Nuclear, biological, and chemical equipment in firefighting and rescue operations

currentlyThe nuclear, biological, and chemical threats mainly come from:

nNuclear: Leakage of radioactive materials (such as nuclear power plant accidents, loss of medical or industrial radioactive sources), dirty bomb attacks, etc.

nLife: Leakage of pathogenic microorganisms (such as laboratory accidents, bioterrorism attacks).

nChemical: Leakage of hazardous chemicals (such as explosions in chemical factories, leakage of hazardous chemical transport vehicles caused by traffic accidents, chemical terrorist attacks).

In the face of these threats, the core task of firefighting and rescue is to quickly identify hazards, protect rescue personnel and the public, control the spread of pollution, and eliminate harmful consequences. Nuclear, biological, and chemical detection, decontamination, and disposal equipment are key to achieving these goals.

1、 Application of Nuclear, Biological and Chemical Detection Equipment

Core role:“eye”and“sentinel”Used for discovering, identifying, quantifying, and monitoring nuclear, chemical, and biological hazards, providing the most critical intelligence support for command decision-making.

Main equipment and application scenarios:

Nuclear radiation detection equipment:

nPersonal dose alarm: Each firefighter entering the contaminated area should wear it with them, displaying the accumulated dose and dose rate in real time. When the threshold is exceeded, it will automatically sound an alarm to ensure personal safety.

nαβSurface contamination meter: used to detect whether rescue personnel, equipment, vehicles, and the ground are contaminated with radioactive substances.

nPortable energy spectrometer/Nuclide identifier: It can not only measure radiation intensity, but also identify which radioactive nuclide (such as cesium) it is-137Cobalt-60）This is crucial for determining the source and degree of harm of accidents.

nRadiation monitoring vehicle: equipped with large detection equipment, capable of conducting large-scale, mobile rapid inspections and data transmission, and serving as the on-site command center“mobile monitoring station”.

Chemical testing equipment:

nPortable multi gas detector: the most commonly used equipment that can simultaneously detect oxygen, combustible gas, carbon monoxide, hydrogen sulfide, volatile organic compounds, etc. It is a standard configuration for entering enclosed spaces or chemical accident sites.

nInvestigation and Control/Detection tube: For specific toxic chemicals (such as chlorine gas, ammonia gas, phosgene, etc.), the reagent inside the tube is discolored by pumping, and a qualitative or semi quantitative rapid judgment is made on the presence of a certain toxic substance.

nAdvanced instruments such as Fourier transform infrared spectrometer and Raman spectrometer can identify unknown chemical substances from a distance without touching the sample, greatly ensuring the safety of firefighters. They are used to determine unknown leaks and suspected chemical terrorist attack sites.

nChemical agent detector: specifically designed for military chemical agents such as sarinVXDesigned with high sensitivity and rapid response, it is used to respond to potential chemical terrorist attacks.

Biological detection equipment:

nOn site rapid detection kit: similar to nucleic acid detection or antigen detection, it can preliminarily screen samples of air, water or object surface in a short time (tens of minutes) to determine whether there are specific types of biological warfare agents (such as anthrax, pestis, etc.).

nBioaerosol sampler: collects suspended particulate matter in the air and sends it to a specialized laboratory for precise analysis. On site, it mainly plays a role“warning”and“sampling”effect.

2、 Application of decontamination equipment

Core role:“firewall”and“purifier”Preventing the spread of pollution and ensuring the safe evacuation and return of personnel are key links in controlling the scale of accidents.

Main equipment and application scenarios:

Personnel decontamination equipment:

nPublic decontamination tents/System: Set up a safe area upwind from the boundary of the contaminated area for preliminary decontamination of the evacuated contaminated population. Usually includes a changing area, a washing area, and a clean clothing area.

nFirefighter specific decontamination equipment:

nPortable disinfection stretcher: It can be used to place severely injured individuals on it for full body spray disinfection without causing secondary injury.

nPersonal simple cleaning bag/Kit: Includes absorbent wipes, disinfectant, etc. for firefighters to perform emergency self disinfection during task intervals.

nLarge scale spray disinfection system: composed of heating boiler, water pump, spray rack, wastewater recovery tank, etc., it can provide complete disinfection of hot water and liquid medicine for multiple firefighters and their equipment at the same time. follow“From dirt to cleanliness”The one-way process.

Equipment and vehicle decontamination equipment:

nLarge equipment cleaning device: usually integrated on special vehicles, it is equipped with high-pressure hot water flushing, foam or disinfectant spraying system for external and internal cleaning of large equipment such as fire engines, emergency vehicles, ambulances, etc.

nPortable high-pressure cleaning machine: Use specialized cleaning agents to finely clean small equipment such as demolition tools and detection instruments.

Environmental decontamination equipment:

nMulti functional disinfection sprinkler truck: converted from urban sprinkler trucks, equipped with disinfectant storage and spraying systems, used for disinfecting large areas such as roads and squares.

nAerosol spray/Smoke machine: It can atomize disinfectant and thoroughly disinfect indoor air and object surfaces.

III Application of disposal equipment

Core role:“scalpel”and“Terminator”Directly block, transfer, degrade, or neutralize hazardous sources to fundamentally solve the problem.

Main equipment and application scenarios:

Leak sealing equipment:

nwooden/Rubber sealing wedge, sealing airbag, bundled sealing tape: used to seal small holes and cracks on storage tanks and pipelines.

nHigh pressure injection type sealing glue gun: Establish a sealed chamber around the leakage point, inject specialized sealing glue into the chamber, and achieve pressure sealing.

nMagnetic pressure sealing and plugging plug: used to deal with leaks on irregular surfaces.

Transmission equipment:

nExplosion proof pump, submersible pump: Transfer leaked liquid chemicals from a low location to a safe storage tank or tanker.

nAttraction pad, adsorption pad, adsorption bucket: used to contain and absorb small-scale liquid leaks.

nNegative pressure sealing tank/Bucket: Safely collect and transport contaminated solid waste, soil, or recovered spills.

Degradation and neutralization equipment:

nChemical neutralizer: such as neutralizing acidic leaks with alkali, neutralizing alkaline leaks with acid. Accurate selection and use are required based on the investigation results.

nOxidative degradation agents: such as using peroxides, potassium permanganate, etc. to oxidize and decompose certain organic toxins.

nBiodegradant: using specific microorganisms to decompose pollutants, often used for post environmental remediation.