628results about How to "Achieve removal" patented technology

The invention is a fluid bed gasification and combustion processing method for urban garbage. The hearth of a fluid bed garbage furnace (4) is composed of two parts of a low temperature gasification area and a high temperature combustion area, additives (f) such as limestone, kaolin, etc. are added to the garbage furnace (4); acid gases such as chlorine, sulfur, nitrogen, etc. are removed in the furnace; and the generation of dioxin is controlled in the furnace. A water cooling spiral slag cooler (5) and a vibration sieve (6) can be utilized to efficiently reduce heat loss of slag and recycle bed materials. The whole system requires no addition of auxiliary fuel, and has the characteristics of safe reliability, no odor emission, low investment and operating cost, less secondary pollutant discharge, high power generation efficiency, etc.

The invention discloses a method and a system for laser deicing for power transmission and transformation equipment. The method comprises the steps of: adopting laser frequency conversion technology and a galvanometer scanning focusing principle; adopting a continuous or long-pulse solid laser as core deicing equipment; outputting infrared laser, partially converting the infrared laser into visible laser; coaxially outputting the infrared laser and the visible laser; focusing and irradiating on an ice-covering area of the power transmission and transformation equipment to deice through a collimating mirror, two scanning galvanometers and a focusing mirror; adopting control equipment to control the opportunity and the time of laser output of the laser and the vibration of the scanning galvanometers to ensure that the laser irradiated on the ice-covering area of the power transmission and transformation equipment performs two-dimensional mobile scanning; and observing the irradiation position of the visible laser through a tracking and aiming device to prevent the laser from damaging the power transmission and transformation equipment. The system has small volume and light weight, realizes the long-distance focusing of the laser, is favorable for removing large-area ice coating, realizes the tracking and observation of the laser deicing, prevents the laser from damaging the power transmission and transformation equipment, and can remove ice layers under the condition of no poweroff for a conducting wire iron tower; and the system can also be used for the deicing of the power transmission and transformation equipment such as insulators, overhead transmission lines, iron towers and the like.

The invention discloses an absorption tower for desulfurization and denitrification combined with an oxidant in forward-flow and back-flow spraying mode and a method. The absorption tower includes two washing sections: a first section is a desulfurization loop and arranged on the lower portion of the absorption tower, and sulfur dioxide and hydrogen chloride are removed through slurry forward-flow and back-flow and smoke contact cleaning; a second section cleans oxidized smoke pollutants in slurry back-flow and smoke contact mode mainly for removing oxynitride and heavy metal mercury. A slurry divider is arranged between the two cleaning sections, the bottom of the slurry divider is an oxidization area, and strong oxidant is sprayed in the area. For reducing consumption of the oxidant, a catalyst is added in second-loop slurry for achieving auxiliary oxidization. Sulfur dioxide, oxynitride, heavy metal mercury and the like can be removed simultaneously in a washing tower by the technology, and the absorption tower has the advantages of being high in efficient and simple and suitable for various combustion devices including fuel coal power stations, refuse incineration plants, organic and inorganic production enterprises and the like.

The present invention provides a highlight region eliminating method of an endoscopic image. The method comprises the steps of (S10) preprocessing the endoscopic image, (S20) providing the final weighting template needed by an image fusion operation, (S30) providing a no-highlight image with weakened details of the endoscopic image, (S40) with the final weight template as the weight factor of fusion repair, carrying out fusion repair of the no-highlight image with the weakened details and the original image of the endoscopic image, and obtaining the no-highlight image with the elimination of highlight and the maintenance of image main details. The invention aims to provide the highlight region eliminating method of the endoscopic image, and the natural repair of the endoscopic image can be realized when the highlight region is large.

