132results about How to "Save resources and energy" patented technology

The invention discloses active powder concrete which is prepared by Portland cement, steel slag powder, fly ash, silicon ash, effective water reducing agent, river sand, mixing water and steel fiber with the mass ratios of 0.52 to 0.58 : 0.16 to 0.18 : 0.10 to 0.16 : 0.13 to 0.16 : 0.012 to 0.018 : 0.9 to 1.1 : 0.14 to 0.18 : 0.156 to 0.234. The preparation method thereof is as follows: each component is sequentially added into a stirring machine for being uniformly stirred and shaped; then after the components are maintained, the temperature is raised to 80 to 90 DEG C at the temperature rising speed of 15 to 20 DEG C / h and then constant temperature maintaining is carried out for 72 to 96h; then, the components are cooled to room temperature at the cooling speed of not more than 20 DEG C / h to obtain the active powder concrete product. The invention employs the industrial wastes like steel slag powder and fly ash to replace quartz powder, partial cement and silicon ash, and employs thin river sand to replace quartz sand to prepare the active powder concrete of 200 grade under the maintaining conditions of normal pressure below 100 DEG C, thus not only being capable of remarkably reducing the material cost and the shaping maintaining cost, but also playing important roles on saving resources and energies, protecting the environment and promoting sustainable development as a large amount of industrial waste slag is used.

The invention relates to a method for preparing a multifunctional composite nanophase material, which belongs to the technical field of functional materials. The method prepares the multifunctional composite nanophase material by composition of nanophase materials with transparent and heat-insulation functions and nanophase materials with self-cleaning and antifouling functions in proportion. The material has multiple functions of transparency, heat insulation, self-cleaning, antifouling, antibacterium and electrostatic prevention, and can be used for preparing a multifunctional additive or a functional plastic master batch in coating. The multifunctional composite nanophase material accords with the demand and the direction of the modern social development, and has wide development prospect on transparent substrates such as windows and doors of buildings, windows and doors of vehicles, transparent light fittings, telephone booths and newsstands.

The invention discloses light low-shrinkage super-high performance concrete which is prepared from cement, coal ash beads, silica fume, pottery sand, a brass coated steel fiber, shrinkage and viscosity reduction type water reduction agent, a water-retention shrinkage-reduction inner curing agent and water as main raw materials. According to the concrete, the pottery sand is adopted as aggregate, the self weight of the concrete is reduced, and a high-strength and dense 'arch housing' interface area is formed on the surface of the pottery sand by using a pre-mixing process, so that the interfacestrength is improved, and the mechanical properties and the anti-penetrability performance of the concrete are improved; due to the adoption of the shrinkage and viscosity reduction type water reduction agent and the coal ash beads, the working performance and the density of the concrete are improved; due to the adoption of the pre-wetted pottery sand and the developed water-retention shrinkage-reduction inner curing agent, reduction of wetness inside the concrete is retarded, the self-shrinkage and the drying shrinkage of the concrete are reduced, and the volume stability of the concrete isimproved. While the self weight of the concrete is reduced, the light low-shrinkage super-high performance concrete disclosed by the invention is good in working performance, mechanical property, anti-penetrability and durability, and has significant practical application values.

The invention relates to a method for preparing alumina by using kaolinite in coal measures or coal gangue as raw material with simple process and low energy consumption; by utilizing special influence of inner heat source (carbon) in the kaolinite in coal measures or coal gangue on calcination performance of the kaolinite in coal measures, the alumina is prepared after crashing, low temperature calcination, hydrochloric acid leaching, filtration, purification and fractional-step pyrolysis by fractional steps. The method for preparing the alumina has the advantages that the problems that calcination temperature of the prior art is high or calcination time is long as well as leaching temperature is high or leaching time is long are solved; process energy consumption is reduced; intermediate product of the purified and separated watery alumina is not required to be dried; the alumina is prepared directly by using the method of the pyrolysis by fractional steps; the process is simplified and operability is improved.

