11961 results about "Hazardous substance" patented technology

The invention discloses an attapulgite argil powder with an air purifying function. The technical scheme is as follows: the attapulgite argil powder with an air purifying function is prepared from high-viscosity attapulgite clay, an attapulgite constant-humidity conditioner, a natural mineral adsorbing/filtering agent, Cacumen Biotae, aluminum silicate fiber and polyacrylamide. The attapulgite argil powder is prepared by the following steps: pulverizing the materials, soaking and aging to obtain a wet mixture, extruding the wet mixture into a strip, airing the strip, pulverizing to obtain powder, and packaging to obtain the finished product. The attapulgite argil powder has favorable cohesive property, plasticity, thixotropy, fire resistance and thermal stability; the pottery prepared from the attapulgite argil powder with an air purifying function contains a great deal of micropores and activated carbon, thus, has the characteristics of low shrinkage, no cracking or deformation and favorable adsorbability, and can effectively adsorb formaldehyde, ammonia, benzene and other harmful substances in the air, thereby protecting the environment and improving good health of people. The invention is suitable for producing pottery artware with an air purifying function.

The invention relates to the field of food, in particular to enteromorpha potato chips and a processing method thereof.The potato chips are full of seafood flavor, tasty in sour and sweet taste and slightly salty.The potato chips are golden matched with emerald green, and the color is very attractive and promotes appetite.The potato chips are unique in flavor, and have rich enteromorpha fresh flavor, and with the aromatic odor of orange juice, the potato chips can enable people to be full of energy and enhance appetite.Crisping of the potato chips is matched with flexibility of syrup, softness and hardness of the crisping sense are combined, and innovation and interest are added.The potato chips are safe and healthy, aginomoto and other hazardous substances are not added, and all indexes of enteromorpha powder conform to national safety standards.The potato chips are abundant in nutrition, and malnutrition, obesity and hazardous substance intake and other negative health problems caused when people eat a large number of potato chips are relieved.The potato chips have the healthcare function.

The invention discloses a corrosion-resistant magnesium aluminum alloy chromium-free passivation solution, which comprises the following components: 10-40 parts of water-base resin, 1-10 parts of nanoparticle sol, 1-10 parts of fluoric-containing acid, 1-5 parts of fluoric acid-containing salt, 1-5 parts of a rare earth catalyst, 1-10 parts of a silane coupling agent, 1-5 parts of a corrosion inhibitor, 1-2 parts of a complexing agent and 40-70% of water. The corrosion-resistant magnesium aluminum alloy chromium-free passivation solution does not contain chromium and other toxic and harmful substances, meets the ROHS environmental protection law of the European Union, and meanwhile, can form an organic and inorganic composite passivation film and a thin film on the surface of a magnesium aluminum layer, and the formed composite passivation film has an excellent physical property and corrosion resistance, and has higher corrosion resistance and long salt fog time, so that the corrosion resistance of a magnesium aluminum alloy plate is better improved.

A device and a method for treating a medical condition include a reversible member disposed in a patient's gastro-intestinal tract, and a dispensing member coupled to the reversible member that delivers a drug and/or a noxious when a predetermined substance is detected. In a different embodiment, the device and method of the present invention include a polymer infused with a drug and disposed into a preformed shell inside the gastric space, where it expands and hardens, releasing the drug over time. Both the casing and the polymer may be biocompatible. The present invention enables the slow-release of anti-addictive agents without patient tampering and with the appropriate dosage. Ancillary systems such as sensors, actuators, refill and recharge ports, and communication and data processing units may also be included.

The invention provides materials and methods for the administration of an effectively magnetic medication or diagnostic reagent, or for the removal, sequestration, or effective conversion to a non-deleterious condition of a deleterious substance such as a toxin (e.g., biological, chemical, or radiological compound or composition) in vivo by administering a biocompatible magnetic particle to an organism in need, e.g., by delivery to the bloodstream, with the organism optionally having an internal magnetizable stent or magnetizable seed. The materials and methods are useful in the diagnosis and treatment of a variety of acute and chronic diseases, disorders and conditions afflicting man and other organisms, as well as for the removal of a variety of deleterious substances, including toxins, with the optional aid of an external magnetic generator and an optional magnetic filtration device.

A method and device for removing, deodorizing and purifying odor, smoke and harmful substances from exhaust gas or flue gas employs a water solution containing hypohalogen acid such as hypochlorous acid soda, an alkaline electrolyte such as potassium hydroxide or sodium hydroxide and a saline electrolyte such as sodium chloride, potassium chloride, sodium bromide or potassium bromide which is electrolyzed to produce an electrolytic water solution which is fed to a deodorizing tower and brought into contact with exhaust gas or flue gas to remove odor, smoke and harmful substances in the exhaust gas or flue gas.

