Tag Archives: Reactor

Nuclear Agency Is Criticized as Too Close to Its Industry

Source: http://www.nytimes.com/2011/05/08/business/energy-environment/08nrc.html?_r=1&emc=eta1
By TOM ZELLER Jr., New York Times, Published: May 7, 2011

In the fall of 2007, workers at the Byron nuclear power plant in Illinois were using a wire brush to clean a badly corroded steel pipe — one in a series that circulate cooling water to essential emergency equipment — when something unexpected happened: the brush poked through.

The resulting leak caused a 12-day shutdown of the two reactors for repairs.

The plant’s owner, the Exelon Corporation, had long known that corrosion was thinning most of these pipes. But rather than fix them, it repeatedly lowered the minimum thickness it deemed safe. By the time the pipe broke, Exelon had declared that pipe walls just three-hundredths of an inch thick — less than one-tenth the original minimum thickness — would be good enough.

Though no radioactive material was released, safety experts say that if enough pipes had ruptured during a reactor accident, the result could easily have been a nuclear catastrophe at a plant just 100 miles west of Chicago.

Exelon’s risky decisions occurred under the noses of on-site inspectors from the federal Nuclear Regulatory Commission. No documented inspection of the pipes was made by anyone from the N.R.C. for at least the eight years preceding the leak, and the agency also failed to notice that Exelon kept lowering the acceptable standard, according to a subsequent investigation by the commission’s inspector general.

Exelon’s penalty? A reprimand for two low-level violations — a tepid response all too common at the N.R.C., said George A. Mulley Jr., a former investigator with the inspector general’s office who led the Byron inquiry. “They always say, ‘Oh, but nothing happened,’ ” Mr. Mulley said. “Well, sooner or later, our luck — you know, we’re going to end up rolling craps.”

Critics have long painted the commission as well-intentioned but weak and compliant, and incapable of keeping close tabs on an industry to which it remains closely tied. The concerns have greater urgency because of the crisis at the Fukushima Daiichi plant in Japan, which many experts say they believe was caused as much by lax government oversight as by a natural disaster.

The Byron pipe leak is just one recent example of the agency’s shortcomings, critics say. It has also taken nearly 30 years for the commission to get effective fireproofing installed in plants after an accident in Alabama. The N.R.C.’s decision to back down in a standoff with the operator of an Ohio plant a decade ago meant that a potentially dangerous hole went undetected for months. And the number of civil penalties paid by licensees has plummeted nearly 80 percent since the late 1990s — a reflection, critics say, of the commission’s inclination to avoid ruffling the feathers of the nuclear industry and its Washington lobbyists.

Although the agency says plants are operating more safely today than they were at the dawn of the nuclear industry, when shutdowns were common, safety experts, Congressional critics and even the agency’s own internal monitors say the N.R.C. is prone to dither when companies complain that its proposed actions would cost time or money. The promise of lucrative industry work after officials leave the commission probably doesn’t help, critics say, pointing to dozens over the years who have taken jobs with nuclear power companies and lobbying firms.

Now, as most of the country’s 104 aging reactors are applying for, and receiving, 20-year extensions from the N.R.C on their original 40-year licenses, reform advocates say a thorough review of the system is urgently needed.

The agency’s shortcomings are especially vexing because Congress created it in the mid-1970s to separate the government’s roles as safety regulator and promoter of nuclear energy — an inherent conflict that dogged its predecessor, the Atomic Energy Commission.

“It wasn’t much of a change,” said Peter A. Bradford, a former N.R.C. commissioner who now teaches at Vermont Law School. “The N.R.C. inherited the regulatory staff and adopted the rules and regulations of the A.E.C. intact.”

Mr. Bradford said the nuclear industry had implicitly or explicitly supported every nomination to the commission until Gregory B. Jaczko’s in 2005. Mr. Jaczko, who was elevated to chairman by President Obama in 2009, had previously worked for both Representative Edward J. Markey, the Massachusetts Democrat and longtime critic of the nuclear industry, and Senator Harry Reid, the Nevada Democrat and current Senate majority leader who sought to block a nuclear waste repository in his state.

