Tag Archives: Savannah River Site

From Germany to South Carolina: Nuclear Waste

castor cask

The U.S. Department of Energy said on June 4, 2014 it will study the environmental risk of importing spent nuclear fuel from Germany that contains highly enriched uranium, a move believed to be the first for the United States.  The department said it is considering a plan to ship the nuclear waste from Germany to the Savannah River Site, a federal facility in South Carolina.  The 310-acre site already holds millions of gallons of high-level nuclear waste in tanks. The waste came from reactors in South Carolina that produced plutonium for nuclear weapons from 1953 to 1989.

The Energy Department said it wants to remove 900 kilograms (1,984 pounds) of uranium the United States sold to Germany years ago and render it safe under U.S. nuclear non-proliferation treaties.  A technique for the three-year process of extracting the uranium, which is contained in graphite balls, is being developed at the site in South Carolina, according to the Energy Department.

[The radioactive waste to be imported to the United States from Germany consists of 152 30-tonne CASTOR casks containing 290,000 graphite balls from the  AVR gas-cooled prototype reactor, stored at the Juelich research center [Forschungszentrum Jülich (FZJ)], and 305 CASTOR casks containing 605,000 graphite balls from the THTR-300 reactor, stored at the Ahaus waste site. While the waste contains some US-origin highly enriched uranium (HEU), the amount is unclear as the material was irradiated and has been in storage for over 20 years since the reactors closed.]

Some critics question whether the department has fully developed a clear plan to dispose of the radioactive waste.”They’re proposing to extract the uranium and reuse it as fuel by a process that has never been done before,” said Tom Clements, president of SRS Watch, a nuclear watchdog group in South Carolina….

Sources told Reuters in May that German utilities were in talks with the government about setting up a “bad bank” for nuclear plants, in response to German Chancellor Angela Merkel’s decision to close them all by 2022 after Japan’s Fukushima nuclear disaster.

Excerpt from  Harriet McLeod, German nuclear waste may be headed to South Carolina site, Reuters, June 4, 2014

Storage of Nuclear Waste in the United States II: New Mexico

The (Savannah River SiteSRS Citizens Advisory Board will discuss a recommendation to send some or all of the site’s 3,100 “ready for shipment” canisters of stabilized waste to the Department of Energy’s Waste Isolation Pilot Plant near Carlsbad, N.M., where lower-level “transuranic” nuclear waste is buried in 250 million-year-old salt deposits a half-mile beneath the Chihuahuan Desert.  The most dangerous waste at SRS is being vitrified – placed into glass poured into steel canisters that, until the Obama administration canceled the Yucca Mountain project in 2010, were to be removed from South Carolina for burial in Nevada.

“SRS is now storing these canisters with no known final disposition path,” the board wrote in a draft recommendation to be discussed at its May 21-22 meeting in Savannah, Ga. Ultimately, the number of canisters will swell to 7,500, equiring – in addition to two existing storage buildings – the construction of a third storage site.  The indefinite storage of high-level waste that DOE pledged to remove from South Carolina “has not been accepted well by the surrounding communities” and undermines DOE’s credibility, the draft said.

The WIPP site was designed for the disposition of the same type of canisters stored at SRS but is licensed only for less-concentrated radioactive wastes, such as lightly contaminated clothing, tools and other materials. Because of that difference, revising the facility’s acceptance criteria would likely require approval from Congress.  “From our limited understanding the WIPP site would be technically feasible and it seems to have an astounding amount of capacity to accept radioactive waste,” the draft said. “Further, any attempt to have canisters removed from SRS would have an immediate positive impact on the surrounding communities.”

The board is a stakeholder group that provides the assistant secretary for environmental management and designees with advice, information and recommendations on issues affecting the environmental and cleanup programs.

By Rob Pavey,SRS nuclear waste could go to New Mexico facility, The Augusta Chronicle, May 10, 2012