313results about How to "High decontamination efficiency" patented technology

An ultrasonic detection narrow pulse wide laser cleaner includes a narrow pulse wide laser device (1), a beam adjustment transmission device (2), a moving platform device (3), an ultrasonic detection device (4), an automatic control device (5), a dust absorption recovery device (6) and an ultrasonic detection narrow pulse wide laser filth clearing method. A cleaned object surface is irradiated with narrow pulse wide lasers. And a strong vibration shock wave is produced in short time to remove filths from the medium surface. At the same time, an instrument device is used to monitor and analyze ultrasonic waves caused by the vibration during the cleaning process to ensure the good medium surface and realize the automatic cleaning process. The cleaner is used to remove various filths of oxides, corrosion matters, paint, grease marks, residues, etc. of the media surfaces of metals, semiconductors, buildings, etc. The cleaner has the advantages of good effect, non-damages, high efficiency, automation, etc.

A method of cleaning a washing tub mounted in a water tub of a washing machine includes supplying water necessary to clean the washing tub to the water tub, and rotating the washing tub while supplying heat to the water tub by means of at least one heat supply device mounted in the washing machine. The washing tub is maintained at high temperature when the washing tub is cleaned, whereby decontamination and disinfection efficiency is improved. Also, water required to clean the washing tube is separately supplied to increase the rotating speed of a washing motor, whereby cleaning efficiency is improved.

The present invention discloses one kind of green multifunctional detergent comprising surfactants, detergency promoter, permeating agent, chelating agent, defoaming agent and water in certain weight proportion. The green multifunctional detergent is used in cleaning ferrous metals, non-ferrous metals and stainless steel, as well as semiconductor material and device, LCD glass plate, coated glass, LCD box and electronic circuit board. The present invention has the advantages of compounding and use at normal temperature, powerful detergency, high cleaning efficiency, no ODS matter contained, no phosphate contained, no inflammability, no explosion, no pollution, and direct exhaust and reuse of used waste liquid.

The invention discloses a external-insulation dry-ice cleaning system for electrical equipment, which belongs to the technical field of the external-insulation dirt removal of electrical equipment of an electrical system. The external-insulation dry-ice cleaning system adopts the structure that a dry-ice particle spray nozzle (1), an insulating adjustable bracket (2), a dry-ice transmission insulating pipe (3), a dry-ice cleaning device (5), an air compressor (6) and an air dryer (7) are sequentially connected with each other front and back, wherein the dry-ice particle spray nozzle (1), the insulating adjustable bracket (2), an insulating bracket regulating lever pipe (4) and a bracket regulating power device (8) are sequentially connected with each other from front and back, a dry-ice making granulating machine (10) is connected with a liquid carbon dioxide storage tank (11), a dry-ice insulation can (12) is independent equipment, and an earthing base (9) is taken as a safe earthing pedestal of the external-insulation dry-ice cleaning system. The invention has high dirt removing efficiency, is suitable for the on-line cleaning of an insulating sleeve and an insulating mainstay or an erected transmission line insulator inside a transformer station, and is an effective measure for safely generating the electricity and ensuring the electricity supply.

The invention relates to a dirt separator, in particular to a centrifugal sedimentation composite type dirt separator, which aims at solving the problems of low dirt removing efficiency and difficult granular impurities removing of the prior dirt separator. The dirt separator adopts the structure that an inner cylinder is arranged in an outer cylinder and is coaxial with the outer cylinder, and the upper end of the inner cylinder is fixedly connected with the inner wall of a top cover of the outer cylinder; the wall of the inner cylinder is provided with a through hole, the inner space of the inner cylinder is a rotational flow region, the space between the inner cylinder and the outer cylinder is a sedimentation region, and one end of a water feeding pipe is connected to the lateral wall of the upper end of the inner cylinder and communicated with the rotational flow region inside the inner cylinder. The invention separates a whole flow field into the rotational flow region inside the inner cylinder and the sedimentation region positioned between the inner cylinder and the outer cylinder, a fluid entering the inner part of the dirt separator is rotationally separated and then enters the sedimentation region through the through hole positioned on the wall of the inner cylinder from the rotational flow region, and solid impurities with small grain diameters ranging from 0.075 mm to 1 mm enter the sedimentation region and are separated by low-speed sedimentation.