The invention discloses a transportation magnetic separation equipment for crushing and processing construction waste, which comprises a frame, a transmission box, a magnetic separation roller and a conveyor belt. The transmission box is installed on the upper end of the frame, and a conveyor frame is installed inside the transmission box , a driving roller and a magnetic separation roller are installed on the conveyor frame, and a conveyor belt is set between the driving roller and the magnetic separation roller; the upper left end of the transmission box is welded with a construction waste adding bucket, and the bottom of the construction waste adding bucket is A crushing roller is installed inside; the right end of the conveyor belt is provided with a winnowing chamber, and the bottom side of the right end of the conveyor belt is installed in sequence from left to right with an iron collection box, a heavy material box, a light material box, a slag collection box and Dust settling box; it is convenient to add construction waste into the hopper and crush it through the two crushing rollers; the magnetic separation roller absorbs and screens the construction waste containing ferromagnetism to realize the crushing and transportation of construction waste , Removal of ferromagnetism, screening, separation and dust removal, the operation is convenient and quick.

An ultrasonic control shear thickening and polishing method comprises the following steps of 1 adding a non-Newtonian fluid polishing solution mixed with abrasive particles and having the shear thickening effect into a polishing pond and fixing a workpiece on a clamp, wherein the clamp is located above the polishing pond; 2 starting a polishing solution circulating system to enable the non-Newtonian fluid polishing solution to be circularly pumped out of the bottom of the polishing solution and fed into the upper portion of the polishing pond; 3 starting an ultrasonic wave generating device, and meanwhile setting the vibration frequency and vibration amplitude to enable the non-Newtonian fluid polishing solution in the polishing pond to rapidly vibrate and produce a strong shear thickening phenomenon; 4 adjusting the clamp to enable the workpiece to perform relative motion, wherein the abrasive particles having the polishing effect produce the micro-cutting effect or chemical mechanical effect on the workpiece to remove materials on the workpiece surface, and accordingly the workpiece surface polishing is achieved. The invention further provides an ultrasonic control shear thickening and polishing device. The ultrasonic control shear thickening and polishing method and device is high in polishing efficiency and low in cost.

The invention relates to an integrated electrolysis nitrogen and phosphorus removal wastewater treatment method, which realizes to remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater in same electrolytic tank. The invention adopts graphite and iron plate as electrodes, alternates electrolysis phosphorus removal and electrolysis nitrogen removal process by alternating the electrode polarities to remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater. The invention performs optimization and integration according to the change characteristics of the parameters including electrolysis time, current density, pH value, pollutants removal rate in the electrolysis phosphorus removal and electrolysis nitrogen removal process, can remove the nitrogenous and phosphorus nutrition salt and organic pollutants in wastewater in high efficiency in short time without adding any medicament in the process, achieves the advantages of small occupation area, short treatment time and high pollutants removal efficiency.

The invention relates to a zonal vertical current artificial wetland system with a reinforced denitrification function, which comprises an upper layer and a lower layer. The upper layer is a nitrification reinforcing zone; the lower layer is a denitrification reinforcing zone; the upper layer comprises a water distribution pipe, a wetland fine filler zone, reoxygenation reinforcing and solid source supplementing pipes, an ammonia nitrogen adsorption-regeneration zone and wetland plants; the lower layer comprises a gravel transition layer, a solid carbon source filling zone, a wetland filler zone, a water collecting zone, water collecting pipes and a siphon drainage pipe; the water collecting pipes are positioned in the water collecting zone and are positioned at the bottommost layer of the wetland system together; the wetland filler zone, the solid carbon source filling zone, the gravel transition layer, the ammonia nitrogen adsorption-regeneration zone and the wetland fine filler zone are sequentially arranged above the water collecting pipes; and the wetland plants are planted on the surface layer of a wetland. The system disclosed by the invention has the advantages of strong continuous denitrification capacity, low operation cost, simplicity in maintenance and the like.

The invention belongs to the field of sewage treatment, and relates to a tidal current wetland coupled electrochemical reinforced denitrification and dephosphorization method and system. The system comprises a tidal current artificial wetland aerobic bed (1), an anaerobic electrolysis bed (2) positioned on the lower part of the tidal current artificial wetland aerobic bed (1), and a system reflux pump (8) for connecting the tidal current artificial wetland aerobic bed (1) and the anaerobic electrolysis bed (2), wherein the tidal current artificial wetland aerobic bed (1) is communicated with a water inlet pipe (5) of an arranged pump, and planted with wetland plants (9); a first plate electrode (4) and a second plate electrode (11) are arranged inside the anaerobic electrolysis bed (2) and respectively connected with electrodes of a direct current power supply (3), and the bottom of the anaerobic electrolysis bed (2) is provided with a draining valve (6); and the positive and negative electrodes of the direct current power supply (3) can be exchanged regularly. The invention can reinforce the removal effect of nitrate and phosphate in the tidal current artificial wetland bed, and solve the problem that the operation of the wetland sewage treatment is greatly influenced by the seasonal changes, and the like.

