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Antimony Sorption and Removal on Carbon Steel/Magnetite Surfaces in Relation to Pressurized Heavy Water Reactors


Affiliations
1 Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
2 Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
3 Material Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
 

In nuclear power plants corrosion and activation of structural material and its re-deposition on out-ofcore surfaces is of significance as far as structural integrity and radiation exposure to the employees are concerned. Recently, Indian Pressurized Heavy Water Reactors have faced a typical problem of activation of antimony (Sb) from primary heat transport pump seals containing ∼10% Sb. This Sb cannot be removed easily and its deposition mechanism is yet to be clearly understood. This article deals with studies related to the understanding of this process and a solution for the removal of Sb.

Keywords

Antimony, Absorption and Removal, Carbon Steel, Magnetite, Pressurized Heavy Water Reactors.
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  • Antimony Sorption and Removal on Carbon Steel/Magnetite Surfaces in Relation to Pressurized Heavy Water Reactors

Abstract Views: 255  |  PDF Views: 90

Authors

S. J. Keny
Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
A. G. Kumbhar
Water and Steam Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
A. Sanjukta
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
S. Pandey
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
S. Ramanathan
Material Science Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
G. Venkateswaran
Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India

Abstract


In nuclear power plants corrosion and activation of structural material and its re-deposition on out-ofcore surfaces is of significance as far as structural integrity and radiation exposure to the employees are concerned. Recently, Indian Pressurized Heavy Water Reactors have faced a typical problem of activation of antimony (Sb) from primary heat transport pump seals containing ∼10% Sb. This Sb cannot be removed easily and its deposition mechanism is yet to be clearly understood. This article deals with studies related to the understanding of this process and a solution for the removal of Sb.

Keywords


Antimony, Absorption and Removal, Carbon Steel, Magnetite, Pressurized Heavy Water Reactors.



DOI: https://doi.org/10.18520/cs%2Fv106%2Fi8%2F1094-1100