35results about How to "Conducive to pollution control" patented technology

A process for preparing high-purity Acarbose includes such steps as heating the fermented Acarbose liquid for sterilizing, primary membrane separation, cooling, regulating pH value, desalting and decolouring, regulating pH value, stage-one membrane separation, stage-2 membrane purifying, concentrating, regulating pH value, macroreticular resin adsorption, pickling, collecting high-purity (98%) solution of Acarbose, regulating pH value, stage-3 membrane purifying, concentrating and drying. Its advantages are high extraction rate, less environmental pollution and low cost.

The invention discloses biomass-based N, S and P-containing co-doped porous carbon and an application thereof. The N, S and P-containing co-doped porous carbon is prepared successfully from palm kernel shell serving as a raw material through high-temperature carbonization and an activation method. The palm kernel shell is taken as waste biomass, so that a low-cost carbon source can be provided, and the heteroatoms of N, S and P are provided for a final product; in the presence of the heteroatoms, oxidation reduction pseudo-capacitance is provided; through heteroatom doping, irreversible change of oxygen-containing functional groups on the surface of a carbon material in charging and discharging processes can be suppressed; due to a synergistic effect shown after doping of the elements of N, S and P, the prepared carbon material shows an excellent electrochemical capacitance characteristic, and is a high-quality activated carbon production raw material.

The invention discloses a preparation method and application of biomass-derived ultra-high specific surface area activated carbon and belongs to the technical field of preparation of a carbon material and a lithium-sulfur battery. The preparation method utilizes biomass waste palm shells as carbon sources, comprises simple processes such as carbonization, activation, rinsing and drying and can produce the biomass-derived ultra-high specific surface area activated carbon. Concretely, the preparation method comprises mixing activated carbon and sulfur for a sulfur attachment reaction to obtain a palm shell activated carbon-sulfur composite material, mixing the palm shell activated carbon-sulfur composite material, conductive carbon black and polyvinylidene fluoride, dissolving the mixture in nitrogen-methylpyrrolidone to obtain mixed slurry, coating aluminum foil with the mixed slurry and carrying out drying to obtain a positive electrode material of a lithium-sulfur battery. The activated carbon has a high specific surface area, concentrated pore size distribution, high adsorption performances and high electrochemical performances.

The invention discloses a phytocide granule and a preparation method of the granule. The preparation method is characterized by including the steps of respectively adding phytocide and bentonite in carboxymethyl chitosan solution, uniformly mixing, dropping the mixed solution in cross-linking agent solution, heating to finish surface cross-linking to obtain solid particles and drying the solid particles to obtain the granular preparation of phytocide. In application, the granule can delay the release of phytocide, reduce drug consumption, prolong action time, improve utilization rate of phytocide and control the pollution of phytocide to the environment.

The invention discloses an expressway intelligent operation system through coordination of automobiles and pathways and a using method. The system comprises two pathways which are arranged at the ascending side and the descending side of an expressway in the same direction, and at least one veering rail is connected between the pathways at the two sides, the veering rail is communicated with the pathways, and the system further comprises transportation carts which can load automobiles and run on the pathways, control panels, control chips, locating devices, and a central running system, wherein the control panels, control chips, and locating devices are arranged on the corresponding transportation carts, and the central running system is used for regulating and controlling all the transportation carts. Through the method of combining the automobiles with the pathways, the purpose of conducting door-to-door transportation can be achieved, and the transportation time is saved; the central running system is utilized to intelligently regulate and control all the transportation carts, and thus unmanned driving is achieved; after getting rest in one transportation cart and getting off the transportation cart, a driver keeps a better mental state to drive on a common expressway, and thus an car accident caused by fatigue driving is avoided; it is guaranteed that green-hand drivers can be helped to safely drive on the expressway.

The invention discloses a multifunctional weir type oil fence. The multifunctional weir type oil fence is characterized by being formed by assembling a plurality of oil fence bodies, and each oil fence body comprises a floating body, a skirt body, a weir type oil skimmer used for recovering floating oil and a power system for generating electricity by utilizing the ocean currents; each floating body is a long-strip-shaped hollow cavity, each skirt body is arranged below the corresponding floating body and has the same length as the corresponding floating body, and each weir type oil skimmer is arranged at the middle part of the corresponding floating body; connectors are arranged at the two ends of each floating body and are used for transversely connecting the oil fence bodies; and the power system comprises a main shaft, an impeller, a generator in a generator cabin, a power transmission pipeline and a storage battery. In the use process, the multiple oil fence bodies are connected transversely through the connectors and put in a sea surface with oil spillage, one ends of steel cables are fixed under the skirt bodies, the other ends of the steel cables are anchored to the sea bottom, the oil fence bodies are arranged in an O shape or a C shape, the power system drives the impeller to rotate to generate the electricity through the underwater ocean currents, a drainage pump and an oil suction pump work to recover the floating oil, additional power is not needed, and therefore the multifunctional weir type oil fence is an environment-friendly spilled oil intercepting and recovering device.

