International Journal of Environmental Sciences

Volume 2 Issue 4 2012           Pages:2243- 2252

Physicochemical assessment of waste dumps of Magnesite and Bauxite Mine in summer and rainy season

Author Information:

Narayanan Mathiyazhagan Department of Biotechnology, Periyar University, Salem 636 011, Tamil Nadu, India

Devarajan Natarajan Assistant Professor, Department of Biotechnology, Periyar University, Salem, Tamil Nadu

ABSTRACT

The aim of this study was to assess the physicochemical properties of mine soil. The waste dumps of magnesite (pH 8.19) and bauxite (5.41) contains almost even type of texture (SCL), EC (0.1) & NPK. High amount of Cd (1811.66; 1246.66 & 911.53; 728.33 mg/kg-1), Pb (428.33; 323.66 & 802.66; 755 mg/kg-1) and Zn (1097.33; 922.33 & 728.8; 510.66 mg/kg-1), were noticed in summer and rainy season on waste dumps of magnesite and bauxite mine respectively. It followed by Cr (55.22; 32.38 & 377.5, 226 mg/kg-1), Cu (59; 24.37 & 80.96; 47.72 mg/kg-1), Fe (2207.33; 1590.33 & 2207.33; 1354.33 mg/kg-1), Ca (4548; 2732 & 64.99; 31.75 mg/kg-1), Mg (5338.66; 3984.66 & 2305.33; 1624.66 mg/kg-1) and Mn (3139.66, 3091.66 & 7111, 6828.33 mg/kg-1). The bauxite wastes only contain trace amount (16.6 mg/kg-1) of Hg. Bauxite waste dumps have high water holding efficiency up to 77.6% for two days than magnesite (55%) waste soil. The PLI for Cd, Zn and Pb were (54.50 & 27.90; 1.730 & 1.255; 1.780 & 1.941) higher in summer and rainy season of both mines correspondingly. This investigation will be very helpful to carry out the further research on both mine soil effectively.

Key words: Magnesite, Bauxite, Mine, Waste dump, Heavy metals, Environment

DOI: 10.6088/ijes.00202030107


© 2012 Copyright Narayanan Mathiyazhagan and Devarajan Natarajan, licensee IPA.This is an open access article distributed under the Creative Commons Attribution License (2.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The electronic version of the article can be downloaded below.

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