However all methods have high energy consumption and substantial requirements for removal of waste heat ; none are currently still in use .
A demonstration plant was built in Brazil by NUCLEI , a consortium led by Industrias Nucleares do Brasil that used the separation nozzle process .
All methods have high energy consumption and substantial requirements for removal of waste heat ; none are currently still in use .
A demonstration plant was built in Brazil by NUCLEI , a consortium led by Industrias Nucleares do Brasil that used the separation nozzle process .