Mediated electrochemical oxidation of organic wastes using a Co (III) mediator in a nitric acid based system

Patent · Tue Jun 15 00:00:00 EDT 1999

OSTI ID:6471121

Balazs, G B; Chiba, Z; Lewis, P R; Nelson, N; Steward, G A

An electrochemical cell with a Co(III) mediator and nitric acid electrolyte provides efficient destruction of organic and mixed wastes. The organic waste is concentrated in the anolyte reservoir, where the mediator oxidizes the organics and insoluble transuranic compounds and is regenerated at the anode until the organics are converted to CO[sub 2]. The nitric acid is an excellent oxidant that facilitates the destruction of the organic components. The anode is not readily attacked by the nitric acid solution, thus the cell can be used for extended continual operation without electrode replacement. 2 figs.

• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Univ. of California, Oakland, CA (United States)
• Patent Number(s): US 5911868; A
• Application Number: PPN: US 8-986476
• OSTI ID: 6471121
• Resource Relation: Patent File Date: 8 Dec 1997
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALPHA-BEARING WASTES
COBALT COMPOUNDS
ELECTROCHEMICAL CELLS
ORGANIC WASTES
OXIDATION
RADIOACTIVE WASTE PROCESSING
CHEMICAL REACTIONS
MANAGEMENT
MATERIALS
PROCESSING
RADIOACTIVE MATERIALS
RADIOACTIVE WASTE MANAGEMENT
RADIOACTIVE WASTES
TRANSITION ELEMENT COMPOUNDS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
052001* - Nuclear Fuels- Waste Processing