Mr. Jaczko acknowledges that the agency needs to move faster on some safety issues. But he defends its record. “I certainly feel very strongly that this is an independent regulator that will make what it thinks are the right decisions when it comes to safety,” he said. “There will be people who will agree, and some people who will disagree. That’s part of the process.”

For all the agency’s shortcomings as a regulator, even the most vocal critics acknowledge that it should not be compared to the Minerals Management Service, the scandal-plagued agency that oversaw the oil and gas industry and was reorganized by Mr. Obama after the BP oil spill last year.

Still, David Lochbaum, a frequent critic of the N.R.C. who recently worked as a reactor technology instructor there, said the agency too often rolled the dice on safety. “The only difference between Byron and Fukushima is luck,” he said.

Full article at this link: http://www.nytimes.com/2011/05/08/business/energy-environment/08nrc.html?_r=1&emc=eta1

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Nuclear Adviser Quits Over Handling of Crisis

Source: http://online.wsj.com/article/SB10001424052748703567404576293201211871250.html
By WILLIAM SPOSATO, Wall Street Journal (Asia), April 30 2011

TOKYO — A special advisor to the Japanese government on radiation safety
resigned Friday, saying that he was dissatisfied with the handling of the
ongoing crisis at the Fukushima Daiichi nuclear power plant.

Toshiso Kosako, a professor at the prestigious University of Tokyo, said at
a news conference that the prime minister’s office and agencies within the
government “have ignored the laws and have only dealt with the problem at
the moment.” Holding back tears, he said this approach would only prolong
the crisis.

Following the devastating March 11 earthquake and tsunami, the Dai-ichi
nuclear power plant has become the site of the second-worst nuclear power
plant crisis in history. Three of its six reactors still pose a potential
threat as officials and plant operator Tokyo Electric Power Co. work to
bring the situation under control.

Mr. Kosako was appointed on March 16. In announcing the appointment, chief
government spokesman Yukio Edano described him as someone who
“possesses outstanding insight and expertise in the field of radiation safety.”

Mr. Kosako was one of six special advisers to the administration of Prime
Minister Naoto Kan. According to Mr. Edano’s announcement, Mr. Kosako
was to provide “information and advice to the prime minister on the ongoing
incidents as the nuclear power stations.”

But he said that in the weeks since his appointment, it was difficult to
know who was actually in charge of dealing with the situation.

Diet member Akihisa Nagashima, a senior politician within the ruling
Democratic Party said in a statement that the administration had urged Mr.
Kosako to stay on and that his departure represented a “heavy blow” to the
government. A spokesman for the prime minister’s office had no immediate
comment.

Officials and foreign experts say that the situation at the plant has now
passed its most critical stages, with a much lower threat of a large release
of radiation that could cause widespread health problems.

Write to William Sposato at william.sposato@dowjones.com

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Fukushima and Chernobyl Raise Questions about WHO’s Role

By Gustavo Capdevila, Inter-Press Service (IPS), April 27 2011
Source: http://ipsnews.net/news.asp?idnews=55403

GENEVA, Apr 27, 2011 (IPS) – The nuclear disaster in Fukushima,
Japan and the 25th anniversary of the catastrophe in the Chernobyl
nuclear power plant in Ukraine have thrown into relief contradictions
in the role played by the World Health Organisation, which civil
society organisations have spent years pointing out.

An international coalition of NGOs, IndependentWHO, says the multilateral
agency has never shown independence in its decisions or actions, in terms
of living up to its mandate of protecting the victims of radioactive contamination.

The groups blame the WHO’s alleged inactivity in this area on an
agreement it signed in 1959 with the International Atomic Energy Agency
(IAEA), an independent United Nations organisation founded to promote
“safe, secure and peaceful nuclear technologies.”

The coalition of NGOs states that the agreement makes the WHO
“subservient” to the IAEA and prevents the U.N. health agency from
“taking any initiative or action to achieve its objectives: the preservation
and the improvement of health.”

