226results about How to "Effective attachment" patented technology

The invention belongs to the field of water treatment, and relates to a method for strengthening the activity of anaerobic ammoxidized microorganisms through polyvinyl alcohol-sodium alginate-activated carbon embedment. The method comprises the following steps of: soaking activated carbon in anaerobic ammoxidized basic inorganic salt solution, and preparing an embedding medium by using polyvinyl alcohol, sodium alginate and the activated carbon into in a proportion; and uniformly mixing treated anaerobic ammoxidized sludge and the embedding medium in a volume ratio to obtain immobilized balls, and culturing to obtain the anaerobic ammoxidized microorganisms steadily coupled on the activated carbon. The invention aims at wastewater with low carbon-nitrogen ratio, and can provide a method for embedding the anaerobic ammoxidized sludge by using the sodium alginate and the polyvinyl alcohol as carriers and the activated carbon as a strengthening agent, and a technology for strengthening the activity of the anaerobic ammoxidized microorganisms and enabling the anaerobic ammoxidized microorganisms to resist the influence of adverse environment. By the method, sewage plants can run more steadily for a long time, and the conditions of actual operation management of the sewage plants are met.

The present invention is efficient ecological waste water treating apparatus and method. The apparatus consists of grit contacting oxidizing area, vertical upstream flow artificial wet land area, aerating jet area and horizontal flow artificial wet land area connected serially. The present invention has the advantages of composite medium in new recipe resulting in excellent phosphate and organic matter eliminating effect, the grit contacting oxidizing resulting in the long term stable running of the system, the composite of vertical upstream flow artificial wet land and horizontal flow artificial wet land resulting in raised effective volume and the aerating jet creating condition for aerobic degrading of organic matter.

The invention relates to a glass curtain wall cleaning machine. The glass curtain wall cleaning machine comprises a walking mechanism, a cleaning mechanism and a water circulating mechanism which are fixed on a bracket, wherein the walking mechanism comprises a translation cylinder, a slide block, a slide rail, a lifting cylinder, first sucking disk sets and second sucking disk sets; two groups of first sucking disk sets are symmetrically arranged on the left and right sides of the bracket; two groups of second sucking disk sets are symmetrically arranged on the upper and lower sides of the bracket; the slide block is connected with the slide rail in a sliding way; a piston rod of the translation cylinder is fixedly connected with the bracket; the translation cylinder is fixedly connected with the slide block. By adopting the glass curtain wall cleaning machine, unmanned cleaning of the exterior walls of tall buildings is realized, the cleaning speed and cleaning efficiency are high, and automatic walking and barrier crossing functions of the cleaning machine are realized; moreover, the walking speed can be adjusted in a stepless way, and the cleaning force can be adjusted in order to meet the cleaning requirements of different exterior walls.

The invention relates to a sucking disk type high-rise building outer wall cleaning machine. The sucking disk type high-rise building outer wall cleaning machine comprises a walking mechanism fixed on a bracket, a cleaning mechanism and a water circulation mechanism, wherein the walking mechanism comprises a translation cylinder, a sliding block, a sliding rail, a lifting cylinder, two first sucking disk groups and two second sucking disk groups, the two first sucking disk groups are symmetrically arranged on left and right sides of the bracket, the two second sucking disk groups are symmetrically arranged on upper and lower sides of the bracket, the sliding block is connected with the sliding rail in a sliding mode, a piston rod of the translation cylinder is fixedly connected with the bracket, and a cylinder body of the translation cylinder is fixedly connected with the sliding block. The sucking disk type high-rise building outer wall cleaning machine is fast in cleaning speed, high in cleaning efficiency, steplessly adjustable in walking speed, and capable of achieving unmanned cleaning, automatic walking, as well as an obstacle crossing function, and adjusting cleaning capability to meet the cleaning requirements of different outer walls.

