national

TEPCO starts dismantling exhaust stack at crippled Fukushima plant

13 Comments

The requested article has expired, and is no longer available. Any related articles, and user comments are shown below.

© KYODO

©2019 GPlusMedia Inc.

13 Comments
Login to comment

If the nuclear arm of the Government of Japan had used scientific advancements to keep the SPF of all 7 nuclear reactors and the corium of 1-3 cool during and after entombing Fukushima Daiichi it would have been a great achievement. But instead we have go nowhere schemes, recycle, reuse cleanup projects that are a danger to everyone involved. If cement were poured on top of the whole NPP the exhaust stack would not be a danger. It is regrettable JAEA has made the choices that they have made.

-4 ( +0 / -4 )

Yet more radioactive particles will be spread by this demolition work-should just encase the whole area in concrete!

-3 ( +1 / -4 )

Utrack

it has been shown by several people that entombing the reactors is not possible because of underground water and river but you continue to push the false solution. The seven reactors are in two locations. Reactors 1-4 and reactors 5-6 which were not damaged and were empty of fuel at the time and can undergo the normal reactor decommissioning procedures.

You can't just pour concrete like cream on jelly. Not that easy. Didn't you study what was built at Chernobyl? The structure was built away from the reactor on rails and moved into place. There is no other solution because all the fuel was burnt and released into the atmosphere. The structure would have to be concrete reinforced by a steel structure. Just pouring concrete would be too weak and cause greater problems within a decade when it cracks and sinks.

TEPCO are working to remove all the fuel from the site including the melted fuel or corium.

kurisupisu

The area can not be encased in concrete. When removing the stack the radiation level in the immediate area will slightly increase but the areas around the reactors are already about 400 millisievert. Too high for any worker to be exposed for any length of time hence the need for remote controller cutting and lifting equipment.

1 ( +1 / -0 )

I am pretty sure rivers can and have been diverted in other locations all over the world. Advanced techology was to be engaged in solving the crisis of Fukushima Daiichi which is not similar to Chernobyl whose reactor containment blew outward. Fukushima Daiichi could have been entombed with the right research and funding being used for the endeavor.

-5 ( +0 / -5 )

Utrack

TEPCO tried to divert the rivers running under the reactors because they were filling the reactor basements with water which becomes contaminated with radiation before going out to sea.

TEPCO failed to divert them and the next solution was to build the ice wall around the reactors which greatly reduced the water reaching the basements.

Fukushima is the first experience of its kind in the world and many technologies have already failed. There are no easy answers like just pouring concrete over it. Concrete does not have strength without a rebar structure.

2 ( +3 / -1 )

JAEA and TEPCO have thrown vast sums of money to their connections in 5 engineering firms. To pay for ad hoc schemes that were just meant to generate the firms wealth. For the past 8 years this criminal conduct has been going on. Endangering scores of workers and citizens in Japan. It is criminal incompetence.

-4 ( +0 / -4 )

There are no easy answers like just pouring concrete over it. 

Right - plus, it would be unacceptable to the bureaucrats, who just want to make it go away so that they can pretend it never happened.

0 ( +2 / -2 )

If TEPCO just poured concrete onto the reactors it wouldn’t have the strength to withstand another powerful earthquake or tsunami and would continuously crack with the vibrations and sun requiring constant repairs and attention.

TEPCO have erected structures to cover the damaged reactor buildings reducing the levels of radiation being released.

Just covering the reactors with concrete won’t prevent the melted fuel leaking into the water underneath.

2 ( +2 / -0 )

TEPCO has already done just about all the damage it can do. Just bulldoze what's left into the ocean and hope it can make it's way to South Korea.

-1 ( +1 / -2 )

Article: Report From Japanese Nuclear Industry Insiders: Business is Booming

Excerpt: A lingering topic of the Fukushima incident has been how to go forward. Should nuclear plants in Japan be improved or discontinued. What have been revealed to reporter Hirotoshi Ito by industry insiders are the massive business deals being prepared behind this important social issue.

https://soranews24.com/2012/02/10/report-from-japanese-nuclear-industry-insiders-business-is-booming/

-2 ( +0 / -2 )

Utrack

you are quoting an article from 2012? In a gossip blog?

2 ( +2 / -0 )

Utrack

TEPCO have already announced last week that will apply to the NRA for a license to decommission it's 4 reactors at it's Daini nuclear power plant. The decommissioning work will take about 40 years.

2 ( +2 / -0 )

Regardless of opinions about the government and Tepco and all the people involved, this action was expected and needed and is an acceptable move. The past cannot be changed.., but the future can be made better by this effort. We moust give credit to those have taken up the responsiblity and the task to do the cleanup.

Cost in the Billons over 40 years is a daunting task, fraught with dangers and uncertainty.

We must give support to their effort, as it will definitely affect us and our heirs and the world.

0 ( +0 / -0 )

Login to leave a comment

Facebook users

Use your Facebook account to login or register with JapanToday. By doing so, you will also receive an email inviting you to receive our news alerts.

Facebook Connect

Login with your JapanToday account

User registration

Articles, Offers & Useful Resources

A mix of what's trending on our other sites