The invention belongs to concrete materials and in particular relates to reactive powder concrete which can be maintained at room temperature. The non-steamed reactive powder concrete of the invention is prepared by mixing cement, superfine steel slag powder, natural sand, steel fiber, water reducing agent and water in a mass ratio of 1: 0.10-0.25: 1.25-1.45: 0-0.25: 0.01-0.04: 0.15-0.28. In the invention, natural sand replaces quartz sand, the 200-grade reactive powder concrete is prepared by maintenance at room temperature, so raw material cost and concrete maintenance cost can be obviously reduced; a great amount of industrial residues are used, so the non-steamed reactive powder concrete has the advantages of low cost, sources conservation, waste recycling, environment protection and the like. The maintenance process of the non-steamed reactive powder concrete needs no high temperature or high pressure, so the production and construction processes are simplified. The non-steamed reactive powder concrete is applicable to production of thin-wall products or elongated members and can be used for producing reinforced concrete members such as plates, blocks and the other structure forms, so the market application prospect is promising.

The invention relates to the technical field of tunnel engineering and discloses a prefabricated assembly type tunnel inverted arch. The prefabricated assembly type tunnel inverted arch comprises multiple rows of splicing units sequentially arranged in the extending direction of a tunnel. Each row of the splicing unit comprises multiple splicing blocks with arc-shaped cross sections. Joint seams of adjacent splicing blocks in the splicing units and joint seams of adjacent splicing blocks in the adjacent splicing units are staggered. Connecting rebars connected with a tunnel arch wall are reserved at the tops of the outer side faces of the prefabricated blocks on the two sides of each row of the splicing unit. In the building process of the prefabricated assembly type tunnel inverted arch and a trench structure, the prefabricated assembly type tunnel inverted arch has the beneficial effects that the resource energy is saved, the construction pollution is reduced, the labor production efficiency is improved, the labor intensity of workers is lowered, and the quality safety level is increased; and the potential hazards that the stress of the tunnel is not uniform, the deformation is likely to generate and the cracking is likely to generate can be prevented. The invention further discloses a tunnel structure with the prefabricated assembly type tunnel inverted arch and a construction method of the tunnel structure.

The invention discloses a prefabricated reinforced concrete column with a high-performance concrete frame, which adopts a thought of partially prefabricating and partially casting in situ, and is composed of a prefabricated part and a cast-in-situ part. The prefabricated reinforced concrete column with the high-performance concrete frame comprises a prefabricated high-performance concrete hollow column, longitudinal bars arranged in the prefabricated high-performance concrete hollow column along the length direction of the column, reinforcing steel bars and stirrups which are equidistantly paved on the cross section of the prefabricated high-performance concrete hollow column, the reinforcing steel bars crossing the central cavity of the prefabricated high-performance concrete hollow column, and the end heads of the reinforcing steel bars connected to the inner sides of the stirrups, and cast-in-situ common concrete filled in the central cavity of the prefabricated high-performance concrete hollow column. The invention further provides a construction method of the prefabricated reinforced concrete column, the prefabricated high-performance concrete hollow column is capable of generating an annular constraining force on the cast-in-situ common concrete, and thus improving the bearing capacity of the prefabricated reinforced concrete column, improving the overall performance and anti-seismic property of the structure, improving the deformation capacity of the member during transport and hoisting processes, and achieving comprehensive improvement and enhancement of the stress performance and the user performance of the prefabricated reinforced concrete member.