The invention relates to a circulating well system for removing volatile organic compounds in underground water, and aims at providing a circulating well system suitable for different soil types to solve the problems of hydraulic transmission energy loss and poor soil permeability and avoid airflow short circuit caused by overlarge injection pressure as well as improve the influence radius and achieve remarkable repair effect. The system comprises an outer well, an inner well, a gas injection system, a gas extraction system and a reagent spraying system, wherein the inner well is arranged in the outer well, the gas injection system is used for introducing gas into the water of the inner well for aeration, a part of the gas mingled with organic pollutants is extracted by the gas extraction system and then adsorbed by an active carbon adsorption device to be discharged, the other part of the gas enters the outer well, and the reagent spraying system is used for sprays reagent liquid into the outer well.

The invention discloses an advanced oxidative coupling device and process for treating organic wastewater difficult to degrade. A main device body comprises an ozone oxidation-multi-dimensional electro-catalysis/microelectrolysis area, an ozone oxidation-microelectrolysis/Fenton area, a coagulation area and an inclined plate sedimentation area, wherein the ozone oxidation-multi-dimensional electro-catalysis/microelectrolysis area comprises a multi-dimensional electrolysis/microelectrolysis area at the upper part and an ozone oxidation area at the lower part; the ozone oxidation-microelectrolysis/Fenton area comprises a microelectrolysis/Fenton area at the upper part and an ozone oxidation area at the lower part. The device combines four levels of advanced oxidation systems, and electrocatalytic oxidation, ozone oxidation, Fenton oxidation and a microelectrolysis reaction are mutually coupled in function, so that an organic matter difficult to degrade is subjected to multi-level oxidation to realize complete oxidative cracking; when the device is used for treating the organic wastewater difficult to degrade, the yield and the production rate of *OH are increased, the liquid phase transfer process is accelerated, the overall current efficiency of the device is increased, operation expenses are saved, flexible regulation and control of a process unit are realized, and the device can be used for treating various kinds of organic wastewater difficult to degrade.

The invention discloses a control method for inclusions in bearing steel in the smelting process. The Ds-type inclusions in the bearing steel can be removed thoroughly, and the fatigue life of the bearing steel is prolonged. According to the control method for the inclusions in the bearing steel in the smelting process, a high-carbon-chromium bearing is produced through the converter procedure, the LF procedure, the RH procedure and the CC procedure, and deoxidation is conducted through silicon carbide instead of aluminum in the steel tapping process of a converter; low-alkalinity refining slag is manufactured in the LF refining process, the slag surfaces are deoxidized through the silicon carbide with high purity, thus free CaO in the slag is reduced, and forming of the Al2O3 inclusions in molten steel is reduced; and high-vacuum circulation and long-time soft blowing are conducted in the RH refining process, and thus the purpose of removing the Ds-type inclusions in the bearing steelthoroughly is achieved. As for the high-carbon-chromium bearing steel produced by implementing the control method, the total oxygen content is less than or equal to 0.0010% while the Ds-type inclusions in the steel are removed thoroughly.

The invention breaks through the restriction of the traditional autotrophic nitrification and anoxic denitrifying metabolism principle, and discloses a method for removing carbon and nitrogen pollutants in waste water in one step according to physiological feature and metabolism principle of heterotrophic nitrification-aerobic denitrification bacteria. In a single biochemical reactor, mixed solution of the heterotrophic nitrification-aerobic denitrification bacteria and active slurry in a certain proportion is inoculated, after a certain period of aeration is performed, nitrogen and organic substances are removed at the same time, and the efficiency of denitrification and carbon removal is high. By using the method, a traditional biochemical treatment system can be updated and transformedwithout constructing a new building based on the traditional biochemical treatment system, and the operation is convenient and fast. The method overcomes the bottleneck problems that the nitrobacteria propagate slowly, the nitrification and denitrification reactions are performed in sections, and the like.

