78 results about "Ozone pollution" patented technology

The invention relates to the technical field of air purification filters, in particular to an air purification filter, which comprises a shell, wherein a PM2.5 particle filtering layer, an organic pollutant purifying layer and an ozone catalytic purification filtering layer are arranged inside the shell, and simultaneously at least one layer among an initial effect filtering layer, an antibacterial filtering layer and an anion generating layer made of anion generating materials is also arranged inside the shell. The novel air purification filter purifies the indoor air and simultaneously can also purify PM2.5 lung impairment particles and ozone exceeding the national sanitary safety standards due to atmospheric haze pollution and near-earth ozone pollution, and has important practical significance of improving the life quality and preventing diseases caused by air pollution.

The invention belongs to the technical field of environmental monitoring and relates to an atmospheric pollution tracing system. The system comprises an emission source input module used for inputtingemission data, an initialization module used for setting the initial concentration of pollutants, an atmospheric chemistry module used for simulating a chemical process in an air mass movement process according to the input emission data, an atmospheric physical module used for inputting meteorological parameters and simulating a physical process in the air mass movement process according to themeteorological parameters, and a result output module used for outputting the concentration of the pollutants and the rate of the atmospheric chemical reaction process, quantifying the contribution ofregion transmission and local generation to the O3 concentration of a target region, and quantifying the contribution of different chemical processes to the O3 concentration of the target region. According to the system, atmospheric physical and chemical processes are comprehensively considered, the evolution of the pollutant concentration and the chemical reaction rate of gas mass in the movement process in the space-time scale is restored, a discharge area causing ozone pollution in the target area is accurately located, a precursor and a discharge department are optimally controlled, and scientific support is provided for formulating the control measures of the ozone pollution in the target area.

The embodiment of the invention provides an ozone pollution source identification method and system based on satellite remote sensing, and the system comprises 1) a tropospheric ozone profile inversion module which inverts a tropospheric ozone profile through TropOMI ultraviolet hyperspectral data; 2) a near-surface ozone pollution source indication value inversion module for obtaining the concentrations of near-surface NO2 and HCHO by using TropOMI troposphere NO2 and HCHO column concentration products in combination with an atmospheric chemical model Geos-Chem, and calculating the concentration ratio of the near-surface NO2 to the HCHO to obtain a near-surface ozone pollution source indication value; 3) a near-surface ozone concentration inversion module which integrates NO2, HCHO, ozonemonitoring values of ground national control stations and the like and acquires near-surface ozone concentration through a multiple regression model; and 4) an ozone pollution source target identification module for selecting an ozone heavy pollution area by using the near-surface ozone concentration result, and identifying the ozone pollution source by combining the near-surface ozone pollutionsource indication value and the sub-meter high-resolution image.

The invention discloses a preparing method of an ACF (activated carbon fiber) catalyst loaded with a transition metal oxide and capable of degrading VOCs (volatile organic compounds) at room temperature. The preparing method comprises pretreating ACF in a nitric acid solution with the volume concentration of 5-30%, performing impregnation to load any one of transition metal elements including Mn,Fe, Cu, Ni, Co, Zn, Cr and the like after pretreatment, performing ultrasonic treatment for 0.5-4 h to achieve uniform dispersion, and preparing the ACF catalyst loaded with the transition metal oxidethrough calcination in a temperature programming muffle furnace. The prepared ACF catalyst loaded with the transition metal oxide has the advantages that efficient catalytic degradation on the VOCs at the room temperature can be realized in an ozone atmosphere without ozone pollution; the catalyst has the advantages of large specific surface area, rich micropores, low cost, high catalytic degradation efficiency and the like, thereby having a prospect in industrial application.

An air conditioner having a light wave unit for auxiliary heating and sterilizing is provided, which comprises a conventional air conditioner including a filter (8), an evaporator (5), a cross-flow fan (6) and a motor (9). The light wave unit includes a light wave tube (2), a temperature sensor (4) and a controller (7). The light wave tube is provided between the evaporator (5) and the cross-flow fan (6), the temperature sensor (4) is mounted on the evaporator (5), and an input port of the controller (7) is coupled to a signal output port of the temperature sensor (4) while an output port of the controller (7) is coupled to a power input port of the light wave tube (2). The advantage of the air conditioner is that the light wave tube is provided to fulfill an auxiliary heating and sterilizing operation. The air conditioner can overcome not only the defects with an ultraviolet unit in the art that are harmful to a human body and causes materials to be aged, but also the defects with an ozone unit in the art that will generate ozone pollution and a high-voltage. The air conditioner is friendly to the environment and convenient for users.