The invention discloses anti-cracking steam-curing-free ultra-high-strength high-toughness concrete. The anti-cracking steam-curing-free ultra-high-strength high-toughness concrete is prepared from cement, fly ash, silica fume, a mineral activator with cementing property, gravel, river sand, steel fibers, a polymer emulsion, water and a shrinkage-reducing super-dispersing admixture, wherein the mineral activator with cementing property comprises waste prefabricated concrete set cement crystal seeds and desulfurized gypsum. By using the mineral activator with cementing property in the concrete, high-temperature steam curing and pressurized steam curing systems adopted in the ordinary ultra-high-performance concrete are eliminated; and the shrinkage-reducing super-dispersing admixture having the functions of super-dispersing cement, reducing shrinkage, decreasing viscosity and the like is adopted to enable the hydration activity of cement to give a full play so that the strength of the concretes has no obvious change after cement usage is decreased by about 10%; and meanwhile, the mineral activator and the admixture can effectively suppress the shrinkage of concrete. The concrete prepared by the preparation method is higher in strength, toughness and shrinkage resistance, low in cost and simple in preparation method and has important practical application value.

The invention relates to the technical field of tunnel engineering and discloses a tunnel bottom prefabricated assembly type tunnel structure. The tunnel bottom prefabricated assembly type tunnel structure comprises a primary support, a secondary lining, a drainage system and a filling layer. Six protrusions are arranged on the secondary lining, and the six protrusions are arranged at intervals in the transverse direction of a tunnel. Each protrusion extends in the extending direction of the tunnel. A box type plate prefabricated block and two T type plate prefabricated blocks located on the two sides of the box type plate prefabricated plate and connected with the box type plate prefabricated block are adopted for the filling layer. The box type plate prefabricated block comprises a top plate, a left vertical plate and a right vertical plate, wherein the left vertical plate and the right vertical plate are arranged on the two sides of the lower portion of the top plate. The left vertical plate, the right vertical plate, vertical plates of the two T type plate prefabricated blocks and the ends, away from the box type plate prefabricated block, of the two T type plate prefabricated blocks are correspondingly and fixedly connected with the six protrusions. By the adoption of the tunnel structure, the diseases of the delamination, cracking, bottom bulging, sinking, mud pumping and the like of the tunnel foundation can be solved effectively, the construction pollution is reduced, and the labor production efficiency is improved. The invention further discloses a construction method of the tunnel structure.

The invention provides a multifunctional environment-friendly emamectin benzoate aqueous solution and a preparation method thereof. The aqueous solution comprises the following components by weight percent: 1%-7% of emamectin benzoate, 1%-10% of an agent A, 1%-5% of a functional agent, 1%-6% of an agent B and or 0.1%-10% of other pesticide auxiliaries. The multifunctional aqueous solution does not contain any organic solvents, is uniform and clear in appearance, and is stable after long-term standing. Field tests prove that the multifunctional environment-friendly emamectin benzoate aqueous solution has the fast-acting property comparable to that of market missible oil, and has the pesticide-effect persistence obviously superior to that of the market missible oil; in addition, the growth of plants applied to the aqueous solution can be obviously improved. Therefore, the multifunctional environment-friendly emamectin benzoate aqueous solution is remarkably superior to the missible oil and other water-based forms.

The invention relates to full-lightweight ceramsite concrete and a preparation method thereof. The full-lightweight ceramsite concrete is prepared from, by weight, 278-339 parts of cement, 318-344 parts of ceramsite, 334-382 parts of pottery sand, 50-55 parts of coal ash, 35-42 parts of silica fume, 0.001-3 parts of triisopropanolamine, 0.5-3 parts of a water reducing agent and 0.001-3 parts of athickening agent. The method includes steps: subjecting ceramsite and pottery sand to surface pretreatment through alkyl alkoxy silane, prewetting ceramsite and pottery sand to achieve a saturated surface dry state, then sequentially feeding lightweight aggregates, cement, silica fume and coal ash into a forced mixer, and well mixing to obtain the full-lightweight ceramsite concrete. The full-lightweight ceramsite concrete prepared according to the method has advantages of light weight, high peaceability and effectiveness in inhibition of ceramsite floating and has a promising application prospect in the field of energy-saving construction engineering.

