The Indigenous people and Human right: the issues and challenges

Jun 17th, 2015
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Indigenous peoples inhabit large areas of the earth's surface. Spread across the world, at a rough estimate, some 300 million. Indigenous or aboriginal peoples are so-called because they were living on their lands before settlers came from elsewhere.

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Use of Wollastonite for Tailing Waste Management Enriched in Mn (II) and Zn (II)A.K. Singh, S. Gupta, R.P. Singh and N.C. KarmakarDepartment of Mining Engineering, Institute of Technology, Banaras Hindu University, Varanasi-221005, IndiaABSTRACT: This paper deals the study of use of wollastonite for the treatment of tailing wastes enriched in Mn(II) and Zn(II). The efficiency of wollastonite was tested at different concentrations and temperatures at suitable pH of the system. It was found that low concentration favors the uptake of adsorbate species. However effect of temperature varies with the nature of adsorbate Species The process of uptake follows a first order adsorption rate kinetics and obeys Langmuir model of adsorption isotherm. The removal process has also been found to be partially diffusion controlled and mass transfer co-efficient have been determined to explain the mechanism of adsorption. The effect of pH has been discussed incorporating various surface site reactions. A generalized empirical models is proposed for different initial concentrations and temperatures 1. Introduction Rapid industrialization is posing problems, such as environmental pollution, which is threatening the very existence of living beings. The presence of heavy metals in the environment, released by polluting industries, is of major concern because of its toxicity and threat to the environment. Anthropogenic of heavy metals include wastes from the electroplating and metal finish

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