A leak of highly radioactive nuclear fuel dissolved in concentrated nitric acid, enough to half fill an Olympic-size swimming pool, has forced the closure of Sellafield's Thorp reprocessing plant.
The highly dangerous mixture, containing about 20 tonnes of uranium and plutonium fuel, has leaked through a fractured pipe into a huge stainless steel chamber which is so radioactive that it is impossible to enter.
Recovering the liquids and fixing the pipes will take months and may require special robots to be built and sophisticated engineering techniques devised to repair the £2.1bn plant.
The leak is not a danger to the public but is likely to be a financial disaster for the taxpayer since income from the Thorp plant, calculated to be more than £1m a day, is supposed to pay for the cleanup of redundant nuclear facilities. The closure could hardly have come at a worse time for the nuclear industry. Britain is struggling to meet its target of cutting greenhouse gas emissions by 20% of 1990 levels by 2010, despite a substantial programme of wind farm construction, while generating capacity will also be hit by the rundown of some of Britain's coal-fired power stations."
No comments:
Post a Comment