The invention provides a method for improving the integrity of the cutting surface of an aluminum-lithium alloy workpiece, comprising the steps of: (1) obtaining the geometric parameters of the tool system and selecting the range of processing parameters; (2) formulating an orthogonal test table; (3) according to the formulated The orthogonal test table is cut under dry cutting conditions and liquid nitrogen cooling conditions in turn; (4) measuring the cutting surface integrity parameters of aluminum-lithium alloy workpieces after cutting under dry cutting conditions and liquid nitrogen cooling conditions; and (5) Analyze and test integrity parameters to determine optimized processing parameters.

The invention relates to the technical field of permeable concrete pavements, in particular to a semi-permeable pavement system and a pavement rainwater collection system, so as to solve the technicalproblems in the background technology. The semi-permeable pavement system comprises a cushion layer, a base layer, geotechnical cloth, a drainage pipe layer, a permeable concrete lower surface layerand a permeable concrete upper surface layer which are sequentially arranged from bottom to top, and a plurality of water permeable holes are formed in the pipe wall of the drainage pipe. The semi-permeable pavement system prepared from the solid waste material can achieve the effects of collecting and discharging rainwater, effectively supplement underground water and relieve sharp drop of urbanunderground water, is beneficial to urban rainwater management and water pollution treatment, and has relatively high economic and social benefits.

The invention relates to the field of building materials, in particular to a fly ash cementing material. The fly ash cementing material comprises the following raw materials in parts by mass: 50-60 parts of pulverized coal furnace fly ash, 25-35 parts of slag, 5-10 parts of gypsum, 5-10 parts of steel slag, 1-5 parts of a chemical exciting agent, 0.1-0.5 part of an alkaline water agent and 0.1-0.5 part of a defoaming agent, wherein the chemical exciting agent comprises the following components in percentage by mass: 80-90% of aluminum sulfate, 1-5% of calcium aluminate and 5-15% of sodium hydroxide. According to the fly ash cementing material, the early strength of a product is improved through multiple excitation of alkali excitation, sulfate excitation, calcium aluminate excitation and mechanical excitation, the problems of fly ash treatment and utilization are fully solved, the use amount of fly ash exceeds 50%, waste such as slag and steel slag is subjected to resource utilization, and the cost is reduced. And the method is beneficial to treatment of environmental pollution and has very high social benefits and economic benefits.

The invention relates to a method for producing pure silicon by using by-product silica gel in a phosphate fertilizer industry, which belongs to the fields of inorganic chemical industry, resource comprehensive utilization of the by-product silica gel in the phosphate fertilizer industry and the production technology of pure silicon. In the method, pure silicon is produced from the by-product silica gel in the phosphate fertilizer industry, which is used as a silicon source, by a carbon thermal reduction method. The method comprises the following steps of: a. pretreatment of raw materials; b. material mixing; c. reaction; d. cooling; e. crushing; f. wet purification; g. washing with water to be neutral after the wet purification, and then drying; h. vacuum refining; and i. finally cooling. The invention takes the by-product silica gel in the phosphate fertilizer industry as the silicon source, develops a new product and a new technology of the resource comprehensive utilization of the by-product silica gel in the phosphate fertilizer industry; the method has the advantages of simple process, low cost, high purity and the like, not only is favorable for the environmental pollution control in the phosphate fertilizer industry, but also is favorable for the protection and effective utilization of silicon resource associated with phosphate ores. Meanwhile, the method also brings good social and economic benefits.

The invention discloses a special balanced nutrition fertilizer for cultivation of millet. The provided balanced nutrition fertilizer comprises the ingredients of KNO3, KH2PO4 or Ca(H2PO4)2.H2O, KCl,MgSO4.7H2O or MgSO4.H2O, Ca(NO3)2.4H2O or 5Ca(NO3)2NH4NO3.10H2O, and FeSO4.7H2O. The experiment result shows that: compared with the current conventional fertilizing methods of farmers (compound fertilizers, urea, ammonium sulfate, potassium chloride and potassium sulphate), the yield per mu of the millet is increased by 1-8%, a use method is simple and convenient, the plant grows robustly and canresist diseases and insect pests, the use level of the pesticide is reduced, the pesticide and manpower costs are lowered, meanwhile, the quality and the taste of the millet are improved, the original flavors of the different millet varieties are recovered, and meanwhile, the storage endurance of the millet is also improved.

