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The company in charge of the embattled Fukushima nuclear plant has declared that it is on track to end the crisis, the crippled reactors are stable and cool and radiation levels at the facility are falling. Officials at Tokyo Electric Power Co said that emergency crews operating at the plant, which was devastated by Japan's March 11 earthquake and tsunami, have connected the critical water decontamination and recycling systems and that cold shutdown of the plant should be achieved on schedule by January. "Contaminated water had accumulated in the reactor buildings and turbine buildings, but we now have a system in place that purifies the water so we can push it back into the reactors to cool them," said Yoshikazu Nagai, a spokesman for the company. "The system is working well and the temperature at the bottom of the reactor chambers is between 110C (230F) and 150C (302F)," he said. The aim is to bring the temperature of water in the reactor below 212F (100C), which halts the release of radioactive steam.
Monitors at the plant indicate that radioactive emissions – which contaminate groundwater, seawater and the air – are gradually falling, while work has begun on the construction of a huge shroud over the No. 1 reactor building that is designed to further reduce radioactive releases. Conditions for the emergency teams at the plant have also been improved, with the construction of a dormitory and improved cooking facilities, Tepco said. The company recognises that the clean-up process at the plant and over hundreds of square miles of now-abandoned neighbouring farmland, mountains and towns will take many years. The long-term goal is to start removing the spent nuclear fuel from the reactors three years after achieving cold shutdown. The government has indicated that tens of thousands of people evacuated from the 18-mile exclusion zone around the plant may be able to return to their homes within the next few months if radiation levels continue to fall.
[The monitoring is stopped! RSOE EDIS
[The monitoring is stopped! RSOE EDIS
Originally posted by Blaine91555
reply to post by ALOSTSOUL
Are you disappointed it is no longer at disaster level?
Good news all the same.
Originally posted by Human0815
I think it is okay to stop to watch for Airborne Radiation in Europe at this moment,
but instead of turn our awareness off we should focus on our Food, this need
a permanent Observation and Testing!
Originally posted by ALOSTSOUL
The company in charge of the embattled Fukushima nuclear plant has declared that it is on track to end the crisis, the crippled reactors are stable and cool and radiation levels at the facility are falling.
"The system is working well and the temperature at the bottom of the reactor chambers is between 110C (230F) and 150C (302F)," he said. The aim is to bring the temperature of water in the reactor below 212F (100C), which halts the release of radioactive steam.
The government and Tokyo Electric Power Co. are boasting success in achieving the first stage in the road map to stabilize the reactors at the Fukushima No. 1 power plant, but experts said big challenges remain as the utility moves to the second phase, the goal of which is to achieve a cold shutdown in three to six months. In the newly updated plan, released Tuesday, the two sides defined cold shutdown as bringing the temperature at the bottom of the pressure vessels in the stricken reactors to below 100 degrees. They also plan to reduce the amount of radioactive materials being released from the containment vessels and keep the radiation level around the plant to less than 1 millisievert per year by mid-January, which may enable some evacuees to return home.
To substantially reduce the amount of radioactive materials released from the plant, Tepco needs to get to the bottom of the problem: plugging holes or cracks in the reactors' containment vessels that are allowing contaminated water to flood on-site facilities, including the reactor buildings and turbine buildings, experts said. The updated road map, however, includes no reference to this critical work in the second stage, even though it was mentioned in past plans. And without fixing this problem, it is difficult to say that the release of radioactive materials is under control.
"In terms of managing the leakage of radioactive materials, I think plugging the holes will be the most important point," said Tsuyoshi Misawa, a professor of reactor physics at Kyoto University's Research Reactor Institute, adding he was perplexed it wasn't included in the new plan. Hisashi Ninokata, a professor of reactor engineering at Tokyo Institute of Technology, also stressed the importance of plugging the leaks in the containment vessels. "It seems unclear what kind of plans they are considering," Ninokata said.
Originally posted by mugger
reply to post by Blaine91555
I will not be irrational, but has it been contained? The threat reduced to allow the people back? Who is making these claims? Should anyone trust their government opinion? If a independent company goes onsite and reviews the data, then I might let them some leeway.
"Looking for ways to stabilize the damaged reactors" - Doesn't quite sound like they are, so which is it?
The operator of the Fukushima Daiichi nuclear power plant has begun looking for new ways to reduce the amount of contaminated water that is hampering efforts to stabilize the damaged reactors.
"390 tons of water into the reactors every day, but most of it becomes contaminated with radioactive materials" - If the reactors were stabilized and not breached, how exactly would this water be becoming "contaminated" Perhaps by direct contact to breached core material that are still reacting and leaking completely out of containment vessels?
TEPCO decided to use the robot to find methods of cooling the nuclear fuel in the first 3 reactors with less water. The utility injects about 390 tons of water into the reactors every day, but most of it becomes contaminated with radioactive materials.
"Reducing the volume of contaminated water is the key to putting the reactors under control" - Hmmm. To still need to put something under control implies that currently it isn't, doesn't it?
TEPCO says the temperature of the No.3 reactor is relatively stable, but it needs more water than the others because of leaks and other problems. Reducing the volume of contaminated water is the key to putting the reactors under control, but a system for treating radioactive water has been hit by a series of troubles.
Originally posted by Blaine91555
Why worry about feeding irrational fears from paranoid people. A horrible thing happened but even the worst disasters have a point where they end and the rebuilding begins.