33 results about "Contamination zone" patented technology

A mobile containerized autopsy facility for use in distant contamination zones, comprising at least one enclosure which includes at least one seamless and sealable compartment, which compartment meets biohazard safety level 3 and 4 requirements. The facility consists of enclosures that are most commonly a conversion of at least one standard 40×8×9.5 foot refrigerated cargo container that may be easily transported by trailers or by air to remote sites and be operational without the dependence on local infrastructure.

The invention relates to a soil leakage liquid and surface runoff interception and purification system and a soil leakage liquid and surface runoff interception and purification method suitable for heavy metal pollution areas in the south. The system and the method are mainly used for controlling pollution dispersion in the heavy metal pollution areas and comprise the functions of intercepting water and soil loss in the pollution areas, purifying soil leakage liquid and runoff and repairing and enhancing degraded wetland. The system and the method are low in building, operation, maintenance and management costs, avoid energy consumption, have good interception and purification effects, can reduce the water and soil loss quantity in the pollution areas by over 90 percent, can treat water discharged from the system so as to enable the water quality to reach the national Environmental Quality Standard for Surface Water (GB3838-2002) and the III standard of the Quality Standard for Ground Water (GB / T14848-93), have a wide technological adaptive range, and can be popularized and applied in different types of heavy metal pollution areas in the south.

A mobile monitoring device for monitoring controlled contamination areas may include a motorized mobile structure, a sampling unit, and a central management and control unit. The motorized mobile structure is configured to move within an area to be monitored. The sampling unit is positioned on said mobile structure, and configured to perform sampling operations of air and / or surfaces of said area and obtain sampling data. The central management and control unit is operatively connected to the mobile structure and to said sampling unit. The mobile structure may be controlled by the central unit to reach predefined points of the area to be monitored. The sampling unit may be selectively activated and / or deactivated by said central unit in correspondence with said predefined starting points of said sampling operations.

The invention relates to the technical field of risk management and control of contaminated sites, and discloses a biological barrier system and method for blocking a migration path of benzene seriesin a site to the atmosphere. The system covers a polluted area and sequentially comprises an aeration layer and a barrier layer from bottom to top, and the barrier layer is clean soil with biologicalactivity; the aeration layer comprises a filter material layer laid above the polluted area and an aeration pipe buried in the filter material layer; the soil gas monitoring system comprises a layeredmonitoring gas well and a soil gas collecting device; the soil gas collection device comprises a gas guide device buried in a layered monitoring gas well, wherein the air guide devices are communicated with an air inlet of the air extractor on the ground through guide pipes, the air guide devices are arranged at intervals in the depth direction of the layered monitoring gas well and buried in theair guide material layer, isolation layers are laid on the upper side and the lower side of the air guide material layer respectively, and the space between the isolation layers of the vertically adjacent air guide devices is filled with a connecting layer. The system is low in cost, capable of achieving in-situ blocking, free of secondary pollution, economical, environmentally friendly and goodin blocking effect.

Processes for removing hydrocarbon contaminants from soil and groundwater via enhanced biological denitrification. A contamination zone of groundwater and / or soil is identified to define a volume or zone of contaminants to be treated. A source of nitrate is applied to the contaminant zone to serve as an electronic acceptor for enhanced bioremediation of the petroleum hydrocarbons. A further carbon source, secondary to the primary contaminant hydrocarbons, is added to form a barrier about the nitrate treatment zone to stimulate degradation of any nitrate migrating from the treatment zone. A further carbon source is also added to stimulate the degradation of any residual nitrate once the primary carbon source of the contaminant hydrocarbons have been destroyed.

The invention discloses a refined site investigation method based on remediation efficiency. The refined site investigation method comprises the steps of performing site data arrangement and analysis,checking a heavily polluted region, correcting a range of a moderately polluted region, judging whether a lightly polluted region has pollution or not, and making a whole-field pollution partition grading diagram. For a specific soil pollution remediation site, a discrete point distribution sampling method, a density increased point distribution sampling method and an incremental point distribution sampling method are used in a targeted mode, the ranges of heavily, moderately and lightly polluted regions are precisely verified respectively, and finally a full-field-region pollution zoning andgrading graph is constructed in combination with sampling test analysis results. According to the refined site investigation method, precise identification of soil pollution of the contaminated remediation site is achieved, different site investigation methods are adopted for regions with different pollution degrees, the polluted region identification precision is improved, and the site remediation efficiency is improved.

