NUCLEAR WASTE
The Columbia Generating Station nuclear
reactor (formerly WPPSS Nuclear Project 2) produces large quantities of high-level radioactive
waste, with no disposal site. Over three million pounds
of high-level radioactive waste has been generated by the
CGS nuclear plant since it began operation in 1984. All of
it is stored on site at Hanford, and it is roughly equal in
combined radioactivity to the remaining US Department of
Energy defense waste generated by Cold War nuclear weapons
manufacturing there. Despite years of study, no repository
for this high-level radioactive waste, which must be kept
out of the environment for hundreds of thousands of years,
has been established by the federal government.
Risks of geologic disposal of weapons plutonium
(While not directly addressed to waste from power reactors,
it discusses pertinent issues.)
The Waste Isolation Pilot Project's
mission now extends far beyond its original role as a
demonstration project. As the sole US site for the disposal
of actinide wastes (referring to the class of heavy,
radioactive elements including uranium and plutonium), it is
now slated as the permanent disposal site for the 34 metric
tons of excess weapons plutonium covered by the now defunct
US-Russia plutonium disposal agreement. This is a major
shift from WIPP’s original design basis, and has introduced
new socio-technical challenges to the safe, secure, and
effective operation of the repository—and, therefore, to the
plutonium stockpile reduction mission to which it is now
intimately tied.
A body of work on “normal accident theory” has developed in
order to explain why the design of complex safety systems
can in fact make accidents more likely: “We load our complex
systems with safety devices in the form of buffers,
redundancies, circuit breakers, alarms, bells, and
whistles…In complex and tightly coupled systems, however,
these redundant safety devices are not independent: The
alarm rattles the bell; the bell shatters the whistle; the
whistle explodes; and suddenly the whole system collapses.”
In fact, these dynamics have already been observed at WIPP.
In 2014, one of the waste drums emplaced in the repository
exploded, releasing radioactive material that made its way
to the surface. It was later determined that this accident
was caused by the addition of new materials to the
repository meant to enhance safety (DOE 2014). An earlier
safety review process led to a directive that, when
packaging certain liquid wastes for disposal at WIPP,
absorbent materials should be added to the drums to absorb
that liquid. The subsequent mixing of plutonium-contaminated
nitrate salts with a wheat-based kitty litter later resulted
in a predictable (although, at the time, unpredicted)
chemical reaction between the two, causing the drum in which
they were packaged to burst. When considering the behavior
of magnesium oxide in the complex geochemical environment of
a repository pierced by a borehole and infiltrated by
groundwater, this should be taken as a cautionary tale.
By Cameron Tracy, Bulletin of the Atomic Scientists,
January 13, 2025
British nuclear waste plant leaking 2,100 liters of contaminated
water a day At that rate, it would take just over
three years to fill an Olympic-sized swimming pool. A
glimpse of our future? The Telegraph (UK), October
22, 2024
SOS - The
San Onofre Syndrome: Nuclear Power's Legacy
(movie)
Filmed over 12 years, SOS dramatically chronicles how
Southern California residents came together to force the
shutdown of an aging nuclear power plant only to be
confronted by an alarming reality: tons of nuclear waste
left near a popular beach, only 100 feet from the rising
sea, that — with radioactivity lasting millions of years —
menaces present and future generations. Interview
with Mary Beth Brangan, producer and co-director of SOS
about the making of the film and its message. June 2024
Nuclear waste from small modular nuclear reactors The low-, intermediate-, and high-level waste stream of SMNRs
will produce more voluminous and chemically/physically
reactive waste than light water reactors, which will impact
options for the management and disposal of this waste. The
intrinsically higher neutron leakage associated with SMNRs
suggests that most designs are inferior to LWRs with respect
to the generation, management, and final disposal of key
radionuclides in nuclear waste. By Lindsay Krall, Allison Macfarlane, and Rodney
Ewing, Proceedings of the National Academy of Sciences
(US), May 31, 2022
Stanford-led research finds small modular
reactors will exacerbate challenges of highly radioactive
nuclear waste
Small modular nuclear reactors, long touted as the future of nuclear
energy, will actually generate more radioactive waste than
conventional nuclear power reactors, according to research
from Stanford and the University of British Columbia.
Stanford News, May 30, 2022 [Summary]
Complete text here
A Critical Analysis of the Nuclear Waste Consequences for
Small Modular Nuclear Reactors
Small Modular Nuclear Reactors (nuclear
reactors with electric capacities less than 300 MW)
have received support on the
pretense that their development will reduce the mass and radiotoxicity of commercially generated nuclear waste.
