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Fukushima leak 300 tonnes of highly radioactive water to the sea every day

singveld

Alfrescian (Inf)
Asset
Did they said 300 tonnes of radioactive water.
300 000 kg of water = 300 000 litre of water.
an olympic size swimming pool is 2500000 litre of water.
which is only 1/8 of a pool into the sea.
That is so insignificant, why is it news? Anyway, the first people who dies is japanese.
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Japan's prime minister pledged government action on the Fukushima clean-up, as radioactive water leaks from the nuclear plant.

On Wednesday, a government official said up to 300 tonnes of highly radioactive water may be flowing into the sea every day.

Prime Minister Shinzo Abe said the government would take "firm measures" to contain the leak.

One proposal being considered is to freeze the ground around the plant.

The plant was badly damaged by an earthquake and tsunami in 2011. It has been hit by a spate of water leaks and power failures in recent months.

"Rather than relying on [plant operator] Tokyo Electric, the government will take measures," Mr Abe told reporters on Wednesday.

"This is an urgent matter that needs to be addressed."

Penn Bowers, a research analyst at CLSA Asia Pacific in Tokyo, told the BBC that the government appeared to be set to take a bigger role in the Tepco clean-up.

"[The government has] invested capital in the company to date but not taken any direct operational steps at the facility until now," he said.

'Frozen wall'
Contaminated water may have been leaking from the plant into the sea ever since the 2011 nuclear disaster, an official at Japan's energy ministry said.

The government believed that up to 300 tonnes of radioactive water could be leaking into the sea on a daily basis, the official added.

However, plant operator Tokyo Electric Power Company (Tepco) told the BBC that the figure was only a guess, and that it was not clear how much water flowing into the sea was contaminated with radiation.

The contaminated water is thought to have come from the 400 tonnes of groundwater pumped into the plant every day to cool the reactors, after cooling systems were knocked out by the tsunami.

The government is discussing proposals to build a wall of frozen ground around the reactor buildings to prevent further leaks. Reports suggest this could cost up to 40bn yen ($400m; £260m).
 

tonychat

Alfrescian (InfP)
Generous Asset
2011 leaking till 2013 then say must clean up..

i thought Japanese are better than this?
 

peppertail

Alfrescian
Loyal
Did they said 300 tonnes of radioactive water.
300 000 kg of water = 300 000 litre of water.
an olympic size swimming pool is 2500000 litre of water.
which is only 1/8 of a pool into the sea.
That is so insignificant, why is it news? Anyway, the first people who dies is japanese.
--------------------------------------------------------------------------------------------------------------------

Multiply that by the numbers of days it's already leaking and it's well worth the news. Also, it would not surprise me if those numbers are on the 'safe' side.
 

longbow

Alfrescian
Loyal
You know how water flows - it not only leaks into sea but into ground water and contaminate everything for the next 10,000 years. It is a catastrophe but people keep quiet to tamp down the fear.

This plant could take another 20 years to cool down ......................
 

tonychat

Alfrescian (InfP)
Generous Asset
You know how water flows - it not only leaks into sea but into ground water and contaminate everything for the next 10,000 years. It is a catastrophe but people keep quiet to tamp down the fear.

This plant could take another 20 years to cool down ......................

how do you filtered radioactive water?
 

tonychat

Alfrescian (InfP)
Generous Asset
Just check this out:

Water can and does become radioactive, in the form of Deuterium or Tritium. Tritium is a beta emitter with a 12.3 year half-life.

This cannot be filtered out of the water, period. It is just another neutron added onto the H20 molecule, so it is an isotope of water, which will behave chemically the same (same boiling point, reactivity, etc) so even distilling water that contains tritium, will not remove the tritum, as it will boil and condense as water does.

Mechanically filtering out contaminated dust and what not, is possible, as stated above, with the right size (small micron) filters.

However, the majority of fallout isn't radioactive dust, it's actual isotopic contamination, like Iodine, Krypton, Xenon, Cesium, etc... from fission processes, in the form of gases that decay into ionic daughters.

Those ionic daughters have a charge, and therefore a H-OH style mixed bed resin (like those used in water softeners) that is able to remove Na+ and Cl- due to the charge on the ions, can also remove the ionic particles.

You can filter alpha and beta radiation, because they are particulate (one is a helium nucleus, the other an electron). Gamma and neutron radiation cannot be filtered, but those are emitted particles, and you cant filter the emitted particle, just the emitter. You can also shield the emitters to reduce radiation.

Yes, if you have an ionic (chemical) or particulate (mechanical) filter and you are filtering radioactive particles out of water, those will become radioactive. Of course, consider that if the water is of low enough radioactivity that you can approach it, capture it, and filter it, it will take a long time for your filter to become appreciably radioactive, probably beyond the functional life of your filter.

