Nuke plant begins pumping radioactive water - BusinessWeek

By MARI YAMAGUCHI and YURI KAGEYAMA

TOKYO

The operator of the nuclear plant crippled the Japan began to pump highly radioactive water in the basement of turbine of a reactor building of a storage area fortune - a key step in the stabilization of the complex.

Remove the 25,000 tons of contaminated water that collected in the basement of unit 2 of Fukushima Dai-ichi will help workers access for reactors to restore vital cooling systems which were eliminated on March 11 tsunami which left more than 27 000 people dead or missing.

Step Tuesday was one of the many in a long process to resolve the crisis. Tokyo Electric Power Co. in a roadmap exit over the weekend that would take up to nine months to reach a cold stop plants.

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Japan: Leak of Radioactive water arrested

Expert speaks water radioactive effectsNEW: drop of water levels of sea suddenly in sea water new trials NEW: nitrogen being injected into unit 1 due to leakage of buildupOne of hydrogen from highly radioactive water, unit No. 2, Ocean Pacific was stoppedBut one official said, "we cannot be optimistic, because we have been able to connect it.

Tokyo (cnn) - iodine radioactive in seawater around the nuclear Central Fukushima Daiichi fell sharply even before that workers connected to a water leak would be its crippled no. 2 reactor, owner of the factory said Wednesday night.

Stop the highly radioactive water flows into the Pacific Ocean has been a win key for workers who have struggled to keep reactors for the plant damaged by the earthquake of overheating for almost four weeks. But the Tokyo Electric Power Co., and a senior Japanese official warned that the fight is far from over.

Concentrations of iodine 131 had been as high as 7.5 million times standards in water directly behind the factory after the leak was discovered Saturday. They had dropped below 4% of this amount in the 24 hours before the leak had been cut off on Wednesday morning, according to figures released by Tokyo Electric.

The level remained 280 000 times higher than the legal limit, but these concentrations were significantly dropping as the water flowed in the Pacific. Levels of caesium-137 mingle were significantly but remains 61 000 times the legal standard, according to the Tokyo Electric water sampling data.

Samples of checkpoint 20 kilometres (12.5 km) southeast of the plant levels of iodine 131 low levels at 1.5 legal times, with no reading of cesium.

Said Japanese authorities believe that the water leaking was part of 8 metric tons (2,100 gallons) per hour pumping in the No. 2, one of the three reactor that suffered damage to the heart after the severe earthquake that struck the North of the Japan on March 11. The water has been leaks in the basement of the plant of turbine unit, carrying with it the radioactive particles which are the by-product of nuclear reactors.

Until Wednesday, the fluid is cast in the sea of a shaft concrete cracked near the turbine plant water intake. Workers managed to use a polymer nicknamed silica based "liquid glass" seal of the breach on Wednesday morning, but top spokesman for the Japanese Government on the crisis said responsible Government and utilities other problems.

We cannot be optimistic because we have been able to connect it
-Secretary General of the Government of Japan Yukio Edano

"Is it completely stopped?" Y all the other areas where the (radioactive) water is published? "the Secretary General of Government Yukio Edano, the spokesman said. "We cannot be optimistic, because we have been able to plug it."

Hidehiko Nishiyama and nuclear safety agency said Japanese industrial water now "can lead to leaks more somewhere else."

Tokyo Electric started non-flammable pumping of nitrogen into the primary containment reactor No. 1 end vessel Wednesday in what it says, it was a precautionary measure to counter a possible accumulation of hydrogen.

"The possibility of an explosion of hydrogen is extremely low", the company announced Wednesday night. "But more hydrogen may eventually develop in the containment vessel."

The accumulation of hydrogen is a symptom of overheating of the fuel rods and can cause explosions as spectacular explosions which blew the roofs off buildings in reactor No. 1 and no. 3 days after the earthquake on March 11. But the Tokyo Electric said that he did not believe that an explosion was imminent.

The radioactive nuclei of units 1-3 were damaged when the tsunami that followed the earthquake flooded plant, knocking on the power of its cooling systems and deactivation of the emergency generator to restore electricity. Engineers have responded by pumping water in the outside reactors to stave off a feared collapse, but they are now struggling with what to do with thousands of tons of contaminated fluids now.

Since Monday evening, the plant less radioactive discharge around 10,000 tonnes of water in the ocean, in large part to the place in a tank of waste for supercharged coolant leaking reactor No. 2.