The invention belongs to the technical field of metallurgy and environmental protection, and particularly relates to a comprehensive utilization method for aluminum oxide red mud. The comprehensive utilization method for the aluminum oxide red mud aims at solving the problem that the aluminum oxide red mud is difficult to treat and recycle effectively, the red mud is treated by adopting a vacuum thermal reduction method, carbon or aluminum serves as a reducing agent, iron oxide in the red mud is reduced into metal iron under a vacuum condition, then iron in reducing slag is separated out through magnetic separation to be used for producing reduced iron powder, combined-state sodium oxide is reduced into metallic sodium and is distilled out, and therefore, the purposes of dealkalization and alkali recovery from the red mud can be achieved; and meanwhile, other valuable substances (such as scandium, niobium, cesium) in the red mud are reduced to metallic states and form an alloy with aluminum so as to be separated from the slag with the main components being silicon oxide and aluminum oxide, and therefore the effects of harmless treatment of the aluminum oxide red mud and comprehensive recovery and utilization of the valuable elements can be achieved, and no waste gas, waste water, waste slag or other secondary pollution is generated in the treatment process.

The invention relates to an in-situ rapid preprocessing method for protein samples. The whole preprocessing process of the protein samples is carried out in a centrifugal ultrafiltration device in situ, the denaturation process, the reduction process, the solvent replacement process, the alkylate process, the enzymolysis process and the impurity removal process of the protein samples are integrated, and enzymolysis of the protein samples is accelerated under assistance of microwaves. The method can remarkably improve the preprocessing flux of the protein samples; meanwhile, the whole preprocessing process of the samples is carried out in situ, and the recovery rate is high. In addition, the centrifugal ultrafiltration device can conveniently and rapidly achieve the purification of the samples and replacement of solvents, and enzymatic hydrolysate does not need an additional purification process and can be directly combined with subsequent efficient liquid chromatogram separation and mass spectrum identification.

The invention provides a technology for preparing a diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane by a physical blending/phase transition technology and a chemical grafting blending/ phase transition technology. The technology is as follows: reagents such as diethylene triamine pentacetic acid, polyvinylidene fluoride, melamine, dimethyl sulfoxide, acrylic acid, polyvinylpyrrolidone and the like are taken as raw materials; diethylene triamine pentacetic acid polyamino and polycarboxylic acid compound is uniformly mixed in a polyvinylidene fluoride separation membrane and resin respectively by the physical blending/phase transition technology and the chemical grafting blending/ phase transition technology. The technology improves the hydrophobic properties of the conventional polyvinylidene fluoride micro-filtration separation film and the resin, realizes metallic ions in waste water, and has the advantages of simple operation, uniform blending and the like. The diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane and the resin increase the purification efficiency of drinking water, realize the resource utilization of the heavy metal in the industrial wastewater, and expand the application field of the polyvinylidene fluoride micro-filtration separation film.

The invention discloses a combined process for building partial nitrosation-anaerobic ammonium oxidation garbage percolate. The method comprises the following steps of: normally separating and removing, filtering and settling garbage percolate, anaerobically and biochemicalally pre-processing; putting the pre-processed garbage percolate in a started and steady SBR (Sequencing Batch Reactor) reactor; controlling the temperature of the SBR reactor in a range of 25-35 DEG C; hydraulically staying for 2 to 3 days, wherein the dissolved oxygen concentration is 2 to 3 mg/L so that the mol concentration ratio of nitrosation nitrogen to ammonia nitrogen in the water is 0.8 to 1.4; flowing the water into an anaerobic reactor and carrying out the anaerobic ammonium oxidation to denitrify. The method provided by the invention controls the reaction condition of SBR reactor so that the ammonia nitrogen in the garbage percolate is partially nitrosated and then removed in the garbage percolate in the series anaerobe reactor. Compared with the traditional garbage percolate denitrifying process including nitration and denitrification, the method obviously reduces the addition of agents and the consumption of the power energy, reduces the processing cost of garbage percolate and is an energy-saving, consumption-emission and environmental-friendly processing process.

