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Though tannery waste water consisits of several constituents, such as Magnesium, Chromium, zinc, lead etc but in this book removal of Chromium (VI) or transformation of Chromium (VI) to Chromium (III) has been investigated. The treatment of wastewater has been performed using chemical component as primary treatment component and isolated micro-organism (from tannery wastewater) treatment as secondary treatment. Chromium resistant bacteria were isolated and cultured from tannery sludge (near tannery waste dumping area). Though several studies have been done earlier on this regard, but here...

In India, indigenous tribal communities are the most backward sections of the society and they have been a matter of great concern for the Government. More than 87 per cent of the country's tribal population is confined to 11 states, among which Odisha has the largest number of tribal communities and Mayurbhanj district has the highest concentration of tribes. Throughout the history of development, tribal communities were trapped in a vicious circle of exploitation. This led to social discontent and unrest, resulting in extremist activities, which can be prevented only by more meaningful...