1,725,352 research outputs found
Afghanistan looking ahead : challenges for governance and community welfare / Douglas Saltmarshe; Abhilash Medhi
No full textLocal governance for local needs / Douglas Saltmarshe and Abhilash Medhi -- Rethinking rural poverty reduction in Afghanistan / Paula Kantor and Adam Pain -- Practicing democracy in Afghanistan / Oliver Lough -- Painful steps / Jay Lamey with Emily WinterbothamLocal governance for local needsRethinking rural poverty reduction in AfghanistanPracticing democracy in AfghanistanPainful step
Microbial Extraction of Uranium from Ores
No full textCONTENTS
3.1 Introduction
3.2 Uranium Leaching Methodologies
3.2.1 Chemical Leaching
3.2.2 Bioleaching
3.3 Modes and Mechanism of Uranium Bioleaching
3.3.1 Direct Mechanism
3.3.2 Indirect Mechanism
3.3.3 Bioleaching by Heterotrophs
3.4 Factors Influencing Bioleaching
3.4.1 Mineralogy of the Ore
3.4.2 Microorganisms
3.4.3 Temperature
3.4.4 pH
3.4.5 Nutrients and Energy Source
3.4.6 Importance of Iron Oxidation
3.4.7 Sulphur Reduction
3.5 Bioleaching Techniques
3.5.1 Laboratory Investigations
3.5.1.1 Submerged Leaching
3.5.1.2 Column/Percolation Bioleaching
3.5.2 Large Scale/Industrial Operations
3.5.2.1 Dump Leaching
3.5.2.2 Heap Leaching
3.5.2.3 In Situ Leaching
3.5.2.4 Tank Leaching
3.6 Bioleaching of Uranium in the Indian Scenario.
3.7 Conclusions
Reference
Recovery of Rare Earth Elements from Metallurgical Wastes
No full textThe metallurgical wastes from ferrous and nonferrous
industries contain several valuable base, rare and rare earths elements. The common of these are red mud, fly ash, steel slag, and other which are mostly dumped or still demanding huge consumption. This chapter presents works carried out globally and the various features of the wastes that make them suitable for rare earth extraction. Several processing options used globally to treat such discarded materials are presented in vogue. This chapter also addresses the demerits of waste disposal, world distribution of such resources and the current operations to tackle these wastes in the pursuit of value recovery
Microbial Biodesulphurisation of Coal
No full text6.1 Introduction
6.2 Coal Reserves and Production
6.2.1 Global Coal Scenario
6.2.1.1 Coal Production
6.2.2 Coal Reserves in India
6.2.2.1 Coal Production in India
6.2.2.2 Categorisation of Coal in India
6.2.2.3 Grades of Coal in India
6.3 High Sulphur Coal
6.3.1 Chemistry of Sulphur in Coal
6.3.1.1 Sulphur in Coal: A Worldwide Problem
6.3.1.2 Sulphur Content in Indian Coal
6.3.1.3 Need for Desulphurisation
6.4 Desulphurisation Processes
6.4.1 Physical Methods of Desulphurisation
6.4.2 Chemical Methods of Desulphurisation
6.4.3 Bio-Desulphurisation and Microorganisms
6.4.3.1 Bio-Removal of Pyritic Sulphur
6.4.3.2 Bio-Desulphurisation of Organic Sulphur
6.4.3.3 Mechanisms of Organic Sulphur Removal
6.5 Future Research Directions
Reference
Local governance in Afghanistan : a view from the ground
No full textDouglas Saltmarshe; Abhilash Medh
District councils : the missing middle of local governance
No full textDouglas Saltmarshe; Abhilash Medh
Afghanistan looking ahead : challenges for governance and community welfare
No full textLocal governance for local needs / Douglas Saltmarshe and Abhilash Medhi -- Rethinking rural poverty reduction in Afghanistan / Paula Kantor and Adam Pain -- Practicing democracy in Afghanistan / Oliver Lough -- Painful steps / Jay Lamey with Emily WinterbothamDouglas Saltmarshe; Abhilash MedhiLocal governance for local needsRethinking rural poverty reduction in AfghanistanPracticing democracy in AfghanistanPainful step
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An Overview of extraction schemes for the recovery of Erbium
No full textIt covers the various available hydrometallurgical processes for extraction and separation of erbium and also highlights the approaches for its purification
Book review: half lion: how P.V. Narasimha Rao transformed India by Vinay Sitapati
No full textP.V. Narasimha Rao served as Prime Minister of India between 1991-95 and presided over the country’s economic liberalisation, yet his legacy is highly contested. In Half Lion: How P.V. Narasimha Rao transformed India political scientist Vinay Sitapati draws on new evidence and interviews to present an alternative portrait of one of India’s most misunderstood and maligned leaders in modern history. Abhilash Puljal finds the book is fast paced and lucid and writes that it is an informative read for both academics and non-academics who are unaware of the contributions made by Rao
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