The invention discloses a method for improving and greening natural saline soil. The method comprises the following steps: (1), concealed conduits are laid in an experimental field at a depth of 60 cm at intervals of 5 m, the soil is leveled, the field is divided into small areas each of which is 5 m in width and 10 m in length, and field ridges which are 0.5 m in height and 0.5 m in width are arranged between the small areas for preventing side leakage; and before the rainy season, each small area is irrigated with saline water which contains 3 to 10 grams of salt per liter for twice in a manner that the use amount is 1000 to 1500 m<3> / hm<2>; (2), the soil is deeply turned, and meanwhile corn straws with 50 to 150 m<3> / hm<2> are added; (3), ameliorant I or ameliorant II with the use amount of 5000 to 9000 kg / hm<2> is applied after each small area is plowed; and (4), natural rainfall in the rainy season is utilized to wash off the soil, and the change of physicochemical properties of the soil is measured. The experimental results show that the method provided by the invention has the following advantages: harmful salinity in the soil can be reduced quickly; emergency of alkalization in the desalination process of soil can be avoided; greening plants can be planted and survive; physical properties of soil can be effectively improved; soil bulk density can be reduced; total porosity and final infiltration rate of soil can be increased obviously; and a favorable soil environment can be provided for greening plants to grow better for a long term.

The invention provides an environment-friendly emamectin benzoate aqueous solution and a preparation method thereof. The environment-friendly emamectin benzoate aqueous solution comprises the following ingredients by weight percent: 1-7% of emamectin benzoate, 1-10% of an agent A and 1-6% of an agent B. The aqueous solution does not contain any organic solvent, is uniform and clear in appearance, and is stable after long-term standing; the insecticide effect is good, and therefore, the environment-friendly emamectin benzoate aqueous solution is obviously superior to missible oil and other water-based forms.

The invention particularly discloses a board appearance quality comprehensive quantitative evaluation method. The method solves the problems that existing board appearance quality evaluation is not accurate and low in efficiency, and online detection and evaluation are difficult to achieve. The board appearance quality comprehensive quantitative evaluation method includes the following steps that a board image is acquired, characteristic parameters of board appearance quality are measured, a knot influence coefficient h, a crack position influence coefficient k and a crack length influence coefficient p are constructed, a board appearance quality comprehensive quantitative evaluation measure value Q is determined accordingly, and Q is divided into four grades to define boards with different qualities. By means of the method, the defect that a traditional board appearance quality comprehensive quantitative evaluation method is too subjective or evaluation is not accurate due to too many influence factors is overcome, the board appearance quality comprehensive quantitative evaluation method can be applied to a wider range of fields, and a novel board appearance quality evaluation system can be constructed in combination with a computer image processing method and the like.

The invention discloses modified rubber particle lightweight ultra-high performance concrete and a preparation method thereof. The concrete is prepared from cement, fly ash microbeads, silica fume, pottery sand, rubber particles, copper-plated steel fibers, waterborne epoxy resin, a water-retaining shrinkage-reducing internal curing agent, a water reducing agent and water as main raw materials, wherein the rubber particles are prepared by crushing waste tires and then modifying the crushed waste tires. The modified rubber particle lightweight ultra-high performance concrete has the advantagesof light weight, high strength, high impact toughness, abrasion resistance and good volume stability, and has practical application value.

The invention discloses a prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame. The prefabricated and assembly type steel reinforced concrete column adopts an idea of partial prefabricated assembly and partial casting in situ and comprises a prefabricated part and a cast-in-situ part. The prefabricated assembly type steel reinforced concrete column comprises a prefabricated high-performance concrete hollow column, longitudinal bars, section steel, stirrups and cast-in-situ common concrete, wherein the longitudinal bars are arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the section steel is arranged in the prefabricated high-performance concrete hollow column along the column-length direction; the stirrups are spread on the cross section of the prefabricated high-performance concrete hollow column at equal intervals; the longitudinal bars and the section steel are enclosed by the stirrups; a central cavity of the prefabricated high-performance concrete hollow column is filled with the cast-in-situ common concrete. The invention also provides a construction method. The prefabricated and assembly type steel reinforced concrete column with a high-performance concrete frame and the construction method disclosed by the invention have the advantages that the hollow prefabricated high-performance concrete column can generate circumferential constraining force for the cast-in-situ common concrete, so that the bearing capability is improved, the whole performance and the seismic resistance of the structure are improved, the deformation capability of a member in the process of transportation and lifting is improved, and the comprehensive improvement and enhancement of the stressing performance and the use performance of the prefabricated steel reinforced concrete member are realized.

