4/13/2023 0 Comments Bento import idatabase![]() This article provides a critical assessment of H2 from the standpoint of more widespread use as a sustainable fuel for Indian mobility applications in the global context. Sustainability Heavy Liquid Beneficiation Mineral Waste Treatment This impressive result reveals that LST represents a promising alternative for separating pyrite by density techniques, showing much greater effectiveness than other heavy liquids used in the literature, in addition to being environmentally friendly. The results revealed that the separation technique used in this work led to a significant increase in the concentration of pyrite, going from less than 10% in the raw sample and reaching almost 80% after processing. After the separation process, the samples before and after the beneficiation were characterized by XRD, FTIR, and XRF techniques. For the experiments, raw pyrite samples were collected from the tailings of coal extraction from a mining company in Santa Catarina, Brazil. In the present work, we propose the use of lithium heteropolytungstate (LST), a non-halogenated and non-toxic solution, as an alternative in the separation by density method. One of the most employed techniques is the separation by density using heavy liquids, like bromoform, as a separation medium. For those reasons, the seeking for beneficiation techniques of Pyrite has been the target of numerous studies. When processed, pyrite has several applications with high value-added, in contrast, if improperly discarded, it causes major environmental impacts, like the acid mine drainage. Pyrite (FeS2) is one of the main tailings derived from coal mining. The result is that for India, energy security is a choice between domestic and imported coal. We argue that the enormous effort to establish India’s new coal geography further entrenches the country’s reliance on coal. By analysing the making of the new coal geography at a national level, and scrutinizing its localised manifestation and impact through a case study of Goa state, we outline the significant infrastructural investment and policy work of a dispersed network of public- and private-sector actors that slowly enabled this new coal energy avatar. We understand the development of coastal thermal power as an outcome of long-term electrical energy shortages and significant public controversy within the old coal geography. This geography runs parallel to, yet is distinct from, India’s ‘old’ coal geography, which was based on domestic public-sector coal mining and thermal power generation. We term this transition India’s new coal geography the new coal geography comprises new ports and thermal power plants run by private-sector actors along the coastline and fuelled by imported coal. To address the consolidation of coal-based power in India, this article analyses an energy transition to, rather than away from, carbon-intensive energy over the past two decades. Recent data, however, make it clear that growing coal consumption in India coupled with its continued use in China keeps coal-based energy at 40 percent of the world’s heat and power generation. ![]() The advance of renewable energy around the world has kindled hopes that coal-based energy is on the way out.
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