The invention discloses a composite zeolite membrane, and a preparation method and application thereof. The composite zeolite membrane comprises a support body layer and a zeolite membrane layer, wherein the support body layer is prepared from nanometer stage or submicron stage ceramic powder materials or ceramic material precursors through a static spinning process; the porosity of the support body layer is as high as 83 percent, and is adjustable and controllable between 40 percent and 83 percent. The composite zeolite membrane provided by the invention has the advantages that the porous ceramic prepared by the static spinning process is used as the support body layer; the surface structure of the support body layer is flat and continuous; the porosity is high; the pore diameter is uniform; the size of the pore diameter is adjustable and controllable; the pore passage sinuosity is small; the mechanical intensity is high; the flux of the composite zeolite membrane is improved; in addition, through the fiber-shaped pore passage structure of the support body layer, seed crystals can be effectively attached; the loading quantity of the seed crystals can be ensured; meanwhile, the matching degree and the compatibility between the zeolite membrane layer and the support body layer are greatly improved; the stability of the zeolite membrane layer is improved.

The invention provides a display panel, which comprises a substrate, a display area located on the substrate, at least one retaining wall arranged on the periphery of the display area, a first inorganic layer, an organic buffer layer and a second inorganic layer, wherein one side, far away from the substrate, of the retaining wall is a protruding curved surface; the first inorganic layer, the organic buffer layer and the second inorganic layer sequentially cover the display area; the first inorganic layer covers the display area; the first inorganic layer is at least in contact with one retaining wall; the organic buffer layer covers the display area; the edge of the organic buffer layer does not exceed the edge of the first inorganic layer; and the edge of the second inorganic layer exceeds the edge of the organic buffer layer. The invention further provides a manufacturing method of the display panel. According to the display panel and the manufacturing method thereof, the display panel can be prevented from being eroded and damaged by water vapor and oxygen and the packaging airtightness of the display panel is improved.

The invention discloses a whole-process autotrophic nitrogen removal method. The method mainly comprises the following steps: 1) inoculating anammox sludge into a reactor; 2) introducing nitrogen into the wastewater so as to reduce the DO (Dissolved Oxygen) concentration of wastewater to 0mg / L (milligram per liter) by filling nitrogen into the wastewater, and regulating the pH value of a water inflow barrel to reach 7 to 8; 3) gradually increasing the water inflow load by increasing the total nitrogen concentration of the wastewater and reducing the hydraulic retention time; 4) gradually increasing the DO concentration in the wastewater after a reaction is stable, thereby culturing bacteria capable of consuming oxygen in the reactor; 5) forming the oxygen-containing bacteria on the outer layer of the anammox sludge after performing the culturing acclimatization for half a month; 6) inoculating nitrosobacteria into the reactor and properly lowering the nitrate nitrogen concentration in the inflowing water while performing aeration to the reactor and controlling aeration quantity at the same time, thereby partially converting ammonia nitrogen entering the reactor into the nitrate nitrogen, i.e., the concentration (mg / L) ratio of the ammonia nitrogen to the nitrate nitrogen is 1:1 or so; regulating the pH value in the reactor to reach 7.5 to 7.7 by using a pH controller; 7) gradually increasing the water inflow load, thereby removing the nitrogen stably. The invention further discloses a device for realizing the whole-process autotrophic nitrogen removal method.

The invention discloses an improved integrated sewage treatment device. A settling tank is connected with a water outlet at the upper part of a swimming bed reactor; the bottom of the settling tank is connected with the interior of the swimming bed reactor through a circulating pump; the swimming bed reactor is connected with an aeration pump; biofringe filler is filled in the swimming bed reactor; an up-flow type reactor adopts a cylindrical double-layer structure; the top of a reaction layer is at closed state, and an air outlet is arranged at the top of the reaction layer; a water distributor is arranged at the bottom of the reaction layer; a circular baffle plate is arranged above the water distributor; the reaction layer is divided into an upper layer reaction chamber and a lower layer reaction chamber by the circular baffle plate; a three-phase separator is arranged between the water distributor and the circular baffle; biofringe filler is filled in the upper layer reaction chamber; polyethylene sponge filler is vertically distributed in the lower layer reaction chamber; and a water inlet is arranged at the bottom of the up-flow type reactor, which is connected with a water outlet at the upper part of the settling tank. According to the improved integrated sewage treatment device, the technologies of anaerobic ammonium oxidation and denitrification are conducted in a reactor, therefore, the space is saved, and the nitrogen removal efficiency is improved.

