Narrow, Horizontal Seams: Rathole mining involves extracting coal from thin, horizontal seams, which are prevalent in Meghalaya. These seams are often less than 2 meters in thickness. Primitive Extraction Techniques: Miners typically create narrow pits (referred to as "rat holes") into the ground, allowing only one person at a time to descend ...
Shale gas and oil are unconventional natural resources.. They are found at 2,5005,000 metres below the earth's surface. They are deeper in comparison to conventional crude oil found at 1,500 metres.. The process of extracting shale oil and gas requires deep vertical drilling followed by horizontal drilling. The most common way to extract shale gas is 'hydraulic fracturing' (fracking ...
Coal and lignite fired thermal power plants account for about 54 per cent of India's installed power generation capacity but currently account for about 70 per cent of power generated in the country. Importance of Coal to India: Coal is the most important and abundant fossil fuel in India. It accounts for 55% of the country's energy needs ...
It is a primitive and hazardous method of mining for coal. It involves digging of very small narrow tunnels (hence called rat holes), usually 34 feet high, which workers (more often children)enter and extract coal. It is practiced mostly in Northeastern states, especially in Meghalaya because coal seam found in the hilly region is very thin ...
Industrial processing of coal yields useful products like Coke, coal tar, and Coal gas. Coke: Coke is a rigid, porous, and black substance. It is the purest form of carbon. Coke is used in the manufacturing of steel and the extraction of metals. Coal Tar . Coal tar is a black and thick liquid with an unpleasant smell.
The coal mining sector accounts for more than 55% of India's energy needs even today. Read here to know about the new reforms in the sector. ... To expedite the process for conducting auctions and to carry out more rounds of auctions in a year, ... UPSC CSE. Know More. UPSC Prelims Mock Tests Take a FREE Mock Test Get AllIndia Ranking.
Coal India Limited (CIL) is making headlines for its innovative solution to the sand shortage problem. The company is using crushed rock fines (crusher dust), sand from Overburden (OB) of coal mines and soil removed during opencast coal mining, to produce Manufactured Sand (MSand). This not only repurposes waste materials but also reduces the ...
3. Coal Mining is the term that encompasses the physical extraction or removal of coal from the Earth's Surface. When coal is used as fuel in power generation, it is referred to as Steaming or Thermal coal while those which are used to create coke for steel manufacturing is referred to as Coking or Metallurgical Coal. Coal can be mined by both Surface and Underground Mining methods. Surface ...
In the process of coal mining, prevention and control of water hazard is essential. It is the precondition for water hazard control to detect and determine the distribution of underground waterconducting channels. In urban environments, traditional methods such as active source seismic exploration and transient electromagnetic exploration commonly used in the field are difficult to carry out ...
Commercial mining allows the private sector to mine coal commercially without placing any enduse restrictions. The private firms have the option of either gasification of the coal or exporting it. They can also use it in their own enduse plants or sell them in the markets. The government expects more than Rs 33,000 crore of capital ...
Remaining matter in the coal is called volatile material such as moisture, ash content and sulfur content. These are gradually removed by metamorphic process pressure and heat. Bituminous coal has special significance because it contains Bitumen which on heating in absence of oxygen is converted into coking coal.
Coal is a combustible black or brownishblack sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form . Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests. Coal is also called black gold.
Introduction: The Centre launched the auction of 41 coal blocks for commercial mining, with the Prime Minister formally giving the green signal and expressed optimism that it will help in reducing dependency on imports. The move is aimed at reviving the auction process, which has remained in limbo with only 31 coal blocks having . Continue reading "RSTV: THE BIG PICTURE INDIA'S COAL ...
That process would also require onethird less water, making it more economical. ... UPSC Civil Services Examination, Previous Year Questions (PYQs): ... Coalbed methane is the pure methane gas extracted from coal seams, while shale gas is a mixture of propane and butane only that can be extracted from finegrained sedimentary rocks. In India ...
Coal Gasification is the process of converting coal into synthetic gas (syngas) which is a mixture of hydrogen (H2), Carbon Monoxide (CO), and Carbon dioxide (CO2). It is an in situ process in which oxygen is injected into the seam along with water and ignited at a high temperature, which causes the coal to partially oxidize into hydrogen ...
This process of separation of various constituents of petroleum is called petroleum refining. This is done in oil refineries. It is a threestep process. The first step is separation where the crude oil is separated into various components through the distillation process. The heavier constituents remain settled at the bottom whereas lighter ...
Openpit mining is commonly used to extract metallic ores like aluminum, bauxite, copper, gold, copper, and iron as well as nonmetallic ores like coal, uranium, and phosphate. Openpit mining is ...
In this article, You will read Mineral Resources in India (Iron Ore Distribution in India) for UPSC IAS.. Mineral Resources. A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure.. More than two thousand minerals have been identified and most of these are inorganic, which are formed by the various ...
The 2015 Bill primarily seeks to allocate the coal mines that were declared illegal by the Supreme Court. It provides details for the auction process, compensation for the prior allottees, the process for transfer of mines and details of authorities that would conduct the auction. In December 2014, the ministry notified the Coal Mines (Special ...
Recently announced Reforms in Coal Sector. Commercial mining of coal allowed, with 41 blocks to be offered to the private sector. The coal mines being auctioned are located in Chhattisgarh, Jharkhand, Madhya Pradesh, Maharashtra and Odisha. They include partially and fully explored mines. Simplified the process of the mining plan approval ...
The mining sector's contribution to the GDP is % at present. Mineral production in India grew at a compound annual growth rate (CAGR) of % between 201314 and 201718. It can cut down the import costs as the country is the 3 rd largest steel producer, with a production of million tonnes of crude steel in 2017.
Sustainable Mining. This article is based on "Mining in India equals selling the family gold" which was published in The Hindu on 19/01/2021. It talks about the issues related to the present state of mining practices and the need to adopt sustainable mining. India's National Mineral Policy 2019 states that "natural resources, including ...
Context of Rat Hole Mining. On 13 December, 2018, at least 15 workers were trapped in a 320350 feetdeep coal mine in the East Jaintia Hills district of Meghalaya after it was flooded by waters of the nearby Lytein river. Rescue operations led by the National Disaster Response Force and the Indian Navy was on the scene to locate the trapped ...
UPSC Civil Services Examination Previous Year Question (PYQ) Mains. Q. Despite India being one of the countries of Gondwanaland, its mining industry contributes much less to its Gross Domestic Product (GDP) in percentage. Discuss. (2021) Q. "In spite of adverse environmental impact, coal mining is still inevitable for development". Discuss ...
Unscientific method of extraction of coal. Measures to be taken. Coking coal should be used for metallurgical industry only. Low grade coal should be washed and blended with superior quality coal in requisite proportion and used in industries. [Clean Coal Technology] Selective mining should be discouraged and all possible coal from the mines ...
Coal Mines in India Challenges Coal Mining in India is faced with several challenges, including: Environmental degradation: Coal mining has a significant impact on the environment, including air, water, and soil pollution. Mining activities can cause deforestation, soil erosion, land subsidence, and the destruction of wildlife habitats.
Coal gasification is the process of producing syngas (CO, H2, CO2, CH4 and H2O) from coal and water, air and/or oxygen. This can be used for electricity generation, converting syngas to gasoline and diesel, converting methane to LNG, etc. Mining in India has been very inefficient as mainly open cast mining is done.
'Rathole' mining was used to extract coal from narrow and deep mines in Meghalaya. In January 2019, some 15 miners lost their lives when they were trapped for more than a month in one such mine.
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