The invention relates to a laser cleaning system, which is applicable to cleaning dirt on a probe of a probe fixture. The laser cleaning system comprises a recognition unit, a processing unit which is connected with the recognition unit, and a laser generating unit which is at least driven by the processing unit. The recognition unit is erected at a corresponding position of the probe fixture, so as to recognize at least one probe to be cleaned on the probe fixture and obtain a recognition signal corresponding to the position of the probe to be cleaned; the processing unit receives the recognition signal and generates a driving signal; the laser generating unit is driven by the driving signal, thereby projecting at least one laser beam on the probe to be cleaned. The laser cleaning system of the invention can employ laser projection method to clean a certain probe to be cleaned on the probe fixture, thereby effectively increasing cleaning efficiency, reducing unnecessary laser energy waste and avoiding damage of the probe or peripheral structures.

The invention provides an acidic optical glass cleaner. The acidic optical glass cleaner comprises acid, a chelating agent, an organic solvent, a suffactant and water; the acid is one or more of phosphoric acid, oxalic acid and citric acid; the quality of the acid is 0.5%-2.5% of that of the acidic optical glass cleaner; the quality of the chelating agent is 1.0%-2.0% of that of the acidic optical glass cleaner; the quality of the organic solvent is 0.5%-2.5% of that of the acidic optical glass cleaner; the quality of the suffactant is 1.5%-5% of that of the acidic optical glass cleaner. Compared with the prior art, the acidic optical glass cleaner is simple in preparation method, low in cost, moderate in condition and environment friendly and safe, decontamination efficiency of optical glass is high through mutual cooperation of the various components, and the problem about cleaning of abrasive powder and a polishing solution is solved.

The invention provides a water treatment method combining ozone catalytic oxidation with an ultra-filtration membrane, which relates to a water treatment method and solves the problem that the removing rate of nitrogen, phosphor, COD (Chemical Oxygen Demand), BOD (Biochemical Oxygen Demand) and SS (Standard Specification) cannot reach the standards in the treatment of the water quality of the traditional urban water supply plants, the water quality of secondary discharge water of the urban sewage plants and the water recycling of industrial wastewater. The method comprises the following steps of: firstly, adding ozone to water to be treated; and secondly, treating the discharge water in the first step with the ultra-filtration membrane to complete. The water treatment method for combining ozone catalytic oxidation with the ultra-filtration membrane can effectively eliminate organic pollutant in water, odor, dull color and other pollutants, such as bacteria, virus, heavy metal, and the like, has very high depollution efficiency and can improve the treated water quality in an all-round way; the method is simple for running and easy for operation and management and can be applied to the process courses, such as the standard upgrading modification of the water quality of the urban water supply plant, the upgrading modification of the urban sewage plant, the recycling of the industrial wastewater, and the like.

A method of removing contaminants from slurry samples is set forth. The method includes the utilization of repeated pressurizing and depressurizing steps to disrupt solidified particles in solid-containing slurries thereby increasing decontamination efficiency. An expansion fluid is injected into the slurry sample sufficient to create microbubbles when the slurry sample is depressurized. The micro bubbles mechanically disrupt the solidified particles increasing contaminant exposure. The microbubbles also provide for increased interfacial regions where contaminants can accumulate at gas-liquid thin films that are in close proximity to and can be effectively removed using a suitable expansion fluid and optional decontamination agents.

