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593results about How to "Reduce secondary pollution" patented technology

Beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent and use thereof

InactiveCN102350312AUniform particle size distributionInternal mass transfer resistance is smallOther chemical processesWater contaminantsSolubilitySorbent
The invention provides a beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent is prepared through a lay-by-lay assembling method. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent has good stability, good dissolvability and strong adsorption capability. The beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent has strong effects of adsorbing azo dyes such as methylene blue, methylene red and the like in waste water. The invention also provides a method for removing methylene blue in waste water. The method comprises the following steps of putting the beta-cyclodextrin functionalized Fe3O4 magnetic nanometer adsorbent into an aqueous solution containing methylene blue, adjusting a pH value of the reaction system to a pH value of 7 to 8, carrying out ultrasonic dispersion for 0.5 to 1 hour, carrying out oscillation for 8 to 10 hours, and separating out precipitates by a permanent magnet. The method for removing methylene blue in waste water has the advantages of good adsorption effects, mild reaction, simple processes, simplification of solid-liquid separation, less secondary pollution and good feasibility for large-scale application.

City management intelligent streetlamp

The invention discloses a city management intelligent streetlamp which comprises a streetlamp body arranged on a municipal road. A core controller is arranged in a lamp post of the streetlamp body. The core controller is connected with an illumination system, a water supply pipeline, an environment monitoring system and a communication system. The illumination system comprises a city streetlamp and a streetlamp controller. The streetlamp controller is in controlled connection through the core controller. The communication system comprises a wireless GPRS gateway module, a WiFi router and a ZigBee wireless unvarnished transmission module. The communication system is connected to a cloud service platform. The cloud service platform is connected with a government public information platform. A public information display is installed on the streetlamp body. The core controller is connected to a public security video monitoring system, a sky net monitoring system and a well lid monitoring managing system. By means of the city management intelligent streetlamp, the air humidity and temperature can be adjusted to a certain degree, the PM2.5 value in the air is reduced, the public information display is further arranged and can play government public information in real time, and due to the arranged public security video monitoring system and the interconnected sky net monitoring system and well lid monitoring managing system, good security work can be done.
Owner:江西中天景建设有限公司

Method for preparing magnetic cellulose aerogel from wastepaper

The invention provides a method for preparing magnetic cellulose aerogel from wastepaper, and relates to an aerogel preparation method. The invention aims at providing a method for preparing regenerated magnetic cellulose aerogel from the wastepaper. According to the method, the wastepaper material in life is used as a raw material for preparing a green, ultralight and highly porous aerogel oil absorbing material. The method comprises the following steps: step one. preparing regenerated cellulose from wastepaper; step two. preparing regenerated cellulose aerogel; step three. carrying out hydrophobic modification on the regenerated cellulose aerogel; and step four. preparing the regenerated magnetic cellulose aerogel oil absorbing material. The method has the advantages that the magnetic cellulose aerogel oil absorbing material is prepared from the wastepaper in life, the material can be greatly saved, the waste is turned into wealth, the regenerated magnetic cellulose aerogel is simple in a preparation technology, low in cost, convenient to use, capable of effectively absorbing multiple organic solvents and oil matters leaked in water, and high in absorption rate, the oil absorption is thorough, the oil absorbing material is nontoxic and harmless and causes very little secondary pollution, and an adopted magnetic collection method is simple, convenient and easy to use.
Owner:HARBIN INST OF TECH

Device and method for preparing activated carbon material for electrochemical capacitor