The invention provides a high-contamination exhaust multi-disinfecting-killing system and method. The system comprises a contaminated area negative-pressure metal vent pipe, any position on the contaminated area negative-pressure metal vent pipe communicates to the inlet end of a high-resistance tape heat insulating and insulating layer vent pipeline, the outlet end of the high-resistance tape heat insulating and insulating layer vent pipeline is connected to the inlet end of an outdoor negative-pressure metal vent pipe through an electric anti-backflow valve, and the outlet end of the outdoornegative-pressure metal vent pipe is connected to an exhaust port of an efficient variable-frequency fan. Multiple virus disinfecting and killing devices are sequentially arranged at the rear end ofthe efficient variable-frequency fan. Firstly, air probably containing viruses in high-contamination building spaces is disinfected and killed at high temperature through an electric heating pipeline,then the air disinfected and killed at high temperature is exhausted to the outdoor multi-virus disinfecting and killing devices through a negative-pressure pipeline, the introduced air is completelydisinfected and killed diversely, and therefore the viruses in the air of the high-contamination building spaces can be completely removed.

The invention relates a sorbent and method of using the sorbent, more specifically to an inert sorbent and a method for treating an environmentally contaminated zone with the inert sorbent.

A radiation probe system and method incorporating adaptive gamma radiation background subtraction for enhanced radiation detection capability is disclosed. The system and method are generally applicable to radiation “frisking” applications in which the contamination area may have high gamma radiation background levels that normally would result in loss of contamination radiation detection accuracy. Readings from a background radiation detector (BRD) are subtracted from a contamination radiation detector (CRD) to determine a count rate solely associated with contamination. A background subtraction factor (BSF) is used to scale the BRD subtraction and is automatically adjusted based on environmental conditions. A smoothing algorithm is used to increase / decrease the BRD and / or CRD acquisition times to account for signal variations in BRD / CRD measurement readings. The system and method provide for lower limit of detection (LLD) radiation levels that are below that of conventional radiation detectors.

The invention relates to a module assembly type isolation area access passage. The module assembly type isolation area access passage is composed of partition plate modules in a modular assembly mode; the module assembly type isolation area access passage internally comprises a personnel access passage, a material access passage, a dirt access passage and an isolation pollution area; one end of the personnel access passage is used for being connected with a cleaning area, and the other end of the personnel access passage is used for being connected with the isolation pollution area; one end of the material access passage is used for being connected with the cleaning area, and the other end of the material access passage is used for being connected with the isolation pollution area; one end of the dirt access passage is used for being connected with the cleaning area, and the other end of the dirt access passage is used for being connected with the isolation pollution area; the isolation pollution area is used for being connected with a pollution area; and the personnel access passage comprises an area used for personnel to wear and take off positive pressure protective clothing. The module assembly type isolation area access passage can be adapted to medical places for use, can be quickly assembled and disassembled, is convenient to move, can be repeatedly used, and is high in safety coefficient and low in construction cost.

The invention relates to an in-situ remediation method for underground water and soil of a polluted site. The method comprises the following steps: injecting first composite slurry into a water layer or a soil layer located at the pollution plume boundary, and enabling the pollution plume boundary to be covered with the first composite slurry; and injecting second composite slurry into a water-containing layer or a soil layer of the pollution source area, and enabling the second composite slurry and the first composite slurry to cover the polluted site, wherein the first composite slurry and the second composite slurry both contain montmorillonite, zero-valent iron and a trace electron donor composition, and the content of the montmorillonite in the first composite slurry is greater than that of the second composite slurry. According to the method, a flexible in-situ barrier reaction zone is formed at the boundary of the pollution plume boundary , the pollution area is blocked while remediation is carried out, and secondary pollution caused by further diffusion of the pollution plume is prevented; meanwhile, the second composite slurry is injected into the pollution source area, the underground environment is improved, salt pollution in soil and underground water is rapidly eliminated, and efficient remediation in the original pollution source area is achieved.

The invention discloses a movable compartment for a medical experiment. The movable compartment comprises a vehicle body and a compartment body arranged on the upper side of the vehicle body, wherein the compartment body comprise a sterilizing room and a laboratory, an arched door is hinged to one side of the sterilizing room, a hand washing sink and a sterilizing mechanism are arranged in the sterilizing room, the sterilizing mechanism comprises a spraying head arranged in the middle of the top surface of the sterilizing room, the sterilizing room is communicated with the laboratory, a first electric lifting door is arranged at the communicated position of the two parts, the inside of the laboratory is sequentially divided into a contaminated zone, a semi-contaminated zone and a clean zone by a first vertical partition plate and a second vertical partition plate from right to left, the sterilizing room is communicated with the contaminated zone, a specimen box placement cabinet is formed in the contaminated zone, a biosafety cabinet, a water tank, a culture box and a carbon dioxide concentrations detecting alarm apparatus are arranged in the semi-contaminated zone, and skylights are hinged to the compartment at the top of the contaminated zone and at the top of the semi-contaminated zone. The movable compartment facilitates field experiment implementation by being dragged to a place closer to a sample acquisition point through a traction vehicle, and the accuracy of experiment results is effectively improved.