"Currently, they are not systems implemented at their disposal for the treatment of liquid waste of FDR, and they are generating waste liquids rad at a rate of approximately 400 000 litres per day," said Michael Friedlander, a plant operator former nuclear power. "Therefore, without a doubt, if they are put in place systems to manage that, they will have to continue dumping water in the ocean.".

Tokyo Electric had released about three-quarters of the water - also from the subdrains below reactors 5 and 6 - by Wednesday evening and had reduced its estimate of what has been the subject of dumping of the treatment facility. But the discharge, the Japanese officials called an emergency measure attracted protests from neighbours of South Korea and angry fishermen in the country.

Edano said Wednesday that the move was "inevitable" and that it would reduce the harm to the environment. But he told journalists, "we must have reported (more information) for people who may be concerned, in particular for neighbouring countries".

"It was a measure to prevent more serious marine contamination, but we need to explain the reasoning better,"he says."

Members of the association of the Japan fishing have expressed their anger in a Wednesday morning meetings with representatives of Tokyo Electric, complaining that they had argued against the first and that he did not say that later that the process will begin. Edano, said the Japanese Government plans "allowance" to give a more immediate impetus to fishermen, advance a more final payment plan which can be established in the future.

Experts have said that probable releases pose risks to health in the long term for human or marine life. It also helps that most of the radiatioactive detected particles are iodine-131, which lost half of its radiation every eight days.

Discharge of emergency amounting to approximately five swimming pools, compared to "about 300 trillion pools" that meet the Pacific Ocean, said Timothy Jorgensen, President of the Security Commission of radiation at Georgetown University Medical Center.

"Hope that the ocean turbulence and currents is quickly dispersed it so that it gets very dilute concentrations relatively quickly."

After a tumultuous weeks, utility and Government officials have described conditions recently in the reactors and spent nuclear fuel as generally stable pools. Levels of radiation airborne in the vicinity and later, at the same time, have been constant decline.

Yet, the existence of large quantities of radioactive water collected around the installation suggests that there may be other leaks - and other problems. Hiroo Saso, Susan Olson and Tsukushi Ikeda contributed to this report by CNN.

View the original article here

Japan: Leak of Radioactive water arrested

反序列化操作 "translate" 的响应消息的正文时出现错误。读取 XML 数据时，超出最大字符串内容长度配额 (8192) 。通过更改在创建 XML 读取器时所使用的 XmlDictionaryReaderQuotas 对象的 MaxStringContentLength 属性，可增加此配额。 第 1 行，位置为 9130。
Expert talks radioactive water effectsNEW: A top Japan's fishery group claims Tokyo Electric ignored radiation concernsOne leak of highly radioactive water, from unit No.. 2, into the Pacific Ocean has been stoppedBut an official says, "we cannot be optimistic, just because we were able to plug this one" Local fishermen could get short-term payments, on top of long-term compensation

Tokyo (CNN) - Workers scored a key victory Wednesday in their struggle to gain the upper hand in the weeks-long crisis at the Fukishima Daiichi nuclear power facility, though a top Japanese official cautioned that the fight was far from over.

At daybreak, authorities with the Tokyo Electric Power Company noticed that water was no longer gushing into the Pacific Ocean from the turbine building of the No. 2 reactor, one of six operated by the utility at its plant..

Radiation levels in the water tested 7.5 million times the legal limit on Saturday. On Tuesday, it was still 5 million times above the norm.

An initial attempt to for concrete to fill up the 20-centimeter (8-inch) crack, through which this water was gushing, failed. And there were immediate indications that the injection Sunday of no. a silica-based polymer dubbed "liquid glass" worked either - until Wednesday morning.

The apparent success in plugging up the cracked concrete shaft means that, as of Wednesday afternoon, there were no. known major radioactive emissions into the air, water or ground.

Still, Japanese Chief Cabinet Secretary Yukio Edano soon thereafter told reporters that the crisis - which has been marked by leaks, explosions and apologies since the March 11 earthquake and tsunami knocked out the systems used to cool the plant's nuclear fuel - is not over.

"is it completely stopped?" "Are there any other areas where (radioactive) water is being released?" Edano said. "we cannot be optimistic, just because we were able to plug this one."

We cannot be optimistic just because we were able to plug this one
-Japanese Chief Cabinet Secretary Yukio Edano

Hidehiko Nishiyama, an official with Japan's nuclear and industrial safety agency, said Wednesday that authorities are aware that other problems could arise, especially as excess water may still be flooding the No. 2 unit's turbine building basement.

