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Pacific island nations urge Japan to delay release of Fukushima waste water

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There is a solution to take care of radioactive water problem, called evaporation.

With this, only pure water is evaporated into the air while radioactive materials are left behind to be collected.

@samit

Your absolutely correct and thankyou for that as i had said that numerous times before.

The radioactive materials in the water are undilutable because they are suspended .

Much the same as a mud puddle.

What happens when the water evaporates from a mud puddle ?

Your left with mud !

Exactly !

However i would recommend a giant evaporation apparatus to collect the water vapor as i don't trust they effectively filtered all the water soluble elements.

A large swimming pool perhaps would be sufficient as the surface area is expanded for more rapid evaporation.

This is just completely wrong! The situation is not like a muddy puddle where you can just evaporate the pure water and be left with the solid mud - in the case of the Fukushima water, the water is radioactive because some of the water molecules themselves are radioactive! It has already been processed to remove anything radioactive that is dissolved or suspended in it. Evaporation will not separate the non-radioactive water molecules from the radioactive ones - the radioactive water will evaporate at almost the exact same rate as the non-radioactive water.

6 ( +8 / -2 )

Just to put some perspective on this - the atomic bomb dropped on Hiroshima released in a fraction of a second 10,526,315,789 times as much radiation as that contained in all of the water to be released from Fukushima over a period of "decades", according to my calculation. In addition, tritium (as tritiated water) does not tend to bioaccumulate, as most organisms are continually taking in and excreting water.

6 ( +7 / -1 )

There is a solution to take care of radioactive water problem, called evaporation.

With this, only pure water is evaporated into the air while radioactive materials are left behind to be collected.

Yeah, nah. That doesn't work. The isotopes are in the water and all you would create is radioactive steam. Evaporation CAN be a step in some of the removal processes.....they can use resin to bind to the radioactive isotopes, THEN they evaporate the water off, separating the radioactive resin from water...but isn't effective for all isotopes and tritium might be one of those isotopes that can't be filtered in this way. They would still be left with highly radioactive waste that would need long term storage somewhere.

4 ( +7 / -3 )

As usual, as soon as the word nuclear is used everyone reacts emotionally instead of looking at the science. The sea is naturally radioactive, once diluted by the Pacific Ocean this minuscule amount if water (comparatively) will make no measurable difference.

True it would have been better if the problem had never arisen but you need to ask TEPCO about that.

4 ( +9 / -5 )

Ocean currents will carry the radioactive water all around the world. All fish in all oceans will be affected. Does Japan expect and want the world to eat radioactive fish? Does Japan want all fish eaters in the world to eat carcinogenic fish?

There are too many unknowns about nuclear radioactive water.

JAPAN BE CAREFUL ! DO NOT................................!

3 ( +14 / -11 )

Right. All countries have the right to be 100% sure nuked water will not do any damage to the oceans and to other countries around Japan [and across] the globe.

2 ( +20 / -18 )

There are better alternatives they are just unpalatable because they cost more and the TEPCO execs want to get paid....

2 ( +7 / -5 )

Why not just pump all the radioactive water into volcanic craters and let the molten lava neutralizecit?

Radioactive nuclei are not affected by heat - you could heat it up to a million degrees and, while the chemical composition might change, you wouldn't change the level of radioactivity. Pumping it into a volcano at a temperature of maybe 1000-2000 degrees, it would just come straight back out again in the form of radioactive steam, presumably to then fall back to the ground as radioactive rain!

Roy is exactly right - most of the other heavier radioactive isotopes (e.g. uranium etc) have already been removed and all that is left is tritium (basically a hydrogen atom with two neutrons added to the nucleus making it radioactive), which will be in the form of tritiated water molecules (some of the H atoms of H2O replaced by tritium giving TOH or, to a much lesser extent T2O). There is pretty much no practical way to separate tritiated water molecules from normal water, certainly not on the vast scale required anyway - no chemical processes will work and most physical processes - evaporation, filtration etc will have no effect. There really is very little that can be done with it short of dumping it into the vast ocean.

2 ( +6 / -4 )

The cooling will be needed for many more decades or until TEPCO works out how to remove the molten fuel or repairs the cracks in the container vessels.

