126results about How to "Reduce pollution" patented technology

The invention discloses a preparation method of superfine fiber high-imitation grain synthetic leather. The preparation method comprises the following steps of: spinning sea-island composite fibers by utilizing nylon 6 and low-density polythene as raw materials, manufacturing non-woven fabric by utilizing the sea-island composite fibers, coating one surface of the non-woven fabric by utilizing high-solid-concentration polyurethane slurry, infiltrating the non-woven fabric by utilizing low-solid-concentration polyurethane slurry, enabling the non-woven fabric to pass through an aqueous solution of dimethylformamide after infiltrating, solidifying polyurethane and forming a cellular structure to obtain synthetic leather semi-finished products, enabling the synthetic leather semi-finished products to pass through methylbenzene to separate sea-component low-density polythene out of the sea-island fibers, peeling off the sea-island composite fibers to be superfine fibers, washing away methylbenzene through boiling water, and drying to obtain the superfine fiber high-imitation grain synthetic leather. The product manufactured by the method disclosed by the invention has the advantages of strong gradient, abundant hand feeling, fine and smooth surface wrinkles and strong toughness after being bent, and has the beneficial effects on aspects of pollution reduction, animal protection, ecological protection and the like.

The invention discloses an improved regulation and storage system for urban road rainwater collection and green land conservation. The improved regulation and storage system comprises a control system, a drainage ditch, a coarse filtration tank, a fine filtration tank, a regulation and storage tank and a back-flushing device, wherein the drainage ditch, the coarse filtration tank, the fine filtration tank, the regulation and storage tank and the back-flushing device are communicated in sequence, a frame-shaped filtration grille for filtering the rainwater collected by a rainwater perforated strainer is hung at the top end of a wall body of the drainage ditch, a filtration screen is arranged at the connecting position of the drainage ditch and the coarse filtration tank, a seepage well is communication with the regulation and storage tank through a drainage pipe, a filtration structure for filtering the rainwater is arranged at the top end of the seepage well, and the bottom of the seepage well is installed in a sponge water-storage layer. The regulation and storage tank comprises a side wall, a bottom wall and a plurality of watering water pipes, the back-flushing device comprises a water inlet pipe, a water pump, a back-flushing pipe and a blow-off pipe, and the bottom end of the coarse filtration tank and the bottom end of the fine filtration tank are communicated through a mud discharging pipe. The control system comprises a control unit, a magnetic valve and a plurality of humidity sensors. A liquid level sensor is installed on the upper surface of the section, where the regulation and storage tank is located, of an overflow pipe. The water pump, the humidity sensors and the liquid level sensor are all connected with the control unit.

The invention relates to a mineral separation method for recycling iron, rare earth, fluorite and niobium from iron tailings of associated multi-metal minerals, and belongs to the fields of mineral process engineering and comprehensive recycling of resources. The mineral separation method for recycling iron, rare earth, fluorite and niobium from iron tailings of associated multi-metal minerals comprises the following steps: carrying out low intensity magnetic separation and high intensity magnetic separation pre-concentration by taking bayan obo tailings as raw materials, then carrying out fluid bed roasting on obtained pre-concentrated concentrates, and carrying out low intensity magnetic separation operation on roasted minerals obtained by roasting so as to obtain weak-magnetism concentrates and rare-earth-containing weak-magnetism tailings; and carrying out rare earth flotation operation on the weak-magnetism tailings to obtain rare earth flotation concentrates and rare earth flotation tailings finally, then carrying out acid leaching process on the rare earth flotation tailings to obtain niobium-enriched slag and acid pickling tailings, and meanwhile, carrying out fluorite flotation operation on pre-concentrated strong-magnetism tailings to obtain fluorite flotation concentrates and fluorite flotation tailings. By the method, fluorite concentrates, iron core concentrates, rare earth concentrates and the niobium-enriched slag are obtained finally, and thus, the bayan obo tailings are utilized comprehensively.

The invention discloses a mechanical device, in particular a chain-plate compost turning machine for production of organic compost. The chain-plate compost turning machine comprises a frame, a travelling mechanism, a chain-plate turning mechanism, a lifting system and an automatic control system. A driven wheel set and a driving wheel set are mounted at front and rear ends of the lower portion of the frame respectively. The driving wheel set is driven by a travelling motor set which is connected through a spindle. The driving wheel set is disposed on a travel rail of the travelling mechanism, and meanwhile, the chain-plate turning mechanism and the lifting system are driven by corresponding motors, thus coordinative operation of the systems is achieved. The chain-plate compost turning machine has the advantages that two travelling motors are used for control so that continuous operation of the machine is ensured; compost material in a fermenting tank is thrown, aerated and mixed by a rotary chain-plate hooked-tooth turning and scattering mechanism, efficiency is high, turning distance is long, turning is thorough, fermenting period can be shortened effectively, and compost quality is improved; the chain-plate compost turning machine is more adaptive and flexible.

