Workers complete assembly of 300-ton nuclear waste melter - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

Workers complete assembly of 300-ton nuclear waste melter

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RICHLAND, WA —The Department of Energy’s Office of River Protection (ORP) and contractor Bechtel National Inc. (BNI) today announced employees have safely completed final assembly of the first melter at Hanford’s Waste Treatment and Immobilization Plant (WTP), also known as the Vit Plant. The 300-ton nuclear waste melter is one of two located inside the WTP’s Low-Activity Waste (LAW) facility.

“The melters are the heart of the WTP low-activity waste vitrification process, and completing the assembly marks another step towards completing construction and shifting to commissioning. The melters are large complex pieces of equipment critical to WTP’s success,” said Bill Hamel, WTP Federal Project Director for the ORP.

Construction crews are now focused on safely assembling the second LAW melter.

“The melter final assembly brings us one step closer to Low-Activity Waste facility construction completion,” said Peggy McCullough, BNI project director for the WTP Project. “For our employees, this achievement represents a substantial, detailed design, fabrication and assembly effort for the largest nuclear waste melter ever built in the U.S.”

The melters will be used to heat Hanford’s low-activity tank waste and glass-forming materials to 2,100 degrees Fahrenheit – a process called vitrification – before the mixture is poured into stainless steel containers for permanent storage. During plant operations the two LAW facility melters will produce 30 tons of glass daily, ten times the capacity of the melter in operation at DOE Savannah River Site's Defense Waste Processing Facility in South Carolina.

The LAW facility melters, and other components of the facility, can be seen in the Vit Plant Virtual Tour.

BNI holds the prime contract to design, construct, start up and commission the Vit Plant, which includes the LAW facility, an Analytical Laboratory, the High-Level Waste (HLW) facility, the Pretreatment (PT) facility and a collection of more than 20 support facilities. The LAW facility, Analytical Laboratory and set of support facilities are part of DOE’s Direct Feed Low-Activity Waste  approach to treat low-activity tank waste as soon as 2022, and ahead of full WTP commissioning, taking advantage of those facilities that are close to completion

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