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Potential Application of Yellow Gypsum From LD Slag as a Soil Conditioner


Affiliations
1 R&D Department, Tata Steel Limited, Jamshedpur 831 007, India
2 Department of Fuel, Minerals and Metallurgical Engineering, Dhanbad 826 004, India
3 Applied Chemistry Department, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India
 

In the present study, ICP-AES and ICP-MS techniques were used to analyse and validate the content of heavy and trace elements in yellow gypsum samples produced by a chemical process from a solid waste generated at an integrated steel plant. The present study tries to demonstrate that the content of heavy metals like lead, mercury and arsenic in yellow gypsum is less than the toxicity characteristic leaching procedure (TCLP) norms set for a comparable industrial by-product phospho-gypsum. This study also concludes that yellow gypsum contains some elements (copper, boron, etc.) in traces, apart from heavy metals which are beneficial to plants as micronutrients.

Keywords

Heavy Metals, IICP-MS, ICP-AES, Trace Elements, Yellow Gypsum.
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  • Potential Application of Yellow Gypsum From LD Slag as a Soil Conditioner

Abstract Views: 401  |  PDF Views: 141

Authors

Shrenivas Ashrit
R&D Department, Tata Steel Limited, Jamshedpur 831 007, India
Ravikrishna V. Chatti
R&D Department, Tata Steel Limited, Jamshedpur 831 007, India
S. Sarkar
R&D Department, Tata Steel Limited, Jamshedpur 831 007, India
R. Venugopal
Department of Fuel, Minerals and Metallurgical Engineering, Dhanbad 826 004, India
G. Udayabhanu
Applied Chemistry Department, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India

Abstract


In the present study, ICP-AES and ICP-MS techniques were used to analyse and validate the content of heavy and trace elements in yellow gypsum samples produced by a chemical process from a solid waste generated at an integrated steel plant. The present study tries to demonstrate that the content of heavy metals like lead, mercury and arsenic in yellow gypsum is less than the toxicity characteristic leaching procedure (TCLP) norms set for a comparable industrial by-product phospho-gypsum. This study also concludes that yellow gypsum contains some elements (copper, boron, etc.) in traces, apart from heavy metals which are beneficial to plants as micronutrients.

Keywords


Heavy Metals, IICP-MS, ICP-AES, Trace Elements, Yellow Gypsum.

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DOI: https://doi.org/10.18520/cs%2Fv118%2Fi1%2F118-122