ScribbleLive

@Edano Do you have any better ideas at this point? I mean melt down and possibly melt through has ocurred with 3 reacters. They are trying to write a new playbook on this whole thing.

@Edano I think that is what they are doing. Pour water on the corium, and build some "backstop" to the airborne radioactive materials.

@elainekirk The groundwater goes to the sea here. Not great, but getting to the groundwater isn't great to begin with. At least it isn't headed for drinking water.

that's why i suspect they already know that it is in groundwater.

@RBeaner you ask me question but what do i know ? they don't tell me enough. :)

@Edano Chernobyl never used liquid nitrogen, they dug a tunnel for it, and realized it was a bad idea. Cold N will cause explosions with hot material.

@RBeaner : yes they definitely used nitrogen.

@RBeaner "On the 15th day of the Chernobyl accident, the enormous concrete mass had fully set up and solidified, so the liquid nitrogen was no longer needed." www.hiroshimasyndrome.com that's what i was referring to when i said, the russians stopped the major rad emissions within 2 weeks. they used liquid nitrogen.

@Angie no laugh. of course they can triangulate the corium. but they do not do it.

@Angie .... and know there is no chance.

"It took more than a week before a viable plan to stop the uncontrolled release of raw radioactive material into the environment was formulated. It took another two days to make it happen after the plans were put into effect. Tons upon tons of liquid nitrogen were continually pumped into the massive catacomb-like support area below the floor of the reactor compartment, eventually freezing the completely destroyed reactor fuel cell. By freezing the area, the flow of radioactive gasses ceased. After the radioactive gas flow ceased, workers kept pumping in liquid nitrogen while hundreds upon hundreds of truckloads of fresh, wet concrete were poured into and on top of the reactor compartment, as well as the rest of the decimated building. On the 15th day of the Chernobyl accident, the enormous concrete mass had fully set up and solidified, so the liquid nitrogen was no longer needed." www.hiroshimasyndrome.com

I am posting the rest on other page

@Edano "To reduce the likelihood of this, it was decided to freeze the earth beneath the reactor, which would also stabilize the foundations. Using oil drilling equipment, the injection of liquid nitrogen began on 4 May. It was estimated that 25 metric tons of liquid nitrogen per day would be required to keep the soil frozen at −100 °C.[14]:59 This idea[clarification needed] was soon scrapped and the bottom room where the cooling system would have been installed was filled with concrete" en.wikipedia.org I'm just saying they thought about it, tunneled for it (many men died for it) then they scrapped the idea and filled it with concrete.

"A plan was devised: to freeze the earth around the reactor with liquid nitrogen, and then build a heat exchanger in the ground beneath it to cool the core and prevent meltdown. Prianichnikov himself was sent in with temperature and radiation probes to discover how long they had before the core burned through the two metres of concrete foundations; meanwhile, miners were summoned from the coalfaces of Donetsk and the subway projects in Kiev to dig tunnels beneath the reactor. The scientists feared that pneumatic drills could disturb the foundations of the reactor, so they worked with hand tools, in conditions where wearing protective clothing was practically impossible, amid extraordinary fields of radioactivity. To freeze the ground, all the liquid nitrogen in the western Soviet Union was sent to Chernobyl: when it didn't arrive quickly enough, director Brukhanov received a late-night telephone call from the minister in charge of the operation. 'Find the nitrogen,' he was told, 'or you'll be shot.'

On 10 May, the fire finally subsided; it now seems possible that the graphite simply burnt itself out. The nitrogen was found, and the subterranean heat exchanger built, but by mid-May the temperature of the core had dropped to 270C; the exchanger was never even turned on. 'The miners died for nothing,' says Prianichnikov. 'Everything we did was a waste of time.'" www.guardian.co.uk

still i would recommend liquid nitrogen injection close to the corium.

+ the reactors are standing in contaminated groundwater.

@Edano "On 10 May, the fire finally subsided; it now seems possible that the graphite simply burnt itself out. The nitrogen was found, and the subterranean heat exchanger built, but by mid-May the temperature of the core had dropped to 270C; the exchanger was never even turned on. 'The miners died for nothing,' says Prianichnikov. 'Everything we did was a waste of time.'"http://www.guardian.co.uk/world/2006/mar/26/nuclear.russia