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Nuclear industry applications

Unique and innovative processes
Operations outside controlled zones
and in radioactive environments
Online or offline units

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Nuclear industry applications

An organisation designed
to satisfy the requirements
of the nuclear industry

CTP environnement deploys its expertise within nuclear power plants, on fresh or spent fuel processing sites and on nuclear research sites.

The dedicated Nuclear Division is equipped with a robust management system, highly trained teams, nuclear-capable equipment and specific controlled operating procedures. The safety, security and radiation protection benchmarks, as well as the related quality requirements, are incorporated and implemented.

CTP environnement’s culture of innovation and flexibility provides a unique response to the needs of the nuclear industry in its various operational domains: cleaning and maintenance, along with chemicals and the environment.

Internal and external process cleaning, liquid-waste treatment

Mechanical or chemical cleaning operations are carried out on all kinds of heat exchangers or circuits: condensers, tubular heat exchangers of all sizes, plate heat exchangers, boilers, air cooled heat exchangers, etc.

All kinds of damaging residues can be removed: greasy substances, limescale, sludge, corrosion, contaminated deposits, etc. Online analytical monitoring is used to monitor the treatment’s performance and guarantee the harmlessness of the client’s facilities.

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CTP environnement determines and adopts a suitable controlled, mechanical or chemical, wet or dry, online or offline solution for every need, in line with the operation’s particular constraints.

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Operations in radioactive environments

Our skids and mobile units can be made nuclear-capable, in order to meet the needs of working in a controlled zone or radioactive environment. They include cutting-edge technologies and equipment for treating your radioactive waste and contaminated systems, thereby decontaminating your facilities and drastically reducing the quantities of radioactive waste.

CTP environnement’s teams are highly trained and experienced, enabling them to work effectively in safe and secure conditions, whatever the operational constraints.

See an example of our operations

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France

Treatment of radioactive effluent from a nuclear power plant’s reactor building

Online dewatering of sludge generated by the hydrodemolition of concrete blocks

CTP environnement was asked to define and implement a solution for treating effluent generated by the partial demolition of a reactor building’s structure for subsequent renovation. The effluent in question was liquid sludge containing mineral matter (demolished concrete) and metal (descaled steel) at a concentration of 5 to 20 g/L.

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France

Treatment of effluent generated by cleaning the condenser at a nuclear power plant

Removal of metals using a physico-chemical Clearflow® mobile treatment unit

Steam condensers in nuclear power plants are made up of several smaller condensers, which themselves comprise approximately 21,000 metal tubes circulating cooling water. Due to the hardness of water drawn from the natural environment, the cooling tubes are subject to regular and significant scaling and need to be cleaned using ultra-high-pressure water jets (UHP).

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France

Chemical cleaning of an air-cooled heat exchanger for a nuclear plant’s pool water

Descaling a cooling tower by chemical circulation

CTP environnement’s teams were contracted to clean a 12 m (39 ft) long and 4 m (13 ft) high heat exchanger, which equated to approximately 2 tons of residue, primarily made up of calcium carbonate (CaCO3).

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France

Bypass for the production of higher quality water in nuclear power plants

Supply of temporary solution including mobile tanks, physico-chemical treatment and filtration skid

CTP environment implemented a complete bypass of the site's high-quality water production. This production used river water and storm water as a feedstock. Once produced, it supplies the potable and demineralised water chain production of the site. Continuity and uninterrupted service is a necessity for the site.

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France

REUSE of stripping effluents from nuclear power plant

Treatment of stripping effluent from a boiler structure in preparation for a surface coating renovation application

CTP environnement set up a treatment solution that provided the customer with several reuse options:

  • Recycling on an ultra-high pressure stripping unit with the following water quality constraints:
    T° < 30°C, pH 6-8, TSS < 5 ppm, COD < 20 ppm, metals < 5 ppm, conductivity < 1000 µS/cm2
  • Refrigeration of pre-treated water
  • Washing and rinsing water
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Industrial chemical cleaning
Industrial chemical cleaning

More than 1000 operations a year around the world

Unique patented processes
Quick results in a safe working environment
Effluent treatment
Effluent treatment

Experts in the design of innovative mobile units
Efficiency, flexibility & savings for problematic effluent
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News
16th October 2025
Nomination for the WNE Innovation Awards 2025!

As part of our participation in the upcoming World Nuclear Energy Exhibition, which will take place in Villepinte from 4 to 2 November 2025, we have been nominated in the ‘To boost Nuclear Installation Performance and LTO - Small companies’ category of the WNE Innovation Awards 2025.

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News
13th October 2025
A review of our participation in Pollutec 2025

A wonderful event that took place under the best of circumstances!

Participating in Pollutec means offering innovative solutions to accelerate the ecological transition and develop new markets. With 11 areas of expertise, inspiring conferences and numerous networking opportunities, these four days bring together all the technologies, solutions and equipment dedicated to the prevention and treatment of all forms of pollution, in order to preserve the environment and ensure sustainable development.

We had announced a rich programme, with targeted partners to discuss the key issues of the moment.

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News
6th October 2025
WEFTEC 2025 in Chicago

We exhibited at the last Water Environment Federation's Technical Exhibition and Conference, largest annual water quality exhibition in North America. This meeting has been providing a forum for knowledge and technology exchange within the water and wastewater fields since its creation, becoming the world’s leading water quality conference.

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CTP environnement
Head Office
1 Quai du Confluent
78 700 Conflans-Sainte-Honorine
+33 1 39 19 18 50

Major Projects & Innovation Service
+33 4 81 76 30 15

Nuclear Division
+33 4 81 07 62 88


Our branches in France
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CTP environment
Asia Pacific
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Tuas Bay Industrial Center
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SINGAPORE
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North America
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Edmonton, Alberta, T6B 3T5
CANADA
+1 (587) 754 0029


CTP environment
North America
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Etobicoke, Ontario, M9W 6P3
CANADA
+1 416 675 2565


CTP environment
America
11755 W Little York Building #9
Houston - Texas - 77041
USA
+1 832 617 8310


CTP ambiental
do Brasil
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Sala 1 A 08, piso 2, G. Atrium,
Centro, Holambra,
São Paulo, CEP 13825-000
BRAZIL
+55 19 3802 2770
CTP ambiente

Rua da Comital 61
4445-349 Ermesinde
PORTUGAL
+351 229 421 156


CTP environment UK
Unit 54, Adlington Business Park
Adlington, Cheshire, SK10 4NL
UNITED KINGDOM
+44 161 710 1180