The invention discloses a preparation method and application of functionalized polyvinyl alcohol microspheres. The preparation method comprises the following steps: uniformly mixing polyvinyl alcohol microspheres, epoxy chloropropane and a hydrochloric acid solution, carrying out a stirring reaction for 1-5 hours in a water bath, and carrying out centrifuging, water cleaning and drying for later use after the reaction; uniformly mixing the obtained chloridized polyvinyl alcohol microspheres, tetrabutylammonium bromide, ethidene diamine and a sodium hydroxide solution, carrying out the stirring reaction for 4-10 hours in the water bath, and carrying out the centrifuging, ethanol cleaning and the drying for later use after the reaction; and uniformly mixing the obtained aminated polyvinyl alcohol microspheres with 2-(2-pyridine) azo-resorcinol, formaldehyde and distilled water, stirring for 6-18 hours in the presence of nitrogen, and carrying out the centrifuging, the ethanol cleaning and the drying after the reaction, so as to obtain an end product. The functionalized polyvinyl alcohol microspheres provided by the invention can be used for chelating heavy metal and detecting and processing divalent heavy metal ions in wastewater and have the characteristics of simple preparation condition, low cost, short detection response time and high adsorption capacity.

The invention discloses a method for treating and recycling TBBP (tetrabromobisphenol)-A production wastewater, which comprises the main steps of physical multistage settling, flocculation and recovery, two-effect high/low-temperature evaporative desalination, advanced ozone oxidation and biochemical treatment. According to the invention, the removal of harmful hardly-degradable substances in TBBP-A wastewater is realized, the pH value of wastewater subjected to treatment is neutral, the COD (chemical oxygen demand) can be degraded to below 100 mg/L, and chlorobenzene can be completely decomposed by cutting, thereby reaching reuse and discharge standards, and achieving the purposes of the harmless and up-to-standard discharge of wastewater and the recycling of process water.

The invention discloses a pedestal pan with a handrail, and a handrail adjusting device. The pedestal pan comprises a pedestal pan base, wherein at least one handrail and at least one elevating control mechanism which controls the handrail to move up and down are arranged on the pedestal pan base; the elevating control mechanism comprises a first power unit and a first transmission unit; and the first transmission unit is connected with the handrail, and is used for driving the handrail to perform elevating actions under the driving action of the first power unit. The handrail adjusting device comprises the elevating control mechanism. Due to the adoption of the structure, the height of the handrail can be adjusted for different people to meet the use requirements of various people; and on the other hand, an electric control adjusting way is adopted, so that the handrail can be adjusted very conveniently without any auxiliary tool.

The invention discloses a chemical agent for treating wastewater containing thallium and heavy metals. The chemical agent is mainly prepared from 1-90 percent of a component A, 1-90 percent of a component B and 1-98 percent of a component C, wherein the component A is one or combination of arbitrary two of sodium dimercaptosuccinate and derivatives thereof; the component B is one or combination of arbitrary two of hydroxames; and the component C is one or combination of arbitrary two of dialkyl dithiophosphate. The process comprises the following steps: dissolving the chemical agent in water to prepare a chemical agent aqueous solution which has a mass concentration of 2-20 percent; putting the chemical agent aqueous solution into to-be-treated wastewater containing thallium and heavy metals and/or radioactive substances, and sufficiently stirring to form metal complex; adding a little amount of inorganic flocculant containing magnesium, iron, silicon or aluminum and/or polymer flocculant to form flocculent precipitation which can be filtered and separated; and finally filtering and separating to complete wastewater treatment. The chemical agent can be used for realizing functions of deodorizing waterbody, removing organic matters, completely removing thallium and heavy metals and the like.