Disclosed are an aviation aluminum alloy component residual stress detecting and evaluating system and method. The system comprises a signal generator, a power amplifier, a probe, a modulator circuit, a filtering amplifier, a data collecting card and a computer which are sequentially connected. The probe comprises a cross-shaped flexible excitation coil which is bonded with a plastic base with an angle dial, a first solid-state magnetic field sensor, a second solid-state magnetic field sensor, a third solid-state magnetic field sensor and a fourth solid-state magnetic field sensor are fixed in four cross-shaped arms of the cross-shaped flexible excitation coil respectively, a center locating point O of the cross-shaped flexible excitation coil is completely overlapped with the center of the plastic base with the angle dial, the direction of the connecting line of the first solid-state magnetic field sensor and the third solid-state magnetic field sensor is completely overlapped with the horizontal direction, and the direction of the connecting line of the second solid-state magnetic field sensor and the fourth solid-state magnetic field sensor is completely overlapped with the longitudinal direction. The invention further discloses the detecting and evaluation method corresponding to the system. Thus, quantitative and directional detecting can be conducted on the residual stress of aviation aluminum alloy components.

The invention discloses an oil-contained sewage treatment method and an eddy energy fast-cyclone separating system (Haynes) of special equipment for the method. Oil-contained sewage enters a multilevel cyclone speed three-phase mixer together with a prepared reagent and compressed air, the multilevel three-phase mixer makes the reagent be adequately contacted with the contaminants to form micro floc and makes the compressed air enter a releasing cavity after being adequately dissolved in the sewage, the dissolved gas in the floc is slowing released in the releasing cavity as the pressure is reduced, so the moisture inside the floc is squeezed out, the gas and solid floc form a porous hollow shape, the moisture content is remarkably reduced, the specific gravity is lighter, finally the floc after forming the scum enters a separating tank, the scum is scraped by a scraping machine above the separating tank, the scraped scum is discharged by a connected hopper to be subsequently dehydrated, the separated water overflows to a water outlet groove through a water outlet weir plate to be discharged through a water outlet pipe. According to the oil-contained sewage treatment method and the separating system, advantages of good treatment effect, reagent conservation, less sludge, less investment, simpleness in control, low maintenance expense and the like can be realized.

The invention discloses a preparation method for a transparent conductive metal network. The preparation method comprises the following steps: a) preparing a nanofiber network through electrospinning; b) evaporating a metal layer on the nanofiber network so as to obtain a metal-polymer network complex; and c) removing a metal in the metal-polymer network complex so as to obtain the transparent conductive metal network. The invention has the following beneficial effects: downstream tedious etching and patterning processes are avoided in preparation of a conductive film prepared from the flexible transparent metal network, demands of touch screens and display panels for patterning can be directly met, and online production can be realized.

The invention belongs to the technical field of steelmaking refractory materials, specifically relates to a refractory material product for controlling the flow rate of molten steel in a steelmaking process, namely a sliding plate brick, and in particular relates to an alloy combined unfired sliding plate brick. The alloy combined unfired sliding plate brick consists of 55-70% of aggregate, 20-35% of powder, 3-8% of carbon material, 2-7% of alloy additive and 4-15% of admixture. The sliding plate brick is prepared by adopting an unfiring process; the aluminum-magnesium alloy additive is added in the sliding plate brick, so that the sliding plate brick has a super strong anti-oxidation effect and the toughness of a sliding plate is enhanced; and the thermal shock resistance of the sliding plate brick is improved by introducing a nano high-purity graphite material. The produced alloy combined unfired sliding plate has a good use effect, the procedures are simple, the firing cost is saved, and the harm to the environment is reduced.