The invention relates to a method for preparing titanium dioxide thin films through a room temperature sputtering method. The titanium dioxide thin films with different degrees of crystallinity are prepared through the direct current magnetron sputtering method. A target material is a pure titanium target; the background vacuum degree is 10<-4> Pa or less; sputtering gas is argon and oxygen; the total pressure intensity is 0.5-2.5 Pa; the oxygen partial pressure is 50% or less; the distance between the target material and a base material is 7-20 cm; the initial temperature of the base material is 15-35 DEG C; the power of a direct current power source applied to the target material is 300-900 W; and the depositing time is 5-30 min. The complete amorphous or partial crystallographic titanium dioxide thin films are obtained. According to the method for preparing the titanium dioxide thin films through the room temperature sputtering method, the thin film preparation condition is mild, equipment is simple, and resources and energy sources are saved.

The invention provides a quick hardening early strength phosphorous slag-based cementitious material which is composed of granular electric furnace phosphorus slag, graphite tailings, cement clinker, phosphogypsum, aluminum sulfate and an alkali component, wherein the alkali component is prepared by mixing sodium silicate and sodium hydroxide. A preparation method for the quick hardening early strength phosphorous slag-based cementitious material comprises: grinding the granular electric furnace phosphorus slag, the graphite tailings and the cement clinker, respectively: grinding the granular electric furnace phosphorus slag till the specific surface area of the granular electric furnace phosphorus slag is 450-510 m2 / kg, grinding the graphite tailings till the specific surface area of the graphite tailings is 410-460 m2 / kg and grinding the cement clinker till the specific surface area of the cement clinker is 370-420 m2 / kg; and then uniformly mixing the ground granular electric furnace phosphorus slag, graphite tailings and cement clinker respectively with other components, namely phosphogypsum, aluminum sulfate and alkali component in a mass ratio. The cementitious material is the phosphorous slag-based cementitious material which has the characteristics of quick hardening and early strength and the setting time, the safety and the mechanical properties of the cementitious material meet the requirement of GB175-2007 on P.O42.5R common silicate cement. According to the quick hardening early strength phosphorous slag-based cementitious material provided by the invention, high-efficient utilization of phosphorus slag and graphite tailings can be further promoted, the resources and energy resources are saved, and the environment is protected.

The invention provides a production process of complex phosphate fertilizer, which comprises the following steps: (1) uniformly mixing phosphorus-containing waste ash and calcium superphosphate according to weight ratio 0.9-1.1:0.9-1.1, obtaining complex fertilizer A; (2) uniformly phosphor slag and filter cake according to weight ratio 0.9-1.1:1.8-2.2, obtaining complex fertilizer B; (3) uniformly complex fertilizer A and complex fertilizer B according to weight ratio 0.9-1.1:0.9-1.1, obtaining complex fertilizer C; (4) uniformly complex fertilizer C and pan ash according to weight ratio 0.9-1.1:3.6-4.4, obtaining complex fertilizer D; (5) uniformly complex fertilizer D and white fertilizer according to weight ratio 0.9-1.1:1.8-2.2, obtaining the finished product. Compared with the prior art, the invention has the beneficial effect that the 'three wastes (waste gas, waste water and industrial residue)' raw material can be used for producing complex phosphate fertilizer, thereby reducing production cost, saving energy resource, and producing products with stable quality, which accords with the national standard.