"(We) are aware that water build-up may lead to more leakage somewhere else," he said.

Meanwhile, the same official said that almost all of the roughly 10,000 tons of radioactive water from the plant's waste water treatment facility had been dumped into the Pacific Ocean as of noon Wednesday.

This was done to make room in the waste water building for the much more radioactive water that will be pumped from in and around the No.. 2 unit.

Edano explained that it was a trade-off, with reasoning that dumping that water authorities, on the whole, had 1: 200, 000ths the amount of radiation, "voir" and was a way to minimize harm to the environment.

Edano conceded that authorities did not a good enough job explaining the plan - announced and begun Monday - to toss a total of 11,500 tons (including some from in and around the Nos. 5 and 6 units) into the Pacific Ocean.

Officials in nearby countries, as well as in Japan itself, "have pointed out that we have not been fully reporting," he said Wednesday.

"we should have reported (more information) to the people who may be concerned, especially to the neighboring countries," Edano said, amid reports from South Korean media that officials in Seoul were among those upset.

"It was a measure to prevent more serious marine contamination, but we needed to explain the reasoning better."

Local fishermen were among those riled by the deliberate release of toxic materials into the sea, potentially adding to levels of radiation measured several hundred-thousand times the legal limit at monitoring posts a few dozen meters from the nuclear facility.

Members of Japan's fishery association voiced their displeasure in a Wednesday morning meeting with Tokyo Electric officials. The fishing industry trade group's officials claimed they felt totally ignored after they asked the utility not to dump radioactive water into the sea – only to find out, hours later, the process began.

Moreover, the association called out Tokyo Electric for the company's previous claims that nuclear power is safe and that such accidents would never happen.

Fishermen's angst has intensified with the discovery, announced Tuesday, of abnormally high levels of radioactive iodine "in one sample of fresh fish." This led Japanese authorities to regulate the radiation in seafood for the first time.

Edano acknowledged on Wednesday the difficulties facing the fishing industry and the need to keep them abreast of major developments that might affect the safety, and quality of seafood.

The Japanese government is considering 'provisional compensation' to give a more immediate boost to fishermen, ahead of a more final payment plan that may be established in the future.

Some farmers, too, are expected to get pay-outs following the imposition of restrictions of certain produce and milk due to radiation concerns tied to the nuclear crisis.

The concerns notwithstanding, experts said the release of radiation in seawater - given the current plan, and particularly if there are no further leaks of the most toxic substances - likely won't pose any long-term health risks to humans or sea life. It also helps that most of the radiation detected is iodine-131, which loses half its radiation every eight days.

The dump of the 11,500 tons of radioactive water equates to about five swimming pools full, compared to "about 300 trillion swimming pools of water" that fill the Pacific Ocean, said Timothy Jorgensen, chairman of the radiation safety committee at Georgetown University Medical Center.

"So debate the churning of the ocean and the currents will quickly disperse this so that it gets to very dilute concentrations relatively quickly."

After a tumultuous first few weeks, utility and government officials have described conditions recently in the plant's reactors and spent nuclear fuel pools as generally stable. Levels of airborne radiation nearby and further away, meanwhile, steadily have been declining.

Still, the existence of significant amounts of collected radioactive water around the facility suggests that there may be other leaks - and other problems. And there's still a big issue in that workers are still injecting massive amounts of water in order to keep nuclear fuel cool.

"Maintaining the cooling by water is almost impossible, and that is just creating more radiation exposure and contaminating more water, the soil and the atmosphere," Tesunari Iida, a former nuclear engineer, said Tuesday.

The Japanese energy industry analyst said it is important that authorities, as soon as possible, look well beyond plugging the latest leak or transferring contaminated water from one place to another. That means figuring out a feasible, effective way to make sure that the nuclear fuel still at the Fukushima Daiichi plant is never a threat again.

"these kind of ad hoc solutions will soon dead end." "We need more complete solutions," said Iida, now a critic of the nuclear power industry. "We need to think about an exit strategy - using a tomb with zinc or tin gold slurry mixed with sand or any other sort of means to cool down and contain the reactors."CNN's Whitney Hurst, Matt Smith and Kyung Lah and journalist Hiroo Saso contributed to this report.

