SEATTLE — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first atomic ...

The Department of Energy on Wednesday signed the paperwork needed to allow radioactive waste to be pumped into the Hanford nuclear site’s vitrification plant 23 years after construction began, said ...

Hanford plant begins final testing phase using chemical simulants for waste. Low Activity Waste Facility aims to start treating radioactive waste by July. DOE contractor H2C set to assume operations ...

DOE starts vitrification at Hanford, converting tank waste into durable glass. Plant produced glass that meets disposal standards for lined landfill burial. Vitrification frees double-shell tank space ...

A new way to identify salts in nuclear waste melters could help improve clean-up technology, including at the Hanford Site, one of the largest, most complex nuclear waste clean-up sites in the world.

In Central Washington, a big problem sits in the lap of the U.S. Department of Energy: 56 million gallons of nuclear waste are lying underground in steel tanks at the Hanford nuclear site. The tanks ...

SEATTLE — For much of the 20th century, a sprawling complex in the desert of southeastern Washington state turned out most of the plutonium used in the nation’s nuclear arsenal, from the first atomic ...

The deadline to glassify the first of the Hanford nuclear site’s 56 million gallons of radioactive waste will be extended under an agreement filed in federal court. Work began to build the massive ...

Sen. Maria Cantwell, D-Wash., listens to a briefing on tank waste technology during a tour of the Hanford nuclear reservation in April 2019. Bob Brawdy Tri-City Herald File Hanford begins tank waste ...

The Department of Energy Tuesday announced incentive payments of $89 million to five contractors working at the Hanford ...

Regarding the Aug. 13 Aiken Standard article titled “Method created to dispose of some spent nuclear fuel at SRS,” vitrifying spent nuclear fuel is not the same as disposing of it. Vitrification is ...

RICHLAND — More than two decades after construction of the Hanford nuclear site’s massive vitrification plant began, the plant has taken one of the final steps to begin treating waste for disposal as ...