InactiveCN102205962AFacilitate the activation of pore formationAvoid temperature gradientsElectrolytic capacitorsPotassium hydroxideBiological activation
The invention provides a device and method for preparing an activated carbon material for an electrochemical capacitor, belonging to the technical fields of coal chemical industry and microwave chemistry. The method comprises the following preparation processes of: deashing coal particles serving as raw materials by using hydrochloric acid and hydrofluoric acid, modifying the deashed coal by using nitric acid in an auxiliary way, mixing the modified coal serving as a carbon source with potassium hydroxide and deionized water, stirring to obtain a mixture, stirring and evaporating the mixture to obtain a solid mixture, and then performing microwave-assisted activating, washing, drying and grinding on the solid mixture to obtain the activated carbon. The invention has the advantages that the activation time is only 20-30 minutes, the mass ratio of potassium hydroxide to coal is (0.5-3):1, the preparation process is simple, the microwave-assisted heating is uniform, efficient and energy-saving, the consumption of the potassium hydroxide is reduced, and the activation process has the advantages of uniformity and high efficiency. The prepared activated carbon is used as an electrode material of the electrochemical capacitor and has better stability and excellent comprehensive property.
Owner:ANHUI UNIVERSITY OF TECHNOLOGY

Antibacterial and moldproof polymer modified spray asphalt waterproof paint and application method thereof

The invention provides antibacterial and moldproof polymer modified spray asphalt waterproof paint and an application method thereof. The paint is composed of a component A and a component B. The component A is prepared from, by weight, 90-120 parts of anionic emulsified asphalt, 40-90 parts of polymer emulsion, 0.5-5 parts of a thickening agent and 10-60 parts of filler. The component B is prepared from, by weight, 100 parts of water, 5-15 parts of a curing agent and 0.5-5 parts of an antibacterial agent. The invention further provides the application method of the antibacterial and moldproof polymer modified spray asphalt waterproof paint. The antibacterial and moldproof polymer modified spray asphalt waterproof paint has high ductility, high resilience and high adhering strength, is antibacterial and moldproof, excellent in low-temperature performance and high in construction speed and can be closely connected with a basic layer, and influences of deformation of the basic layer on the waterproof performance of a material can be effectively resisted; meanwhile, the situation that bacteria are bred on the surface of a coating film, and the coating function of a waterproof layer is damaged can be effectively prevented, and the possibility that an antibacterial agent has secondary pollution on water is reduced.
Owner:BEIJING ORIENTAL YUHONG WATERPROOF TECH CO LTD

Manipulator for fetching and delivering silicon chip

The invention relates to a mechanical arm which is used for transporting silicon chips. The invention is characterized in that the mechanical arm comprises a horizontal driving mechanism, a vertical driving mechanism, a rotationally driving mechanism and a frame which is used for installing the three driving mechanisms, wherein the horizontal driving mechanism comprises a horizontal driving motor connected with a bracket which can horizontally move along two horizontal feeding rods through a first transmission device; the vertical driving mechanism comprises a vertical driving motor which is connected to the bracket, and the vertical driving motor is connected with a lifting frame which moves along two vertical feeding rods from top to bottom through a second transmission device; and the rotationally driving mechanism comprises a rotationally driving motor which is connected to the lifting frame and is connected with a main arm through a third transmission device, the top of the main arm perforates through the top of the bracket and is connected with a paw, the upper surface of the paw is provided with a sucking disk, and a vacuum air channel which is communicated with the sucking disk is arranged in the center of the main arm and the paw. The invention has simple structure, small volume and low cost, and can be widely used for a transporting process of various silicon chips.
Owner:陈百捷 +1

Fused salt heat treatment method for rubbish incineration fly ash

The invention discloses a fused salt heat treatment method for rubbish incineration fly ash, and belongs to ash treatment methods. The method solves the problems that the treatment temperature is high, the energy consumption is large and poisonous trace elements cause secondary pollution through existing treatment methods for the rubbish incineration fly ash. The method includes the steps of preparing mixed fused salt, carrying out fusing heat treatment, detecting the content of heavy metal and extracting and recovering the heavy metal. According to the method, chlorides, sulfate and partial heavy metal in the fly ash can be dissolved out through the fusing, heat storing and reacting characteristics of the fused salt, processes are relatively simple, reaction conditions are mild and easy to control, leaching of the heavy metal in the fly ash can be effectively controlled in an environment, the treated fused salt can be recycled, deep enrichment and recovery of the dissolved heavy metal can be carried out, the harm level of treated residues is greatly lowered, building material utilization and secure landfill of the treated residues can be conveniently carried out, secondary pollution is effectively reduced, the resource utilization efficiency is improved, and light reduction, harmlessness and resource utilization of the rubbish incineration fly ash can be realized synchronously.
Owner:HUAZHONG UNIV OF SCI & TECH