View the original article here

Japan: Leak of Radioactive water arrested

反序列化操作 "translate" 的响应消息的正文时出现错误。读取 XML 数据时，超出最大字符串内容长度配额 (8192) 。通过更改在创建 XML 读取器时所使用的 XmlDictionaryReaderQuotas 对象的 MaxStringContentLength 属性，可增加此配额。 第 1 行，位置为 9130。
Expert talks radioactive water effectsNEW: A top Japan's fishery group claims Tokyo Electric ignored radiation concernsOne leak of highly radioactive water, from unit No.. 2, into the Pacific Ocean has been stoppedBut an official says, "we cannot be optimistic, just because we were able to plug this one" Local fishermen could get short-term payments, on top of long-term compensation

Tokyo (CNN) - Workers scored a key victory Wednesday in their struggle to gain the upper hand in the weeks-long crisis at the Fukishima Daiichi nuclear power facility, though a top Japanese official cautioned that the fight was far from over.

At daybreak, authorities with the Tokyo Electric Power Company noticed that water was no longer gushing into the Pacific Ocean from the turbine building of the No. 2 reactor, one of six operated by the utility at its plant..

Radiation levels in the water tested 7.5 million times the legal limit on Saturday. On Tuesday, it was still 5 million times above the norm.

An initial attempt to for concrete to fill up the 20-centimeter (8-inch) crack, through which this water was gushing, failed. And there were immediate indications that the injection Sunday of no. a silica-based polymer dubbed "liquid glass" worked either - until Wednesday morning.

The apparent success in plugging up the cracked concrete shaft means that, as of Wednesday afternoon, there were no. known major radioactive emissions into the air, water or ground.

Still, Japanese Chief Cabinet Secretary Yukio Edano soon thereafter told reporters that the crisis - which has been marked by leaks, explosions and apologies since the March 11 earthquake and tsunami knocked out the systems used to cool the plant's nuclear fuel - is not over.

"is it completely stopped?" "Are there any other areas where (radioactive) water is being released?" Edano said. "we cannot be optimistic, just because we were able to plug this one."

We cannot be optimistic just because we were able to plug this one
-Japanese Chief Cabinet Secretary Yukio Edano

Hidehiko Nishiyama, an official with Japan's nuclear and industrial safety agency, said Wednesday that authorities are aware that other problems could arise, especially as excess water may still be flooding the No. 2 unit's turbine building basement.

"(We) are aware that water build-up may lead to more leakage somewhere else," he said.

Meanwhile, the same official said that almost all of the roughly 10,000 tons of radioactive water from the plant's waste water treatment facility had been dumped into the Pacific Ocean as of noon Wednesday.

This was done to make room in the waste water building for the much more radioactive water that will be pumped from in and around the No.. 2 unit.

Edano explained that it was a trade-off, with reasoning that dumping that water authorities, on the whole, had 1: 200, 000ths the amount of radiation, "voir" and was a way to minimize harm to the environment.

Edano conceded that authorities did not a good enough job explaining the plan - announced and begun Monday - to toss a total of 11,500 tons (including some from in and around the Nos. 5 and 6 units) into the Pacific Ocean.

Officials in nearby countries, as well as in Japan itself, "have pointed out that we have not been fully reporting," he said Wednesday.

"we should have reported (more information) to the people who may be concerned, especially to the neighboring countries," Edano said, amid reports from South Korean media that officials in Seoul were among those upset.

"It was a measure to prevent more serious marine contamination, but we needed to explain the reasoning better."

Local fishermen were among those riled by the deliberate release of toxic materials into the sea, potentially adding to levels of radiation measured several hundred-thousand times the legal limit at monitoring posts a few dozen meters from the nuclear facility.

Members of Japan's fishery association voiced their displeasure in a Wednesday morning meeting with Tokyo Electric officials. The fishing industry trade group's officials claimed they felt totally ignored after they asked the utility not to dump radioactive water into the sea – only to find out, hours later, the process began.

Moreover, the association called out Tokyo Electric for the company's previous claims that nuclear power is safe and that such accidents would never happen.

Fishermen's angst has intensified with the discovery, announced Tuesday, of abnormally high levels of radioactive iodine "in one sample of fresh fish." This led Japanese authorities to regulate the radiation in seafood for the first time.

Edano acknowledged on Wednesday the difficulties facing the fishing industry and the need to keep them abreast of major developments that might affect the safety, and quality of seafood.