The invention relates to a veterinary foam cleaning agent and a preparation method thereof which are applicable to animal stalls, hatching houses, farm utensils, vehicles passing in and out and the like. The veterinary foam cleaning agent is prepared from, by mass, 20%-32% of surfactant compound components, 2%-3% of detergent assistant, 4%-6% of chelating agent, 1.5%-2% of corrosion inhibitor, 3%-4% of foam stabilizer, 0.5%-2% of dispersing agent, 5%-6% of solubilizer and the balance purified water, and the sum of the contents of the components is 100%; the surfactant compound components are prepared from 3%-5% of anionic surfactant I, 2%-5% of anionic surfactant II, 8%-12% of nonionic surfactant I and 7%-10% of nonionic surfactant II. According to the veterinary foam cleaning agent, it is finally proved through the foaming effect and decontamination effect of a breeding field that the foaming effect is good, and foam is rich, exquisite, high in adhesivity and long in adhesive time; meanwhile, the decontamination effect is excellent, and stubborn stains such as hard stool, grease, the blood and biological membranes can be effectively removed.

The invention provides a nano-catalysis, electrolysis, flocculation and air-floatation device. A coagulative precipitation tank, a primary air-floatation tank, an electrolytic air-floatation tank and a slag-discharging tank are arranged in a housing of the device, wherein the top of the coagulative precipitation tank is provided with a water inlet and a mixer; the bottom of the coagulative precipitation tank is communicated with the primary air-floatation tank; a side sewage-draining outlet is connected with a sewage-draining pipe; a dissolved gas release pipe is arranged at the edge of the primary air-floatation tank; the sewage-draining outlet is connected with the sewage-draining pipe; the upper portion of the inner side of the primary air-floatation tank is communicated with the electrolytic air-floatation tank; the electrolytic air-floatation tank is divided into an upper layer and a lower layer by an upper-lower separator plate; a slag-scraping device is arranged in an upper gas-liquid separation chamber; an electrolytic cell is mounted between the upper layer and the lower layer of the electrolytic air-floatation tank; the bottom of the electrolytic cell is fixed on the inner bottom of the casing; the top of the electrolytic cell is open and horizontal with the top of the upper-lower separator plate; an electrode is installed in the electrolytic cell; and an interval between an anode and a cathode of the electrode serves as a water passage. The device integrates multiple functions of electrolysis, flocculation precipitation, air-floatation and the like together, has high automation degree, sewage-discharging efficiency and low running cost, and is convenient for operation and maintenance.

The invention relates to the technical field of sewage treatment, particularly a grid machine which comprises a machine frame, a transmission gear, a chain network, a cleaner, a garbage conveyor and a garbage can, wherein the lower part of the machine frame extends into sewage; the upper part of the machine frame is provided with a cleaning chamber; the chain network can be cleaned in the cleaning chamber; a bracket is arranged below the machine frame; the transmission gear is installed in the middle of the machine frame through a bearing; the chain network is wound on the transmission gear; the cleaner is arranged in the cleaning chamber on the upper part of the machine frame; the garbage conveyor is arranged below the cleaning chamber; the garbage can is positioned on the right end of the garbage conveyor; and the garbage conveyor conveys the flushed dirt into the garbage can. The grid machine can adsorb small-granule suspended substances, has high decontamination capacity, can clean the chain network, has the advantages of higher decontamination efficiency, simple structure and lighter weight, and is convenient for transportation and popularization.

The invention provides an ecological cleaning system used for river regulation, and the ecological cleaning system includes a grille pool, a regulating reservoir, a water distribution canal, constructed wetlands, a stabilization lagoon and a collecting well, which are connected in sequence; wherein, after being primarily filtered by the grille pool, the wastewater goes into the regulating reservoir to be regulated homogenously and averagely, the wastewater regulated by the regulating reservoir goes into the water distribution canal and then passes through in sequence the stair-stepping multistage constructed wetlands to be further filtered, the wastewater goes into the stabilization lagoon after being filtered by the multistage constructed wetlands to be purified, and the wastewater is discharged into a downstream water channel through the water well after being purified by the stabilization lagoon. The ecological cleaning system used for river regulation is short in cost and high in wastewater treatment efficiency, and the system beautifies the environment at the same time.