The invention belongs to the technical field of organic waste liquor and specifically relates to a method for incinerating iodine-containing organic waste liquor, purifying and treating tail gas and a system thereof. The purpose of the invention is to disclose a method for harmlessly treating organic waste liquor and a system thereof, in order to reach the national emission standard. The technical solution of the invention is that the system for incinerating iodine-containing organic waste liquor, purifying and treating tail gas comprises a waste liquor incinerating system, an flue gas cooling system, a tail gas purifying system and a tail gas emission system, wherein the flue gas cooling system is arranged on the lower part of the waste liquor incinerating system and connected with the tail gas purifying system through an flue gas pipeline; the tail gas purifying system is connected with the tail gas emission system through the flue gas pipeline. The method and the system have the beneficial effects that efficiency is high, energy is saved, circulation solution evaporation is adopted to absorb heat so that the flue gas can be quickly cooled, and quenching spray liquor is recycled to save resources and energy in maximum. According to the tail gas purifying system, iodine from combustion flue gas is recycled so that the tail gas is environmentally friendly and emitted on standard.

The invention provides a method for producing low phosphorus steel or extra-low phosphorus steel by using a limestone slagging-single slagging method, and belongs to the technical field of steelmaking. The method for producing low phosphorus steel or extra-low phosphorus steel by using the limestone slagging-single slagging comprises the steps that when slagging is conducted by using limestone, the oxygen consumption range of ton steel is controlled in 40-65 cubic meters, and the total adding amount of ton steel, the limestone and dolomite is 40-100 kg; the dolomite is about 1 / 4-1 / 5, accordingto converter capacity, the oxygen supplying intensity is controlled at 2-5 cubic meter / cent.ton steel, the alkalinity of final slag is controlled at 3. 0-6. 0, and the oxygen lance position is controlled within about 50% range of the decarbonization gun position; the furnace atmosphere is adjusted, the molten slag temperature is controlled between 1450-1630 DEG C, the adding batch of the limestone is controlled at 2-20 times, the eight of each batch of limestone is 30-0.5 kg / ton steel, and molten iron can be efficiently dephosphorized; and the single slagging method can produce low phosphorussteel or extra-low phosphorus steel. According to the method for producing low phosphorus steel or extra-low phosphorus steel by using the limestone slagging-single slagging, the goal of dephosphorization can be achieved by easy operating, resources and energy can also be reduced, and workers easily master the method for producing low phosphorus steel or extra-low phosphorus steel by using the limestone slagging-single slagging.

The invention relates to a prefabricated reinforced concrete beam with transverse steel partition boards. By adopting the idea of partial prefabrication and partial cast-in-situ, the prefabricated reinforced concrete beam is composed of a prefabrication part and a cast-in-situ part, and specifically includes: a precast U-shaped high-strength concrete groove; cast-in-situ common concrete 1 filling the precast U-shaped high-strength concrete groove; several transverse steel partition boards that are disposed in the precast U-shaped high-strength concrete groove and are perpendicular to the groove length direction; several closed stirrups that are disposed in the precast U-shaped high-strength concrete groove and are perpendicular to the groove length direction; several longitudinal bars 1 that are disposed at the bottom of the precast U-shaped high-strength concrete groove and are parallel to the groove length direction; and a cast-in-situ frange plate disposed at the top of the precast U-shaped high-strength concrete groove. The invention also provides a construction method of the beam. The construction method provided by the invention can improve the longitudinal anti-shearing effect between precast concrete and cast-in-place concrete, at the same time prevents lateral damage, and improves the crack resistance, durability and fire resistance of the beam.