The Japanese government is considering 'provisional compensation' to give a more immediate boost to fishermen, ahead of a more final payment plan that may be established in the future.

Some farmers, too, are expected to get pay-outs following the imposition of restrictions of certain produce and milk due to radiation concerns tied to the nuclear crisis.

The concerns notwithstanding, experts said the release of radiation in seawater - given the current plan, and particularly if there are no further leaks of the most toxic substances - likely won't pose any long-term health risks to humans or sea life. It also helps that most of the radiation detected is iodine-131, which loses half its radiation every eight days.

The dump of the 11,500 tons of radioactive water equates to about five swimming pools full, compared to "about 300 trillion swimming pools of water" that fill the Pacific Ocean, said Timothy Jorgensen, chairman of the radiation safety committee at Georgetown University Medical Center.

"So debate the churning of the ocean and the currents will quickly disperse this so that it gets to very dilute concentrations relatively quickly."

After a tumultuous first few weeks, utility and government officials have described conditions recently in the plant's reactors and spent nuclear fuel pools as generally stable. Levels of airborne radiation nearby and further away, meanwhile, steadily have been declining.

Still, the existence of significant amounts of collected radioactive water around the facility suggests that there may be other leaks - and other problems. And there's still a big issue in that workers are still injecting massive amounts of water in order to keep nuclear fuel cool.

"Maintaining the cooling by water is almost impossible, and that is just creating more radiation exposure and contaminating more water, the soil and the atmosphere," Tesunari Iida, a former nuclear engineer, said Tuesday.

The Japanese energy industry analyst said it is important that authorities, as soon as possible, look well beyond plugging the latest leak or transferring contaminated water from one place to another. That means figuring out a feasible, effective way to make sure that the nuclear fuel still at the Fukushima Daiichi plant is never a threat again.

"these kind of ad hoc solutions will soon dead end." "We need more complete solutions," said Iida, now a critic of the nuclear power industry. "We need to think about an exit strategy - using a tomb with zinc or tin gold slurry mixed with sand or any other sort of means to cool down and contain the reactors."CNN's Whitney Hurst, Matt Smith and Kyung Lah and journalist Hiroo Saso contributed to this report.

View the original article here

Japan: Leak of Radioactive water arrested

反序列化操作 "translate" 的响应消息的正文时出现错误。读取 XML 数据时，超出最大字符串内容长度配额 (8192) 。通过更改在创建 XML 读取器时所使用的 XmlDictionaryReaderQuotas 对象的 MaxStringContentLength 属性，可增加此配额。 第 1 行，位置为 9130。
Expert talks radioactive water effectsNEW: A top Japan's fishery group claims Tokyo Electric ignored radiation concernsOne leak of highly radioactive water, from unit No.. 2, into the Pacific Ocean has been stoppedBut an official says, "we cannot be optimistic, just because we were able to plug this one" Local fishermen could get short-term payments, on top of long-term compensation

Tokyo (CNN) - Workers scored a key victory Wednesday in their struggle to gain the upper hand in the weeks-long crisis at the Fukishima Daiichi nuclear power facility, though a top Japanese official cautioned that the fight was far from over.

At daybreak, authorities with the Tokyo Electric Power Company noticed that water was no longer gushing into the Pacific Ocean from the turbine building of the No. 2 reactor, one of six operated by the utility at its plant..

Radiation levels in the water tested 7.5 million times the legal limit on Saturday. On Tuesday, it was still 5 million times above the norm.

An initial attempt to for concrete to fill up the 20-centimeter (8-inch) crack, through which this water was gushing, failed. And there were immediate indications that the injection Sunday of no. a silica-based polymer dubbed "liquid glass" worked either - until Wednesday morning.

The apparent success in plugging up the cracked concrete shaft means that, as of Wednesday afternoon, there were no. known major radioactive emissions into the air, water or ground.

Still, Japanese Chief Cabinet Secretary Yukio Edano soon thereafter told reporters that the crisis - which has been marked by leaks, explosions and apologies since the March 11 earthquake and tsunami knocked out the systems used to cool the plant's nuclear fuel - is not over.

"is it completely stopped?" "Are there any other areas where (radioactive) water is being released?" Edano said. "we cannot be optimistic, just because we were able to plug this one."