The invention discloses a coil-winding type electronic induction water processing circuit and a water processing method thereof, belonging to the field of electronic induction water processing. The coil-winding type electronic induction water processing circuit comprises a signal processor, a high-frequency generation circuit, a driving signal amplifying circuit, a high-frequency bipolar pulse generation circuit and a current detection unit which are connected in sequence; and the output end of the current detection unit is connected with the input end of the signal processor. The coil-winding type electronic induction water processing circuit and the water processing method thereof disclosed by the invention can be suitable for different water-quality environments, and have the advantages that the effects of preventing and removing scale, and killing bacteria and algae are achieved and the service life of water supplying equipment is prolonged.

The invention discloses a soapberry liquid composition which comprises the following components in parts by weight: 3-8 parts of soapberry saponin rhamnolipid fermentation refined matters, 2-6 parts of soapberry saponin lactic acid fermentation refined matters, 3-5 parts of Chinese honey locust saponin alcohol fermentation refined matters, 0.02-0.5 part of Lipolase, 0.01-0.3 part of pectinase, 0.2-0.5 part of sodium chloride, 0.5-3 parts of sodium citrate and 70-90 parts of water. According to the invention, the fermentation refined matters substitute soapberry or Chinese honey locust extracting liquor, so that impurities such as saccharides and proteins in the extracting liquor can be converted into useful components of the detergent, and the stability of liquid products can be greatly improved at the same time; soapberry saponin lactic acid fermentation refined matters are complex of the saponin and a biological surfactant rhamnolipid, so that the defect that the surface activity of the soapberry saponin is worse than that of a synthesized surfactant is effectively overcome.

A chemical decontamination apparatus of the present invention chemically dissolves radioactive substance-containing oxide films formed or adhering on the surface of a decontamination object by using ozone water to conduct decontamination. The chemical decontamination apparatus includes an ozone generating unit for generating ozone gas, an ozone supplying device for supplying the generated ozone gas to an ozone supplying unit in water, and a sintered metal element 37 which is disposed in the ozone supplying unit and to which ozone gas is supplied from the ozone supplying device. The ozone gas supplied to a sintered metal element interior from the ozone supplying device is allowed to flow out of the element into water so as to generate ozone water.

The invention provides a method for treating aquaculture sewage based on microbial degradation, and belongs to the technical field of environmental protection. According to the method, a filtering filler loaded with algae bacteria is provided for preliminary adsorption and filtration of sewage, and algae bacteria fixed pellets are provided for symbiotic purification of the sewage. The algae bacteria are placed in a nitrogen-free phosphorus-free culture environment for enlargement culture, and nitrogen and phosphorus domestication is performed before loading or fixing, when the domestication operation is terminated, a weight percentage of ammonia nitrogen in the culture environment is at least 25%, and a weight percentage of phosphorus is at least 20%. The method has remarkable decontamination and deodorization treatment effects, can adapt to large changes in the nitrogen and phosphorus content of sewage, and treatment temperature, has high microbial nitrogen and phosphorus tolerance and removal rate, and has low treatment input cost and energy consumption. The used filtering filler has large loading capacity, high adsorption capacity and adsorption efficiency, and low biological loss during a storage period. The used algal bacteria fixed pellets have high mass transfer efficiency, good anti-microbial decomposition performance, long storage period and effective use period, and high sewage treatment efficiency of the microorganism at a relatively low temperature.

The invention relates to a modified sphere-shaped sponge iron used for sewage treatment and a preparation method thereof, and belongs to the technical field of metallurgical production. The modified sphere-shaped sponge iron is used for reducing crystal grains in the sphere-shaped sponge iron and improving the specific surface area and the stability of the sphere-shaped sponge iron in air. The modified sphere-shaped sponge iron is characterized in that the modification sphere-shaped sponge iron has a porous structure, the diameter of a sphere ranges from 1 to 10mm, while the diameter of an internal elementary iron crystal grain is less than 1 micron, and the specific surface area is 0-50m<2> / g; the surface layer of the sponge iron is cementite with the thickness between 10 nanometers and 100 nanometers. The process of the invention includes material blending, sphere making, oxidizing roasting, direct deoxygenizing and carburizing of the sphere-shaped sponge iron, etc. In the invention, H2 is chosen as a reductant, thereby ensuring low temperature in the preparation of the sponge iron and ensuring the reductive sponge iron finer; the process of the carburizing of the sphere-shaped sponge iron is increased so as to ensure the surface layer of the sponge iron to be attached by a carburizing layer with the thickness between 10 nanometers and 100 nanometers and the sponge iron is not easy to undergo secondary oxidization. Compared with the prior art, the modification sphere-shaped sponge iron has the advantages of low production cost, high efficiency of stain removing, uneasy hardening and convenient storage and usage, etc.

