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The Status of the Fukushima Clean-Up
doom writes "Ian Sample at the Guardian UK does a really thorough write-up of what's going on with the Fukushima Clean-up. From the article: 'Though delicate and painstaking, retrieving the fuel rod assemblies from the pools is not the toughest job the workers face. More challenging by far will be digging out the molten cores in the reactors themselves. Some of the fuel burned through its primary containment and is now mixed with cladding, steel and concrete. The mixture will have to be broken up, sealed in steel containers and moved to a nuclear waste storage site. That work will not start until some time after 2020.'"
it still sucks and it's going to take forever to clean up.
Anons need not reply. Questions end with a question mark.
The plants were stopped. Unfortunately, stopped nuclear plants still produce heat, so they need cooling (lots of cooling at that).
The tsunami broke the cooling installation, so the heat from the "non-functional" reactors (or storage pools or whatever) had nowhere else to go fast. If I remember correctly, two of the nuclear plants were to be decommissioned, and were kept at "zero operating power" (that is, as low as possible). As they weren't cooled enough, they had a heat buildup that ended with meltdown.
They haven't actually restarted yet, fwiw. The operator has applied for permission to restart them, and after some controversy, the government has decided in principle to consider the request, so the relevant agency has started a safety assessment. Even if approved, they are unlikely to restart before 2016.
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And I have two things to say.
1. It's an incredibly difficult job where new challenges have to be met with new thinking every day.
2. The people who are doing the difficult work deserve a huge gratitude of thanks for their effort. Working in full radiation suits and masks in 35C temperatures in summer took extraordinary strength of purpose and determination.
All of you that are going to make jokes about glowing whatever and Godzilla can go fuck yourselves. And I mean it. Go Fuck Yourself.
I am held AGHAST by the biblical-level hysteria that is circulating about Fukushima these days. It is being served up and replicated with the relish of the street-corner preacher with an end-of-world sign. Every die-off of fish is related (ignore the Atlantic), the melting starfish (never mind it's happening worldwide), from mammals to narwhals there is some serious confirmation bias being stirred.
The computer model plume of currents has DEATH arriving at the United States West coast; mere detection of miniscule amounts of Cesium -- which science is capable of to an extraordinary level of precision -- is being fronted as a radioactive death sentence.
There seems to be no deference to expert or even medical opinion on true risk factors; and in the tired vein of disaster porn, any appeals to consider such generates a (predictable) backlash of conspiracy coverup allegations. At times it is literally a no-think zone.
Radioactivity is the new whipping boy of disaster porn.
NO-HYPE Fukushima information:
Fukushima Accident Updates. Leslie Corrice has done an excellent job chronicling the accident from 2011. Following the latest posting thread backwards in time (some 60 pages so far) is a detailed account you will find nowhere else.
Fukushima Accident Commentary Leslie Corrice again, exhibiting a level of journalistic integrity that is fast-fading on today's news and Internet sources, has maintained a separate thread of personal opinion and commentary. It is as fascinating a read as the last, here you will find topics of politics, culture and status and observation of the Fukushima victims' compensation fund and resettlement.
Nuclear Industry source: Nuclear Street tag: Fukushima
Rod Adams' Atomic Power Review has scaled down its Fukushima coverage as of late, but in the archives you will find some detailed articles with week-by-week coverage.
Do add more!
<blink>down the rabbit hole</blink>
And I've stopped eating Sushi.
So you were happy when the coal plants were dumping untold amounts of mercury and other crap into the sea (it all winds up there eventually), but now you've stopped eating fish because of Fukishima?
You need to evaluate your risk assessment strategies.
SJW n. One who posts facts.
This will get little coverage in news outlets around the world, but its worth spreading and this article is as good as any to mention it. The Japanese Lower House, in the Diet, passed a bill which set up a National Secrets law. Essentially it is an anti-whistleblower law. It has many of the usual sections present in other countries save for one. The bill sets forth that all information dealing with "nuclear energy" will be considered a national secret and releasing any information without the oversight of the government will basically be illegal.
This means that if something bad is happening at the Fukushima plant, then we have to rely on someone doing the moral thing and telling the world and then going to jail.
