FEVDI products are used during outage activities of nuclear power plants. Most of the FEVDI used in nuclear power plants are PMUC certified by EDF, so do not contain halogen elements.

NUCLEAR POOL DECONTAMINATION

Wall and floor of nuclear reactor pool are decontaminated during the outage in order to reduce the dose rate taken by the workers during maintenance activities such as inspections, repairs.

Mousse ALCATUM

ALCATUM foam nuclear decontamination of reactor pool

FEVDI provides various solutions to decontamination the nuclear reactor pool with foam:

Foam generator are used to spray the foam: - Foam generator for small surfaces: LASER 12 MOUSSE (Nuclear) EPDM - Foam gun stainless steel Foam Gun Stainless steel 24Lor Foam Gun Stainless steel 50L - CAMUNI V5: device dedicated for generating foam for the nuclear pool with a double spray gun for both foam spray and water rinsing.

 

CAMUNI V5

Foam generator CAMUNI V5

The CAMUNI V5 allows to decontaminate large surface with the various FEVDI foam.

- Multipool pole is a modular pole 2.5 to 25m for the decontamination of nuclear reactor pools wall and floor at high level, without going down into the reactor pool.

Multipool pole for nuclear reactor pool decontamination

FEVDI has also developed a partnership to connect the CAMUNI V5 and the NED robot from ORYS allowing to decontaminate the reactor pool without human presence inside of the reactor pool, this technology reduces heavily the dose rate taken by the workers.
BORE DISSOLUTION

The water circulating in the circuits of nuclear power plants contains boron which absorbs neutrons and therefore controls the nuclear reaction. However, an excess of boron or an increase in the concentration can cause the crystallization of boric acid, this can even clog the pipes. FEVDIRAD AL Liquide, FEVDIRAD AL FOAM or the FEVDIRAD AL GEL have the property of being able to dissolve crystallized boron deposits. The FEVDIRAD AL range is an effective nuclear decontaminant with very powerful degreasing power, especially for stainless and ferritic steels. This video demonstrates how quickly boron dissolves by FEVDIRAD AL Liquide compared to the hot demineralized water at 50°C.

Dissolution of the bore by the FEVDIRAD AL Liquide

MANUAL DECONTAMINATION WITH TOWELS

FEVDI has developed a range of towels impregnated with ALCATUM allowing manual decontamination. Impregnated towels can be used to decontaminate walls, floors, equipment, tools, ventilated clothing on all types of surfaces.

FEVDI has a range of microfiber, this allows the use of towels in an environment in the presence of nitric acid:

Demonstration of the ALCATUM impregnated towel for floor and of the ALCATUM impregnated towel 

NUCLEAR LAUNDRY DECONTAMINATION

FEVDI offers a range for the nuclear decontamination of laundry as well as ventilated suits. FEVDI's products cover all the needs related to the nuclear decontamination of laundry:

  • FEVDIREM MD: Wetting agent, detergent and anti-redeposition used for prewashing textiles.
  • FEVDIREM DT: Acid decontaminant and deoxidizer for all textiles
  • FEVDIREM AST: Fabric softener that leaves a pleasant smell on the laundry.
  • NUCLEON 3 and NUTRIUM: Liquid decontaminating detergent used for washing and decontaminating all textiles and shoes.

FEVDI supplies also the FEVDIREM DT2 which is a descaling, decalcifying, descaling calcium, this making it possible to eliminate the scale in the washing machines.  

PAINT STRIPPER

The nuclear industry uses high performance paints to guarantee the characteristics of buildings and equipment in nuclear power plants. However, during maintenance work it is necessary to completely or locally remove the paint. FEVDI therefore offers a stripper suitable for most paints used in nuclear power plants. BIODECAP 02 GEL and BIODECAP 03 GEL ont PMUC certified (no halogen).

The BIODECAP 02 GEL is used to remove various type of paint.

Ask for sample to determine the best stripper for your paint.

FILLING OF SIPHONS Siphon RETENSHIP

The various rooms located in nuclear power plants have many siphons which are used to evacuate effluents in the event of leaks, for example. However, siphons are also conducive to the passage of air, gas and contaminated particles. In the event of a fire in a closed room, the air coming from the siphon can continue to feed a fire, in order to prevent this type of scenario, it is imperative to fill the siphon with a product that blocks the air while being miscible with water. Water can be used to fill the siphons, but due to the dry environment of nuclear power plants siphons must be filled very frequently. RETENSIPH which replaces water thanks to its low evaporation rate for filling floor siphons. In the event of a fire, it thus prevents the spread of fire and gases. RETENSIPH 2 has in addition the characteristic of reflecting the light of UV lamps, which makes it easy to detect the level of products in the siphons.

FIXATING PRODUCTS

It is sometimes necessary to fix nuclear contamination on a surface instead of decontaminating it or for subsequent decontamination. FEVDI offers fixing products to fix radioactive particles on the surface in order to avoid any secondary contamination, but also to protect clean surfaces against contamination. FIXATEUR LP6 (PMUC) allows to form a white protective film, this film is temporary and can be removed in contact with the FEVDIREM DNB. Le FIXAPRO P03 (PMUC) is a peelable film to protect a clean surface from contamination, so the film can be effortlessly removed and capture contamination. FIXAPRO P02 is used for labile decontamination without generating effluent.

The FIXAPRO P03 can protect a surface against the contamination. 

Regarding the ventilated clothing used during maintenance work, dust and radioactive particles may be on the clothing, there is thus a risk of dispersions of the contamination during undressing. In order to remedy this risk, FEVDI supplies the AEROFIX BLEU which is offered in a liquid version.AEROFIX LIQUID BLUE or in sprayAEROFIX BLUE. A colorless version can also be supplied such asAEROFIX INCOLORE LIQUIDE and theAEROFIX INCOLORE.

TheAEROFIX BLUE allows nuclear contamination to be fixed on clothing and textile materials.

STAINLESS STEEL PASSIVATION

FEVDI offers a PMUC range of products for passivation but also for labile decontamination of stainless steels. FEVDIRAD AC2 LIQUID, FEVDIRAD AC2 FOAM and FEVDIRAD AC2 GEL are highly acidic products to remove loose contamination and allow passivation of stainless steel surfaces.

REMOVER

During maintenance work on nuclear power plants, the equipment to be repaired and changed has glue or other resin. BIOSOLV N7 GEL (PMUC) is a remover of steam generators tape sealing but also resins and inks. It also allows the degreasing of parts such as studs and nuts. BIOSOLV N6 Liquide (PMUC) is a fast drying finishing product for dissolving glues. FEVDISOLV N5 (PMUC) is a solvent for degreasing mechanical parts with a rapid evaporation rate.

PLASTIC DECONTAMINATION

The DECONTAPLAST is a product used to remove fixed contamination on plastics, composite materials, polyethylene, polypropylene, nylon, PVC and plexiglass.  

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