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Steel plant slag dumps: A potential source of groundwater contamination by Ujjal Mal; Kalyan Adhikari; Anurag Tripathi is a Earth and Planetary Sciences article available to read on EtoBox.

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The metallurgical processes in production of iron and steel from ores produce slags (blast furnace slag and basic oxygen furnace slag), which is usually dumped as solid waste by various steel plants around the world. The present study assessed and estimated the impact of slag dump piling up for the last 60 years on the hydrogeological environment in the industrial city of Durgapur in eastern India. Groundwater survey resembles the unconBned nature of shallow aquifer with elevated concentrations of Ca and Mn in the study area. A factor analysis of groundwater physicochemical parameters suggests natural rockÀwater interaction dominantly controls groundwater composition in the study area. Saturation index of groundwater samples deBnes supersaturated conditions of aragonite, calcite, dolomite and rhodochrosite near the slag dump. A leaching study of slag samples demonstrates high concentration of Mn in the leachate of the slag dump. Laboratory-scale soil column experiment supplemented with HYDRUS 1D model was used to evaluate Mn transport through the vadose zone. HYDRUS 1D model predicts that Mn attain complete breakthrough for 2 m thick soil column in the 40th year. Elevated concentra

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Author

Ujjal Mal; Kalyan Adhikari; Anurag Tripathi

Publisher

Springer Science and Business Media LLC

Published

2022

Language

EN

Field

Earth and Planetary Sciences (Physical Sciences)