The invention discloses a cement base adhesive for an electric porcelain insulator. The cement base adhesive comprises the following components in percentage by mass: 22-42% of cement, 5.5-12.5% of mineral powder, 2-7.5% of silicon micro powder, 35-64% of quartz sand, 0.25-0.7% of a polycarboxylic acid water reducer, 0.015-0.099% of lithium carbonate, 0.025-0.06% of a defoaming agent and 7-15% of water. The cement base insulator adhesive disclosed by the invention is composed of Portland cement, a mineral admixture, an additive and the like, and has good working performance, mechanical properties and durability. The compression strength of 3 days can reach 75MPa, the compression strength of 11 days can reach 100MPa, the compression strength of 28 days can reach 122MPa, and the flexural strength of each stadium is greater than 12.5MPa.

The invention provides a multifunctional environment-friendly acetamiprid aqua, comprising, by weight, 1 to 5% of acetamiprid, 1 to 10% of an agent A and 1 to 5% of a functional agent. The agent A is one or more selected from the group consisting of an anionic surfactant containing a sulfonic acid group, an anionic surfactant containing a sulfuric acid group and an anionic surfactant containing a carboxylic group. Preferably, the aqua may further comprise an agent B accounting for 1 to 5% of the total weight of the aqua. The invention also provides a preparation method for the multifunctional environment-friendly acetamiprid aqua. The multifunctional environment-friendly acetamiprid aqua does not contain any organic solvent and / or corrosive solvent, is a uniform and clear solution and has indoor insecticidal activity similar to that of acetamiprid missible oil. Thus, the aqua provided by the invention is obviously better than missible oil and other water-based dosage forms.

The invention discloses a treatment method of copper-containing micro-etching waste liquid. The method comprises the following steps: (1) reducing: adding reducing iron powder into the copper-containing micro-etching waste liquid, fully reacting, performing solid-liquid separation, collecting a filter cake, and feeding filtrate into a next procedure; (2) complexing: adding a Cu heavy metal ion collecting agent into the filtrate obtained in the step (1), complexing, depositing, performing solid-liquid separation on a solution formed after complexing, collecting a filter cake, and feeding filtrate into a next procedure; (3) performing oxidative polymerization: oxidizing ferrous sulfate in the filtrate obtained in the step (2) to produce polymeric ferric sulfate, and removing CODcr in the waste water. The copper-containing micro-etching waste liquid produced during electronic manufacturing is treated and comprehensively utilized, so that the environment is protected, resource energy is saved, and heavy metal copper and polymeric ferric sulfate serving as a water purifying agent in sewage treatment plants are provided for the development of the national economy. The treatment method is low in cost, small in investment, low in running cost, and suitable for industrial production.

The invention provides an environmental-friendly thiamethoxam aqua which is uniform and clarified in appearance and stable in long-term placement. The environmental-friendly thiamethoxam aqua contains the following ingredients in percentage by weight: 1-5% of thiamethoxam and 1-10% of action agent A, wherein the action agent A is one or more selected from sulfonic acid group containing anionic surfactant, sulfuric acid group containing anionic surfactant and carboxyl group containing anionic surfactant; preferably, the environmental-friendly thiamethoxam aqua provided by the invention can also contain an action agent B which is 1-6% the total weight of the environmental-friendly thiamethoxam aqua; the action agent B is selected from non-ionic surfactant and / or natural macromolecular surfactant. The invention further provides a method for preparing the environmental-friendly thiamethoxam aqua. Shown by tests, the indoor killing activity on brown plant hoppers of the environmental-friendly thiamethoxam aqua provided by the invention has no significant difference from that of a commercially-available thiamethoxam aqueous dispersion with concentration which is the same as that of the environmental-friendly thiamethoxam aqua.

