System for chemically digesting low level radioactive, solid waste material

Patent · Fri Jan 01 04:00:00 EST 1982

OSTI ID:864122

Cowan, Richard G.; Blasewitz, Albert G.

An improved method and system for chemically digesting low level radioactive, solid waste material having a high through-put. The solid waste material is added to an annular vessel (10) substantially filled with concentrated sulfuric acid. Concentrated nitric acid or nitrogen dioxide is added to the sulfuric acid within the annular vessel while the sulfuric acid is reacting with the solid waste. The solid waste is mixed within the sulfuric acid so that the solid waste is substantilly fully immersed during the reaction. The off gas from the reaction and the products slurry residue is removed from the vessel during the reaction.

• Research Organization: Hanford Engineering Development Lab., Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: EY-76-C-14-2170
• Assignee: The United States of America as represented by the United States Department of Energy (Washington, DC)
• Patent Number(s): 4,313,845
• Application Number: 06/098109
• OSTI ID: 864122
• Country of Publication: United States
• Language: English

Related Subjects

/588/422/976/
10
acid
added
annular
chemically
chemically digesting
concentrated
concentrated nitric
concentrated sulfuric
digesting
dioxide
filled
gas
immersed
improved
improved method
level
level radioactive
material
method
mixed
nitric
nitric acid
nitrogen
nitrogen dioxide
products
radioactive
reacting
reaction
removed
residue
slurry
solid
solid waste
substantially
substantially fill
substantially filled
substantilly
sulfuric
sulfuric acid
through-put
vessel
waste
waste material