The invention discloses a self-climbing maintenance robot for a wind power generation tower. The self-climbing maintenance robot for the wind power generation tower comprises a climbing mechanism and a hoisting mechanism, wherein the hoisting mechanism is arranged above the climbing mechanism, the climbing mechanism comprises ring beams arranged in parallel vertically, the ring beams arranged in parallel vertically are connected with each other through a jacking cylinder arranged vertically, an annular construction platform is arranged on each ring beam, a bolt cylinder is arranged on each construction platform, and the end of each bolt cylinder is connected with a wedge-shaped block. The self-climbing maintenance robot for the wind power generation tower is light, convenient to install and transport and high in automation degree, and can climb up and down so as to greatly reduce the maintenance cost and improve the maintenance efficiency.

The invention relates to a steel pipe surface multi-stage grinding treatment machine. The steel pipe surface multi-stage grinding treatment machine comprises a mounting base, a fixed base, a limitingplate, grinding devices, inner support devices and a screw, the limiting plate is mounted between the upper end of the mounting base and the upper end of the fixed base, the grinding devices are evenly distributed between the limiting plate and the screw, the inner support devices are mounted on the centers of the grinding devices, and are mounted on the mounting base, the screw is mounted betweenthe mounting base and the fixed base through a bearing, the screw is located on the right below end of the limiting plate, and the problems that after an existing traditional grinding machine grindsa steel pipe, the surface is still not smooth, dust scrap materials remaining on the steel pipe surface can cause scratches and hollow points in the grinding process of the steel pipe, in the grindingprocess, the dust scrap materials floating in the air can appear, after being aspirated by a worker, the materials can cause body discomfort, and heat generated in the grinding process can damage thegrinding devices are solved.

The invention belongs to the field of flexible electronic materials, in particular to a preparation method of a PDMS sponge-based strain sensor material. The preparation process comprises the following steps: firstly, white granulated sugar and soft white sugar which are common in life are used as raw materials to prepare cube sugar; then PDMS sponge is prepared by taking cube sugar as a sacrificial template; sequentially dip-coating PDMS sponge into the chitosan solution and the graphene oxide dispersion liquid is carried out, and RGO / PDMS sponge is prepared by reducing of using a reducing agent ascorbic acid; finally a layer of silver nanowires (AgNWs) is applied to the RGO / PDMS sponge by using a dispensing method, and drying is conducted to prepare the AgNWs / RGO / PDMS sponge strain sensor material. The strain sensor material disclosed by the invention has good conductivity, the resistance can be obviously changed in compressive strain, meanwhile, the strain sensor material has excellent compression cycle stability, the preparation process is simple and easy to operate, and the strain sensor material is a new material with great development potential in the field of intelligent flexible strain sensors.

The present invention provides a washing machine which comprises the following components: an impeller (6) which is provided at the inside of a bottom of an inner tank (4) for stirring clothes; an upper frame (48) which is provided at the upper part of a housing (1); an air supply part (65) which is used for supplying air into the inner tank (4); a water supply valve (32) which is provided at the upper frame (48); a heat exchange pipe (12) for performing dehumidification for the wet air; and a static atomization generating unit (53) which is provided with a static atomization generator (55) that generates electrified particle water through static atomization. Through the action of a water supply valve (32) for injecting water into the heat exchange pipe (12) in a sterilization deodorization step, the electrified particle water effectively adheres and penetrates into the clothes for performing sterilization and deodorization.

