and contact area between the microorganism and oil / fat is increased by adding the inorganic medium, and thus the waste oil / fat is converted into biogas.

The invention provides a method for preparing a liposome, and relates to preparation of a drug carrier and a cosmetic carrier. The preparation comprises: step 1, adding an organic solvent in a container meeting medical requirements; step 2, adding a film forming material and a fat soluble medicine in the container; step3, fully dissolving the materials in the container by stirring or reflux heating; step 4, adding microspheres in the container; step 5, rotating and waterbath heating the container, vacuum pumping the container, and removing the organic solvent by evaporation to form a fat layer on the inner wall of the container and the surfaces of the microspheres; step 6, further drying the formed fat layer; and step 7, adding a water phase or medicine-containing water phase, so that the fat layer forms the liposome and falls off the inner wall of the container and the surfaces of the microspheres. The method has the advantages of simple and effective preparation process, low cost, obviously higher attachment area of the fat layer compared with the prior art and the realization of the industrialization in the preparation of the liposome, and the size of the microspheres can be changed so as to generate the various liposome, so that the method has wide adaptability.

The invention provides an array substrate and manufacturing method thereof The array substrate comprises a display area and a driving area, wherein the driving area comprises a pad area having a plurality of pads electrically connected with an external flexible circuit board. The array substrate is characterized in that the pad area comprises a glass substrate, a first insulating layer, a second insulating layer and a third insulating layer, which are arranged from bottom to top sequentially, wherein all pads are arranged on the surface of the third insulating layer, and the second insulating layer and the third insulating layer are each provided with a through hole on the area between two adjacent pads. Section display is increased greatly, attaching area of ACF glue in a limited space is increased, and the adhesion capability of ACF is improved. FOG and FPC contact impedance is reduced, the compression scope of conductive ion in ACF glue becomes large, the compression ratio is increased, and the FOG and FPC contact impedance is reduced.

The invention discloses a preparation method of composite biological filler for a spiral groove. The preparation method comprises the following steps of 1, smashing a coconut shell to form powder; 2, preparing carboxyl-hydroxyl-silver modified vermiculite powder; 3, mixing powdered activated carbon, granular activated carbon and zeolite powder according to a certain ratio; 4, preparing a spherical filler carrier for the spiral groove; 5, preparing a mixed bacterium suspension; 6, placing the mixed bacterium suspension into a vessel, diluting the mixed bacterium suspension by using deionized water until the pH value of the mixed solution is neutral, and adding polyvinyl alcohol to form a mixed solution; and 7, smearing the mixed solution in the spiral groove of the spherical filler carrier for the spiral groove to obtain the composite biological filler for the spiral groove. The composite biological filler for the spiral groove, prepared by using the method, is better in biofilm formation performance, adsorptivity and stability, incapable of influencing the normal growth of microorganisms and capable of favorably removing ammonia nitrogen, nitrate nitrogen and organisms in a water body.