The invention belongs to the technical field of water environment treatment and discloses a biological mud collecting and desilting structure and an implementing method thereof. According to the technical scheme, a mud collecting tank is located at a bottom mud settled layer in the flow direction of an into-lake river and is perpendicular to the flow direction of the into-lake river; flow deflectors are arranged on the two sides, close to the into-lake river, of the front end of the mud collecting tank, each flow deflector and the flow direction of the into-lake river form an oblique angle, and the height range of the flow deflectors is between the lake river normal low water level and the lake river normal high water level; a flow blocking body is located at the rear end of the mud collecting tank and is perpendicular to the flow direction of the into-lake river, and the height range of the flow blocking body is between the lake river normal low water level and the lake river normal high water level; and a sealing body is arranged at the top in the mud collecting tank, and an observation facility capable of monitoring and measuring the settlement situation of bottom mud in the mudcollecting tank is arranged in the mud collecting tank. Through the biological mud collecting and desilting structure and the implementing method thereof, the bottom mud needing to be cleared can becontrollably restrained within a certain set range to settle, bottom mud pollution is effectively controlled, and regular repeated desilting construction can be implemented.

The invention discloses a black-odor urban river wastewater sampling method and device. Firstly, by means of a built-in gas and liquid dual-sampling mechanism, not only can black-odor urban river wastewater be sampled, but also air above a black-odor urban river can be sampled, follow-up detection of the wastewater and the air of the black-odor urban river is facilitated, and a researcher can know whether ambient air of the black-odor urban river is affected by the wastewater; secondly, under the action of an oxygen concentration detection alarm, oxygen content can be detected and alarmed, a worker is prevented from being in an oxygen-deficient environment, and sampling safety of the worker is improved; finally, by means of a lifting mechanism, wastewater in upper layer, middle layer or lower layer of the water area can be specifically sampled as required, and accuracy of detection research is improved. With adoption of the scheme, the researcher can know the contamination status of the black-odor urban river compressively, and follow-up water pollution control is facilitated.

The invention discloses a seedling raising method of an eastern white pine, which comprises the following steps of: carrying out seedling raising of the eastern white pine in winter by utilizing a greenhouse, prolonging the growth period of the eastern white pine, avoiding low-temperature freezing damage in the seedling period and improving the quality of seedlings; using quartz sand instead of river sand during seed lamination, which is beneficial to improving the working efficiency during dibbling; during seeding, using a degradable non-woven fabric nutrition pot instead of a seedling tray,a plastic nutrition pot or open field seeding, so that the bed changing or transplanting times can be effectively reduced, and the seedling stage does not exist; in the cultivation medium, using decomposed sheep manure instead of other decomposed organic fertilizers, so that the pH value of the soil can be improved, and the soil fertility can be improved; using peat soil instead of garden soil, sothat the organic matter content in the matrix is effectively improved, and the stability of the pH value of the soil is maintained; after the dibbling is finished, spreading a layer of 0.3-0.6cm sawdust, so that the seeds can be prevented from floating upwards during watering. The method improves the breeding quantity and quality of the seedlings and saves the cost.

The invention relates to the technical field of solid acid catalysts for biodiesel production, particularly to a preparation process and application of a Fe-based metal organic framework solid acid catalyst. The process comprises the following steps: 1) putting MIL-100 (Fe) in a dilute sulfuric acid solution for a hydrothermal reaction, and after the reaction is finished, separating out a solid product to obtain a precursor; 2) washing the precursor obtained in the step 1) with water until a washing solution is neutral so as to obtain a neutral precursor; and (3) drying the neutral precursor obtained in the step 2) to obtain the Fe-based metal organic framework solid acid catalyst. According to the preparation method, the solid acid catalyst with high catalytic activity and good stabilityis prepared based on the metal organic framework material (MIL-100 (Fe)) with dilute sulfuric acid as a sulfonation reagent, and is used for catalyzing an esterification reaction to prepare biodiesel.

The invention relates to a preparation method of a biomass algae-based lithium-sulfur battery positive electrode material. The method comprises the following steps of 1, cleaning algae, smashing and drying the algae, sieving the algae with 60-mesh sieve to obtain algae powder, and placing the algae powder in a high-temperature tubular furnace with an argon atmosphere to obtain carbide algae powder; 2, adding the carbide algae powder into a hydrochloric acid solution for immersion, and obtaining porous layered powder after drying; and 4, mixing the porous layered powder and sulfur powder, adding the mixture into a sand mill for nanometer ball-milling to obtain a sulfur carbon mixture, and obtaining the sulfur carbon composite material after vacuum hot melting under 140-160 DEG C. The biomass algae-based lithium-sulfur battery positive electrode material has favorable electrical property, is safe and has no pollution, the needed raw material is low in cost, and moreover, the composite material is short in preparation time, high in repeated operation and is suitable for industrial production.