The invention discloses an electric boiler capable of rapidly descaling. The electric boiler comprises a base, a faucet, a water inlet valve, a boiler body, bent pipes and a liquid level pipe, the boiler body is arranged at the upper part of the base, the outer wall of the boiler body sequentially communicates with the water inlet valve and the faucet from top to bottom, the outer wall of the boiler body communicates with the vertically-arranged liquid level pipe through the bent pipes at the upper part and the lower part, the top of the boiler body is fixedly provided with a motor through a motor seat, the motor is in transmission connection with a lead screw inside the boiler body through a coupling, a bearing seat is arranged at the inner bottom of the boiler body, moreover, the interior of the bearing seat is rotationally connected with the lead screw, and the exterior of the bearing seat is sleeved with a bearing seat isolation cover. In the electric boiler capable of rapidly descaling, a connecting plate is arranged inside the boiler body, then a plurality of vertically downward heating pipes are uniformly connected to the bottom of the connecting plate, compared with a traditional spiral heating pipe, the electric boiler has the advantages that the machining process is simple, and the water scale is not prone to adhesion.

The invention discloses a preparation method of a releasing agent for an iron casting machine, belonging to the technical field of releasing agents for metallurgy casting. The preparation method disclosed by the invention comprises the following steps of: weighing 15-17 parts of soybean oil and 17-19 parts of bentonite according to the mass ratio, and uniformly mixing to obtain a mixture A; weighing 20-25 parts of blast sludge, 10-13 parts of electric dust-removing ash of a sintering machine head and 16-23 parts of dust-removing ash of a bunker in the front of a furnace according to the mass ratio, uniformly mixing, and roasting at 600-800 DEG C for 30-35 min to obtain a mixture B; weighing 5-7 parts of limestone, 9-10 parts of alumina, 11-15 parts of dolomite, 3-5 parts of zirconia and 7-8 parts of iron red epoxy ester primer according to the mass ratio, adding the above components into the mixture B and mixing uniformly so as to obtain a mixture C; mixing the mixture C and the mixture A to obtain a mixture D; and mixing the mixture D and 800-1000 parts of water, and uniformly stirring to obtain the releasing agent. The releasing agent prepared by the invention can be effectively attached to the inside surface of a casting mould, therefore, the surface of a cast iron ingot is smooth.

The invention discloses environmental-protection ecological vegetation carpet by the utilization of municipal sludge. The environmental-protection ecological vegetation carpet is a layered structure, and successively comprises a non-woven fabric layer, a first plant fiber layer, a seed matrix mixing layer and a second plant fiber layer from the bottom to the top. The seed matrix mixing layer is composed of seeds and a matrix, thickness is 0.7-1.1 cm, dosage of seeds is 20-30 g / m<2>, and dosage of the matrix is 2.8-3.8 kg / m<2>. The matrix comprises the following ingredients (by weight): 60 parts of sludge with 30-50% of water content, 20-30 parts of coconut fibre waste and 10-20 parts of straw ash. The environmental-protection ecological vegetation carpet is prepared from wastes, is low-cost and has strong environmental protection property. The environmental-protection ecological vegetation carpet is relatively thin in thickness and can be stitched by a pin cushion mode. Structural power of the environmental-protection ecological vegetation carpet is strong. The environmental-protection ecological vegetation carpet is convenient for transport and construction, and has enough conservation ability of water and soil during the early stage of construction so as to effectively prevent water and soil loss during the early stage of construction. Grass seeds and scrub species can grow in the matrix, roots can be greatly attached to the matrix and soil, and protective property is good.