The invention provides a method for treating water by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide and relates to a water treatment method. The water treatment method is used for solving the problems of a photosensitive method for generating singlet oxygen that a light source needs to be additionally added, secondary pollution is caused, and the utilization rate of singlet oxygen generated by adopting a chemical method is low. The method for treating water comprises the following steps: adding the inorganic solid peroxide and the peroxymonosulfate to water, reacting and stirring so as to complete the water treatment, wherein the water to be treated is source water and wastewater. According to the water treatment method, after the peroxide is dissolved in water, hydrogen peroxide slowly released reacts with the peroxymonosulfate rapidly to continuously generate the low-concentration high-activity singlet oxygen which can be efficiently utilized by pollutants, the self decomposition of the singlet oxygen is reduced, and the utilization rate of the singlet oxygen is increased. The method has the advantages that the pollution removal efficiency is high, no poisonous or harmful byproducts are generated, the additional equipment is not needed; and as solid reagents, the inorganic solid peroxide and the peroxymonosulfate are convenient to transport and store and are suitable for emergency treatment.

The invention provides a method for treating a reverse osmosis concentrated solution by using singlet oxygen produced from peroxymonosulfate under induction of inorganic solid peroxide and relates to a reverse osmosis concentrated solution treatment method. The reverse osmosis concentrated solution treatment method comprises the following steps: adding the inorganic solid peroxide and the peroxymonosulfate to the reverse osmosis concentrated solution and stirring so as to complete the reverse osmosis concentrated solution treatment. According to the reverse osmosis concentrated solution treatment method, after the peroxide is dissolved in water, released hydrogen peroxide rapidly reacts with the peroxymonosulfate to generate the high-activity singlet oxygen, and the generated singlet oxygen with strong oxidizing property can rapidly react with pollutants, oxidizes organic matters and inactivates microorganisms, thus achieving a good pollutant removal effect. As environmentally-friendly reagents, the inorganic solid peroxide and the peroxymonosulfate do not generate poisonous and harmful byproducts in the oxidative degradation process, and after the solution is treated, water can be directly discharged into a municipal sewage treatment system; and as solid reagents, the inorganic solid peroxide and the peroxymonosulfate can be directly added for use without need of additional equipment. The reverse osmosis concentrated solution treatment method has the advantages that the operation is simple and practicable and the reagents are convenient to transport and store.

The invention discloses a sewage treatment device and method based on a helotism electrochemical system. According to the invention, an H-type microbial fuel cell structure is adopted; a cathode chamber and an anode chamber are connected through a proton exchange membrane; an anode electrode is made of a carbon felt material, and an anaerobic microbial membrane is attached to the surface of the anode electrode; a cathode electrode is a titanium-plated ruthenium-iridium mesh electrode, a microalgal biological membrane is attached to the surface of the cathode electrode, and an aerobic biological membrane is attached to a middle filler; and a capacitor is arranged between the cathode and the anode. When microalgal photosynthesis is stopped at night, electric energy stored in daytime is released to drive the device to operate, so continuous and efficient removal of pollutants and effective recovery of microalgae are realized. By coupling the helotismsymbiotic system and the microbial fuelcell, nitrogen, phosphorus and organic matters in the sewage are synchronously removed; the device and the method have the characteristics of low treatment cost, simple operation process and high energy utilization rate, and the defects of time consumption and power consumption of the traditional sewage treatment technology and the problems of low power generation efficiency and poor treatment efficiency of common microbial fuel cells are overcome.