IndependentWHO
The collective’s founding members are
Enfants de Tchernobyl Bélarus,
Physicians for Social Responsibility
International Physicians for the Prevention of Nuclear War,
the People’s Health Movement,
the Commission for Independent Information and Research on Radioactivity,
Réseau Sortir du Nucléaire,
Brut de Béton Production and
ContrAtom.

The WHO should break off “that incestuous relationship” with the IAEA,
Russian-born Swiss journalist Wladimir Tchertkoff, who has produced seven
television documentaries on Chernobyl, told IPS.

But the relationship between the two agencies is unequal, because the IAEA
depends on the U.N. Security Council, while the WHO answers to the
lower-ranking Economic and Social Council (ECOSOC).

In the May 1959 agreement, the two agencies agreed to work in close
cooperation and consult each other whenever either of the two plans to
undertake a programme or activity in an area in which the other has a
substantial interest. It also establishes restrictions to safeguard the
confidentiality of certain documents.

In that framework, “the nuclear lobby has managed to get the WHO to
renounce taking care of the victims of nuclear disasters,” said Swiss
academic Jean Ziegler, currently vice president of the U.N. Human Rights
Council’s Advisory Committee.

In line with the 1959 agreement, the WHO’s position is that “when there is a
nuclear accident, we are not responsible for taking care of the victims; the
nuclear agency is the sole responsible party,” Ziegler told IPS.

He described this as an appalling situation in which thousands of people die,
when they could have been saved.

This “renews our suspicion that the nuclear lobby is well-established” here, he
said, pointing to the WHO building, outside of which the interview took place.

The latest estimate of the number of Chernobyl victims, published by the two
agencies on Sept. 5, 2005, mentions 50 deaths and 4,000 cases of cancer.

IndependentWHO calls such figures absurdly low, because they fail to take
into account the health of the children living in the contaminated areas, “where
rates of illness are at 80 percent.” The statistics also “ignore the fate of the
600,000 to 1,000,000 liquidators,” the name given to the veterans of the
Chernobyl rescue and clean-up, the coalition statements adds.

Tchertkoff pointed out that the study “Chernobyl: Consequences of the
Catastrophe for People and the Environment”, a book translated from Russian
that was published in December 2009 by the New York Academy of Sciences,
put the total number of people who died as a result of the disaster at 985,000,
between the Apr. 26, 1986 explosion of Unit 4 of the Chernobyl nuclear plant
and 2004.

According to health data cited by the book, more than 80 percent of children
in the areas of Ukraine, Belarus — the Soviet republic of Belarusssia at the time
– and Russia that were contaminated by Chernobyl were in good health prior
to the accident, while “fewer than 20 percent are well” today.

Agreement WHA 12-40

IndependentWHO says the agreement between the WHO and
the IAEA “is a major source of disinformation on the health and
environmental consequences of the accident at Chernobyl” and
that “WHO must regain its independence completely so that it
can investigate the relationship between radiation and health.”

“Here are just three examples that illustrate perfectly the way in
which the Agreement compromises the independence of WHO:

1. The IAEA is committed, in its statutes, to the promotion of the
peaceful use of the atom. It is therefore a commercial lobby
group.

2. The IAEA has put itself forward as the body responsible for
the setting of safety standards within the nuclear industry as
a whole. It is therefore both judge and jury.

3. The IAEA has no mandate nor any expertise in matters of
public health.”

Since Apr. 27, 2007, the organisations grouped in IndependentWHO have
maintained a vigil in front of the WHO building in Geneva every working day
from 8:00 AM to 6:00 PM.

The vigil, which consists of one to three activists, is calling for a revision of
the 1959 agreement with the IAEA and demanding that the WHO work
toward its objective, as outlined in the agency’s constitution: “the attainment
by all peoples of the highest possible level of health.”

But Tchertkoff was sceptical. The WHO “cannot do much because it is a
victim” of a situation that was created, he said.

