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US-based Oklo and the Southern Ohio Diversification Initiative (SODI) have signed an agreement for land to host two more of Oklo’s Aurora design fast neutron microreactors. Oklo received a site permit in December 2019 from the US Department of Energy to build its first Aurora facility at Idaho National Laboratory (INL).

Date: Thursday, 25 May 2023
Original article: neimagazine.com/news/newstwo-more-sites-agreed-for-oklo-mmr-10878676

The US Nuclear Regulatory Commission (NRC) has accepted an application from X-Energy Reactor Company subsidiary, TRISO-X, for a fuel fabrication facility which will use high-assay low-enriched uranium (HALEU). Anticipating the decision, TRISO-X, in October, broke ground and began construction of the facility in Oak Ridge, Tennessee. The TRISO-X Fuel Fabrication Facility (TF3) is expected to create more than 400 jobs and attract investment of approximately $300 million. TF3 is set to be commissioned and operational by 2025.

Date: Wednesday, 21 December 2022
Original article: neimagazine.com/news/newsus-nrc-accepts-triso-xs-application-for-fuel-fabrication-facility-10451681

The former Centrifuge Complex site at Oak Ridge in Tennessee is now ready for industrial development. The complex was one of the final collections of buildings to be demolished last year as workers completed the first-ever cleanup of a former uranium enrichment complex. The footprint of the former facility is earmarked for the construction of a proposed regional airport at the East Tennessee Technology Park (ETTP).

Date: Friday, 10 September 2021
Original article: world-nuclear-news.org/Articles/Former-US-enrichment-site-ready-for-redevelopment

Work began on 23 May to demolish the last two buildings at the US gaseous diffusion uranium enrichment facility at Oak Ridge in Tennessee. Buildings K-131 and K-631, constructed in 1945, are the most contaminated structures still standing on the 890 hectare site, which hosted facilities constructed to support the Manhattan Project. Oak Ridge, which also produced enriched uranium for the commercial nuclear industry from 1945 to 1985, has been undergoing deactivation and decommissioning since the US Department of Energy (DOE) ended uranium enrichment in 1987. The site was then closed and re-named the East Tennessee Technology Park (ETTP). K-131 was built to provide uranium hexafluoride to the uranium enrichment cascade, while K-631 was used to withdraw gaseous depleted uranium from the cascade, convert it to liquid and transfer it into transport cylinders. Demolition has already begun on the five-story K-131, and the two-story K-631 will follow. The buildings, which are connected to one another and have a combined floor space of more than 83,000 square feet, are the most contaminated structures remaining at the site, the DOE Office of Environmental Management (OEM) said. Demolition of the two buildings by Oak Ridge Office of Environmental Management (OREM) and clean-up contractor UCOR is scheduled for completion this summer. All demolitions at ETTP are expected to be completed in 2020, when the site will be converted into a multi-use industrial park.  

Date: Tuesday, 28 May 2019
Original article: neimagazine.com/news/newsdemolition-of-us-gaseous-diffusion-facilities-begins-7230408

US Centrus Energy Corp (formerly known as USEC) announced on 2 October that it had been awarded a $15 million work authorisation by the US Department of Energy (DOE) for decontamination and decommissioning (D&D) to prepare the K-1600 facility in Oak Ridge, Tennessee, for demolition. Centrus has leased K-1600 - the former K-25 site -  from the DOE since 2002 to test and demonstrate its uranium enrichment technology. The company has also been conducting centrifuge manufacturing, engineering and design at its own nearby Technology and Manufacturing Centre (TMC) in south Oak Ridge, at the former Boeing plant.

Date: Friday, 05 October 2018
Original article: neimagazine.com/news/newsus-doe-awards-centrus-15m-for-decommissioning-work-6786749

The U.S. Department of Energy (DOE) has awarded Fluor-BWXT Portsmouth (FBP) joint venture a 30-month contract extension for work at the Portsmouth Gaseous Diffusion Plant in Ohio. The contract is worth around $850 million. 
 
The project includes deactivation of all the plant facilities, process equipment and buildings and preparation for demolition and disposal. It also includes continued environmental remediation, uranium stewardship and community outreach programmes, BWXT said.
 
The Portsmouth plant was one of three large gaseous diffusion plants in the USA initially constructed to produce enriched uranium to support the nuclear weapons programme and, in later years, enriched uranium used by commercial nuclear reactors. Portsmouth operated from 1954 to 2001. 

Date: Thursday, 04 October 2018
Original article: neimagazine.com/news/newsdoe-extends-portsmouth-cleanup-contract-6782795

The US Department of Energy (DOE) announced on 26 May that Four Rivers Nuclear Partnership, a CH2M-led company with partners Fluor Corporation and BWX Technologies, had been awarded the Paducah deactivation and remediation (D&R) contract at the Paducah Gaseous Diffusion Plant in Kentucky. Work under the contract includes facility characterisation and stabilisation, groundwater remediation, waste operations, utility operations and surveillance and maintenance. The Paducah Gaseous Diffusion Plant, leased from the DOE and operated by Centrus (formerly USEC), produced enriched uranium from 1952, originally for military reactors and weapons refining and later for nuclear fuel. From 1993 to 2013, the plant was leased for conducting gaseous diffusion operations by the United States Enrichment Corporation (USEC). It was then handed back to DOE for decontamination and decommissioning.

Date: Wednesday, 31 May 2017
Original article: neimagazine.com/news/newscontract-awarded-for-remediation-of-us-paducah-enrichment-plant-5829696

United States Enrichment Corporation, a subsidiary of Centrus Energy Corp. has returned full control of the 750-acre uranium enrichment complex near Paducah, Kentucky to the U.S. Department of Energy (DOE).

Date: Wednesday, 22 October 2014
Original article: neimagazine.com/news/newspaducah-returned-to-us-doe-4414095

USEC Inc. announced that it had not been able to conclude a deal for the short-term extension of uranium enrichment at the Paducah Gaseous Diffusion Plant in Kentucky, and the company will begin ceasing uranium enrichment at the end of May. USEC leases the plant from the U.S. Department of Energy (DOE).

Date: Tuesday, 28 May 2013
Original article: neimagazine.com/news/newsusec-to-cease-enrichment-at-paducah

USEC Inc. has entered into a multi-party arrangement with Energy Northwest, the Bonneville Power Administration (BPA), the Tennessee Valley Authority (TVA) and the U. S. Department of Energy (DOE) to extend uranium enrichment operations at the Paducah Gaseous Diffusion Plant in Paducah, Kentucky.

Date: Thursday, 17 May 2012
Original article: neimagazine.com/news/newsagreement-extends-paducah-enrichment-operations

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