High-dust holding capacity and high-efficiency composite electrostatic air purification device

InactiveCN103691240AReduced dust holding capacityExtended service lifeCombination devicesBacterial virusAir filter
The invention discloses a high-dust holding capacity and high-efficiency composite electrostatic air purification device, which sequentially comprises a primary filtering screen, a carbon brush charge region, an electrostatic dust removal region, an air filter and a dust hopper, wherein a differential pressure transducer is arranged at the two ends of the air filter; a material level sensor is arranged in the dust hopper. According to the composite electrostatic air purification device, charged particles are collected by the electrostatic dust removal region, so that the air filter is protected, and the service life of the air filter is prolonged; the dust holding capacity of the air filter is reduced, pressure drop is reduced, and labor is saved; the exposure time of air, dust and particles on the air filter is reduced, and secondary pollution to the air caused by gas pollutants and bacterial viruses in a particle filtering process is reduced; the filtering efficiency of the electrostatic dust removal region is insensitive to blast volume changes, and the influence of proper increase of the blast volume to the overall dust removal efficiency of the device is limited, so that the purification device is suitable for blast volume variable buildings.
Owner:TIANJIN UNIV

Supported advanced oxidation catalyst material and preparation method thereof

The invention belongs to the field of catalyst materials for waste water treatment, and provides a supported advanced oxidation catalyst material and a preparation method thereof. The method includes the steps: (1) pre-treating carrier materials; (2) placing the pretreated carrier materials into plating solution with a pH (potential of hydrogen) value of 3-13, stirring mixture for at least 5 minutes at the temperature ranging from 30 DEG C to 90 DEG C, performing solid-liquid separation, cleaning a solid phase by the aid of water and organic solvents, and drying the cleaned solid phase to chemically-plated carrier materials; (3) aerobically roasting the chemically-plated carrier materials for 1-8 hours at the temperature ranging from 200 DEG C to 1000 DEG C to obtain the catalyst material. According to the catalyst material, metal oxides are uniformly loaded on the surfaces of the carrier materials, binding force among the loaded metal oxides and the carrier materials can be effectively improved, loading capacity is improved, the service life of the catalyst material is prolonged, catalytic activity is improved, and secondary pollution caused by metal ion leaching is effectively relieved.
Owner:成都柏溪环境科技有限公司

Ultra-clean treatment method for incinerated tail gas

The invention discloses an ultra-clean treatment method for incinerated tail gas. The ultra-clean treatment method is characterized by sequentially comprising the steps that the tail gas continues to be combusted through a secondary combustion chamber; heat recovery is conducted on the tail gas through a waste heat boiler; the tail gas is cooled through a quench tower; baking soda powder and active carbon powder are sprayed into the tail gas exhausted out of the quench tower, and the tail gas, the baking soda powder and the active carbon powder are mixed and fed into a dust remover provided with a catalytic filtering bag to remove heavy metal and dioxin in the tail gas; and the qualified tail gas with the acid gas being removed is exhausted into the atmosphere through an induced draft fan and a chimney. The ultra-clean processing method is simple in technique. By treating and incinerating the tail gas through the method, spraying, washing and smoke reheating are not needed, the effect for removing the dioxin in the tail gas is good, fire disasters can be avoided, and the operation cost is reduced; and in addition, secondary pollution such as sewage is avoided. The ultra-clean processing method is suitable for treating the tail gas exhausted from household refuse and hazardous waste combustion furnaces.
Owner:JIANGSU QUANNENG ELECTROMECHANICAL EQUIP ENG LTD BY SHARE LTD

