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Post Info TOPIC: GNEP: Don't knock it till you try it.


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GNEP: Don't knock it till you try it.


In response to CanWest article

I'd be the last person to acknowledge governments do things right.

On the issue of Global Nuclear Energy Partnership this DOE effort might have a point.
Although AECL is well versed (60+ years) in LWR tech. I would opt for an Advanced Fast Reactor system. Building in Alberta 15 billion dollar twin ACR-1000's (1200 MWe) class heavy water mod reactor w/ light water coolant pressure tube system is in my view not the best choice reactor system ... 'cause what to do with the tonnage of spent fuel that needs to be stored in geological repository in most cases?

Well, enter GNEP. The plan is to process this spent fuel to burn in newer generation (sodium reactors built underground) AFR's in a effort to close the fuel cycle. I other words recycle spent fuel to use in reactors generating electricity leaving less potential fuel buried in the ground idle.
Does this spent fuel recycling processing contribute to more greenhouse gases? NO. compared to fossil fuel burning and processing it doesn't come close: see Australian paper 

Greenhouse gas emissions from nuclear power across the full life cycle, from uranium mining to final waste disposal, are at least ten times lower than from conventional fossil fuels, and are similar to those from many renewables.

Under one scenario considered by the Review, adoption of nuclear power in Australia in place of coal could reduce national greenhouse gas emissions by 17 per cent in 2050. I'm not a power broker, but obviously this processed spent fuel to burn in newer reactors will have a market and if countries like Russia, Korea, Japan, Australia, U.S., Canada etc. were to pitch in then they could offset some of the costs of implementing GNEP spent fuel recycling for nuclear power plant fuel.    

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Bruce Behrhorst


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Another article on GNEP....

Canada would reprocess other nations' nuclear waste under energy pact, Lunn says
SHAWN MCCARTHY
GLOBE AND MAIL, September 5, 2007
Canada will eventually get into the business of reprocessing spent nuclear fuel, Natural Resources Minister Gary Lunn said yesterday as the government considers an invitation to join a major international effort to promote nuclear technology worldwide. As he headed to a meeting of the Asia Pacific Economic Co-operation forum in Australia yesterday, Prime Minister Stephen Harper was expected to face questions on whether Canada will join the Global Nuclear Energy Partnership, a group of major nuclear powers dedicated to spreading nuclear technology into developing countries.

U.S. President George W. Bush - who is leading the GNEP process - has suggested that, as a price of entry, major uranium-producing countries should agree to accept and dispose of nuclear waste from countries to which they sell the uranium for reactor fuel.

Canada is the world's largest uranium producer, followed closely by Australia, whose government has already indicated an interest in joining the nuclear partnership.

"We're very seriously looking at our options but a final decision has not been made on it yet," Mr. Lunn said yesterday. "There are some benefits that we would want to be looking for, but I believe there could be some advantages for Canada to be an official member of the GNEP."

He said the newly formed group is reviewing its own principles. He said that it is not practical to require producing countries to accept nuclear waste from their customers, particularly those that have adequate storage facilities of their own. But he would not comment on whether Canada would sign on if it was required to accept nuclear waste from other countries.

The minister recently announced that the government had approved a plan for long-term storage of nuclear waste, in which the spent fuel would be kept at the reactor site for 30 years, then moved to a centralized storage facility for eventual burial deep underground.

Yesterday, he suggested some of that spent fuel will eventually be reprocessed and used again.
"At this point in time, reprocessing spent nuclear waste from a Candu reactor is not something done now, but there is no question that as the technology evolves, it's something we'll see in the years ahead," he said.

The domestic industry is eager to expand its role and get into the business of processing imported reactor waste and enriching domestically produced uranium, Murray Elston, president of the Canadian Nuclear Association, said yesterday.

He said that as a result of rising raw uranium prices, reprocessed reactor waste and enriched uranium will be "the fuel of choice worldwide." To take advantage of that market, Canada needs to join the GNEP group, which is working out standards for the safe handling and processing of spent fuel.

Mr. Elston said nuclear military powers have been reprocessing and transporting nuclear waste for years, and have proven it can be done safely.

But Norm Rubin, a nuclear industry researcher at Toronto-based Energy Probe, said the reprocessed fuel is far more dangerous than the solid spent fuel rods that are now stored at reactor sites around the world. He noted that a nine-year federal assessment of Canada's nuclear waste disposal options never dealt with the proposed importation of high-level waste.

"When you reprocess it, you are taking one of the most stable forms of nuclear waste - it's still nasty, but at least it is stable - and . . . you end up with a corrosive liquid that contains all of the nastiness that you were thinking of disposing of in the first place," he said.

The APEC summit
What is APEC?
Asia-Pacific Economic Co-operation is an intergovernmental summit to negotiate voluntary trade agreements among Pacific Rim countries. Since it formed in 1989, the group has grown to include 21 members stretching across the Pacific Ocean from the Americas to Australia and Asia. They account for 48 per cent of world trade.

Who belongs to it?
Australia, Brunei, Canada, Chile, China, Hong Kong, Indonesia, Japan, Malaysia, Mexico, New Zealand, Papua New Guinea, Peru, the Philippines, Russia, Singapore, South Korea, Taiwan, Thailand, the United States and Vietnam.

Canada's goal
A senior government official told The Globe and Mail that Canada will push for tougher initiatives on limiting greenhouse-gas emissions. It is unclear how much influence Canada holds on climate-change issues, given its Kyoto record.


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Energy Probe, said the reprocessed fuel is far more dangerous than the solid spent fuel rods that are now stored at reactor sites around the world. He noted that a nine-year federal assessment of Canada's nuclear waste disposal options never dealt with the proposed importation of high-level waste.

"When you reprocess it, you are taking one of the most stable forms of nuclear waste - it's still nasty, but at least it is stable - and . . . you end up with a corrosive liquid that contains all of the nastiness that you were thinking of disposing of in the first place,"

One the processes UREX uses acids and reagents, I don't see it's use or the pyrometallurgical recycling of nuclear fuel  as any different than other industrial nuclear chemistry type processes other than PUREX. 

...So working with slurries is bad?

(UREX solvent extraction of transmutation of long-lived radionuclides is the current extraction process promoted by DOE/Westinghouse to address disposal of commercial nuclear reactor fuel and improve deposits for geologic repository. It will separate fuel into a transuranium TRU product stream for conversion to mixed oxide (MOX) reactor fuel. The separation of Technetium (Tc) 99 and Iodine 129 from conversion to target for transmutation and a uranium product that meets criteria for disposal as a class C low-level waste (LLW). The goal of the UREX process is to recover >99.9% of the uranium and >95% of the Tc in separate product streams while rejecting >99.9% of the TRU isotope to the raffinate. The process is designed to use Acetohydroxamic acid (AHA) and Nitric acid. By reducing PUREX you reduce deposits of plutonium and the isotopes that become increasingly attractive over the next 100,000+ yrs. the half-life of Pu-239 is 24,000 yrs. since choice fuels for nuclear explosive devices are U-235, Pu-239 and U-233. Fast reactors are not prolific breeders of weapons grade plutonium fuel as an incidental by-product of reactor design.) UREX Process
 

I see the argument as weak. It's an obvious process of recycling (transmutation of nuclear isotope).


-- Edited by NUKE ROCKY44 at 01:37, 2007-09-11

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Bruce Behrhorst
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