The objective of PMKKKY
scheme will be
(a) to implement various
developmental
and welfare projects/programs in mining affected areas
that complement the existing ongoing schemes/projects of
State and Central Government;
(b) to
minimize/mitigate the adverse impacts, during and after
mining, on the environment, health and socioeconomic of
people in mining districts; and
(c) to ensure long-term sustainable livelihoods for the affected people in mining areas.
Problems with M.M.D.R:
The Supreme court cancelled 204 coal blocks allotted to private players in violation of transparency rules. The government thus brought an Act for re auction of mines with a transparent mechanism.
Provisions:
Drawbacks:
Distribution of primary commercial energy in India:
Coal is abundant but is concentrated in the eastern region which accounts for 70% of the total coal resources of the country
The Western region of India has over 70 per cent of hydro-carbon reserves in the country
More than 70 per cent of the total hydro potential in the country is located in the Northern and North - Eastern region
The southern region has only 6 per cent of the coal reserves and 10 per cent of the total hydro potential but has almost 100 per cent of lignite deposits of the country.
Q.With reference to ‘fly ash’ produced by the power plants using the coal as fuel, which of the following statements is/are correct?
1. Fly ash can be used in the production of bricks for building construction
2. Fly ash can be used as a replacement for some of the Portland cement contents of concrete
3. Fly ash is made up of silicon dioxide and calcium oxide only, and does not contain any toxic elements.
Select the correct answer using the code given below (UPSC CSAT 2015)
1 and 2
2 only
1 and 3
3 only
Ans . A
Fly ash from coal-fired thermal power stations is an excellent potential raw material for the manufacture of construction material like blended cement, fly ash bricks, mosaic tiles and hollow blocks. It also has other, high volume applications and can be used for paving roads, building embankments, and mine fills.
Fly ash contains trace concentrations of heavy metals and other substances that are known to be detrimental to health in sufficient quantities.
Potentially toxic trace elements in coal include arsenic, beryllium, cadmium, barium, chromium, copper, lead, mercury, molybdenum, nickel, radium, selenium, thorium, uranium, vanadium, and zinc.
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