amec nuclear slovakia - international atomic energy … · 2 amec nuclear slovakia applied research...

AMEC Nuclear Slovakia

Introduction

Member of AMEC Group

IAEA´s Inaugural Meeting on LABONET

17.- 19.th of January 2011, Wienna, Austria

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Applied research and development of

decontamination and radioactive waste treatment

Design and manufacture of decontamination

equipment

Design and manufacture of equipment for

radioactive wastes treatment and management

Direct implementation of the decontamination and

cleaning tasks

Surface treatment, electrochemical polishing

Dismantling of equipment complexes

Monitoring and visualization of radiation fields

Measurement of material contaminations prior to its

release into the environment

Proven Quality Procedures & Products Developed and

delivered under ISO 9001 and ISO 14 001

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Human Resources

ANS is specialist company providing complete solutions

in the fields of decontamination, decommissioning and

radioactive waste management. All of our experts have

extensive knowledge and long-term experience in the

nuclear industry. This experience allows them to create

sophisticated solutions and expertise vital to customer

satisfaction.

Our subsidiary in the Czech Republic – AMEC Nuclear

Czech Republic provides full decontamination service

and radioactive waste handling for the NPP in Temelin.


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Qualification of Staff in the AMEC Nuclear Slovakia

AMEC Capabilities AMEC Nuclear Slovakia

AMEC Nuclear Czech Republic

AMEC (Brno)

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Reactor Services

Requirements for the preparation and realization:

Safe and effective pumping of the radioactive sludge from the bottom of the

Reactor Pressure Vessel in two separate phases

Safe and effective pumping of the radioactive sludge and mechanical

debris from the bottom of the Dumpers of Emergency Cassettes in a single

phase

Repetitive drainage of the coolant from the RPV up to 7.5 m below the

main dividing plane

Circulation cleaning of the liquid medium in the RPV

Special inspection in the Reactor Pressure Vessel and

Reactor Internals

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Reactor Services


Operational scheme

Cleaning of the Emergency

Cassette Dumper bottom

Pumping of the sludge

and mechanical debris

from the RPV bottom

Examples of the Sludge

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Decontamination services

Extending equipment life

Waste (RAW) Minimization

Personnel protection

Services performed by own equipment and personnel

Supplies, installation and services of decontamination equipment

Development and supplies of equipment for regeneration of decontamination

solutions

Development and testing of new progressive decontamination procedures

Development and supplies of new procedures and safety solutions for

equipment and contamination protection

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Decontamination Units / Equipment

Chemical, electrochemical, ultrasonic

decontamination units / baths – decontamination

of contaminated equipment for reuse in NPPs;

Electrochemical and ultrasonic decontamination

units for free release;

Mobile decontamination units – circuit

decontamination of pipelines and/or parts of

NPPs primary circuit;

Rising bath – decontamination of low level

contaminated equipment by pressure water for

reuse at the NPPs;

Decontamination equipment – electrochemical

polishing and decontamination

Units for regeneration of used decontamination

and/or rising solutions – minimizing the

secondary RAW

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Electrochemical and ultrasound decontamination

of metal fragments for free release

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Equipment with continuous electrolyte

feeding and collecting

o reservoir volume: 20 dm3

o rectifier: 110 A, 35 V

o polarity: anodic

Equipment for electrochemical polishing

and decontamination

o rectifier: 400 A, 40 V

o polarity: anodic

Decontamination / Electrochemical polishing and decontamination

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Decontamination Units

DEZA OD 2 – Decontamination unit

for circuit decontamination of

selected parts of the pipeline or

parts used in VVER 440 type NPP

DEZA ECHV - Decontamination

devices for ultra-sonic and chemical

cleaning of contaminated parts of

Main Circulation Pump and Main

Closing Valve

DEZA KO – Decontamination unit

for Pressurizer (KO) of VVER type

NPP

DEZA BVP – Decontamination unit

for Reactor Refueling Pit

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Decontamination Units

DEZA KO – Decontamination unit

for Pressurizer at VVER type NPP

Equipment for the Decontamination of the Pressurizer

of the VVER 1000 Type

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Free Release Measurements

AMEC Nuclear Slovakia have measured and

released radwaste for SE-ENEL and ČEZ and

performed operations at EBO, EMO and Temelín

NPPs. Processed solid waste included concrete

rubble, bricks, refractory bricks, porous concrete

blocks, coal, filters, textiles, plastics, resins and steel

etc.

