Tokyo (CNN) -- A first attempt to plug a cracked concrete shaft that is leaking highly radioactive water into the ocean off Japan failed Saturday, so officials are now exploring alternatives
Water from the 2-meter-deep, concrete-lined basin has been seen escaping into the ocean through a roughly 20-centimeter (8-inch) crack, the company said earlier Saturday. The shaft lies behind the turbine plant of the No. 2 reactor at the Fukushima Daiichi nuclear plant, which was heavily damaged
Meanwhile, Nishiyama said there is a plan to inject nonflammable nitrogen into reactors 1, 2 and 3 to prevent the risk of another hydrogen explosion like the ones that extensively damaged the unit 1 and 3 housings in the days following the March 11 earthquake and tsunami. A buildup of hydrogen is an early sign of damage to a reactor's superheated core, but Nishiyama said no alarms had been sounded about rising pressure and that adding nitrogen would not force engineers to release hydrogen from the reactor vessel作者: kathyenroute 时间: 2011-4-3 06:15
