Evaporator Campaigns

Evaporator

Campaigns

The 242-A Evaporator is located in the 200 East Area of the Hanford Site and is critical to the safe management of Hanford's tank waste. It began operating in 1977 to reduce the volume of waste stored in Hanford's underground tanks by removing water from the waste. If the waste is acceptable for processing, the waste is pumped into the evaporator from nearby double-shell tanks via double-walled underground transfer lines. It goes into a sealed vessel where atmospheric pressure is reduced and steam heat is applied, boiling the waste at only 125 degrees F., much lower than it would under normal pressure. When the waste reaches a designated thickness, called specific gravity, the waste is transferred to a double-shell tank for storage.

Below please find the current list of all the items related to the Evaporator and evaporator campaigns available on this website.

November 6, 2017

Quicklinks-Evaporator Campaigns

September 21, 2017

Vapors weekly update Sept. 21

Washington River Protection Solutions is committed to providing timely information about chemical vapors at Hanford’s tank farms. Read the latest installment in a series of weekly updates. This week’s topic: Evaporator campaign completed, creating a total of 525,000 gallons of double-shell tank space.
August 24, 2017

Vapors weekly update – Aug. 24

Washington River Protection Solutions is committed to providing timely information about chemical vapors at Hanford’s tank farms. Read the latest installment in a series of weekly updates. This week’s topics: C-105 retrieval continues, 242-A Evaporator campaing to begin and Opportunities for Employee Engagement.
July 20, 2017

Vapors weekly update – July 20

Washington River Protection Solutions is committed to providing timely information about chemical vapors at Hanford’s tank farms. Read the latest installment in a series of weekly updates. This week’s topics: Evaporator campaign completed and opportunities for employee engagement.
June 26, 2017

Vapors weekly update – June 26

Washington River Protection Solutions is committed to providing timely information about chemical vapors at Hanford’s tank farms. Read the latest installment in a series of weekly updates. This week’s topics: 242-A Evaporator readies for operating campaigns and opportunities for employee engagement.
June 16, 2017

Vapors weekly update – June 15

Washington River Protection Solutions is committed to providing timely information about chemical vapors at Hanford’s tank farms. Read the latest installment in a series of weekly updates. This week’s topics: ventilation stack extension testing underway at the 242-A Evaporator, upcoming CVST meetings, other opportunities for […]