The invention provides a multifunctional environmental-friendly thiamethoxam aqua. The multifunctional environmental-friendly thiamethoxam aqua contains the following ingredients in percentage by weight: 1-5% of thiamethoxam, 1-10% of action agent A and 1-5% of functional agent, wherein the action agent A is one or more selected from sulfonic acid group containing anionic surfactant, sulfuric acid group containing anionic surfactant and carboxylic acid group containing anionic surfactant; preferably, the multifunctional environmental-friendly thiamethoxam aqua can also contain an action agent B which is 1-6% the total weight of the multifunctional environmental-friendly thiamethoxam aqua. The invention further also provides a method for preparing the multifunctional environmental-friendly thiamethoxam aqua. Proved by experiments, the indoor insecticidal activity of the multifunctional environmental-friendly thiamethoxam aqua provided by the invention is equivalent to that of a thiamethoxam aqueous dispersion with concentration which is the same as that of the multifunctional environmental-friendly thiamethoxam aqua. The thiamethoxam aqua provided by the invention does not contain any organic solvent, is of a uniform clarified solution in appearance and is stable in long-term placement, so that the thiamethoxam aqua is obviously better than emulsified oil preparations and other water-based preparation forms.

The invention provides a reactive powder concrete doped with granite powder and a preparation method thereof, belonging to building materials. The reactive powder concrete doped with the granite powder is prepared from raw materials of cement, silicon ash, a water reducing agent, river sand, water and the granite powder. The method comprises the following steps: uniformly spreading the granite powder in a tray, then placing the tray in an oven and carrying out drying and sieving, and removing impurities in the granite powder; cleaning a test mold, removing debris inside the test mold, coating the inner surface of the test mold with a layer of machine oil and a layer of a mold release agent; pouring the cement, the silicon ash, the river sand and the granite powder into a mixer, and carrying out dry mixing; then adding the water dissolved with the water reducing agent, and carrying out stirring; pouring the obtained product in the test mold, then placing the test mold on a vibrating table, carrying out vibration until the surface of the test mold emerges slurry, then carrying out stopping, and cutting excess concrete with a spatula until the surface of the test mold is smoothed; and carrying out standing and demolding, then transferring a demolded test specimen into an autoclave and carrying out autoclave curing, and after autoclave curing is completed, carrying out transferring into a standard curing room and carrying out curing until a specified age of concrete is achieved so as to obtain the reactive powder concrete doped with the granite powder.

The invention discloses a honeycomb lamination hollow structure of a 3D printing alloy material and a vehicle component manufactured by the same. The structure comprises a hollow sphere surrounded by multiple edges; six squares 1 and eight regular hexagons are arranged on the surface of the sphere; the six squares 1 are respectively positioned in the right upper, right lower, right front, right back, right left and right directions of the surface of the sphere; every two squares 1 are connected through one regular hexagon; each square 1 and each regular hexagon share one edge; and every two adjacent regular hexagons share one edge. The honeycomb lamination hollow structure of the 3D printing alloy material can greatly improve the crushing resistance, the shock resistance and the toughness; and the vehicle component manufactured by the hollow structure can largely reduce the vehicle body weight, saves the energy, prominently improves each vehicle safety performance, and achieves the purposes of overall interweaving and tighter structure.

An aerobic granular sludge treatment facility comprises a rectangular reaction tank and a sewage inlet pipe. The rectangular reaction tank is provided with a partition board and is divided into a water inlet area and a reaction area by the partition board, a water outlet of the sewage inlet pipe is positioned at the bottom of the water inlet area, a plurality of frame screen boards which are approximately parallel to each other are respectively placed in the water inlet area and the reaction area, the partition board is approximately perpendicular to the frame screen boards, a plurality of water inlet holes are disposed on the partition board, aeration heads are arranged at both the bottom of the water inlet area and the bottom of the reaction area, a blowdown pipe is positioned at the bottom of the water inlet area, a siphon decanter is mounted at the tail end of the reaction area, a water inlet end of the siphon decanter is positioned on the upper portion of the tail end of the reaction area, and a water outlet end of the siphon decanter is positioned in a drainage channel. By the aid of the aerobic granular sludge treatment facility, flocculent activated sludge is granulated, treatment efficacy is greatly improved, accordingly, purification efficacy is enhanced, resources and energy are saved, engineering cost and operation cost are reduced by 20% at least, energy consumption is reduced by 10% at least, and sludge treatment and disposal expenses are reduced by about 10%.