The invention discloses a dynamic decision-making method and device for ozone pollution prevention and control. According to the method and the device, an ozone pollution prevention and control dynamic decision-making technical route of monitoring and early warning, ozone source analysis, decision-making evaluation and standard reaching and performance is realized. And establishing a measure library according to the emission list, and continuously evaluating and optimizing the measure library through the effect of scene simulation. The local list and the regional list are fused to realize refined and quick source tracing of ozone and precursors thereof; multi-dimensional comprehensive source analysis of models, observations and lists is realized, and key emission areas and key pollution industries are accurately judged; and quick evaluation and dynamic optimization of ozone pollution standard reaching planning are realized. By means of three-dimensional monitoring, emission lists, numerical simulation, emergency emission reduction technologies and the like, ozone pollution sources are subjected to multi-dimensional analysis, source contributions of local areas, surrounding areas and pollution industries are quantitatively analyzed, and key causes of urban ozone pollution are recognized.

The invention relates to a high voltage insulating rod detection table used for insulating rod electric leakage detection. The high voltage insulating rod detection table comprises a pair of fixtures used for clamping an insulating rod, and an insulating base used for fixing the fixtures. Each fixture comprises an upper clamping plate and a lower clamping plate, wherein the upper clamping plate and the lower clamping plate can be closed and opened, opposite faces of the upper clamping plate and the lower clamping plate are respectively provided with clamping holes, the clamping holes in the upper clamping plate and the clamping holes in the lower clamping plate correspond to each other one to one, the lower clamping plate is fixed to a metal base, and the middle of the metal base and the upper end of the insulating base are fixed. The high voltage insulating rod detection table can conduct electric leakage detection on insulating rods in batches, and the detection efficiency is greatly improved; meanwhile, the corona phenomenon and the ozone pollution and emission phenomenon are greatly reduced, and occupational hazards caused to staff in the detection process are reduced.

The invention discloses a catalytic ozonation catalyst and a method of using same for treating biochemical waste gas, wherein the carrier of the catalyst is a mixture of struvite and dried sludge, preferably a mixture of plasma-modified struvite and dried sludge, and more preferably, a mixture of yttrium- and plasma-modified struvite and dried sludge, the struvite and dried sludge being sourced from byproducts of wastewater treatment. The catalyst has good adsorption effect on harmful substances in the waste gas. The waste gas is treated with ozone and then is washed in water, so that the waste gas is treated to odorless for discharge, thus preventing ozone pollution.

The invention discloses a convenient early warning method for atmospheric ozone pollution, and the method comprises the steps: (1) obtaining physical parameters, including air temperature, total solar radiation irradiance, cloud amount, particulate matter concentration and nitrogen oxide concentration, affecting the generation of atmospheric ozone through analyzing the external conditions of the generation of atmospheric ozone; (2) determining inflection point values of the physical parameters according to atmospheric ozone generation conditions, and assigning values after interval division; (3) acquiring historical data of physical parameters related to atmospheric ozone generation in a to-be-warned region within a period of time, and obtaining a weight of each physical parameter by utilizing a constructed Logistic regression model; and (4) calculating an ozone concentration influence factor result value according to the interval assignment result and the weight of the physical parameters, and determining an early warning interval and a corresponding early warning level. The method provided by the invention is convenient to implement, improves the early warning advance, and has certain guiding significance for atmospheric ozone pollution prevention and control work.

A liquid catalyst for room-temperature catalytic ozonolysis is disclosed. The catalyst is prepared by the following method: dissolving metal salt in water, adding a complexing agent and a surfactant,and uniformly stirring to obtain a mixed solution; and stirring the obtained mixed solution at a temperature in a range of room temperature to 95 DEG C for 0-40 minutes, adding a solvent, crystallizing at 120-200 DEG C for 1-8 hours, cooling to room temperature, carrying out suction filtration, filtering out solid, and dispersing the solid in the solvent to obtain the catalyst. The process is simple, the cost is low, and the application range is wide. The prepared active spraying liquid does not need roasting, theoretically, atomization spraying loading can be flexibly carried out on the surfaces of objects in any shape and made of any material, the objects can be endowed with the ozone catalytic decomposition capacity after drying, the space is fully utilized to allow ozone to be in fullcontact with a catalytic material as much as possible, so that environmental ozone is efficiently decomposed, and the purpose of treating ozone pollution is achieved.

