Contract award for waste treatment facility at Kozloduy

10 October 2011

A EUR 19 million contract to build a facility for treatment of low-level waste from Bulgaria’s Kozloduy nuclear power station has been awarded to a partnership of ONET Technologies and Bulgarian firm Risk Engineering.

The project, financed by the European Bank for Reconstruction and Development (EBRD) will span three years.

It involves the construction of 2500-square-metre facility for cutting and decontaminating LLW that arises from decommissioning operations at the Kozloduy site. The facility will have to treat four tons of waste per day, using techniques such as sandblasting, high pressure water jetting and chemical or electrochemical etching.

ONET Technologies is responsible for the design, manufacture and implementation of the cutting and decontamination processes. It will also carry out research, safety and radiation protection studies (about 25 000 hours). Risk Engineering will carry out construction of the building, the ventilation and the handling systems.

This Kozloduy contract is the second for ONET Technologies; it won a contract for the treatment of boric acid concentrates at the site in February 2009.


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The approval allows BHP Billiton to:

• Build new open pit mine that will eventually consume the existing underground mine


• Expand the existing smelter and build new concentrator and hydrometallurgical plants to process the additional ore and generate additional concentrate for export

• Build a waste rock storage facility (RSF) that would cover 6,720ha and eventually reach a height of approx 150m

• Build a new tailings storage facility (TSF), which would eventually reach a height of about 65 m, with the total area of the facility measuring approx 4,000ha

• Develop a new airport that will be able to handle larger aircraft

• Build new cogeneration and gas fired nuclear power stations

• Construct a desalination plant at Port Bonython connected to Olympic Dam by a 320km pipeline

• Install a 105km rail line connecting Olympic Dam to the national rail network near Pimba





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