By analyzing the published design specifications
for water-, sodium-, and molten salt-cooled SMNRs, I here
characterize their notional, high-level waste streams in
terms of decay heat, radiochemistry, and fissile isotope
concentration, each of which have implications for geologic
repository design and long-term safety. Volumes of low- and
intermediate-level decommissioning waste, in the form of
reactor components, coolants, and moderators, have also been
estimated.
* The results show that SMNRs will not reduce the
size of a geologic repository for spent nuclear fuel, nor
the associated future dose rates.
* Rather, SMNRs are poised to
discharge spent fuel with relatively high concentrations of
fissile material, which may pose re-criticality risks in a
geologic repository.
* Furthermore, SMNRs entail increased volumes of decommissioning waste, as compared to a
standard 1100 MW,
water-cooled reactor.
Hour-long video presentation By Dr. Lindsay Krall,
Stanford University, June 4, 2020
Radioactive waste from Three Mile Island
sits in unlined trenches at Hanford
Hanford facilities
with massive amounts of radiation could cause large scale
catastrophic releases in an earthquake. By Gerald Pollet,
Heart of America Northwest, April 23, 2020
The Staggering Timescales of Nuclear Waste Disposal
Prospects for long-term storage. By Christine
Ro, Forbes, November 26, 2019
The worst accidental release of nuclear waste in US history
In 1979, just 14 weeks after the Three Mile
Island reactor accident, 90 million gallons of liquid
nuclear waste, and 1100 tons of radioactive solid waste,
broke through a dam at the Church Rock uranium mine and mill
facility in New Mexico. Beyond Nuclear International,
July 16, 2018
The Downside of
High Burnup Fuel The storage risks of
high-burnup nuclear waste. By Robert Alvarez, Nuclear
Intelligence Weekly, July 15, 2016
Former US Department of Energy Official Warns of Radioactive
Waste Hazard at Nuclear Plant on the Columbia River
Robert Alvarez, a former policy advisor to
the U.S. Secretary of Energy during the Clinton
Administration, released a report
entitled
The
Hazards of High-Level Radioactive Waste in the Pacific
Northwest: A Review of Spent Nuclear Fuel Management at the
Columbia Generating Station (PDF). November 19, 2014
Dry Cask Storage
Two main reasons hindering moving older spent fuel from
pools to dry casks are the high cost and the low
availability of casks. It costs about $1 million for each
cask and another half million to load each one with fuel. The concrete pad for casks to sit on costs another
$1 million. A rough estimated cost to move all of the
fuel in the United States that has cooled in pools for at
least five years could be 7 $billion. In addition to
high cost, the low production rate of the casks is another
limiting factor. It has to improve in order to catch up with the
increasing need for temporary spent fuel storage. There are
other issues of dry casks, such as additional chance of human
error and radiation risks. The extra step of moving spent
fuels from pools to casks, compared to sitting in the pools
until long term disposal, poses higher odds to accidents
caused by human mishandling; furthermore, it imposes
additional radiation doses to workers who transfer the spent
fuels from the water. Stanford University class coursework
submittal by Hoi Ng, March 19, 2014
Radioactive Waste
No safe, permanent solution has yet been found anywhere in
the world - and may never be found - for the nuclear waste
problem. In the U.S., the only identified and flawed
high-level radioactive waste deep repository site at Yucca
Mountain, Nevada has been canceled. Beyond Nuclear advocates
for an end to the production of nuclear waste and for
securing the existing reactor waste in hardened on-site
storage. By
Beyond Nuclear
Radioactive Waste Project Articles
from the Nuclear Information and Resource Service
Nuclear waste storage is a multi-generational challenge
Alliance for Nuclear
Accountability
Yucca Mountain, Nevada: Proposed high-level radioactive
waste dump Fact sheets and overview.
Nuclear Information and Resource Service (NIRS). Includes:
The role of geology at the proposed Yucca Mountain nuclear
waste repository (2014)
Why Reviving Yucca Mountain as a Nuclear Waste Repository
Will Not Work (2015)
Yucca Mountain–a Brief History (2015)
Small Modular Nuclear Reactors: No Solution for the Cost, Safety,
and Waste Problems of Nuclear Power By Arjun Makhijani and Michele Boyd, Physicians
for Social Responsibility and Institute for Energy and
Environmental Research, September 2010 (PDF)
Principles
for Safeguarding Nuclear Waste at Reactors
The principles are based on the urgent threats posed by the
current storage of commercial irradiated fuel. Signed by a
wide range of organizations nationally. March 2010
If not Yucca Mountain, then what? An
alternative plan for managing highly radioactive waste in
the United States. By Lisa Ledwidge, Institute for Energy
and Environmental Research, 2001
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