With respect to the accident in Fukushima, in northeast Japan, caused by
the Mar. 11 earthquake and tsunami, “The WHO doesn’t know what to do,”
he said.

“It doesn’t have staff capable of dealing with the situation. It only has five
people, just two of whom are university graduates with no experience,”
he added.

Tchertkoff also mentioned the controversy triggered by WHO policies
during the 2009 flu pandemic, in particular with regard to the production
and distribution of flu vaccines.

Ziegler said the WHO has been “infiltrated” by the nuclear lobby and the
pharmaceutical industry.

He recalled that an independent inquiry set up by former WHO director-
general Gro Harlem Brundtland (1998-2003) found that some of the
agency’s staff had received payments from the tobacco industry while
the agency was debating the Framework Convention on Tobacco Control,
which was finally approved in 2005.

Tchertkoff believes there are two different tendencies in the WHO.

One is that if circumstances continue to deteriorate, like over the last few
weeks, it will become necessary for the WHO to once again discuss its
policy regarding nuclear radiation.

But the other group holds that a reopening of the debate would amount to
a confession “that we haven’t done anything in the past few decades,”
he said.

“A serious internal problem of this kind is lamentable at a time when we
are looking at Fukushima, Chernobyl and all of the world’s nuclear plants,
surrounded by some 410 million people living in a radius of 30 kilometres
from these danger spots,” the journalist said.

IPS, which requested an interview with WHO director of Public Health and
Environment María Neira, received no response from the WHO with regard
to these accusations.

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Fukushima Nuclear Cleanup Plans Hinge on Unknowns

Source: http://www.nytimes.com/2011/04/15/world/asia/15cleanup.html?_r=1&ref=asia

Hiroko Tabuchi, New York Times, April 14, 2011

TOKYO  Even before the troubled Fukushima Daiichi nuclear
plant has been brought under control, two conglomerates vying
for contracts in an eventual cleanup are estimating that the effort
could take 10 years — or 30.

Nuclear Company to Compensate Evacuees in Japan (April 16, 2011)

The widely divergent outlooks underscore the basic uncertainties
clouding any forecast for Fukushima. It is far from clear when the
cooling system will be restored and radiation emission halted; how
soon workers can access some parts of the plant; and how bad the
damage to the reactors, their fuel and nearby stored fuel turns out
to be. The United States Nuclear Regulatory Commission has
warned that at least one reactor’s fuel may even have leaked out
of the reactor pressure vessel.

A global team led by Hitachi said Thursday that it would take at least
three decades to return the site to what engineers refer to as a “green
field” state, meaning within legal limits of radiation for any residents.
Toshiba, Japan’s biggest supplier of nuclear reactors, said it could
take as little as 10 years.

Both companies have large nuclear-related businesses and appear
to be eager to speak about endgame possibilities for a crisis that has
heightened global public mistrust of nuclear power. Billions of dollars
are likely to be at stake in the cleanup, which could help Hitachi and
Toshiba improve their bottom lines. The two said last week that annual
profits would fall short of their forecasts because of the widespread
disruptions in production and supply chains caused by the disaster.

At a roundtable with reporters on Thursday, Toshiba’s chief executive,
Norio Sasaki, wielded an inch-thick proposal outlining the dismantlement
plan submitted to the plant’s operator, Tokyo Electric Power Company,
this month. Hitachi has presented a competing plan.

The scale and complexity of the challenge are unprecedented. No
nuclear reactor has ever been fully decommissioned in Japan, let
alone the four certain to be dismantled at Fukushima Daiichi after
being flooded with seawater to avert meltdowns and after suffering
explosions and other damage. The final fates of the two other reactors
there have not been announced, but they, too, may need to be
decommissioned.

The 1979 accident at Three Mile Island in Pennsylvania involved just
one reactor, and though there was a partial meltdown of the nuclear
fuel rods, the chamber holding them did not rupture. The cleanup there
still took 14 years and cost about $1 billion. (Two reactors that continue
to operate at the site are set to be decommissioned in 2014.)

