LIES: ‘Treatment of contaminated water can remove all radioactive substances except tritium, which also exists in nature. As things stand, other radioactive substances also remain because the purification process is premised on the water being stored. In the event of this water being released into the ocean, or disposed of in another way, the tritium would of course be diluted and the other substances brought to or below allowable levels by purifying the water again.’
1. Radioactive tritium does not exist in nature.
2. Other radioactive substances remain in the radioactive water because both of their radionuclides removal systems failed to do fully the job.
3. In the event of this radioactive water being released into the ocean those radionuclides would not be “diluted’ but only scattered through the ocean, affecting all marine life and contaminating our food chain.
IAEA’s report sensible on Fukushima N-plant contaminated water disposal
November 18, 2018
An international organization has provided some sensible advice. The government and Tokyo Electric Power Company Holdings Inc. must act quickly to move ahead with decommissioning reactors at the Fukushima No. 1 nuclear power plant.
A review team of the International Atomic Energy Agency has compiled a preliminary summary report that urges a quick decision on the disposal method for the massive volume of water being stored at the power plant. The report warns that storage tanks will reach capacity in three to four years.
Groundwater enters the damaged nuclear plant buildings, where it becomes contaminated by radioactive substances. TEPCO purifies this water and stores it in tanks that stand in vast rows on the nuclear plant’s premises. There is little space available for more tanks.
The IAEA team hit the nail on the head with its concern that getting stuck on this problem could slow down the entire decommissioning process.
The review team came to Japan at the request of the Japanese government. The team is expected to objectively evaluate the current status of the decommissioning process, and to convey information about this situation to the world. The team will soon write a report containing its findings and advice, based on information including that gleaned from a visit to the site.
Given its role is to provide advice, the team’s report did not mention in detail any specific water disposal methods. However, at a press conference, the team’s leader pointed out that releasing such water into the ocean — an option under consideration by the government — is commonly done by many nuclear power facilities.
It also has been made clear that gaining the support of the Fukushima prefectural government and others will be a major precondition for any water disposal option.
Explain clearly to public
All steps need to be taken to keep the negative effects of harmful rumors about radiation to a minimum. The government and TEPCO should painstakingly continue to hold dialogue with local communities.
The review team also recommended how information about the disposal of treated water should be provided to the public.
Treatment of contaminated water can remove all radioactive substances except tritium, which also exists in nature. As things stand, other radioactive substances also remain because the purification process is premised on the water being stored. In the event of this water being released into the ocean, or disposed of in another way, the tritium would of course be diluted and the other substances brought to or below allowable levels by purifying the water again.
Distrust of the government and TEPCO has heightened because this fact has not been well-publicized.
On its website, TEPCO has posted information about the quality of water that has been treated. The review team said TEPCO should work to provide relevant information “in an easy-to-understand manner.”
Technical information delivered without proper explanations also will not be understood among the general public. Ingenuity will be required.
The decommissioning process has shifted from the emergency response immediately after the accident to a more stable situation and a phase in which work should be steadily implemented. The review team expressed awareness of this point, but also showed concern over ongoing problems, such as difficulty in removing fuel from reactor No. 3’s storage pool.
Difficult challenges lie ahead, including removing fuel debris. This will be a long process that takes 40 years. The technology and human resources development called for by the preliminary summary report must not be neglected.
IAEA urges quick plan on Fukushima radioactive water cleanup
November 18, 2018
TOKYO (AP) — Experts from the International Atomic Energy Agency urged the operator of Japan’s tsunami-wrecked Fukushima nuclear plant on Tuesday to urgently decide on a plan to dispose of massive amounts of treated but still radioactive water stored in tanks on the compound.
A 13-member IAEA team told reporters in Tokyo after a weeklong review that managing nearly 1 million tons of radioactive water is critical to the plant’s safe and sustainable decommissioning.
The IAEA team said in a preliminary report that hundreds of tanks currently used to store the water over large areas of the plant’s compound can only be a temporary solution and must be removed “urgently.”
The cores of three reactors at the plant suffered meltdowns following a massive 2011 earthquake and tsunami that devastated parts of northeastern Japan.
Radioactive water has leaked from the damaged reactors and mixed with groundwater and rainwater at the plant. The water is treated and stored in large tanks.
More than 7 ½ years since the accident, officials have yet to agree on what to do with the radioactive water. A government-commissioned panel has picked five alternatives, including the controlled release of the water into the Pacific Ocean, which nuclear experts say is the only realistic option. Fishermen and residents, however, strongly oppose the proposal.
That option faced a major setback this summer when the plant’s operator, Tokyo Electric Power Co., acknowledged that the water, which it said had been carefully treated, was not clean enough. It said the water contains cancer-causing cesium and other elements in excess of allowable limits for release into the environment.
The IAEA interim report said TEPCO could run out of space for tanks in a few years, and the water storage adds to safety risks and could hamper the decommissioning of the plant, which is already an unprecedented challenge.
It said the water problem has improved recently because of measures such as an underground frozen wall installed around the reactor buildings to keep the radioactive water from mixing with groundwater. It suggested that TEPCO could further reduce the amount of contaminated water by cutting back on the use of cooling water injected into the reactors because the temperature of the melted fuel has fallen significantly.
IAEA mission leader Christophe Xerri told reporters that it is uncertain whether all of the melted fuel can ever be successfully removed because too little is known about the damage to the cores of the three reactors.
TEPCO and government officials plan to start removing the melted fuel in 2021. Robotic probes inside the reactors have detected traces of damaged fuel but its exact location, contents and other details remain largely unknown.
“If you don’t have the information it’s very difficult to say it’s possible or not” to remove all the fuel, Xerri said.
The team’s final report from its review is expected in late January.