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Decontamination is the reduction of
hazardous materials - such as
radioactive materials, heavy metals,
chemical agents - up to permissible
concentrations. Often, contaminants
and base materials must be removed
simultaneously.
Base materials could
be impurities, coating systems or
sealing materials. Despite the nuclear
industry, decontamination is required
on industrial or military polluted
areas.
In these areas, the WOMA highpressure
water jet technology is state of-the-art.
WOMA has developed special systems
for the following applications:
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Decontamination of nuclear plants and components. |
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Removal of heavy metal containing coating systems. |
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Removal of fibrous coatings and linings. |
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Cleaning of oily and sooty concrete and masonry surfaces. |
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Cleaning of PCB-contaminated buildings and devices. |
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Washing of chemically contaminated soils and slurries. |
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Removal of explosives and propellants from shells and rocket motors. |
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Demolition of contaminated constructions. |
Why High-Pressure Water Jets? |
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Very wide range of tools and accessories. |
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Small tool dimensions and low weight. |
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Small reaction forces; cleaning tools can be run automatically or remotely controlled. |
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Minimum vibrations and body sound. |
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Avoidance of any gas and slag. |
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Very sensitive and selective removal of coatings, impurities and deposits without damaging the base materials. |
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Applications possible during active production. |
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Avoidance of chemical or abrasive additives; reduced disposal amount. |
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High efficiency even in areas with difficult access. |
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High cleaning quality and high degree of decontamination. |
The Material Range |
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Using high-pressure water jets,
among others, the following materials
can reliably be removed:
contaminated
coatings, paint systems and
plasters, deposits, explosives, fiberreinforced
linings, oils, propellants,
radioactive sources, soot.
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The Technique |
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WOMA offers stationary and mobile
high- and ultra-high pressure water
jetting systems with operating pressures
up to 3,000 bar and water flow
rates up to 900 l/min as well as hot
waterjetting systems with operating
pressures up to 800 bar, consisting of
electric or combustion drive, highpressure
plunger pump, guiding and
control devices, water tools, and highpressure
accessory. They can be run
mechanically or automatically. If
required, vacuuming devices and
water treatment systems are available.
The special high-pressure program for
decontamination applications also
includes the following components:
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High-pressure guns in modular design for surface treatment. |
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Sealed water tools for emissionfree treatment of vertical and horizontal surfaces. |
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Pneumatically driven rotating nozzle carriers for selective material removal. |
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Mobile tube cleaning systems with simultaneous suction. |
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Mobile abrasive water jet cutting systems for on-site demolition. |
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Suction devices for directly sucking off water, solids and contaminants. |
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Modular water treatment devices for contaminated water. |
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Specially designed water tools for treating complex shapes (corners, gussets) |
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Emission-free removal of PCB-contaminated plasters
Decontamination of uranium rods (graphite)
Decontamination of phenol-contaminated soil with WOMA's high-pressure technique
Demolition of a contaminated steel wall tank by abrasive water jets
Chromium oxide removal from heat barriers of a nuclear power plant
Explosive removal from shells
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