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Removal of Arsenazo-III from liquid radioactive waste by cloud point extraction |
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| Authors: | Hamed Mostafa M Aglan Refaat F |
| Institution: | 1.Centre for Advanced Research in Environmental Radioactivity (CARER), Mangalore University, Mangalagangothri, 574 199, India ;2.Environmental Survey Laboratory, Kaiga Generating Station, Kaiga, 581 400, India ;3.Health Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India ;4.Homi Bhabha National Institute (HBNI), Anushaktinagar, Mumbai, 400 094, India ; |
| Abstract: | Optimization of a method, based on thermal oxidation using a tube furnace system (Pyrolyser), for the separation of organically bound tritium (OBT) from environmental matrices is discussed. Results show that a maximum of ~?4 g of the vegetation sample, typical wild plant leaves of tropical regions, and ~?8 g of sediment sample can be combusted efficiently in the pyrolyser system. The recovery of OBT from wheat sample was observed to be ~?92% and that for sediment sample was ~?88%. The minimum detectable activity (MDA) at 95% confidence level was 3.4 Bq kg?1 for a sample weight?=?4 g, counting time?=?30,000 s, and detection efficiency?=?23%. |
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