For improving driver's awareness about emissions and promoting environmental protection, an emission amount notifying device is provided. When such a taxation system becomes effective that a tax is imposed in accordance with an amount of one or more kinds of harmful substances, which include a carbon dioxide, nitrogen oxides, sulphur oxides and hydrocarbons emitted from a vehicle, a sensor determines the emission amounts of respective harmful substances, and a CPU obtains the amount of tax corresponding to the determined emission amounts from a ROM storing tax information related to the tax amounts corresponding to respective displacements, and displays the obtained tax amount on a display device. Further, the CPU sends the information relating to the determined emission amount to a server of authorities from a communication unit for performing tax payment procedures.

A monitoring network system for inspecting and controlling harmful substances includes probe assemblies that each includes a sensor comprising nano structured surfaces or nano particles in a solution, configured to adsorb molecules of a sample material captured adjacent to the sensor, a laser that can emit a laser beam to illuminate the molecules adsorbed to the nano structured surfaces, a spectrometer that can produce spectral data from light scattered by the molecules adsorbed to the nano structured surfaces, and a ID reader that can retrieve identification information about the sample material. A central office can determine a spectral signature matching spectral signatures stored in a database and to identify a harmful substance in the sample material. An alert and response system can send out an alert signal about the sample material when the harmful substance is identified in the sample material.

The invention relates to a pest-proof disease-resistant organic fertilizer and a preparation method thereof, belonging to the technical field of organic fertilizers. Tobacco waste and oil tea pulp are utilized as main raw materials to develop a method of the pest-proof disease-resistant organic fertilizer. The invention breaks through the limitations of harmful substances and single product effect due to addition of chemical materials in the traditional organic fertilizer. The pest-proof disease-resistant organic fertilizer is prepared from the following raw materials: tobacco waste, oil tea pulp, organic substances, a poising agent and a microbial inoculant. The preparation method of the organic fertilizer comprises the following steps: crushing tobacco straws, tobacco stems, tobacco powder, oil tea pulp and organic substances, spraying the poising agent and microbial inoculant, mixing, carrying out pool stack fermentation and strip stack fermentation, screening and granulating to obtain the insect-proof disease-resistant organic fertilizer. The high-efficiency biological insect-inhibiting factors contained in the organic substances containing massive mycoprotein can effectively inhibit and kill pests and pathogenic bacteria, and solve the problem of environmental pollution caused by the pesticide fertilizer.

The invention relates to a method for preparing xylose by using squeezed waste alkali in the viscose fiber production process. According to the method, xylose finished products are obtained through work procedures of hemicellulose solution preparation, hemicellulose extraction, hemicellulose hydrolysis, neutralization and deacidification, preconcentration, decoloration, ion exchange, ordinary concentration, crystallization, separation and drying. When the technical scheme provided by the invention is adopted, harmful environment-pollution substances such as waste alkali and waste water generated in the viscose production process can be thoroughly eliminated, the standard of full-flow-process clean production can be reached, viscose production enterprises can also produce xylose in the viscose production process, the goal of environment protection is reached, and meanwhile, the waste reutilization is also realized.

The invention relates to a system for controlling the concentration of a detrimental substance, in particular H₂S, in a sewer network. The system comprises a monitoring device arranged at a monitoring location in the sewer network and at least one dosing controller arranged at a dosing location upstream the monitoring location. The monitoring device is arranged for providing a signal indicating a measured H₂S concentration at the monitoring location and for transmitting a radio frequency signal carrying information about the H₂S concentration. The dosing controller is arranged for receiving the radio frequency signal, deriving a concentration signal based on the radio frequency signal, calculating a dose of a preselected additive based on the derived concentration signal, and supplying a dosing signal to a dosing device, causing the dosing device to add the calculated dose at the dosing location. Advantageously, the calculating of a dose also takes into account critical process indicators acquired at the dosing location. A main controller is arranged to communicate with the at controllers, and various control tasks are distributed among the main controller and the dosing controllers.