The invention relates to a device for supplying power from aerial power generation robot to a high-rise lighthouse and belongs to the technical field of clean energy application. Current generated bythin-film solar cells irradiated by sunlight and mounted on the top surface of a carbon fiber frame of the aerial power generation robot is input into a second energy storage battery for storage through an electric lead and a photovoltaic controller, so that no pollution gas is emitted into the air in the process of photovoltaic power generation. A small part of the current output from the secondenergy storage battery powers a flying elevator and a wireless communication device while most of the current powers a receiving charging device on the high-rise lighthouse through a charging controller and an intelligent charging gun, and the current received by the receiving charging device is input into a first energy storage battery for storage through an electric lead. At night, a photosensitive self-control switch automatically turns on a circuit, and the current output from the first energy storage battery powers a beacon light through an electric lead and the photosensitive self-control switch to lighten navigation paths of night navigation ships. What the aerial power generation robot supplies to the high-rise lighthouse is 100% clean energy-photovoltaic power.

The invention relates to the technical field of pervious concrete pavements, in particular to a pervious concrete pavement slab system and a pavement slab rainwater collection system, , thereby solving technical problems in the background art. The pervious concrete pavement slab system comprises a cushion layer, a base layer, a leveling layer and a pervious concrete pavement slab which are sequentially arranged from bottom to top. The pervious concrete pavement slab is arranged on the upper surface of the leveling layer. The pervious concrete pavement slab comprises a pervious concrete pavement slab lower surface layer and a pervious concrete pavement slab upper surface layer; a drainage pipe is arranged at the bottom of the base layer; and a plurality of water permeable holes are formed in the pipe wall of the drainage pipe. The pervious concrete pavement slab system prepared from the solid waste material can achieve the effects of collecting and discharging rainwater, effectively supplementing underground water and relieving sharp drop of urban underground water, thereby realizing urban rainwater management and water pollution treatment effectively. The pervious concrete pavementslab system has higher economic benefits and social benefits.

The invention relates to a low-protein daily ration feed containing alanine, the low-protein daily ration feed is composed of 97%-99.9% of a low-protein basic daily ration and 0.1%-3% of alanine, andthe content of crude protein in the low-protein basic daily ration is 10%-25%. According to the feed, increasingly scarce protein resources are effectively saved, the cost of the feed and the cost ofthe breeding industry are remarkably reduced, nitrogen emission of animal waste is remarkably reduced, and environmental pollution is easily controlled.

The invention discloses a method for producing silicon carbide from a silica gel byproduct in phosphorous fertilizer production, belongs to the field of inorganic chemical industry, and relates to the technical fields of recycling of the silica gel byproduct in phosphorous fertilizer production and production of the silicon carbide. The silica gel byproduct in phosphorous fertilizer production is taken as a silicon source and the silicon carbide is produced through carbonthermal reduction; and the method comprises the following steps of: a, preprocessing raw materials; b, mixing the raw materials; c, reacting; and d, cooling. By taking the silica gel byproduct in phosphorous fertilizer production as the silicon source, a new product and a new technique for recycling the silica gel byproduct in phosphorous fertilizer production are developed. The method has the advantages of simple process and low cost; the obtained product has the characteristics of high purity, small granularity and the like; and the method is favorable for controlling the environmental pollution of the phosphorous fertilizer industry and protecting and effectively utilizing the silicon resource associated with phosphate rock, and brings good social and economic benefits.

The invention belongs to the technical field of cadmium-contaminated soil treatment, and discloses a cadmium-contaminated soil treatment device and a method thereof, and the cadmium-contaminated soiltreatment device comprises a cadmium pollution detection module, a main control module, a soil turning module, an improvement module, a planting module, a watering module, an analysis module, an alarmmodule and a display module. The modifier prepared by the modifier preparation method provided by the invention is added with a high-molecular compound, so that the form of cadmium in soil is changed, the toxicity of cadmium is reduced, and the absorption of plants to cadmium is reduced; meanwhile, the emission source is divided into a plurality of levels through the analysis module, and the environmental medium is divided into a plurality of classes; the total amount of the heavy metal cadmium discharged to different media is calculated, the total discharge amount of all pollution sources can be known, the contribution of the total discharge amount of the pollution sources to pollution is comprehensively mastered, pollution treatment is facilitated, and the analysis accuracy of the cadmium pollution sources is greatly improved.