Company possess two measurement units RADOS

and SMEGA. SMEGA measurement unit was

designed and manufactured by AMEC Nuclear

Slovakia and approved by Slovak and Czech

regulatory bodies.


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Equipment development / SMEGA - Spectroscopy Measurement of

Gamma Activity

Spectroscopic Measurement of

Gamma Activity

Analysis of waste for release into

environment

Uses ORTEC’s

gammaspectrometry system with

HPGe detector

Uses ActivityFind algorithm to

determine nuclide sources

Detects sources < 1kBq

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Free Release Measurements

Legislative and administrative approval

Sampling and characterization of low-level

wastes

Decontamination for free release into the

environment

Measurement of materials for free release

into the environment

Releasing of materials with confirmed

protocols from the controlled area

of the NPP in sealed drums or containers

into controlled landfill


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The AMEC Nuclear Slovakia company is involved as a contractor in the area of

characterization of liquid radioactive wastes namely sludge and resins and their

treatment in V-1, V-2 NPP in Jaslovske Bohunice, NPP Mochovce (Slovak

Republic), NPP Dukovany and NPP Temelin (Czech Republic). These are NPPs

with pressurized water reactors (PWR).

The inorganic SIAL® matrix for immobilisation and solidification of various

radioactive waste streams as sludge, ion exchange resins, ashes, deposits has

been developed by AMEC Nuclear Slovakia Company

Radioactive sludge / resins treatment

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The SIAL matrix is a product of polycondensation of inorganic compounds. During

solidification process inorganic solids (mainly compounds of Si and Al) are dosed

into the drum during stirring at room temperature.

The solid products have low leachability of radionuclides and very high

compressive strength

In the year 2003, Slovak Nuclear Regulatory Authority (ÚJD SR) granted the

permission for the NPP A-1 to use the SIAL matrix for safe disposal of radioactive

waste. In the year 2007

Czech Nuclear Authority (SUJB) granted the permission for NPP Temelin to use

the SIAL® matrix for solidification of mixtures of radioactive sludge and resins and

safe disposal of solidified RAW.

The main goal of this kind of solidification is very fast and simple transformation of

radioactive wastes into much more safer solid form which is suitable for handling,

transport and also for storage.


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Removal, separation and

solidification of the sludge

from the Long-term storage pool by

SUZA equipment

Treatment of the sludge from

the Long-term storage pool

bottom

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Pretreatment and solidification of mixtures of sludge and resin into

SIAL® matrix at NPP Temelin


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Look on the RAW

sludge – resins

mixture

Final product Mobile solidification unit FIZA S200

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Chemical laboratories/research and development


Waste treatment

Development of progressive decontamination technologies

Regeneration

Electropolishing

Development of technologies for surface treatment

Research and tests in the area of the corrosion

Study of solubility, Analytical support

Chemical laboratories instrumentation:

Electrochemical methods

Gamaspectrometry

Dose measurement (using remote controlled vehicles)

SEM, EDX (Scanning Electron Microscopy/ EDX

(morphology, local chemical composition)

LIBS (Laser Induced Breakdown Spectroscopy – general

chemical composition)

Radionuclides and chemical elements determination

Research, development and testing of new procedures

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Waste management

Development of cutting edge waste

treatment technologies

Various studies (feasibility study, method

study, etc.)

Development of new progressive

equipment and technologies

Analysis and development of

decommissioning database and detail

design for its modifications and new

applications

Decommissioning of Nuclear power plants

Development activities

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Thank you for your attention

www.amec.sk Tel: +421/(0)33/55 92 431

Fax: +421/(0)33/53 42 951

AMEC Nuclear Slovakia s.r.o.

Jaslovské Bohunice

919 31

AMEC Nuclear Slovakia s.r.o.

Harmony of technology & high quality

through continuous improvement of

processes

amec nuclear slovakia - international atomic energy … · 2 amec nuclear slovakia applied research...

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