The invention belongs to the field of underground water and soil pollution treatment, and discloses a quaternary underground water and soil pollution treatment method. The method is mainly technically characterized by comprising the following steps: pollution boundaries are roughly presumed according to a ground pollution source, an underground water runoff direction and pollution time; exploratory holes are drilled, and the pollution boundaries are determined; testing recharge wells are constructed on the edge of a contaminated site, the underground water influence radius R of the recharge wells is tested, the recharge wells are drilled at the positions away from the outer side of the boundary of the contaminated site by the underground water influence radius R, and the interval between every two adjacent recharge wells is smaller than 2R; step4, a horizontal well is constructed, horizontal well spacing is not greater than the groundwater influence radius R, a horizontal well water filter pipe is constructed by clinging to the water-resisting layer surface according to the stratum condition and covers the whole polluted area in length; and a water storage tank is dug on the ground surface in the determined polluted area, and polluted water in the polluted area is pumped out through the horizontal well and treated while clean water is recharged into the recharge wells. The treatment is more thorough, and the damage of surrounding buildings caused by underground water level decline is avoided.

The present disclosure discloses a mobile robot in which at least one suspected wet contaminated region where a dust concentration is relatively low is specified in a cleaning area, and the suspected wet contaminated region is specified as a wet contaminated region based on a floor image of the suspected wet contaminated region.

The invention provides a barrier closure and a method for barrier closure of a polluted area. The barrier closure comprises: an anti-seepage plate, the anti-seepage plate includes a first plate and a second plate, and the first plate is horizontally The two ends in the direction are provided with a first connection structure, and the two ends of the second plate in the horizontal direction are provided with a second connection structure; the sleeve plate, the sleeve plate is hollow, and is sleeved on the anti-seepage plate The outer side is used to drive the anti-seepage plate downwards to insert into the isolation closed area, and the cover plate includes a first cover plate and a second cover plate respectively sleeved on the outer sides of the first plate material and the second plate material. According to the present invention, the construction cost is low, the barrier and sealing effect is good, the operation is convenient and simple, and the corrosion resistance is strong and the service life is long, which can well achieve the effect of blocking the outward diffusion of pollutants and the risk control of polluted sites, and effectively creates The conditions and risk management and control environment for emergency restoration of contaminated sites in the later period are clarified.

The invention provides a fixed-depth precise thermal remediation method and device. According to the invention, a multifunctional well and an extraction well are arranged in a contaminated area; an electric heating device is arranged in an area, corresponding to a contaminated stratum, in the multifunctional well; chemical injection pipes are arranged in the area, corresponding to a clean stratum,in the multifunctional well; the chemical injection pipes are connected with a direct-current cable; oxidizing agents are injected into the underground through the chemical injection pipes, and thendirect current is turned on, so a direct-current electric field can be generated between the adjacent chemical injection pipes, and a chemical oxidation reaction zone is constructed and formed on thelower side of the cleaning area; and the electric heating device is connected with alternating current to conduct depth-fixed accurate heating on a contaminated area, a part of pollutants are collected by the extraction well after being heated and volatilized, and the other part of the pollutants move upwards to enter a chemical oxidation reaction area to be oxidized and degraded. According to themethod, only the contaminated area is accurately heated according to the stratum distribution condition of pollutants; the method and the device are particularly suitable for areas with clean shallowlayers and deep contaminated layers, the volume of heated soil can be greatly reduced, and the energy consumption of heating and remediation cost are reduced.

The invention relates to a PE glove support suitable for use in polluted areas, comprising a first horizontal plate, a second horizontal plate and two pillars connecting the first horizontal plate and the second horizontal plate, and the two sides of the lower half of the pillars are respectively opened There are notches penetrating each other, and the notch of the pillar is provided with a release piece, a first spring, a second spring, a slide bar and more than two hooks superimposed on each other up and down, and the release piece is vertically arranged in the cavity of the pillar, The slide bar passes through the release member and is vertically arranged in the cavity of the pillar, the hook is laid flat on the upper plane of the horizontal part of the slide bar and passes through the release member, and the vertical part of the lower part of the slide bar is sleeved with a first Spring, the end of the vertical part of the release member is covered with a second spring; the upper part of the first horizontal plate is equipped with a battery pack, the bottom is equipped with a fan, and the bottom of the second horizontal plate is connected with a hand-supported finger column tube. The invention can make the PE gloves easy to wear, save time and effort, and has an air-drying function at the same time.

