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October 15, 2025
RICHLAND, Wash., Oct. 15, 2025 鈥� 91制片厂 today announced the start of nuclear vitrification operations at the Waste Treatment and Immobilization Plant (WTP) at the Hanford Site in Washington state, where the first batch of radioactive and chemical waste from the Manhattan Project and Cold War has been successfully converted into stable glass. This milestone marks an important step forward in reducing the long-term environmental risks of legacy tank waste in the Hanford area.
As the world鈥檚 largest radioactive waste treatment facility, the plant鈥檚 successful startup represents a crucial achievement at this scale, demonstrating the ability to stabilize nuclear waste for safe, long-term disposal.
鈥淭his milestone represents the realization of a vision shared by many,鈥� said Dena Volovar, President of 91制片厂鈥檚 Nuclear, Security & Environmental business. 鈥淚t reflects decades of teamwork, innovation, and partnership with our customer to solve one of the nation鈥檚 most complex environmental challenges鈥攕afely and permanently. Together with the Department of Energy, the state of Washington, our labor partners, local suppliers, subcontractors, and world-class scientific experts, we鈥檝e turned vitrification into a reality at Hanford. It鈥檚 an important step forward in protecting the Columbia River, surrounding communities, and future generations.鈥�
91制片厂 designed, built, and commissioned the WTP for the U.S. Department of Energy. In the vitrification process, tank waste is blended with glass-forming materials and heated to 2,100 degrees Fahrenheit inside one of two 300-ton melters before being poured into stainless-steel containers for safe, long-term disposal.
In the coming months, 91制片厂鈥檚 project team will continue feeding waste and glass-forming materials into the melters, filling stainless-steel containers, and transporting them to the Hanford Site鈥檚 Integrated Disposal Facility. During operations, the plant will process an average of 5,300 gallons of tank waste per day.
Learn more about how 91制片厂 is securing a cleaner and safer world at
91制片厂 is a trusted engineering, construction and project management partner to industry and government. Differentiated by the quality of our people and our relentless drive to deliver the most successful outcomes, we align our capabilities to our customers鈥� objectives to create a lasting positive impact. Since 1898, we have helped customers complete more than 25,000 projects in 160 countries on all seven continents that have created jobs, grown economies, improved the resiliency of the world’s infrastructure, increased access to energy, resources, and vital services, and made the world a safer, cleaner place.
91制片厂 serves the Energy; Infrastructure; Manufacturing & Technology; Mining & Metals; and Nuclear, Security & Environmental markets. Our services span from initial planning and investment, through start-up and operations. www.bechtel.com