The invention discloses an acoustic levitation polishing machine of mechanically representing nano test samples and comprises a machine frame, a pulse power source, a holding fixture that is used for clamping a working piece to be processed, an ultrasonic energy transducer, a container that is used for storing polishing liquid, an ultrasonic reflecting end, and a tuning mechanism that is used for adjusting the distance between the ultrasonic reflecting end and the ultrasonic energy transducer. The ultrasonic energy transducer, the container and the tuning mechanism are all arranged above the machine frame, the pulse power source is connected with the ultrasonic energy transducer, the container is arranged under the ultrasonic energy transducer, the holding fixture is arranged above the container and is connected with a belt wheel actuating mechanism, and the ultrasonic reflecting end is arranged under the container, coordinated with the ultrasonic energy transducer and connected with the tuning mechanism. The invention provides an acoustic levitation polishing machine of the mechanically representing nano test samples with good applicability and well polishing effect.

The invention discloses a method and a device for removing nitrate in aquaculture seawater through heterotrophism and autotrophy series connection denitrification. The device comprises a heterotrophic organism denitrification unit, an autotrophic organism denitrification unit and an outlet water filtering unit, wherein the heterotrophic organism denitrification unit comprises a heterotrophic denitrification bioreactor; the autotrophic organism denitrification unit comprises an autotrophic denitrification bioreactor; the outlet water filtering unit comprises a solid filtering device; aquaculture seawater to be treated is sequentially introduced into the heterotrophic denitrification bioreactor, the autotrophic denitrification bioreactor and the solid filtering device, and the removal of nitrate in the aquaculture seawater can be realized. The method and the device have the advantages that on the premise of maintaining high-concentration dissolved oxygen of inlet water, the removal of nitrate in circulation aquaculture seawater is realized; the generation of nitrous acid in the outlet water is strictly controlled; the consumption of organic carbon sources and the generation quantity of sulfate radicals are reduced; the treatment cost is reduced.

The invention relates to the field of carbide slag recycling in calcium carbide method acetylene production, in particular to a method that after physical separation is performed on carbide slag impurities, a calcium hydroxide component in the carbide slag impurities is extracted, and then calcium carbide raw materials are produced through carbide slag. The method for producing the calcium carbide raw materials through the carbide slag mainly comprises the following steps of fresh carbide slag screening; magnetic separating; ore grinding; ore pulp preparing; suspension separating; dewatering; carbon mixing, wherein filter cakes which are obtained after dewatering is performed and contain certain moisture are mixed with carbon material particles of which the particle size is smaller than or equal to 2 mm and the fixed carbon content is larger than or equal to 70% in a mixing machine according to the mass fraction ratio of 1.63:1-2.91:1; granulating and forming; drying; calcining. According to the method for producing the calcium carbide raw materials through the carbide slag, the shortcomings and defects in the prior art can be effectively overcome, reclamation recycling of the carbide slag is achieved, the impurities in the carbide slag can be effectively removed, the technology is simple and convenient, and the economical efficiency and practicability are achieved.

The invention discloses composite ecological fillers and a preparation method of the composite ecological fillers. Adsorption functions of steel slag, anthracite and zeolite to nitrogen and phosphorus substances in sewage are utilized to optimize three types of fillers and enable the fillers to have a modularized characteristic. The composite ecological fillers are applicable to a trickling filter bed, an anaerobic biological filter tank, a filter tank, an aeration biological filter tank, a high-load biological filter tank, an active biological filter tank and the like, and can be used for river and lake slope protection materials.

The invention relates to a technique for integrated two-stage strengthened air-flotation separation of dense algae slurry. The technique comprises that: collected dense algae slurry first enters a first-stage air-flotation tank where algae and high-density micro-bubbles have contact with and adhere to each other so as to separate algae and water and remove about 50 to 80 percent of algae, and then water enters a second-stage strengthening air-flotation tank, is added with an appropriate amount of flocculant, and then is subjected to air-flotation treatment again so as to remove the remaining algae and other suspended substances in the water. The invention not only applies to the disposal of dense algae slurry, but also can be used to treat algae-rich water low in algae content. The invention has the advantages of effectively removing blue-green algae in water, transferring nitrogen, phosphorus and other nutrient loads in water, purifying water, preventing the explosion of blue-green algae and providing an effective method and a device for controlling the pollution of lakes and reservoirs.