The invention provides a supported silver-manganese catalyst as well as a preparation method and application thereof. The supported silver-manganese catalyst comprises porous cube-shaped alpha Mn2O3 and Ag elementary substance loaded on the porous cube-shaped alpha Mn2O3, the mass content of the Ag elementary substance is 1-4%, ozone can be efficiently decomposed for a long time, various ozone-containing gases can be treated, and the catalytic activity of the supported silver-manganese catalyst is improved. The catalyst is expected to be used for solving the ozone pollution problem in the atmosphere on the outer surface of a building or a motor vehicle radiator, and can be applied to high-altitude aircrafts to solve the ozone pollution problem.

The invention provides a big data and air quality model combined ozone pollution source tracing and verification method. The big data and air quality model combined ozone pollution traceability and verification method comprises the following steps: S1, analyzing ozone concentration high-value sites in a typical pollution process based on historical air quality monitoring data; s2, using a CAMx-OSAT model traceability model to determine key contribution areas and industries affecting the site; and S3, superposing the traceability result with a local refined emission list and industrial park space distribution information, carrying out correlation analysis, and screening VOCs and NOx high-emission pollution sources and industrial parks in the key contribution area. According to the ozone pollution traceability and verification method combining the big data and the air quality model, the air quality model technology is combined with big data information such as air quality monitoring, emission list, pollution source monitoring and industrial enterprise electricity consumption monitoring, and traceability is accurate.

The invention discloses an ozone concentration inversion method based on a horizontal scanning laser radar. The method comprises the following steps of: obtaining ozone concentration distribution on a horizontal plane through scanning an echo signal of a laser radar, and obtaining original data; preprocessing the original data; carrying out segmented sliding fitting on the whole profile at a fixed fitting step length by utilizing a Collis method, and selecting an initial reference value from data of which the signal-to-noise ratio is greater than a signal-to-noise ratio empirical threshold; and carrying out forward integration and backward integration by utilizing a Fernald method, converting the aerosol extinction coefficient obtained by calculating the weak absorption wavelength into the aerosol extinction coefficient of the strong absorption wavelength by utilizing a wavelength conversion coefficient, and substituting the aerosol extinction coefficient into a differential absorption formula to obtain the ozone concentration. According to the ozone concentration inversion method based on a horizontal scanning laser radar, error calculation is carried out by combining a Collis method and a Fernald method based on the horizontal scanning detection and differential absorption principle, and horizontal scanning monitoring of regional ozone pollution distribution is realized.

The invention discloses an ozone gas floatation circular processing apparatus, and mainly solves the problems, such as ozone pollution or waste of ozone resource due to an ozone gas floatation device in the prior art, and low utilization rate of ozone. The ozone gas floatation circular processing apparatus comprises a flocculation reaction tank, a gas flotation tank and a clean water tank which communicate with the flocculation reaction tank in order; the top part of the gas floatation tank is connected with a sludge scraper and a tail gas collection cover in order; the tail gas collection cover communicates with an ozone generator and a gas-liquid mixing pump in order through pipelines; the gas-liquid mixing pump is provided with a liquid inlet and a gas-liquid outlet, the liquid inlet communicates with the clean water tank, and the gas-liquid outlet communicates with the gas floatation tank. The problems such as ozone pollution or waste of ozone resource and low utilization rate of ozone are solved, and the apparatus has a practical value and a promotional value.

The invention discloses a method and a device for ozone generation sensitivity determination and precursor controlling, a storage medium and a terminal. The method comprises: calculating the value ofa parameter R't which characterizes photochemical reaction sensitivity at time t; using the maximum value of the absolute value of the R't to perform numerical value normalization on the R't; determining the ozone photochemical reaction sensitivity at the time t according to the positive and negative and the value of a calculation result of Rt; and calculating reduction control ratios of emissionsof ozone precursors VOCs and NOx in an ozone pollution control time period of the city according to Rt value statistics TVOCs-limited and TNOx-limited of VOCs-limited and NOx-limited in an ozone pollution to-be-controlled time period in a city. The method does not need a high-precision air pollution source emission inventory, weather data, unconventional monitoring air component data and the like, and has an extremely-low data input threshold.

