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GAIL proposes waste-to-biogas plant in Bengaluru
ஏன் செய்தியில்?
₹123 crore to turn Bengaluru's garbage into gas: the SATAT and waste-management link KPSC Environment tests
₹123-crore waste-to-biogas plant proposed in Bengaluru.
Why it matters: general awareness

What you need to know
2 நிமிடம்
GAIL has proposed a ₹123-crore waste-to-biogas plant at the KCDC site in Bengaluru, aimed at converting city waste into bio-energy.
ஆதாரங்கள்: Topper IAS editorial (PIB / The Hindu / Indian Express)
முக்கிய உண்மைகள்
Remember these
- GAIL has proposed a ₹123-crore waste-to-biogas plant at the KCDC site in Bengaluru.
- The plant aims to convert city waste into bio-energy.
- GAIL (India) Ltd is a Maharatna PSU under the Ministry of Petroleum and Natural Gas.
- Biogas is mainly methane and carbon dioxide; purified, it becomes compressed biogas (CBG).
- The SATAT scheme (2018) promotes CBG production and its supply to the transport sector.
ப்ரிலிம்ஸ் · மெயின்ஸ்
How the exam will ask it
ப்ரிலிம்ஸ்
- Biogas produced by anaerobic digestion of organic waste consists mainly of methane and carbon dioxide.
- Compressed biogas (CBG) can substitute CNG as a vehicle fuel and for piped gas.
- GAIL (India) Limited is a public sector undertaking under the Ministry of Petroleum and Natural Gas.
- Under the SATAT initiative, oil marketing companies offer to purchase CBG from entrepreneurs.
மெயின்ஸ்
GS-III (Environment, Energy): Rising urban municipal solid waste and landfill pressure in cities like Bengaluru call for scientific processing under the Solid Waste Management Rules. Waste-to-biogas plants cut landfill methane, create clean fuel and support the GOBARdhan and SATAT goals. Way forward: strict source segregation, assured offtake and pricing for CBG, and use of the digestate as organic manure.
Quick recall
Answer before you reveal
Consider the following statements about the Cabinet-approved rabi fertiliser subsidy of ₹62,370 crore:
- The subsidy rate on nitrogen has been doubled.
- The subsidy rate on phosphorus has been reduced.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
விடையைக் காட்டு
விடை: A — Correct: 1 only — the nitrogen subsidy has been doubled, while phosphorus was raised, not cut, so only statement 1 holds. • 2 only — wrong: statement 2 is false because the phosphorus subsidy rate was raised by 25 per cent. • Both 1 and 2 — wrong: statement 2 is false, since phosphorus support went up by 25 per cent. • Neither 1 nor 2 — wrong: statement 1 is true — the nitrogen rate was doubled.
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