Recovery from the 1986 disaster at Chernobyl in Ukraine, meanwhile,
is an example engineers are not eager to follow. Following explosions
and a fire that sent huge radioactive plumes into the atmosphere,
workers covered the remains of the reactor with sand and lead and
eventually entombed it with concrete to halt the release of radiation.
The concrete coffin still remains at Chernobyl, and the area is
uninhabitable.

For now, workers in Japan are still trying to stem leaks of highly
radioactive water from the plant even as they add to the flow by
continuing to pump in water — now fresh, not saltwater. They are also
racing to revive the contained cooling systems that circulate water and
do not bleed contaminants.

But serious challenges remain, including what Japan’s nuclear regulator
said Thursday were rising temperatures at one of the units, as well as
a series of strong aftershocks. Later, Hidehiko Nishiyama, the deputy
director general of Japan’s Nuclear and Industrial Safety Agency, said
the situation at the plant remained “difficult.”

Still, Toshiba’s engineers expect the plant to stabilize “in several
months,” Mr. Sasaki said, and for full-scale cooling to resume. It
would be five years before engineers would be able to open the
pressure vessels to remove the nuclear fuel, he said, and dismantling
the reactors and cleaning up radiation at the plant would take at least
another five years.

Toshiba’s team includes engineers from Westinghouse, whose majority
owner is Toshiba, and the Babcock & Wilcox Company, an energy
technology and services company that handles the disposal of
hazardous materials. The two companies helped shut down the
damaged reactor at Three Mile Island.

A Hitachi spokesman in Tokyo, Yuichi Izumisawa, said that the 10-year
projection was overly optimistic. He said that Hitachi’s engineers
expected it to take that long just to remove the nuclear fuel rods from
the plant and place them in casks to transport to a safe storage facility.

Only then can the dismantling of the plant’s structures begin, he said,
followed by the cleanup of the remaining radiation.

Hitachi, the country’s second biggest supplier of reactors, has a team
of 50 experts working on its dismantling plan. It has a joint nuclear
venture with General Electric and is also working with the American
nuclear operator Exelon and Bechtel, an engineering company.

“You basically need to dismantle the plant from the inside, and the
inside is still very radioactive,” Mr. Izumisawa said. “At Hitachi, we are
baffled over what kind of technology would allow everything to be
finished in 10 years.”

Tetsuo Matsumoto, a professor of nuclear engineering at Tokyo City
University, said that how long the decommissioning process would take
depended heavily on the state of the nuclear fuel.

“Will it still be shaped like rods? Or will it have melted and collapsed
into a big mass?” he said. “It could be 10 years or it could be 30. You
just won’t know until you open up the reactor.”

Ken Ijichi contributed reporting.

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Three Mile Island fuel storage modules at DOE facility cracking

Background:

Irradiated nuclear fuel contains hundreds of man-made radioactive
poisons for which the natural background level is zero. They fall
into three broad categories:

(1) fission products — radioactive isotopes of xenon, krypton,
iodine, cesium, tellurium, ruthenium, and many others — which
are the broken pieces of atoms that have been split or “fissioned”;

(2) activation products — radioactive isotopes of argon, cobalt,
iron, and many others — which are created when non-radioactive
materials in the reactor absorb one or two neutrons and are
transformed into radioactive elements; and

(3) transuranic elements — plutonium, neptunium, americium, curium,
and others — which are created when uranium atoms absorb one or
more neutrons and then transform themselves into new elements.

See  http://ccnr.org/hlw_chart.html  and  http://ccnr.org/hlw_graph.html

In addition to these man-made radioactive materials, there are also
huge amounts of radioactive materials created which do exist in small
amounts in nature — such as tritium (radioactive hydrogen) and
carbon-14 (radioactive carbon).  These radioactive atoms are easily
incorporated into organic molecules of all kinds, including DNA.

—–

This is the stuff that the nuclear industry wants to bury in geologic
formations in order to protect the biosphere for millions of years.