The invention relates to a method for measuring radioactive surface pollution. The method at least comprises the following steps: testing response characteristics of an alpha channel and a beta channel when alpha and beta particles simultaneously exist in a radiation detection device by using a plurality of first standard sources comprising typical nuclides; providing a second standard source of pure alpha particles to determine the response of the alpha particles in the beta channel of the radiation detection device, thereby pre-determining the response coefficient of the beta channel of theradiation detection device to the incident alpha particles; providing a second standard source of pure beta particles to determine the response of the beta particles in the beta channel of the radiation detection device, thereby pre-determining the response coefficient of the beta channel of the radiation detection device to the incident beta particles; dividing the alpha channel response coefficient by the alpha channel counting rate to obtain alpha surface pollution; deducting the alpha particle counting rate by the beta channel counting rate, multiplying the alpha particle counting rate bythe optimized response coefficient of the beta channel to the alpha particles, and dividing by the beta particle response to obtain the beta surface pollution.

The invention discloses a water treatment compound agent for removing organic pollutants in an oxidation mode with high-activity singlet oxygen and a water treatment method of the water treatment compound agent, and relates to water treatment agents and methods for removing pollution in oxidation modes. The problems that when the singlet oxygen is produced through a photosensitization method, a light source needs to be added, secondary pollution is generated, and the use efficiency of the singlet oxygen in a chemical method is low are solved. The water treatment compound agent is composed of bleaching powder, inorganic solid peroxide and powdered activated carbon, and the mass ratio of the bleaching powder to the inorganic solid peroxide to the powdered activated carbon is (1-10):1(1-10). According to the water treatment compound agent, hypochlorite ions provided by the bleaching powder reacts with hydrogen peroxide slowly released after the peroxide is dissolved in water to generate the high-activity singlet oxygen, and through a micro-interface provided by the powdered activated carbon, the self-decomposition of the singlet oxygen can be restrained, the survival time of the singlet oxygen can be prolonged, and the use ratio of the singlet oxygen is improved. The water treatment compound agent is high in efficiency of removing the organic pollutants in the oxidation mode, cannot generate poisonous and harmful by-products, and is convenient to transport and store and more suitable for emergency treatment.

The invention relates to a device and a method for removing ultrasonic electrochemical radioactive contaminations of nuclear facilities, and belongs to the field of nuclear industrial radioactive waste treatment. The device is provided with an ultrasonic decontamination part and an electrochemical decontamination part, and comprises an electrochemical decontamination system, an ultrasonic decontamination system, an electrolyte heating system, an electrolyte circulating system and a controller. The method comprises the following steps: (I) the device for removing the ultrasonic electrochemical radioactive contaminations of the nuclear facilities is reasonably arranged on the scene according to the scene conditions; (II) a decontamination agent is added in the device; the temperature is adjusted according to workpiece demands; and the electrolyte circulating system is started; (III) decontaminated workpieces are placed; electrochemical and ultrasonic parameters are set; and the time is adjusted according to the decontamination conditions; and (IV) the decontaminated workpieces are cleaned and dried. A novel comprehensive decontamination process of combining ultrasonic and electrochemical methods is adopted to achieve such characteristics as low output of secondary wastes, high decontamination efficiency and uniform distribution of the surface current of the decontaminated workpieces.

The invention discloses a bridge-type cleaning machine, which belongs to the field of automatic removal devices for floating objects in rivers. The positioning pier on one side of the bank; its structural feature is that the positioning pier is provided with a bridge positioning device for fixing the bridge on the positioning pier, and the bottom side of the bridge is equipped with a trash rack with the lower part placed in the water. There is a longitudinal channel for the reciprocating and linear movement of the cleaning trolley inside, and a cleaning sweep placed in the water for cleaning floating objects is connected to the lower end of the cleaning trolley. The invention can realize full-automatic decontamination work 24 hours a day, and the bridge can be lifted and lowered according to the rise and fall of the river water, and the decontamination efficiency is high. In addition, the bridge can rotate along the lifting pier to leave the river, so it will not affect shipping.