The invention discloses a mold release agent for a pig-casting machine, which belongs to the technical field of mold release agents for metallurgy and foundry. The mold release agent provided by the invention comprises, by mass, 20 to 25 parts of blast furnace sludge, 10 to 13 parts of ash collected from the head of a sintering machine through electric precipitation, 16 to 23 parts of fly ash collected from an ore groove at the front of a furnace, 15 to 17 parts of soybean oil, 5 to 7 parts of limestone, 9 to 10 parts of alumina, 11 to 15 parts of dolomite, 17 to 19 parts of bentonite, 7 to 8 parts of an iron red epoxy ester primer, 3 to 5 parts of zirconia and 800 to 1000 parts of water. According to the invention, the blast furnace sludge, the ash collected from the head of the sintering machine through electric precipitation and the fly ash collected from the ore groove at the front of the furnace which are wastes difficult for comprehensive utilization in a steelworks are used as a part of the components of the mold release agent, so the wastes are recycled and production cost of the steelworks is greatly reduced; moreover, the mold release agent can effectively adhere on the inner surface of a mold and forms an effective separating layer between molten iron and a pig mold, demolding can be realized without extra knocking of the cast iron machine, and a cast iron ingot has a smooth surface.

The invention belongs to the technical field of accessory cleaning, and provides a cleaning and packaging treatment method of original accessories of an excavator. The cleaning and packaging treatmentmethod of the original accessories of the excavator comprises the steps of pretreatment, ultrasonic cleaning, cleaning and drip washing, drying, oil immersion, packaging and the like. The efficiencyand the effect of the ultrasonic cleaning are improved by the ultrasonic cleaning after the pretreatment, after the ultrasonic cleaning, the original accessories are subjected to spraying and cleaningthrough a low-pressure spraying head, on the one hand, the low work efficiency is avoided, on the other hand, metal filing, oil stains and the like on the surface of a cylinder cover of an oil cylinder can be cleaned up to ensure effective attachment of rust-proof oil after oil immersion is carried out, and the rust-proof effect of the cylinder cover of the oil cylinder is improved; furthermore,the cylinder cover of the oil cylinder is fully dried through a high-pressure air nozzle, the drying is realized, and the excess metal filing can be further completely removed; in addition, after thecylinder cover of the oil cylinder is impregnated in an impregnation pond filled with the rust-proof oil, the cylinder cover is drained off through a dripper to avoid being filled with too much the rust-proof oil, the effects on packaging and transportation are avoided, each cylinder cover of the oil cylinder is packed by a air bubble film and a carton, so that effective protection on the cylindercovers of the oil cylinders is realized.

The invention relates to an aviation application type mesotrione water suspending agent and a preparation method thereof. The water suspending agent comprises the following components in percentage byweight: 10-40% of a mesotrione technical material, 1-6% of a wetting dispersant, 0.5-5% of a thickening agent, 0.1-0.5% of a defoaming agent, 2-6% of an antifreezing agent, 0.1-1% of a preservative,0.1-0.3% of a pH regulator, 0.1-1% of a spraying auxiliary agent, and the balance of deionized water for complementing the total weight percentage to 100%. Compared with the prior art, the water suspending agent provided by the invention has a novel auxiliary agent system, the volatilization drift loss of the mesotrione in a spraying process by using an unmanned aerial vehicle is reduced, the improvement of the utilization efficiency of the pesticide is facilitated, and the environmental pollution is reduced. With the combination of the pesticide spraying technology of unmanned aerial vehicles, the aviation application type efficient environment-friendly mesotrione water suspending agent has strong wettability, is obviously enhanced in adhesive force on plant leaves, and is an efficient green aviation application type mesotrione water suspending agent.

The invention discloses a falling-off-preventing metal coating and a preparation method thereof. The falling-off-preventing metal coating comprises raw materials in parts by weight as follows: 10-20 parts of polyether silicate ester, 20-30 parts of gamma-valerolactone, 40-60 parts of 2-ethyl-1,6-hexanediol, 10-50 parts of zinc, 10-20 parts of calcium oxide, 2-5 parts of an anti-rusting agent, 100-120 parts of nano-silica, 50-80 parts of nano-titania, 10-60 parts of thiourea, 20-30 parts of diammonium hydrogen phosphate and 40-50 parts of water. The preparation method of the falling-off-preventing metal coating comprises steps as follows: polyether silicate ester, gamma-valerolactone, 2-ethyl-1,6-hexanediol, zinc, calcium oxide, the anti-rusting agent, thiourea, diammonium hydrogen phosphate and water are mixed uniformly, then the remaining components are added, and a metal surface subjected to deoiling, annealing and borax processing is coated with an obtained solution and is dried and sintered. The coating can be effectively attached to the metal surface, thereby preventing metal from rusting and oxidation.

