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

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 discloses a preparation method and application of modified rice straw biochar, which belongs to the field of biological environmental protection technology, and comprises the following steps: 1) preparation of raw materials: collecting power plant fly ash and farmland rice straw and drying them separately , rice straw is crushed; 2) the fly ash obtained in step 1) is mixed with sodium hydroxide and roasted to obtain alkali-melted fly ash; 3) the alkali-melted fly ash obtained in step 2) is added to step 1) adding deionized water to the obtained rice straw, shaking, oscillating, drying, and pulverizing to obtain a mixture of rice straw and alkali-fused fly ash; 4) combining the rice straw obtained in step 3) with alkali-fused pulverized The ash mixture is pyrolyzed and pulverized to obtain modified rice straw biochar; the preparation raw material of the present invention is industrial and agricultural waste, which is cheap and easy to obtain, the preparation method is simple, the production cost is low, and its removal rate of pollutants is high, and the adsorption Large amount, no secondary pollution to the environment, which is helpful for the control and treatment of environmental pollution.

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 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.

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 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 provides a construction method for butt jointing of FRP sand-filled pipes. Grouting hole, the grouting hole extends to the outer peripheral surface of the sleeve pipe, insert two FRP sand pipes with the same outer diameter into the sleeve pipe from the left and right ends of the sleeve pipe to make them dock in the sleeve pipe, and then through the filling The grout hole is filled with an appropriate amount of sealing mortar, and the construction is completed after the sealing mortar is condensed. Adopting the technical scheme of the present invention, the FRP sand-filled pipe has the advantages of light weight, smooth inner wall surface, and strong corrosion resistance. By using sealing mortar for sealing, the sealing operation of the butt joint construction of the FRP sand-filled pipe is simplified, and the construction efficiency is improved. , compared with the prior art, it reduces the processing accuracy requirements for the corresponding seals in the butt joint construction, the sealing mortar is not easy to be damaged after being condensed, has a long service life, and improves the sealing effect.

The present invention discloses a biological organic fertilizer and a preparation method thereof. The biological organic fertilizer is made of raw materials of the following weight portions: 85 to 95portions of dejecta, 5 to 15 portions of organic waste and 0.00003 to 0.00001 portion of activated sludge. The liquid fertilizer or the solid fertilizer contains various nutrients that are required for the growth of plants or crops (comprising macroelements and microelements). The liquid fertilizer is colorless, odorless and transparent; the removal rate of harmful materials reaches to 99.9 percent; and the removal rate of germina reaches to 86.5 percent. The liquid fertilizer can be used as a foliar fertilizer, a hydroponic fertilizer, a spraying fertilizer, a fertilizer that can be used through trickle irrigation, and a fertilizer that can be used through irrigation; the solid fertilizer can be used as a ground fertilizer and a dressing fertilizer. The fertilizer can be used convenientlyand is quite suitable for greening houses, cities or gardens. And the preparation method has the advantages of simple process, easy operation and low cost. Moreover, the preparation method is conducive to the pollution control and the environmental protection.

The invention discloses a heat electric interlocking supplying device of H2 and FeCO3 in the battery technological domain, which is characterized by the following: adopting graphite as battery anode and waste steel as battery cathode; connecting external powder and two blocks of graphite board to form external electric field; setting H+selective film between two graphite boards; setting insulating baffle board between battery anode and cathode; injecting carbon dioxide and water between H+selective film and anode board of electric field; making H+ move toward cathode acted by electric field; generating hydrogen at battery anode; producing FeCO3 at battery cathode; outputting power; recycling energy of electrolyte; updating waste electrolyte.

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 relates to a method for recovering rare earth from waste cathode ray tube fluorescent powder through microbial leaching. The method is characterized by comprising the steps of (a), performing pretreatment: drying fluorescent powder until constant weight is achieved, and grinding the dried fluorescent powder with constant weight into fine powder with a grinding instrument for standby application; (b), performing microbe selection and culturing: selecting funguses or bacteria as leaching microbes, and selecting liquid cane sugar culture mediums and beef extract peptone culture mediums as culture mediums for separately culturing the funguses and the bacteria; (c), performing leaching treatment: adding levigated fluorescent powder into the culture mediums containing strains, putting the culture mediums with the levigated fluorescent powder into a vibrating culturing box, performing culturing for some time, performing filtration, obtaining waste slags, collecting thalli, and decomposing the thalli so as to obtain a leaching solution containing rare-earth elements. Through the adoption of the method, not only can the innocent treatment of the waste fluorescent powder be realized, but also rare earth resources can be recovered.

The invention discloses a preparation method and application of alkali-melting fly ash modified pig manure biochar, and belongs to the technical field of biological environmental protection, comprising the following steps: 1) preparation of raw materials: collecting power plant fly ash and farmland pigs 2) the fly ash obtained in step 1) is mixed with sodium hydroxide and then roasted to obtain alkali-fused fly ash; 3) the alkali-fused fly ash obtained in step 2) is obtained ash is added to the pig manure obtained in step 1), then deionized water is added, shaken, shaken, dried and pulverized to obtain a mixture of pig manure and alkali-fused fly ash; 4) the pig manure obtained in step 3) is obtained It is mixed with alkali-fused fly ash, pyrolyzed and pulverized to obtain alkali-fused fly ash modified pig manure biochar; the preparation raw material of the present invention is industrial and agricultural waste, which is cheap and easy to obtain, the preparation method is simple, and the production cost is low. The removal rate of pollutants is high, the adsorption capacity is large, and there is no secondary pollution to the environment, which is conducive to the control and governance of environmental pollution.

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 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.