Phosphate ores of various types contain appreciable quantities of radioactive species coming from uranium and thorium decay schemes paving for the contamination of the final phosphate products like MAP, DAP and others .In spite of the low level of radioactivity , soil accumulation may cause final crop agricultural contamination which may be transferred to human and animal and plant organs .
Dear Abu Nada... First of all, you are our authority in this respect. It is a real environmental and health problem. The transfer of the radioactivity from the phosphate rocks to the fertilizers confirms that the heavy metals and specifically the radioactive ones are mostly extracted during the process of extraction of the rock with sulfuric acid. This is clearly indicated by the dark greenish blue color of the produced phosphoric acid. Surely selective ligands may remove the radioactive metals from the phosphoric acid before the production of phosphate fertilizer. A systematic study may lead to the optimal methodology. Then we may think of the technology... Regards... Mahmood
Thank you Dr.Mahmood for the valuable comments,hoping working together on this project with my very best regards
Moayyed
Dear Dr.Moayyed G. Jalhoom....... I agree with you. The radioactive elements in phosphate ore are a big problem, even if their effect is low. However, the repeated use and accumulation of these elements, without paying attention to the concentrations of these elements, will generate a deadly effect on life.
Thsnk you Dr.Mahmood for the valuable comments 'looking forward for cooperation
Best Regards
Moayyed
Bedr
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