Method for acid oxidation of radioactive, hazardous, and mixed organic waste materials
- Aiken, SC
- Corrales, NM
- Folly Beach, SC
The present invention is directed to a process for reducing the volume of low level radioactive and mixed waste to enable the waste to be more economically stored in a suitable repository, and for placing the waste into a form suitable for permanent disposal. The invention involves a process for preparing radioactive, hazardous, or mixed waste for storage by contacting the waste starting material containing at least one organic carbon-containing compound and at least one radioactive or hazardous waste component with nitric acid and phosphoric acid simultaneously at a contacting temperature in the range of about 140.degree. C. to about 210 .degree. C. for a period of time sufficient to oxidize at least a portion of the organic carbon-containing compound to gaseous products, thereby producing a residual concentrated waste product containing substantially all of said radioactive or inorganic hazardous waste component; and immobilizing the residual concentrated waste product in a solid phosphate-based ceramic or glass form.
- Research Organization:
- Savannah River Site (SRS), Aiken, SC (United States)
- DOE Contract Number:
- AC09-89SR18035
- Assignee:
- Westinghouse Savannah River Company (Aiken, SC)
- Patent Number(s):
- US 5960368
- OSTI ID:
- 872557
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
acid
oxidation
radioactive
hazardous
mixed
organic
waste
materials
directed
process
reducing
volume
level
enable
economically
stored
suitable
repository
placing
form
permanent
disposal
involves
preparing
storage
contacting
starting
material
containing
carbon-containing
compound
component
nitric
phosphoric
simultaneously
temperature
range
140
degree
210
period
time
sufficient
oxidize
portion
gaseous
products
producing
residual
concentrated
product
substantially
inorganic
immobilizing
solid
phosphate-based
ceramic
glass
organic carbon
concentrated waste
waste product
containing compound
permanent disposal
mixed waste
starting material
hazardous waste
time sufficient
nitric acid
waste material
waste materials
phosphoric acid
gaseous product
organic waste
material containing
gaseous products
product containing
level radioactive
preparing radioactive
residual concentrated
based ceramic
mixed organic
form suitable
containing substantially
waste starting
carbon-containing compound
duct containing
containing substantial
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