2 ( +4 / -2 )

It is treated water that is safe to use, but has forever been stigmatized as "nuclear waste water."

The Japanese PM and his cabinet should travel to Fukushima and be seen to publicly drink the water, as a way to show that it is now safe to use.

2 ( +2 / -0 )

Radioactive waste discharge cannot be considered ‘safe’ at any time of the day

0 ( +26 / -26 )

This got to be one of the saddest and most disturbing events of the century.

0 ( +5 / -5 )

Such protest or objection from Pacific island nations are not reported at Japanese major media who are scared at LDP regime or nuclear industries.

0 ( +9 / -9 )

Peter14Today 06:24 pm JST

If they are sure it is safe to release then do two tests. Dilute it with sea water in a controlled environment, to the point it would be in nature when released and then test one, those saying it is safe can swim in it. A second test to release a small number of different sea life in the controlled test and monitor them for a year for changes in DNA integrity and radiation levels against normal and see the results.

In a real release the dilution would continue over time but in a controlled test it wouldn't. If in the test it all appears safe then a release with continued natural dilution should be fine.

It isn't really necessary - they know how radioactive it is and there is plenty to compare it to - they are planning to release tritium contaminated water with a total 760 TBq over a period of decades. Sellafield reprocessing plant releases more than that in two years into the Irish sea. La Hague processing plant releases more than ten times that amount (11400 TBq) every year into the English channel. Bruce nuclear generation station releases about the same amount every year into the Great lakes etc.

0 ( +1 / -1 )

A: It is very difficult to remove tritiated water from water, as it has the same properties.

Experts have concluded that there is no tritium separation technology that is immediately applicable to treated water with low concentrations and large volumes.

IAEA (International Atomic Energy Agency) is “not aware of a solution currently available for the separation of tritium commensurate with the concentration and the volume of treated water”.

https://www.meti.go.jp/english/earthquake/nuclear/decommissioning/qa.html

“They have huge volumes of water so they cannot evaporate it like they did at Three Mile Island,” Klein said. “If they did it would likely be evaporated, go out over the ocean, condense and fall back as rainwater. There’s no safety enhancement.”

https://www.reuters.com/article/us-japan-fukushima-water-idUSKBN0MZ0WC20150408

0 ( +1 / -1 )

Many people here would be surprised the amount radiation radiation X-ray, CT scan... 

Tritium is released by all nuclear power plants around world, everyday !

0 ( +1 / -1 )

Delaying the release will only prolong the inevitable. Japan never intended to do anything else with this water than release it into the ocean. They sat on their hands watching the water build up to a point where they have no choice than to release into the ocean. The reports stating the water was not properly filtered and contains more than just tritium have been swept under the carpet. This whole scenario bud a huge disgrace.

-1 ( +8 / -9 )

It appears the government does not have the authority to buy land unless the owner wants to sell and some land being used by TEPCO states what it can be used for.

I suggested that the entire 20 km exclusion zone should have stayed in place with the government buying it up and using it to deal with the disaster.

-1 ( +1 / -2 )

If they are sure it is safe to release then do two tests. Dilute it with sea water in a controlled environment, to the point it would be in nature when released and then test one, those saying it is safe can swim in it. A second test to release a small number of different sea life in the controlled test and monitor them for a year for changes in DNA integrity and radiation levels against normal and see the results.

In a real release the dilution would continue over time but in a controlled test it wouldn't. If in the test it all appears safe then a release with continued natural dilution should be fine.

Not the most eloquent explanation but you get the idea.

-1 ( +2 / -3 )

Ken Buesseler, a scientist with the Woods Hole Oceanographic Institute, told the forum on Wednesday that a PIF scientific expert panel was urging Japan to reconsider the waste release because it was not supported by data and more information was needed.

They have previously surveyed the ocean areas for radiation.

The water and the Tritium cannot be separated by evaporation. Tritium has a half-life of 12 years.

-1 ( +0 / -1 )

IAEA guaranteed it's as safe as other nuclear power plants' wastes.

Why doesn't Austkorea accuse China and Korea which are releasing dirtier wastes?