The invention belongs to a mechanical dust removal device and in particular relates to a venturi tube dust removal device. The device comprises a shrinkage section, a throat section and an expansion section, wherein the shrinkage section, the throat section and the expansion section are conical shells; the shrinkage section and the throat section are laminated; an annular channel is formed between the outer wall of the shrinkage section and the inner wall of the throat section; multiple small holes are formed in the throat section; the lower end of the expansion section is connected with the upper end of the throat section; and supporting ribs and an outlet baffle are arranged on the top of the expansion section. According to the device disclosed by the invention, the decontamination efficiency of a venturi tube can be obviously improved.

The invention provides active carbon and modification method as well as application thereof in processing water containing endocrine disrupters. The active carbon is arranged in a muffle furnace silica tube; under the room temperature, hydrogen is pumped into the muffle furnace at first for 0.5 to 1.5 hours; the hydrogen flowing speed is 40 to 60ml / minute; then under the protection of the same hydrogen flow, the temperature of the muffle furnace is raised to 500-900 DEG C by the speed of 10 DEG C / minute and then the temperature is maintained for 1 to 5 hours; after the temperature is reduced to 30 DEG C, hydrogen pumping is stopped; then the air is pumped continuously for one hour by the flux of 40 to 60ml / minute; then the active carbon is taken out, and is added into a container together with muriatic acid with a volume by volume concentration of 35 percent according to a weight percentage of 10 percent for boiling and reflowing for 2 to 4 h; then de-ionized water is used for leading the sample of the active carbon to be detected without chloridion to obtain the modified active carbon. The modified active carbon prepared by the invention is used as a sorbent in the treatment process and has larger absorption capacity and renewable performance than that of raw carbon, and can realize to completely remove the endocrine disrupters under lower carbon inputting amount.

An object to be decontaminated contaminated with radioactive material is introduced into an acid eluting solvent to dissolve the radioactive material. The radioactive material dissolved is concentrated and separated from the eluting solvent in the present method. The object to be decontaminated comprises contaminated soil and contaminated liquid. One or both of the contaminated soil and the contaminated liquid are collected and introduced into the eluting solvent. The radioactive materials and the object to be decontaminated dissolved in the eluting solvent are separated into solid and liquid. The decontaminated soil separated from the eluting solvent is collected. The eluting solvent used for separating the radioactive material and in which radioactive material is dissolved is concentrated.

The invention discloses a one-stop refitting process for steel drums, and belongs to the technical field of refitting and recycling of waste steel drums. The refitting process includes the steps of uncovering by an uncovering device, dust removing by a dust removing device, shot blasting by a shot blasting device, shaping by a shaping device, anti-rust treatment by an anti-rust device, baking by abaking device, spraying by a spraying device, and covering by a covering device. The refitting process has the advantages that the uncovering production efficiency is high, resource saving is betterachieved in dust removing, the cost is reduced, the shot blasting decontamination efficiency is higher, and paint spraying is more uniform.

The invention relates to an intelligent multifunctional radioactive contamination removing instrument. The instrument includes a decontamination head detection device for quickly positioning and detecting radionuclide contamination parts and contamination amounts on a human body surface and then removing radionuclide contamination through a dry negative pressure aspiration mode or a wet mode of ejecting decontamination liquid for washing and then conducting negative-air pressure automatic-back-suction, a radioactive waste storage device for conducting temporary storage on radioactive waste andwaste water which are obtained through negative-air pressure aspiration and filtered, a decontamination liquid storage device for providing the decontamination liquid for the decontamination head detection device, an air source device for providing negative pressure for the radioactive waste storage device, and a control device for detecting the activity and water level condition of the radioactive waste in the radioactive waste storage device, controlling sewage discharge of the radioactive waste storage device, and setting a negative pressure value of the air source device. The instrument is compact in structure and small in volume, detection, decontamination and radioactive contamination waste collection are integrated, real-time tracking detection is achieved, and the decontaminationefficiency is high.