Contact
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
Download PDF

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

France

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).

The condensers in question were made up of brass tubes (an alloy of copper and zinc) partially scoured by the high pressure of the water used for cleaning, resulting in a residual concentration of copper and zinc in the cleaning effluent. CTP environnement was commissioned to treat 1000 m3 (1308 yd3) of cleaning effluent discharged into the rainwater network.

image

The following treatment process was put in place:

Two treatment campaigns produced the following results:

image

Treatment using a physico-chemical Clearflow® mobile unit, consisting of insolubilisation, coagulation, flocculation and clarification, demonstrated its effectiveness throughout the process, by guaranteeing the consistent quality of discharges right across the site. The volume of waste was also dramatically reduced, with no additional technological waste (filters for example).

News
10th June 2025
New Logistics Hub in St-Quentin-Fallavier, France

Our Supply Chain department has moved to a new site in St-Quentin-Fallavier (38), bringing together our fleet of mobile units and water & air treatment equipment.

A new warehouse designed to support our growth and improve the working conditions of our teams.

More
News
20th June 2025
Our North/Normandy Agency is moving

After 29 years in Petit-Couronne (76), we have chosen Bosgouet (27), but we remain your dedicated contact in the area!

More
News
26th May 2025
A Gazelle at CTP environnement !

We are proud to have sponsored Olivia, our Operations Manager for the Nord/Normandie branch - alias Les Normandes ont des zelles - in support of the AMFE association (Association of Liver Diseases from Childhood) during her participation in the 34th Rallye Aïcha des Gazelles.

More