Dissolution characteristics of 226Ra from phosphogypsum |
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| Authors: | Haridasan P P Maniyan C G Pillai P M B Khan A H |
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| Institution: | Environmental Assessment Division, Bhabha Atomic Research Centre, Health Physics Unit, Indian Rare Earth Ltd, Kerala, India. irered@vsnl.com |
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| Abstract: | The paper presents the results of the dissolution characteristics of 226Ra from phosphogypsum, a by-product from phosphate fertilizer industries. Leachability of 226Ra in distilled water and rainwater have been examined under different leaching conditions such as contact time, solid:liquid ratio and simulating natural conditions. The concentration of 226Ra activity in the leachates ranged from 0.07 to 0.53 Bq l(-1). Study indicated that leaching of radium may be slow in field conditions near the phosphogypsum stock piles. |
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