The invention discloses a Fourier series-based ozone total amount change prediction method. The method specifically comprises the following steps of step 1, acquiring data; step 2, carrying out data processing; step 3, carrying out significance test; step 4, carrying out precision evaluation; step 5, carrying out fitting processing; step 6, performing analysis and inspection; step 7, performing prediction input. The invention relates to the technical field of ozone change prediction. According to the Fourier series-based ozone total amount change prediction method, in the interpolation calculation and data fitting process, ozone pollution spatial and temporal distribution characteristics and evolution rules are analyzed, ozone pollution characteristics and change trends are grasped, and by utilizing the fitting relation from the two aspects of ozone time change and spatial distribution total amount, the relationship of ozone pollution along with time change is analyzed, the change condition of the total ozone amount in the future is reasonably predicted, meanwhile, reasonable suggestions for improving the ozone pollution condition are proposed through the prepared ozone pollution spatial distribution diagram, and powerful support is provided for establishing a good atmospheric environment system.

The invention discloses an application of sodium nitroferricyanide and/or sodium nitroprusside in slowing down output reduction of agricultural crops. The invention further provides a method of slowing down effects of ozone pollution to output reduction of agricultural crops. The method comprises a step of spraying sodium nitroferricyanide aqueous solution on agricultural crops polluted by ozone. Therefore, effects of ozone pollution to output reduction of agricultural crops can be slowed down. The sodium nitroferricyanide and/or sodium nitroprusside can alleviate damages of ozone to agricultural crops; and agricultural crop output loss due to ozone pollution can be reduced.

The invention discloses a marine pollution data acquisition method, which comprises the following steps: detecting the ozone concentration of a target marine area through ozone foundation observation, determining a to-be-selected point set according to the ozone concentration, obtaining an aerosol to-be-detected area according to the to-be-selected point set, and detecting the aerosol concentration of the aerosol to-be-detected area through satellite remote sensing. And treating the aerosol concentration to obtain a pollution threat area, and giving out early warning according to the pollution threat area. According to the method, aerosol data is obtained by combining the ozone sensor on the ground and satellite remote sensing, a potential pollution area is obtained and pollution prediction is realized through ozone pollution and aerosol comprehensive detection, and compared with traditional single pollutant detection and ozone concentration and aerosol obtained through satellite remote sensing, the method has the advantages that the detection accuracy is high; the comprehensive application of foundation detection ozone and satellite remote sensing aerosol detection can better reflect the pollution condition of the region, reduce the interference between ozone and aerosol detection, and make the monitoring region more flexible.

The invention discloses a quantitative evaluation method and device for ozone pollution, computer equipment and a storage medium, and the method comprises the steps: carrying out the quantitative evaluation of ozone pollution based on the change data of ozone concentration before and after the emission reduction of an ozone precursor in a target region, and obtaining a quantitative evaluation result; according to the quantitative evaluation method provided by the embodiment of the invention, the preset ozone pollution analysis system which is automatically integrated by the optimized preset air quality model is introduced; since the preset optimization mode can be used for improving the data processing performance of the preset air quality model, compared with an existing simulation process, based on the same test environment and case, simulation is performed through the preset ozone pollution analysis, so that an ozone pollution quantitative evaluation result can be accurately obtained, the simulation process can be effectively accelerated, and the simulation efficiency is improved. And the time required by simulation is greatly shortened.

The invention discloses biological filtering equipment. The biological filtering equipment comprises four filtering towers and an air box, wherein each filtering tower comprises four filtering layers;each filtering layer comprises a filler carrying layer, a filler and an inoculating material; the air is sucked by an induced air fan via an air intake channel, passes through all filtering towers, and is exhausted out via an air exhaust channel. The biological filtering equipment has the advantages that the ozone pollution due to failure of single filtering layer can be reduced; by arranging themultiple filtering layers, the air drag can be favorably balanced, the contact between microorganisms and harmful gases is enhanced, and the deodorizing effect is thorough; the biological filtering equipment can be applied to the absorption of aerobic fermenting ozone.

The method consists in, first, circulating the air in which the content of a specific pollutant is to be measured through or over materials that reversibly absorb compounds in the air that interfere with the measurement of pollution. These absorbent materials are employed in the form of self-fixing patches or membranes that can be disposed of after use and are placed between the air to be measured and the measurement means. These patches or membranes can be used for all types of measurement means, such as electronic sensors or colorimetric indicators (in which case the membrane will advantageously be transparent). This actual pre-treatment of the air will thus allow reliable, reproducible measurement irrespective of the environmental conditions (humidity, presence of other pollutants, etc.). For humidity, for example, the membrane will consist of silica gel or cotton wool. A first application is an individualized warning device that can be carried on the reverse of a jacket or on the wrist, for alerting asthmatics to the presence of a peak in ozone pollution or sulphur and nitrogen oxide pollution.