A lighting array including one or more antimicrobial light segments configured to emit light sufficient to inactivate one or more microorganisms at a target surface may be installed within identified contamination zones of food or beverage preparation, processing, storing or packaging equipment or machinery. In an ice machine, for example, an array controller is configured for communication with an ice machine controller to receive ice machine status information signals. The status information signals are usable by the array controller to determine cycle, state, and / or usage information associated with the ice machine. The array controller may individually control activation of the one or more antimicrobial light segments based on the status information signals received from the machine controller to achieve inactivation of one or more microorganisms on target surfaces within the machine.

A fluid injection and removal system to inject or remove fluids from a landfill or contaminated area. The system allows for treatment of waste in the landfill or the contaminated area. The fluid injection and removal system includes a permeable layer and at least one perforated pipe. The permeable layer enables essentially uniform distribution of the fluid into the underlying waste or contaminated area. The fluid injection and removal system can be combined with a leachate collection system to create a leachate recirculation system for use in a landfill. The leachate collection system includes at least one perforated collection pipe embedded in a drainage layer. Sensors can be provided in the permeable layer to enable the change in the physical characteristics of the waste adjacent the permeable layer to be monitored.

The invention discloses an anti-fouling flashover insulating coating added with micro-nano composite particles and a preparation process thereof. The weight percentage of each raw material is such as: fluorosilicone resin 36%-52%; micron-sized (10μm-200μm) composite particles: mainly fumed white carbon black 3%-5% CaCO3 0.5%-1.5%, CeO2 0.3%-1% and 0.5%-1.5% cerium fluoride composite particles and 2%-6% composite cross-linking agent for modification of micron-sized particles, 3%-8% composite reinforcing agent, nano-scale (25nm-75nm) composite particles: mainly There are nano-SiO2 0.3%-1%, nano-TiO2 2%-4%, nano-lanthanum oxide 0.2%-0.5%, and composite cross-linking agent for micron particle modification 2%-4%, surfactant 0.5% ‑1.5%, hexamethyldisilazane 3.5%‑7.5%, fluorosilicone resin defoamer 0.2%‑0.5%, catalyst 0.3%‑0.6%, composite titanate coupling agent 4%‑11%, composite Flame retardant 2%-6%, the rest is solvent. The preparation process of the anti-pollution flashover insulating coating in heavily polluted areas with the addition of micro-nano composite particles provided by the present invention adopts the method of segmented preparation and module combination, which can be industrialized and has excellent anti-pollution flashover performance, and can be widely used in heavily polluted areas. Power equipment for UHV transmission lines.

The invention discloses a contaminated object microwave disinfection conveying cabin for biosafety. The contaminated object microwave disinfection conveying cabin comprises a conveying cabin main body, wherein an object storage basket is arranged in the conveying cabin main body in a sliding manner, a plurality of contaminated object sealing bags are contained in the object storage basket, the conveying cabin main body comprises a storage cavity and a sliding cavity which are communicated with each other, the object storage basket is located in the storage cavity, the storage cavity is located in a polluted area, a wall is fixedly arranged on one side of the storage cavity, the sliding cavity penetrates through the wall and is located in the wall, a top cover capable of being opened is installed at the top of the storage cavity, a disinfection assembly is fixedly arranged in the storage cavity, the side, away from the polluted area, of the wall is a clean area, and the side, close to the clean area, of the wall is provided with a sealing cabin door capable of being opened and closed. According to the invention, the contaminated object microwave disinfection conveying cabin is simple in structure and convenient to operate, a worker in a polluted area collects contaminated objects and then disinfects the contaminated object, and a worker in a clean area only needs to take out the contaminated objects for treatment after disinfection is completed, so that pollution of the contaminated objects to the surrounding environment and the worker is reduced, and the contaminated objects are scientifically treated.

The invention relates to a device for monitoring personnel entering and exiting a contaminated area, and belongs to the field of field equipment control modules and methods. The invention discloses adevice for monitoring personnel entering and exiting the contaminated area. The monitoring device comprises an information input device, a storage device, portrait acquisition and proofreading equipment and a lock end control device, wherein the information input device is connected with the storage device, the portrait acquisition and proofreading device is connected with the storage device, andthe control end of the storage device is connected with the lock end control device; the lock end control device is used for controlling a sealing door of a polluted area, and the information input device and the portrait collection and proofreading device are arranged on the outer side of the sealing door of the contaminated area. According to the device for monitoring the personnel entering andexiting the contaminated area and the monitoring method , the personnel entering and exiting state can be monitored, the entering and exiting time table can be adjusted, the personnel state can be tracked conveniently, and pollution source leakage in the contaminated area is reduced.