The invention relates to a method and equipment for the oil-water separation and wastewater purification and treatment of kitchen wastes. The method and the equipment can carry out field collection or wastewater purification and standarization treatment on the kitchen wastes swill or domestic wastewater in the fields of a restaurant, a hotel, a department, a house, milk plant, a food products factory, a brewery, a hospital, a beverage plant, a slaughterhouse, a chemical plant and the like, separates the swill into drainage oil and kitchen wastewater, continuously carries out fast and continuous purification treatment on the domestic wastewater anytime and anywhere and ensures that the quality of purified water achieves the nationally specified (GB18918-2002) emission standard of a town sewage processing plant. The heating and temperature-regulating type wastewater purification treating equipment disclosed by the invention has the advantages of small occupied area, high wastewater purification starderization speed, low wastewater treating equipment investment, low wastewater treatment cost, and the like. The method and the equipment which are disclosed by the invention have the advantages of good industrial practicability, novelty and creativity.

The invention discloses a synthetic method for a phosphorus-containing ZSM-5 molecular sieve. The method comprises the following steps: mixing a first organic template with an aluminum source, wherein in the obtained mixture, a mol ratio of the first organic template to Al2O3 in the aluminum source is 0.2-40: 1; treating the mixture in an enclosed reaction vessel at a temperature of 50 to 190 DEG C for 0.1 to 5 h and then carrying out cooling so as to obtain an intermediate product; and uniformly mixing the intermediate product with a second organic template, a silicon source and water and carrying out hydrothermal crystallization so as to obtain the phosphorus-containing ZSM-5 molecular sieve; wherein the aluminum source is an aluminum phosphate molecular sieve and / or silicon-phosphorus-aluminum molecular sieve. The method adopts a synthetic process route different from that in the prior art, abandons usage of high-cost silica-alumina gel as the silicon source and the aluminum source and can directly prepare the phosphorus-containing ZSM-5 molecular sieve, so synthesis cost is reduced.

The invention discloses industrial gas purification dust removal equipment, which comprises an air inlet pipeline, a cyclone separation tower, an electrostatic dust removal tower, a spraying tower, an activated carbon adsorption device and an air outlet pipeline, wherein the air inlet pipeline is arranged on an air inlet of the cyclone separation tower; a first centrifugal fan is arranged on the air inlet pipeline; an air outlet of the cyclone separation tower is connected with the air inlet of the cyclone separation tower; the air outlet of the cyclone separation tower communicates with an air inlet of the electrostatic dust removal tower; an HEPA (high efficiency particulate air) filtering net is arranged inside a pipeline for connecting the cyclone separation tower and the electrostatic dust removal tower; an air outlet of the electrostatic dust removal tower communicates with an air inlet of the spraying tower. The industrial gas purification dust removal equipment has the advantages that the structure is simple; the use is convenient; effective purification and dust removal can be performed on industrial waste gas; the purification effect is good; in addition, the environment pollution can be reduced; a protection effect is achieved on environment; meanwhile, industrial dust can be removed, so that the work environment of workers is more comfortable and healthy.

The invention disclose a total absorption superlaser energy meter which comprises a reflection cone and an absorption cavity, wherein the generatrix of the reflection cone is arc-shaped, the absorption cavity is formed by sealed connection of a base plate, an inner lateral plate, an absorption cylinder and a cover plate, the whole structure of the absorption cavity is concave, the wall of the absorption cylinder is arranged on the light path of a superlaser beam after the superlaser beam is reflected through the reflection cone, and the absorption cylinder is located behind the reflection cone in the front and back direction. According to the total absorption superlaser energy meter, the incident collimated light beam is reflected onto the wall of the absorption cylinder in an axial and circumferential two-dimensional beam expansion mode, the power density of laser irradiating on the wall of the absorption cylinder is reduced greatly, the light receiving area of the reflection cone is increased at the same time, and the laser irradiation bearing capacity of the reflection cone is improved; furthermore, due to the adoption of the cavity structure, the probability that the reflection cone is polluted by dust is effectively reduced, and meanwhile, the exit escape rate of laser is reduced and measurement accuracy of the energy meter is improved.