The invention discloses a flexible noiseless self-sinking type non-slip floor. The flexible noiseless self-sinking type non-slip floor comprises a composite surface layer and a non-slip film layer, and the non-slip film layer is provided with non-slip convex lines, non-slip concave lines or bottom lines composed of the non-slip convex lines and non-slip concave lines, wherein the bottom lines are unclosed bottom lines with openings. Compared with the prior art, the flexible noiseless self-sinking type non-slip floor has certain flexibility in component and structure, self-sinking type slipping stopping is formed, and the floor can be attached to the ground perfectly. By means of the design of a multilayer texture structure and the bottom lines, a good sound eliminating effect is achieved; by means of the unclosed bottom lines, ventilation is achieved, moisture can be discharged easily, moving stopping and slipping stopping are effectively achieved at the same time, and the floor face can be stably attached to the ground. The specific gravity of 1.9 tons per cubic meter or above can be achieved by the floor, and therefore the floor can be effectively attached to the ground through the weight of the floor and the non-slipping bottom lines, and the noiseless self-sinking type non-slip floor cannot move freely.

The invention provides a self-circulation autotrophic nitrogen removal bioreactor. A bioreactor body is in a cylindrical structure, externally sleeved with an annular backflow annular cavity and provided with a microporous aeration plate, a rotary water distributor, a gas collection hood, an anaerobic water distribution hood, a gas exhaust pipe, a three-phase separator and an anaerobic exhaust pipe sequentially from bottom to top. A backflow sieve mesh plate I, a water inlet pipe, an aerobic sludge discharging pipe, an anaerobic sludge discharging pipe, a backflow sieve mesh plate II, a wateroutlet groove and a water outlet pipe are sequentially arranged on the side wall of the bioreactor body from bottom to top. The whole bioreactor is functionally partitioned into an aerobic reaction area, an anaerobic reaction area, a sedimentation separation area and a backflow area. The self-circulation autotrophic nitrogen removal bioreactor has great nitrogen removal efficiency, is efficient and stable in operation and has advantages that 1) great sludge retaining effects and high sludge concentration are realized; 2) adverse influences on the nitrogen removal performance of the reactor inan aeration process are avoided; 3) the integral nitrogen removal performance of the reactor is improved; 4) operating cost is saved.

The invention relates to a surface treatment process for enabling plastics to have an antibacterial function. The surface treatment process comprises the following steps: (1) degreasing the plastics: putting the plastics into a degreasing solution for carrying out degreasing treatment; (2) roughening the plastics: sequentially dipping the plastics into a roughening pretreatment solution and a roughening solution, and soaking; (3) neutralizing the plastics: mixing gylcol ester, sodium tripolyphosphate and water and evenly stirring, and dipping the plastics into a 30% sodium hydroxide solution for soaking; (4) catalyzing the plastics: adding trichloro-sym-diphenylurea and acetone into a catalytic solution and stirring, then adding silver nitrate and zinc nitrate into the obtained mixed solution, and stirring; putting the plastics into the mixed solution, soaking and standing; (5) treating by using oxidizing flame: calcining the plastics on the oxidizing flame; (6) carrying out vacuum treatment: spraying a catalytic solution, pumped into a spraying device, on the plastics under a vacuum condition; (7) drying the plastics. After the surface treatment process is used, a surface layer with the antibacterial function can be formed on the surface of the plastics, so that the antibacterial property of the plastics is effectively improved.