Tritiated water? Well, consider it takes intense neutron radiation fields, for extended times to generate appreciable amounts, you would likely only encounter this as leakage from around nuclear reactors in ground water, and not as fallout.
Read more at http://www.survivalistboards.com/showthread.php?t=230594#3DECsFZ054Pi8FUc.99

then how, we all die liao lah...
 

tonychat

Alfrescian (InfP)
Generous Asset
did a search no it:

http://blog.highwaterfilters.com/fi...es-from-drinking-water-whats-the-best-method/


spectrum.jpg



Filtering radiation (radioactive particles) from drinking water. What’s the best method?
Posted on April 14, 2011 by Hilary

It’s been over a month since the tragic earthquake in Japan left a large portion of that country in a constant state of high alert. Concerns for leaking radiation from damaged nuclear plants continue to make many people all over the world nervous about the possibility of radioactive emissions falling in their area of the globe. Don’t let those who are quick to dismiss these concerns as “going overboard” deter you from getting the facts for yourself. Anyone who wonders what the dangers are should research the risks posed and decide if precautions are needed, even if the only benefit is peace of mind. Don’t we all at least wish for this?

As I’ve said in my previous blog post about radiation and drinking water, there are so many claims out there about what method is best for filtering radioactive particles from water. It’s difficult to separate truth from wishful thinking. Chemistry was never my strong suit, but I’m learning a lot about radiation these days.
I am happy to share what I have discovered with you here.

I went to the Environmental Protection Agency’s website to see what information they have available about radiation. I discovered they had plenty of free info available to citizens like me.

I learned that most radiation occurs naturally at levels too low to be concerned about. I learned there exists a spectrum of radiation that includes lower level non-ionizing radiation such as sound waves, light, and microwaves. This is not the type of radiation we should be worried about, however. On the higher end of the spectrum is radiation that falls within the “ionizing radiation” range. Radiation within this range can be used in manufacturing processes, in cancer therapy, and to generate electricity. Radiation from Japan’s nuclear facilities falls into this category.


Types of Radiation in the Electromagnetic Spectrum

There are three main kinds of ionizing radiation: alpha particles, beta particles, and gamma rays. The kind we are concerned about affecting our health from a nuclear reactor accident are beta particles.
I could give you a detailed description about how beta particles are formed, but I doubt I’d fool you into thinking that I know what I’m talking about. In a nutshell, when the ratio of neutrons to protons becomes too high, it causes a chain reaction that forcibly removes an electron from the nucleus of an atom. The original radionuclide, considered a “beta emitter”, is transformed into a different element.
There are many beta emitters including cesium-137, strontium-90, and iodine-131. Radioactive iodine is the biggest concern after a nuclear reactor accident. These particles are what are most likely to cause contamination to our food or water after a nuclear accident.

According to information from the EPA’s website, “ Direct exposure to beta particles is a hazard, because emissions from strong sources can redden or even burn the skin. However, emissions from inhaled or ingested beta particle emitters are the greatest concern. Beta particles released directly to living tissue can cause damage at the molecular level, which can disrupt cell function. Because they are much smaller and have less charge than alpha particles, beta particles generally travel further into tissues. As a result, the cellular damage is more dispersed.”

A common fear of exposure to radiation from contaminated food and water after a nuclear accident is the threat of cancer. This can occur after long term low-level exposure and can take many years before symptoms appear. Immediate threats from higher doses of radiation can include burning of the skin and radiation sickness, or radiation poisoning. Symptoms include premature aging, nausea, hair loss, weakness, diminished energy, and sometimes death. Other long term health effects include physical anomalies in babies who are exposed in the womb, and genetic mutations passed on to future generations.
So that’s some background information for you to try to absorb, but the burning question of the day remains, how can we protect ourselves if water becomes contaminated after a nuclear accident?



First off, it is useful to know the MCL (maximum contaminant level) for beta particles in water. The EPA sets this at 4 millirems per year. If your water exceeds levels that could cause you harm, the EPA lists (drum roll, please)

ion exchange and reverse osmosis as the two methods of filtering water that are proven effective.

So there you have the results of my investigation. I am not saying there isn’t information out there on the web that will dispute this conclusion, and I know there are many who would never depend on or trust the EPA for a decision that may be the difference between life and death. I encourage you to do further research and see if there is information out there that can support, or dispel, these claims.
I am especially curious to learn of any credible information as to the effectiveness of silver-impregnated ceramic filters like are in many of our Katadyn water filters, including our best-selling Pocket Microfilter.



I am also interested to see if claims that distilling removes radioactive particles is true. especially regarding iodine-131. Since we sell Katadyn products, and portable non-electric distillers, I would be pleased to know that both these methods are effective against the type of radiation we are currently concerned with. Unfortunately at this time, all I can claim is that the silver impregnated ceramic filters and distillation can reduce radioactive particles. And for me, that is an added sense of security.

Please feel welcome to leave a comment if there is anything you can add to this conversation, or if you have any questions that you are itching to ask. I will do my best to respond and find answers.

Thanks for reading!
 
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