-1 ( +1 / -2 )

The waste water is safe and it is also a byproduct of current operating boiling water reactors around the world and being released constantly.

Somehow the ones here are dangerous?

-2 ( +8 / -10 )

Our region is steadfast that there be no discharge until all parties verify it is safe," PIF Secretary General Henry Puna said on Wednesday at a livestreamed public meeting in Suva, Fiji.

The world should be concerned too!

-4 ( +20 / -24 )

@Hiro

There is a solution to take care of radioactive water problem, called evaporation.

With this, only pure water is evaporated into the air while radioactive materials are left behind to be collected.

-4 ( +13 / -17 )

Why not just pump all the radioactive water into volcanic craters and let the molten lava neutralizecit?

-4 ( +4 / -8 )

Japan has delayed by more then a decade. It's 2023 already.

The more we wait, the more political is becoming.

Experts will be there to monitor the release from around the world. Other countries with science and knowledge have approved the release.

-4 ( +4 / -8 )

BTW, I tried to analyze radiation levels there and was forcefully blocked. Nothing to hide?

-4 ( +3 / -7 )

Japan's LDP regime and Tepco have other option such as buy new grounds and build new tank.

LDP regime spend trillions yen to buy weapons from US, but dislike to spend money about nuclear disaster, and mere chose plan that dump radioactive contaminated water from Fukushima to Pacific as "cheapest way". and they ignored opposition of Japanese fishery group or Pacific island nations and health or lives of people or environment.

Pacific Island Forum or Japanese fisherman had said "if it's safe, dump it in Tokyo".

But LDP regime and Tepco of Japan intend to dump 'nuclear waste water that they cannot dump in Tokyo' to Pacific.

-5 ( +3 / -8 )

Japanese media said is safe, so it must be safe. However the reality is.

-6 ( +16 / -22 )

@Roy Sophveason

it doesn't work that way.

Surely it worked before. Evaporation is the only acceptable solution to processing Fukushima radioactive water.

https://www.reuters.com/article/us-japan-fukushima-water/japan-considers-evaporation-storage-of-tritium-laced-fukushima-water-idUSKBN0MZ0WC20150408

The evaporation method was used after the Three Mile Island disaster

-6 ( +4 / -10 )

UN should force sanctions on Japan. This is not only a disgusting crime to humans, but planet earths environment.

-6 ( +4 / -10 )

Ban all Japanese marine exports when they do this, and it is "when" and not "if". Japan will have become the single-worst polluter of the oceans in the world, and with things we do not know the full effects of yet on marine life. And why? Because they have and continue to put profit over safety. How are we paying for it? Well, local fishers are suffering, the people around the plant have been evacuees for years, and have had to permanently settle elsewhere or else return to ghost towns, tax payers are flipping the cost for decommissioning and clean-up, oh! And the execs and people responsible are being acquitted of any wrong doing.

-7 ( +12 / -19 )

This time decision by Japan LDP regime is betrayal also to pledge that decide nothing without approval of fishery group.

"would be filtered to remove most isotopes"

Fukushima nuclear disaster waste water still remain many kinds of radioactivity such as Strontium90, Ruthenium106, Iodine129, Cesium135 after even filtering, it's never tritium only.

Fukushima waste water that cooled meltdown debris directly is different to treated water from other nuclear plants that are not broken.  

But LDP regime and Tepco named Fukushima waste water "treated water", try to deceive people inside or outside country as if dumping nuclear waste water from Fukushima is same to other nuclear plants draining.

-8 ( +3 / -11 )

Not that I necessarily agree but they might as well get it over with. Consensus has been reached in Japan among the major stakeholders in the problem and that means responsibility is diluted and every hanko-appender can be blamed together and it will go ahead anyway. They can even rope the people is as co-signatories since they have not really showed up and complained.

-12 ( +4 / -16 )

I am not sure if delaying things is gonna help anyway. What if government say they will delay it for a day. Technically they did listen to these nations urging then.

-12 ( +4 / -16 )

We all trust TEPCO, the Japanese government and some msm outlets right. The Pacific Island Nations only want to delay the dumping of radioactive waste into the Pacific Ocean not stop it.

-13 ( +1 / -14 )

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