July
2000
Za
Zemiata
“Problems cannot
be solved at the level of awareness that created them” A. Einstein
INTRODUCTION
The
Nuclear Industry in Europe and worldwide is in terminal decline. This decline
is led by developments in North America and Western Europe – the birthplace
of the commercial nuclear power industry. Reactors are no longer being
ordered. Consequently, existing units are being operated longer and
longer, well past their original design lives. But even this desperate
and dangerous policy will not save the nuclear industry, which will be
remembered by future generations as the folly of the 20th Century. It leaves
the cumbersome heritage of the radioactive waste stockpiles, some of which
will be hazardous for many thousands of years.
spent
nuclear fuel (SNF)
Radioactive
waste is produced at each stage of the functioning of any commercial nuclear
power plant. One of the most dangerous highly radioactive waste is spent
nuclear fuel. Each normally operating nuclear power plant uses fresh fuel,
which after several years of exploitation becomes irradiated and must be
taken out of the reactor. Despite its name the “spent” fuel actually contains
long-living elements such as Plutonium – 239, Uranium – 233, Cesium – 137,
half-life of some of which is thousands of years.
A
cask with spent fuel has an inner temperature of 300-400 degrees centigrade
and a radioactivity equal to 40 nuclear bombs as the Hiroshima one.
One
of the biggest problems, which nuclear industry faces, is how to deal with
this time bomb.
approaches
for management of spent fuel
The
three basic approaches for management of irradiated nuclear fuel, according
to the International Atomic Energy Agency, are:
-
Direct
disposal, which involves steps that would place the spent fuel in a location,
such as a geological repository, under conditions that would not envisage
its later removal.
-
Reprocessing
during which fissile plutonium and uranium are extracted. Plutonium
is the main material used for the production of nuclear bombs.
-
A third
option for managing spent fuel is a deferred decision approach that involves
interim storage. The approach enables operators to monitor the stored spent
fuel continuously and to retrieve it later for either direct disposal or
reprocessing.
In
addition to the extracted plutonium and uranium, the so called reprocessing
creates a tremendous volume of radioactive waste - chemicals, equipment
and other materials involved in reprocessing, generating a volume of waste
as much as 189 times greater than that contained in the original irradiated
fuel.
transport
of spent fuel
Reprocessing
involves transportation of the spent fuel to reprocessing facilities and
in most of the cases, returning the high-level waste out of the plutonium
extraction. This transportation takes place by sea, rail, road and
air. It involves significant and unjustifiable risks to human health and
the environment. According to the statistical data of the Russian
Ministry of Atomic Power (Minatom), 43% of all nuclear accidents occurred
during transportation at different stages of the nuclear fuel cycle. The
hazards posed by nuclear transportation are yet another reason why communities,
environmentalists and politicians around the world oppose nuclear power
and reprocessing.
accidents
and disasters
Some
of the most serious accidents that occurred at reprocessing facilities
and during transportation are:
1957
– “Mayak” (Chelyabinsk, South Ural, Soviet Union) – led to a large off-site
release. The region is probably the most contaminated in the world.
Thousands of people were exposed to severe radiation and died as a consequence.
1997
– Germany/France – A train carrying three casks of spent nuclear fuel derailed
close to the French - German border. Even these two mostly developed West
European countries were not able to prevent such a hazardous event.
30
September 1999 – Japan – Accident in the Tokaimura reprocessing facility,
110 km northeast of Tokyo. Japan’s worst nuclear accident led to the off-site
release of radioactive material. Two workers have died so far, more are
expected over the next few years.
consequences
on human health and environment
-
The explosion
in the pool, where the high radioactive waste was stored at the Chelyabinsk
reprocessing facility “Mayak” in 1957, caused a radioactive contamination
several times higher than the one in Chernobyl. This region suffered
two other nuclear accidents connected with the inappropriate waste storage
at the facility. More than 270 thousand people within the 150 km zone were
affected, but only 0,5 % of them were evacuated. Both, the Soviet and the
US secret services, kept the accident secret for years, fearing harm to
the nuclear industry.
-
A study
in 1997 funded by the British Department of Health found plutonium in the
teeth of children throughout England, Northern Ireland, Scotland and Wales.
The study shows that radioactive discharges from the Sellafield plutonium-reprocessing
factory have contaminated people throughout the region. The research
involved the evaluation of 3,300 teeth, which had been extracted from adolescent
children in the U.K. The levels of contamination were directly dependent
on the distance the children lived from the Sellafield plutonium reprocessing
plant on the Irish Sea coast of Cumbria.
-
The revelation
about pollution from Sellafield came in the midst of growing concern in
France about the La Hague plutonium factory, which annually pumps some
230 million liters of nuclear waste into the Atlantic. Another study
identified a leukemia cluster among children living near the La Hague reprocessing
plant. In addition, a sampling by Greenpeace revealed that the discharges
from the state-controlled plant have turned the seabed into a nuclear waste
dump. The sediment sample analysis showed that stones covering the ocean
floor were so radioactive that EC regulations would require they be treated
as controlled nuclear waste.
general
trends in the European Union nuclear policy
With
no new reactor orders and none on the horizon, EU’s nuclear industry is
in terminal decline. In the 15 Member States of the EU, seven do
not have nuclear power. Either they have phased out their programs,
such as Italy, or abandoned part built reactors as with Austria, Greece
and Portugal, or never built reactors as with Ireland, Luxembourg and Denmark.
In a second group are countries that have agreed to end their nuclear programs.
In Sweden there was a referendum on closing all nuclear power plants in
1980. The first reactor at Barseback was ordered closed in
November 1999. In the Netherlands, the Dodewaard reactor was closed
in 1997 and the country’s final reactor is scheduled for closure in 2004.
While in Germany all nuclear power plants in the former East Germany (Greiswald
and Stendal) have been closed and the government has decided on a closure
schedule for all other reactors. Many other countries have moratoriums
against new construction. In Great Britain, in 1995, the proposal
for the constructions of new nuclear reactors was cancelled. In Finland,
the Finnish Parliament voted against the government’s proposal to build
a fifth reactor in September 1993. In Spain in 1991 a moratorium
was declared, affecting the existing 5 power plants. In Belgium the
Parliament also decided to phase out its existing plants and not to build
any new ones. Leaders of Belgium’s new three-party (Liberal, Socialist
and Green) coalition government are to introduce a nuclear energy phase-out
policy, setting a maximum forty-year lifetime of the country’s seven reactors.
Under this plan, the phase-out would be completed in 2025.
Finally,
in France, often regarded as the fundamental supporter of nuclear power,
the last reactor was planned to be completed in 1999 and there were no
more reactors ordered. The Supherphenix reactor, the pride of the
nuclear industry, has been closed and its decommissioning has begun. Thus
the abandonment of Europe’s remaining Fast Breeder program was commenced.
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