Recovery of thorium along with uranium 233 from Thorex waste solution employing Chitosan
- 1. Radiation Safety Systems Division, Bhabha Atomic Research Centre, Mumbai (India)
- 2. Fuel Reprocessing Division, Bhabha Atomic Research Centre, Mumbai (India)
Description
The low level waste solution, generated from Thorex process during the processing of U233, contains thorium along with traces of Th228 and U233. Chitosan, a natural bio-polymer derived from Chitin, was earlier used to recover the uranium and americium. The studies were extended to find out its thorium sorption characteristics. Chitosan exhibited very good absorption of thorium (350 mg/g). Chitosan was equilibrated directly with the low level waste solution at different pH after adjusting its pH, for 60 minutes with a Chitosan to aqueous ratio of 1:100 and the raffinates were filtered and analysed. The results showed more than 99% of thorium and U233 could be recovered by Chitosan between pH 4 and 5. Loaded thorium and uranium could be eluted from the Chitosan by 1M HNO3 quantitatively. (author)
Additional details
Publishing Information
- Publisher
- Board of Research in Nuclear Sciences
- Imprint Place
- Mumbai (India)
- Imprint Title
- Proceedings of the twelfth national symposium on environment. Focal theme: environmental protection strategies for sustainable development
- Imprint Pagination
- 584 p.
- Journal Page Range
- p. 474-476
Conference
- Title
- 12. national symposium on environment
- Acronym
- NSE-12
- Dates
- 5-7 Jun 2003
- Place
- Tehri Garhwal (India)
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 34067224
- Subject category
- S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- GLUCOSAMINE; LOW-LEVEL RADIOACTIVE WASTES; MATERIALS RECOVERY; NITRIC ACID; PH VALUE; RADIOACTIVE WASTE PROCESSING; SORPTION; THOREX PROCESS; THORIUM 228; URANIUM 233
- Descriptors DEC
- ACTINIDE NUCLEI; ALPHA DECAY RADIOISOTOPES; AMINES; CARBOHYDRATES; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HEAVY ION DECAY RADIOISOTOPES; HEAVY NUCLEI; HEXOSAMINES; HEXOSES; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; ISOTOPES; MANAGEMENT; MATERIALS; MONOSACCHARIDES; NEON 24 DECAY RADIOISOTOPES; NITROGEN COMPOUNDS; NUCLEI; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PROCESSING; RADIOACTIVE MATERIALS; RADIOACTIVE WASTE MANAGEMENT; RADIOACTIVE WASTES; RADIOISOTOPES; REPROCESSING; SACCHARIDES; SEPARATION PROCESSES; SPONTANEOUS FISSION RADIOISOTOPES; THORIUM ISOTOPES; URANIUM ISOTOPES; WASTE MANAGEMENT; WASTE PROCESSING; WASTES; YEARS LIVING RADIOISOTOPES
Optional Information
- Notes
- 3 refs., 5 figs., 1 tab.