The invention discloses a modifying method for a polyamide film composite film, a modified polyamide film composite film and application thereof. The composite film comprises a polymer supporting layer and an initial polyamide layer, wherein the initial polyamide layer is prepared from polyamine and polyacyl chloride through interface polymerization reaction; the initial polyamide layer is subjected to surface modification to obtain a modified polyamide layer; surface modification comprises performing surface grafted polyamine compound treatment, surface grafted organic acid treatment, surfacemineralization treatment and surface atomization treatment on the initial polyamide layer in sequence; and the polyamide film composite film obtained by the modifying method has good hydrophilcity and contains antibacterial metal atoms on the surface, so that when being applied to membrane separation, the polyamide film composite film has obviously improved water flux and antibacterial and anti-pollution performance.

The invention discloses a method for preparing sodium antimonate from an antimony oxide ore via an alkaline approach. The method comprises the following steps: (1) leaching the antimony oxide ore, (2) purifying filtrate, and (3) oxidizing the purified filtrate. The method is high in recovery rate, the leaching rate of antimony is 95-99%, the direct recovery rate of sodium antimonate is 90-95%, the whole process is performed under an alkaline environment, the requirement on corrosion resistance of equipment is not high, no complicated pretreatment is required in the process, the needed raw materials are nontoxic and harmless, the alkaline liquid is recyclable, neither waste water nor waste gas is generated in the process, and waste residues are nontoxic and harmless.

The invention relates to a comprehensive treating device for disassembling oil shoes and recycling useful materials in the old shoes. The comprehensive treating device comprises a coarse smashing module, a fine smashing module and a screening and separation module, wherein in the coarse smashing module, a plurality of saw blades are evenly arranged on two shafts and can perform opposite meshed high-speed rotation to coarsely smash the oil shoes; in the fine smashing module, four roller wheels are arranged in a cavity body regularly, two groovy rollers with the same inner diameter can achieve primary fine smashing on the old shoes through opposite meshed differential-speed rotation, two polishing rollers with the different inner diameters and two groovy rollers with the different inner diameters can achieve secondary fine smashing on the old shoes through opposite meshed equal-speed rotation, the screening and separating module can utilize an air blower to blow air to layer different masses of old shoe particles in the cavity body, and then the old shoe particles are classified and recycled. The comprehensive treating device disclosed by the invention can effectively smash waste shoes, the sizes of the smashed particles can be set as an adjustable mode according to need, the smashed materials can be screened and collected according to different masses, a resource utilization rate is improved, and environmental pollution caused by directly incinerating or burying the old shoes and resource waste are reduced.

The invention discloses a system and method for producing hydrogen by directly electrolyzing urea-containing wastewater with renewable energy. The system comprises a renewable energy generation module, a power conditioning module, a urea-containing wastewater pretreatment module, an alkaline urea electrolytic hydrogen production module, a gas / liquid separation, drying and purifying module, an alkaline liquor circulating pump, a hydrogen storage tank and an anode product storage module, wherein an output end of the renewable energy generation module is connected with an input end of the power conditioning module, and an output end of the power conditioning module is connected with the alkaline urea electrolytic hydrogen production module. By means of the system, nearby in-time consumption of renewable energy power is facilitated, the hydrogen production cost is r educed, the tolerance of the hydrogen production system to the volatility and intermittence of a power supply is improved, a hydrogen production technology is combined with a water treatment technology, and while the hydrogen production energy consumption is reduced, environmental pollution is avoided; the applicability of the system is wide, the stability is high, the hydrogen produced by the system is high in purity, the process is simple, and industrial production is facilitated.

The invention provides methods for producing fuel ethanol by using cellulosic waste plants. One method comprises the following steps of: cleaning and grinding the waste plants, adding dilute sulfuric acid to lead hemicellulose to be hydrolyzed, filtering, adding lime in filtrate, and removing precipitation; and carrying out delignification treatment on residue, adding sulfuric acid, heating to lead cellulose to be hydrolyzed, diluting till the weight percentage concentration of the sulfuric acid is 30-40%, recycling the sulfuric acid, heating acidiferous sugar liquor again, hydrolyzing, adding calcium oxide for neutralization, and removing calcium sulfate. The other method comprises the following steps of: cleaning and grinding the waste plants, adding waste dilute sulfuric acid to lead hemicellulose to be hydrolyzed, filtering, then adding lime in filtrate, and removing precipitation; adding waste concentrated sulfuric acid in residue, heating, cooling, diluting, heating again, hydrolyzing, adding calcium oxide for neutralization, and removing calcium sulfate; and adding yeast in the product obtained by the method for fermentation, distilling, and dehydrating to obtain the finished product of the fuel ethanol. The methods greatly reduce the cost, have simple process, and are convenient for wide range of generalization and application.