The invention discloses a preparation method of a conductive adhesive hydrogel. The method comprises the following steps of: carbon nanotubes are modified by dopamine; the modifiedcarbon nanotubes aregrafted to saccharides containing free carboxyl through an amide reaction; mixing acrylamide, the modified carbon nanotubes and the modified saccharides, and forming the hydrogel under the actions ofa crosslinking agent and an initiator. The modified carbon nanotubes can be stably dispersed in an aqueous solution and form hydrogen bonds with other substances and crosslinks with dynamic supramolecules in the hydrogel; the sugar grafted with the dopamine catechol structure can form a hydrogel network, so that the complexity of the hydrogel structure is improved, and the biocompatibility, the adhesion property and the toughness of the hydrogel are enhanced; the hydrogel has physicochemical properties such as electrical conductivity, self-adhesion, high toughness and biocompatibility. The method can be used for preparing conductive hydrogels in the fields of biomedicine, electronic skin, human-computer interface, human body activity monitoring, wearable electronic equipment and the like.

The invention discloses a preparation method of a silver / graphene / zinc oxide composite material capable of degrading formaldehyde. The preparation method is characterized by comprising the following steps: (1) preparing ZnO nanoparticles; (2) uniformly dispersing Ag nanoparticles on the ZnO nanoparticles through physical vapor deposition; embedding graphene into an Ag / ZnO nano composite structure in a chemical vapor deposition manner to form Ag / graphene / ZnO composite nanoparticles; furthermore, mixing the Ag / graphene / ZnO composite nanoparticles prepared by step (2) with coconut shell active carbon and polyethylene; sintering to obtain sintered active carbon particles rich in Ag / graphene / ZnO composite nanoparticles. According to the Ag / graphene / ZnO composite material prepared by the preparation method, the technical bottleneck that an existing product only can have a photocatalysis effect under ultraviolet light is broken through a surface plasma resonance effect of the silver nanoparticles under visible light; the Ag / graphene / ZnO composite material has the advantages of good photocatalysis effect, simplicity and high efficiency.

A method for repairing dam crack defects by using magnetic mortar comprises the following steps: Step 1, detecting concrete dam cracks by using ultrasonic waves, and determining the specific position, size and trend of the cracks needing to be repaired; 2, a construction working face is cleaned and repaired, and precipitates on the concrete surface of the dam are chiseled away; 3, the number, the position, the depth, the diameter and the distance of grouting holes are determined according to the specific position, the size and the trend of the crack, and the grouting holes are drilled through a drilling machine; 4, a grouting nozzle is embedded in the drilled grouting hole, a grouting pipe is inserted, a power source is arranged outside the working face, and a movable electromagnet with the magnetic force capable of being adjusted and controlled is placed; 5, the magnetic mortar is placed in a grouting machine, and the grouting machine is used for sequentially injecting the magnetic mortar into grouting nozzles through grouting pipes; the crack repairing method is used for solving the problem that in an existing crack repairing method, the mortar filling rate in a crack can not be well increased possibly due to water flow or gravity and the like.

The invention discloses a foliar fertilizer with ultrahigh adhesive force. The foliar fertilizer comprises cationic plant nutrient elements and also comprises a SiO2 sphere material for adsorbing thecationic plant nutrient elements. The invention provides the foliar fertilizer with ultrahigh adhesive force and a preparation method thereof. The foliar fertilizer contains the SiO2 sphere material capable of adsorbing the cationic plant nutrient elements; the SiO2 sphere material can adsorb cationic plant nutrient elements so as to realize loading; a rough structure on the surface of the SiO2 sphere material can be efficiently attached to micro-fuzz on leaves of crops; and therefore, a feasible path is provided for better realizing efficient retention of the foliar fertilizer on the leaves of crops and increasing the utilization rate of the foliar fertilizer, and the problems of poor fertilizer efficiency and environmental pollution caused by low foliar adhesion efficiency of traditionalfoliar fertilizers are solved.