But when a reactor melts down, that radioactive junk is trapped in
the molten blobs that form.  It’s an enormous toxic mess.  Ad hoc
measures must be taken to package and move and guard these
unwieldy radioactive blobs and contain them so that they do not
leak their radioactive poisons into the environment.

At Chernobyl, where the core of the reactor melted right into the
earth, moving it has proven to be impossible.  Constructing a
containment above the site of the core melt is also impossible
because of the intense radiation levels.  An enormous structure
is being built AWAY from the reactor core melt, which will then — when
finished — be “slid” over the reactor site, enclosing the remnants of
the reactor building and all.

Already over $650 million (US) has been spent to build
this new structure, which will take the place of the crumbling
sarcophagus that was hastily erected over the molten core
following the accident 25 years ago.  Authorities are now
seeking hundreds of million more in order to complete
the task — and this is by no means a permanent solution!

Meanwhile, the remnants of the half-melted TMI core (from
32 years ago) are also presenting storage difficulties….

Gordon Edwards
================

William Freebairn, Washington (Platts), 15 April 2011
Source: http://www.platts.com/RSSFeedDetailedNews/RSSFeed/ElectricPower/6002873

The US Department of Energy facility storing melted fuel from the Three
Mile Island nuclear plant has not done enough to address crumbling
concrete modules encasing the radioactive material, the US Nuclear
Regulatory Commission said in a letter made public Friday.

The DOE facility at the Idaho National Laboratory holds the damaged fuel
from unit 2 of the Three Mile Island Plant, which, in 1979, suffered a partial
meltdown of the core, leading to the US’ worst nuclear accident.

The so-called spent fuel rubble is now contained in concrete storage
modules located at an independent storage installation owned by DOE.

The concrete modules are “showing significant cracking and degradation,”
even though they were built in 1999 to last for 50 years, NRC said in the
letter, which is dated April 7.

DOE has analyzed the structural integrity of the modules, which have
walls two feet thick, and determined that the problem is getting
progressively worse, NRC said.

Since the NRC inspection, DOE has identified funding to pay for repairs
and will begin the work this construction season, meaning from the spring
to the fall, spokeswoman Katinka Podmaniczky said in an email Friday.

“These cracks have no impact on the storage modules’ ability to safely
store spent nuclear fuel,” she said.

At the time of the inspection, it was not clear whether DOE had approved
or scheduled measures to stabilize the degradation, NRC said in the
letter. It asked DOE to provide the regulator with information about
corrective measures, a schedule for their implementation and a plan
for monitoring the effectiveness of actions taken.

The degradation of the modules was likely due to “water intrusion and
the annual thawing and freezing cycle,” NRC said in an inspection report
attached to the letter. Chunks of concrete have fallen from areas of the
modules and there are signs they are no longer water-tight, NRC said.

Cracking was first recognized in 2000 but considered to be “cosmetic,”
NRC said. In 2008, DOE recognized that continued cracking called into
question the ability of the modules to protect the fuel canisters inside
from natural phenomena and shield people from the radiation of the
fuel.

A recent study determined that protective caps should be installed,
damaged concrete replaced and a sealant applied, but those actions
have not yet been taken, the NRC inspection report said.

NRC licensed DOE’s Idaho Operations office in 1999 to store the
damaged fuel in dry shielded stainless steel canisters, which are
loaded inside the reinforced concrete modules.

The 30 dry shielded canisters at the site contain melted fuel from the
Three Mile Island-2 reactor core. That unit, located in Pennsylvania,
experienced the melting of about half the fuel in the core during an
accident. The adjacent Three Mile Island-1 continues to operate.

The NRC inspectors concluded that the storage facility continues to
meet standards, but the degradation of the modules is “a concern
that will be tracked in the future,” agency spokesman David McIntyre
said in an email.

NRC also cited DOE in the inspection report for a “deviation from a[n]
NRC commitment” because it deleted certain material from an
emergency plan.

NRC ordered the energy agency to respond within 30 days. The
deviation was minor, Podmaniczky said.

William Freebairn, william_freebairn@platts.com

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