The invention relates to a complete methanation reaction device for synthesis gas. The device consists of a tube-shell reactor, a heat exchanger, a steam pocket, a make-up water pump, a condenser and a gas-liquid separator, wherein a catalyst is filled in a tube of the reactor; the shell pass is superheated water for removing heat; heat released in methanation reaction is absorbed through the phase change of high-pressure superheated water in the shell pass of the reactor and taken out of the device; the generated steam enters the steam pocket, is subjected to gas-liquid balance and can directly form superheated steam to be supplied to the outside; the temperature of a catalyst bed in the tube of the reactor is regulated and controlled by controlling the balance pressure of the superheated steam; reaction product exit gas exchanges heat with raw material gas and is continuously condensed; and a gaseous product and a liquid product are separated by the gas-liquid separator. The device can realize the continuous and stable operation of the complete methanation reaction of the synthesis gas, can effectively improve heat transfer efficiency and control the temperature of the reaction bed in a phase change heat transfer mode at a high temperature and under high pressure, expands the operation range of the complete methanation reaction of the synthesis gas, and can effectively recycle the heat released in the reaction.

The invention relates to an amino end-group triazine ring tree-shaped macromolecular adsorbent and a preparation method thereof. An anionic dye can be removed by fading dye wastewater. A tree-shaped macromolecule is a three-dimensional hyper-branched sequential novel macromolecule, so that the size, shape structure and functional group of the molecule can be strictly controlled and designed at molecular level, a dye molecule can be wrapped by a cavity structure in the macromolecule, and the removing purpose is achieved. The preparation method provided by the invention comprises the following steps of: dissolving cyanuric chloride in acetone; adding quadrol; stirring, reacting and then adding acid-binding agent; increasing temperature and reacting; and performing suction filtration on the product and then extracting and washing, thereby obtaining the amino end-group triazine ring tree-shaped macromolecular adsorbent. Under the influence of unsaturated bonds, the adsorbent disclosed by the invention is higher in reactivity and is easily subjected to nucleophilic substitution; the reaction selectivity is excellent; the condition is controllable and the method is conducted in steps; the adsorbent has physical and chemical adsorption for the anionic dye; and the adsorbent has the characteristics of higher relative molecular mass, so that the material usage is less and the cost is low.

Belonging to the technical field of biochar preparation, the invention discloses preparation of Fe-Zn and phosphate modified sludge biochar and application of the same in removal of fluoroquinolones antibiotics from water. The preparation method includes: dewatering and drying the sludge from a secondary sedimentation tank of a municipal sewage treatment plant, then performing pyrolysis by a hightemperature tubular furnace, then utilizing Fe-Zn and phosphate for modification, and finally conducting two calcining to obtain Fe/Zn+H3PO4-SBC. The Fe/Zn+H3PO4-SBC prepared by the invention has adsorption capacity on fluoroquinolones antibiotics ciprofloxacin, norfloxacin and ofloxacin up to 25.43-88.73mg/g. The method provided by the invention adopts municipal sludge as the raw material, reduces the production cost, realizes the resource utilization of municipal sludge and efficient removal of antibiotics from water, also has the advantages of simple operation, low cost and the like, and isa potential removal method for fluoroquinolones antibiotics in water.

The invention relates to a method for deeply cleaning and removing cobalt by wet hydrometallurgy. The method is characterized in that neutrally-leached supernate in wet hydrometallurgy is sequentially treated by a first-stage cleaning process, a second-stage cleaning process and a third-stage cleaning process to obtain new liquid containing not greater than 0.5mg/l cobalt, wherein the neutrally-leached supernate in wet hydrometallurgy is deeply purified through a cleaning agent and an activating agent in the second-stage cleaning process; the cleaning agent is alloy powder prepared through 50-65% by weight of zinc, 30-49% by weight of manganese, 0.05-2% by weight of aluminum, 0.05-2% by weight of magnesium, and 0.9-3% by weight of lead; the activating agent is one or two of antimonic salt and antimony white. The method has the advantages that the cobalt removing efficiency is outstanding, and particularly the zinc consumption is low and the purpose of deep cleaning can be achieved while the method is used for processing a high-cobalt zinc sulfate solution; meanwhile, impurities which damage the wet hydrometallurgy are not introduced; the operation is simple; the industrial implementation is easily carried out; and the economic benefit is obvious.