The bill still has to go through the Upper House but it's likely to pass without much opposition even though the media and the public have been strongly opposed to it. It seems very likely that the bill is there to cover up any bad information that might tarnish Japan or TEPCO's image.
Japan state secrets bill on track to become law despite protests
That post's own source article says quite the opposite, that the water will only be returned to the Pacific after treatment. Not exactly being honest with the readership, there.
No kidding!!! What do you say at this point?
Most fish used in sushi doesn't come from the Pacific.
It comes from fishing farms, where the fish have so little room that most are sick, so pesticides and anti-biotics are used to keep them alive until they're good to harvest.
No need to tell you eat that stuff as well.
That a simplification but essentially correct.
In fact both the earthquake and tsunami damaged the cooling system. They could have recovered from that using emergency pump trucks, which in fact they did try to do. The problem was that all the monitoring equipment was out of action due to lack of power, so they were unaware that a valve was open and syphoning off the water they were pumping in before it reached the reactors. The tsunami damage made getting near enough to make manual checks difficult, and then things started to explode as well.
The plant was designed to survive flooding and tsunami, it just didn't work in a real emergency situation. That is why when operators claim that their plants are safer or they have some new design that can't possibly go wrong people are sceptical. The same reassurances have been made before.
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SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
that the water will only be returned to the Pacific after treatment.
What treatment are you talking about?! If you call the plan for dilution a "treatment" then yeah. other than that how exactly to they plan to "treat" irradiated water before dumping it in the ocean?
Erm, nothing? Because diluting it to the point where it's not a big deal is the plan? It's not as if the stuff is going to magically re-concentrate itself after dilution and sea dumping. Hell, they could probably just dump it all into the depths of the pacific as is without dilution. It's a lot of ocean with a relatively tiny amount of radioactive material going into in as a one off. Really, it's just about the safest thing they can do with the stuff.
By the way, where did they get the info saying that the fuel had "burned through" the pressure vessel? Afaik, that is essentially impossible.
They are filtering the waste water and using ion exchange systems, zeolite cartridges and the like to remove the radioactive materials in solution. That's how they're "treating" contaminated water (irradiation isn't the problem).
The water itself isn't radioactive, it's just hydrogen and oxygen. There may be some tritiated water in there but very very little, same with radioactive isotopes of oxygen. The contamination they are dealing with is radioactive particles in some cases, in others chemical substances in solution like cesium and strontium. Until the levels for all the contaminants are below international standards then the water can't be released into the sea.
I love sushi, but what I fear about it is the possibility of parasites. I would be a lot happier if sushi were routinely irradiated.
Two reactors at Ohi were restarted back in 2012. Japanese nuclear regulations require a shutdown and inspection of all reactors every thirteen months, usually done as part of a refuelling operation. The Ohi reactors have been shut down again after operating for thirteen months but are not restarting after inspection and refuelling for various reasons, mainly bureaucratic and local-political.
Soooo diluting the irradiated water, with clean water, before dumping it into more water (i.e. the ocean) is all Ok because it has been "treated". The mind boggles.
To be quite blunt, "Yes". In fact, it doesn't even really need to be treated or diluted . You could pour it right into the middle of the pacific ocean and it would do no harm. That's just how big the ocean is and how low the concentration of radioactive material in the coolant is already, before you even dump it in the ocean. The extra filtering and dilution is a wee bit overkill. "Overkill" being what governments around the world (for some odd political reason) mandate that anything "nuclear" has to do in order to be allowed to even possibly exist as a concept.
Also, the water itself is not "irradiated". The radiation emitters are suspended within the water. As long as we can bring the concentration down, then it becomes far less dangerous than it already is. But oh wait, it's already barely anything to worry about. What boggles my mind, is why they haven't dumped the water into the pacific already. I think it would be best to transfer the water onto a ship for disposal a few hundred miles or so out to sea, just to stop any chance that the particles of the radioactive materials have of being washed back up on land in any sort of concentration above "one or two atoms per litre" (the actual unit escapes me).
Look, the article you're commenting about says they're going to treat the water with their Advanced Liquid Processing System prior to discharge. That will take most of the radionuclides out. I know most people can't be bothered to do even basic research before making unfounded claims, but maybe you should consider it? In cases like this, where there are real risks, unfounded fear mongering will detract from those risks in the long-run.