Automatic quick rice noodle boiling machine

InactiveCN103976648AImprove the efficiency of cooking powderImprove efficiencyCooking vesselsMeat dishesEngineering
The invention discloses an automatic quick rice noodle boiling machine, and relates to a device applied to the catering industry. The automatic quick rice noodle boiling machine comprises a bowl feeding mechanism, a bowl conveying mechanism, a rice noodle transmission mechanism, a rice noodle boiling mechanism, a material feeding mechanism and a central control mechanism; the central control mechanism controls the bowl feeding mechanism to place bowls onto a conveyor belt I of the bowl conveying mechanism; then the central control mechanism controls the bowl conveying mechanism to automatically place the bowls to one side of the rice noodle boiling mechanism; the rice noodle transmission mechanism puts rice noodles to the rice noodle boiling mechanism for boiling the rice noodles; the boiled rice noodles are poured to the bowls on the conveyor belt I; the central control mechanism then controls the bowl conveying mechanism to continuously convey the bowls forwards to automatically place the bowls to one side of the material feeding mechanism; the material feeding mechanism pours meat dish and soup to the bowls on the conveyor belt I; the central control mechanism then controls the bowl conveying mechanism to continuously convey the bowls forwards to the tail end of the conveyor belt I; people who eat the rice noodles can fetch the boiled rice noodles. The automatic quick rice noodle boiling machine disclosed by the invention has the advantages that the rice noodle boiling efficiency can be improved, the rice noodle boiling quality can be guaranteed, and the safety of boiled rice noodle foods can be improved.
Owner:黄安国

A kind of Moringa water purifier

The invention provides a moringa oleifera water purifying agent. The water purifying agent is characterized in that: the water purifying agent is prepared from components of, by mass: 90% to 100% of moringa oleifera extract, and 0 to 10% of a chemical water purifying agent. According to the invention, moringa oleifera oil extraction residuals are adopted; moringa oleifera effective components areextracted; and a complete and comprehensive utilization of moringa oleifera seeds is realized. The moringa oleifera water purifying agent is a pure plant extract. When the moringa oleifera water purifying agent is used for purifying water, no toxicity or harm is brought in. Therefore, harms to human and secondary pollutions to the environment brought by chemical water purifying agents can be solved from the source. The moringa oleifera water purifying agent is suitable for rural water purification. With the water purifying agent, a problem of drinking-water safety of rural population can be solved. The water purifying agent is applied in the purifications of turbid waters such as river water, lake water and rainwater, and brings better purification effects than chemical water purifying agents. The moringa oleifera water purifying agent can be blended with chemical water purifying agents for purifying urban sewage. Therefore, adoption amount of chemical water purifying agents is greatly reduced.
Owner:THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY

Production method of calcium peroxide particles for slowly releasing oxygen

The invention discloses a production method of calcium peroxide particles for slowly releasing oxygen. The production method of the calcium peroxide particles for slowly releasing the oxygen comprisesthe steps of using calcium peroxide powder as an oxygen releasing agent, using polylactic acid particles as an embedding medium, using dichloromethane as an intermediate medium for dissolving the polylactic acid particles, after the dissolved polylactic acid particles and the calcium peroxide powder are completely mixed, conducting volatilizing under a ventilation condition to remove the dichloromethane, placing an obtained mixture in a tubular mold after the mixture is in a gelatinous semi-solid state, and conducting extrusion molding and shearing balling to finally obtain the calcium peroxide particles for slowly releasing the oxygen after the dichloromethane is completely volatilized. By means of the production method of the calcium peroxide particles for slowly releasing the oxygen, the calcium peroxide powder and the polylactic acid particles can be completely mixed and embedded, the oxygen release speed of the calcium peroxide in water can be effectively controlled, and in the production process, loss, due to contact between the calcium peroxide and the water, of an oxygen releasing component is avoided. The produced calcium peroxide particles for slowly releasing the oxygencan slowly and continuously release the oxygen in the water, and meanwhile, due to the biodegradability of the PLA, no secondary pollution is generated during material use.
Owner:SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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