The invention belongs to the technical field of catalysis and relates to a method for preparing a platinum-carbon catalyst which is high in activity and stability. The method comprises the following steps: 1, preparing a chloroplatinic acid alcohol solution : diluting the chloroplatinic acid with an alcohol solvent I so as to obtain the chloroplatinic acid alcohol solution; 2, preparing a sodium hydroxide solution : dissolving sodium hydroxide into an alcohol solvent II so as to obtain the sodium hydroxide solution; 3, preparing an activated-carbon-loaded platinum-carbon catalyst: adding the chloroplatinic acid alcohol solution prepared in advance in an activated carbon carrier, then adding the sodium hydroxide solution and carrying out microwave reduction; 4, cooling and drying, after completion of microwave reduction in the step 3, cooling the mixture to room temperature, adding deionized water, the volume of which is the same as that of the mixture, carrying out extraction filtration and washing, and carrying out vacuum drying on the catalyst. According to the invention, the operation is quick and simple, process stability and repeatability are good, active component particles are distributed uniformly, the particle size range is narrow and the fact that the particle size is controllable is realized according to the quantity of sodium hydroxide and the solvents; the catalyst prepared through the preparation method is high in activity and good in stability.

The invention discloses a preparation method of cellulose composite aerogel. The preparation method comprises the following steps: (1) preparing a cellulose solution, (2) sequentially adding N, N-methylene bisacrylamide and dopamine hydrochloride into the cellulose solution, and putting the mixture into an oven for reaction to prepare cellulose composite hydrogel, and (3) carrying out primary freeze drying, solvent replacement and secondary freeze drying on the cellulose composite hydrogel to obtain the cellulose composite aerogel. The cellulose composite aerogel prepared by the preparation method is good in structural stability, has impact resistance, and is simple and controllable in preparation method, low in pollution and low in cost.

The invention provides a down hole impacting rotary jetting mixing pile construction technology and device. The down hole impacting rotary jetting mixing pile construction device includes a drill rod, a down hole impacting device arranged at the bottom end of the drill rod, a mixing device connected to the lateral side of the drill rod or the down hole impacting device, and a nozzle arranged on the lateral side of the down hole impacting device. A communicating high-pressure air passageway is arranged among the drill rod, the nozzle and the down hole impacting device. The above down hole impacting rotary jetting mixing pile is adopted in the down hole impacting rotary jetting mixing pile construction technology. By means of the down hole impacting rotary jetting mixing pile construction technology and device, the stratum adaptability is high, and pollution and influences of industrial production to the environment are reduced.

The present invention relates to a process for purifying and concentrating 68Ga isotope produced by the irradiation with an accelerated particle beam of a 68Zn target in solution. The process according to the invention allows for the production of pure and concentrated 68Ga isotope in hydrochloric acid solution. The present invention also relates to a disposable cassette suitable to perform the steps of purification and concentration of the process.

The invention discloses a method for increasing the concentration of carbon dioxide in tail gas of a lime rotary kiln. The method is characterized by comprising the following steps: (1) the tail gas of the lime kiln passes through dedusting equipment to remove dust particles; (2) the dedusted tail gas is sprayed through a washing tower, the sprayed tail gas is desulfurized through a desulfurizingtower; (3) the desulfurized tail gas passes through a booster fan to enter a surge flask and then is conveyed into a carbon dioxide absorption tower, alkanolamine in the absorption tower absorbs the carbon dioxide, and the tail gas is metered and then emptied; (4) a carbon-dioxide-absorbed alkanolamine solution is pressurized through a rich solution pump to enter a regeneration tower; (5) the carbon-dioxide-absorbed alkanolamine solution is heated in the regeneration tower to desorb the carbon dioxide, the desorbed carbon dioxide is cooled, dried, analyzed and stored; and (6) a regenerated barren solution is cooled by a barren solution cooler and then pressurized through a barren solution pump to enter an absorption tower, and the carbon dioxide is absorbed again. An enrichment technologyfor the carbon dioxide in the tail gas of the lime rotary kiln brings certain economic benefits for enterprises while according with national industrial structure adjustment and environmental protection.