The present invention provides a filter with which organic matter, bacteria, viruses, and other harmful substances can be trapped, and the trapped material can be sterilized and decomposed, at low cost and extremely high efficiency. A porous ceramic or metal is used as a substrate, and a porous semiconductor composed of a semiconductor material having a light emitting function is formed in the interior or on the surface of this substrate. An electrode is provided to this product to serve as a filter, voltage is applied so that ultraviolet light is emitted while a fluid is being filtered, and any harmful substances are filtered and simultaneously sterilized and decomposed. The porous semiconductor layer is preferably composed of columns grown perpendicular to the substrate plane, and has the function of emitting ultraviolet light with a wavelength of 400 nm or less. The pores in the porous substrate column are through-holes perpendicular to the substrate plane, and the average size of these pores is preferably from 0.1 to 100 μm. The distal ends of the columns preferably have a pointed shape. To manufacture, a suspension of semiconductor particles having a light emitting function is filtered through the porous substrate serving as a filter medium so as to form a deposited layer of semiconductor particles on the porous substrate surface. A deposited layer of p-type semiconductor particles and a deposited layer of n-type semiconductor particles may also be formed so that these form a pn junction. Further, the present invention is characterized in that an insulating layer is formed on the top and bottom surfaces of the porous semiconductor layer, and semiconductor particles are dispersed in the insulating layer, with the bandgap of the semiconductor particles in the porous light emitting layer or the porous semiconductor layer being at least 3.2 eV, and being doped with gadolinium, which is the light emitting center.

In addition, the porous semiconductor layer may be made of porous silicon nitride composed of columnar Si₃N₄ particles with an average aspect ratio of at least 3 and an oxide-based binder phase containing at least one of rare earth element, and emit visible light or ultraviolet light.

The invention discloses an automatic dispensing robot system and an automatic dispensing method, which are used for preparing an intravenous infusion solution. The system comprises a closed cavity, wherein the closed cavity can be opened, and an input module, a powder bottle shaking module, an ampoule bottle breaking module, a disinfection module, a quantitative injection module and a visual detection and motion control module are arranged in the closed cavity. According to the automatic dispensing robot system, the breaking, disinfection and quantitative suction of an ampoule bottle, the disinfection and quantitative suction of a powder bottle and the mixing with a mother solution can be automatically realized, and the solution is prevented from being polluted; additionally, nursing personnel are prevented from being radiated and hurt by harmful substances; the probability of misoperation is reduced; the operating standard of intravenous infusion dispensing is standardized; and the dispensing efficiency is increased.

The invention relates to a composite fiber. The composite fiber comprises a fiber carrier, and a graphene aerogel layer covering the outer side of the fiber carrier. According to the composite fiber provided by the invention, the relatively thin graphene aerogel layer covers the surface of the composite fiber, and a self surface shielding effect of existing graphene aerogel is overcome; the adsorption speed and adsorption efficiency of the graphene aerogel of the unit volume are improved; the fiber carrier of the composite fiber provided by the invention provides a bracket for the graphene aerogel and the mechanical strength is enhanced; when the composite fiber is used as an adsorption material, the composite fiber can be in seamless butt joint with an existing cigarette production process directly, and replaces an existing adsorption fiber so that the specific adsorption on benzopyrene polycyclic aromatic hydrocarbon type harmful substances can be realized; and meanwhile, other aromatic substances in smoke are kept so that the flavor and aroma of cigarettes are not influenced.

The invention relates to a phosphorus-free metal cleaning agent comprising the components of, by weight, 2-20% of a cleaning aid, 1-20% of a surfactant, 1-10% of a chelating agent, 1-20% of an emulsifier, 1-10% of an antirust agent, 0.2-4% of a copper alloy corrosion inhibitor, 1-10% of a penetration agent, 1-6% of a solubilizing agent, 0.1-0.6% of a defoaming agent, and balance of water. The cleaning agent provided by the invention has excellent cleaning capacity, long rust proof period, low foam, long service life, and the like. The cleaning agent is suitable for ferrous metal and non-ferrous metal processing industries. The agent has the advantages of no volatilization, no irritation, no toxic or harmful substance such as nitrite, no damage to health, and no environment pollution.

Ammunition, consisting generally of a casing, propellant, projectile and primer, is entirely coated with a coating that renders the ammunition resistant to infiltration by moisture or deleterious matter, such as sand or salt, that have the effect of fouling the propellant or otherwise causing the ammunition to misfire or not fire properly. Methods of making ammunition in accordance with the invention are described.

A system and methods of the present invention advantageously provide efficient mail processing and handling that, as compared to existing procedures, enhances detection within the mail being processed or handled of biological, germ, chemical, or other harmful agents. A system and methods provide additionally a higher level of quality and consistency for processing and handling mail so that concerns over contamination of postal workers and potential mail recipients are reduced. A system and methods further provide enhanced disabling of contaminated mail contents, mail, mail equipment, mail containers, and mail personnel due to exposure or contact with harmful agents associated with mail.