We cannot be optimistic just because we were able to plug this one
-Japanese Chief Cabinet Secretary Yukio Edano

Hidehiko Nishiyama, an official with Japan's nuclear and industrial safety agency, said Wednesday that authorities are aware that other problems could arise, especially as excess water may still be flooding the No. 2 unit's turbine building basement.

"(We) are aware that water build-up may lead to more leakage somewhere else," he said.

Meanwhile, the same official said that almost all of the roughly 10,000 tons of radioactive water from the plant's waste water treatment facility had been dumped into the Pacific Ocean as of noon Wednesday.

This was done to make room in the waste water building for the much more radioactive water that will be pumped from in and around the No.. 2 unit.

Edano explained that it was a trade-off, with reasoning that dumping that water authorities, on the whole, had 1: 200, 000ths the amount of radiation, "voir" and was a way to minimize harm to the environment.

Edano conceded that authorities did not a good enough job explaining the plan - announced and begun Monday - to toss a total of 11,500 tons (including some from in and around the Nos. 5 and 6 units) into the Pacific Ocean.

Officials in nearby countries, as well as in Japan itself, "have pointed out that we have not been fully reporting," he said Wednesday.

"we should have reported (more information) to the people who may be concerned, especially to the neighboring countries," Edano said, amid reports from South Korean media that officials in Seoul were among those upset.

"It was a measure to prevent more serious marine contamination, but we needed to explain the reasoning better."

Local fishermen were among those riled by the deliberate release of toxic materials into the sea, potentially adding to levels of radiation measured several hundred-thousand times the legal limit at monitoring posts a few dozen meters from the nuclear facility.

Members of Japan's fishery association voiced their displeasure in a Wednesday morning meeting with Tokyo Electric officials. The fishing industry trade group's officials claimed they felt totally ignored after they asked the utility not to dump radioactive water into the sea – only to find out, hours later, the process began.

Moreover, the association called out Tokyo Electric for the company's previous claims that nuclear power is safe and that such accidents would never happen.

Fishermen's angst has intensified with the discovery, announced Tuesday, of abnormally high levels of radioactive iodine "in one sample of fresh fish." This led Japanese authorities to regulate the radiation in seafood for the first time.

Edano acknowledged on Wednesday the difficulties facing the fishing industry and the need to keep them abreast of major developments that might affect the safety, and quality of seafood.

The Japanese government is considering 'provisional compensation' to give a more immediate boost to fishermen, ahead of a more final payment plan that may be established in the future.

Some farmers, too, are expected to get pay-outs following the imposition of restrictions of certain produce and milk due to radiation concerns tied to the nuclear crisis.

The concerns notwithstanding, experts said the release of radiation in seawater - given the current plan, and particularly if there are no further leaks of the most toxic substances - likely won't pose any long-term health risks to humans or sea life. It also helps that most of the radiation detected is iodine-131, which loses half its radiation every eight days.

The dump of the 11,500 tons of radioactive water equates to about five swimming pools full, compared to "about 300 trillion swimming pools of water" that fill the Pacific Ocean, said Timothy Jorgensen, chairman of the radiation safety committee at Georgetown University Medical Center.

"So debate the churning of the ocean and the currents will quickly disperse this so that it gets to very dilute concentrations relatively quickly."

After a tumultuous first few weeks, utility and government officials have described conditions recently in the plant's reactors and spent nuclear fuel pools as generally stable. Levels of airborne radiation nearby and further away, meanwhile, steadily have been declining.

Still, the existence of significant amounts of collected radioactive water around the facility suggests that there may be other leaks - and other problems. And there's still a big issue in that workers are still injecting massive amounts of water in order to keep nuclear fuel cool.

"Maintaining the cooling by water is almost impossible, and that is just creating more radiation exposure and contaminating more water, the soil and the atmosphere," Tesunari Iida, a former nuclear engineer, said Tuesday.

The Japanese energy industry analyst said it is important that authorities, as soon as possible, look well beyond plugging the latest leak or transferring contaminated water from one place to another. That means figuring out a feasible, effective way to make sure that the nuclear fuel still at the Fukushima Daiichi plant is never a threat again.

"these kind of ad hoc solutions will soon dead end." "We need more complete solutions," said Iida, now a critic of the nuclear power industry. "We need to think about an exit strategy - using a tomb with zinc or tin gold slurry mixed with sand or any other sort of means to cool down and contain the reactors."CNN's Whitney Hurst, Matt Smith and Kyung Lah and journalist Hiroo Saso contributed to this report.

View the original article here