The invention provides a novel microbial seedling medium and a preparation method and application thereof. The novel microbial seedling medium is prepared from the following raw materials of microbial probiotics (having the capability of inhibiting bacteria, producing IAA (Indoleacetic Acid) and dissolving inorganic phosphorus), peat, vermiculite, pearlite, mushroom residue, composted chicken manure and water. No any chemical pesticide or fertilizer are added in the novel microbial seedling medium, and the environment is not polluted. The novel microbial seedling medium disclosed by the invention has the advantages that soil can be improved, the fertilizer efficiency can be increased, the soil of the root of a plant is enabled to be fluffy and not to harden, water retention and fertilizer retention are realized, and healthy and strong growth of the root is promoted; the novel microbial seedling medium enables vegetables to be tidy and strong in seedlings, deep green in leaves, developed in root system, loosened in texture, good in air permeability, good in root development, comprehensive in nutrition, high in yield and light in pest and disease damage, and the novel microbial seedling medium is an ideal medium for producing green and organic vegetables.

The invention relates to a preparation method of a halloysite nanotube / nanometer titania composite material. The technical scheme is that 15 to 60 mass parts of halloysite or halloysite subjected to heat treatment, 100 mass parts of deionized water, 0 to 2 mass parts of surfactants and 0 to 20 mass parts of alcohol type dispersants are uniformly mixed; acid is added until a pH value is greater than or equal to 3 and is smaller than 7, or alkali is added until the pH value is greater than 7 and is small than or equal to 10; slurry is prepared. A titanium-containing material is added into the slurry according to the mass ratio of titania to the halloysite of (1 to 5):10; uniform dispersion is performed; then, the dispersed mixed material is charged into a reaction kettle; reaction is performed for 6 to 24h under the condition of 100 to 220 DEG C; washing and drying are performed to prepare the halloysite nanotube / nanometer titania composite material. The preparation method has the advantages that the process is simple; the production cost is low; the environment-friendly effect is achieved; the scale production is easily realized. The halloysite nanotube / nanometer titania composite material prepared by the method has the advantages of large specific surface area, good adsorption performance and high photocatalysis efficiency.

The invention discloses a valve body manufacturing method. The valve body manufacturing method includes the following steps that firstly, raw metal materials are subjected to hot melting and extrusion forming to form long-strip-shaped profiles; secondly, the profiles are cut into a plurality of blanks, wherein the blanks are matched with valve bodies in shape and are slightly larger than the valve bodies; and thirdly, the blanks are ground and drilled to obtain the valve bodies. According to the manufacturing method, due to the fact that the profile forming step can be performed in most of existing profile production plants in a concentrated mode, and valve body manufacturers only need to perform cold machining such as cutting, grinding and drilling on the profiles without additionally arranging heat treatment equipment, the equipment and production cost is reduced, production efficiency is improved, meanwhile, pollution and energy consumption are reduced, and energy conservation and environment protection are archived; besides, due to the fact that existing professional profile production plants have large profile production equipment, raw metal materials such as aviation aluminum with better performance can be adopted for manufacturing the profiles, the performance of the valve bodies can be effectively improved, and the market competitiveness of enterprises can be effectively improved.

The invention discloses a renewable energy source system for environmental-friendly treatment of domestic garbage and a technology. The renewable energy source system comprises a vibrating feeder, a shredder, a screening machine, a first shearer, a second shearer, a baking oven, a baking main drum airflow pipeline, a draught fan, a cyclone dust collector, a pelleting machine, a material bin and awater curtain dust collector, wherein the vibrating feeder is arranged on one side of the shredder, and a discharge opening of the vibrating feeder is arranged above a feed hopper of the shredder; thescreening machine is arranged on one side, away from the vibrating feeder, of the shredder; the shredder and the screening machine are connected through a first belt conveyor; the screening machine and the first shearer are connected through a second belt conveyor; and the first shearer and the second shearer are connected through a third belt conveyor. Through the adoption of the renewable energy source system disclosed by the invention, the domestic garbage is made into flammable renewable energy sources through technologies of shredding, screening, shearing, crushing, baking, pelleting andthe like, and waste is turned into wealth, so that the problem of massive accumulation of the domestic garbage is solved to a great extent, and environment pollution caused by the domestic garbage isreduced.