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Updated: Jul 20, 2026

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability
Published on: June 21, 2015
Natural radionuclides in zircon and related radiological impacts in mineral separation plants
P P Haridasan1, P M B Pillai, A H Khan
1Environmental Assessment Division, Bhabha Atomic Research Centre, Health Physics Unit, Indian Rare Earths Ltd, Udyogamandal, Kerala 683 501, India. hpuire@vsnl.net
Abstract:
The activity concentration of uranium and thorium present in zircon obtained from mineral sand industries are presented. External gamma radiation levels and inhalation of airborne dust are found to be the significant routes of radiation exposure to occupational workers. The annual average dose attributed to zircon processing is estimated to be 2.3 mSv in the plants under study. This paper presents the results of external gamma measurements, estimation of airborne radioactivity in zircon process locations and radon and thoron in the occupational environment of two mineral separation plants in India. Analyses of the solid wastes and liquid effluent generated and resultant environmental impacts are indicated.
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