Q. Consider the following materials:
1. Agricultural residues
2. Corn grain
3. Wastewater treatment sludge
4. Wood mill waste
Which of the above can be used as feedstock for producing Sustainable Aviation Fuel?
(a) 1 and 2 only
(b) 3 and 4 only
(c) 1, 2, 3 and 4
(d) 1, 3 and 4 only
Correct answer: (c) 1, 2, 3 and 4
Question from UPSC Prelims 2024 GS Paper
Explanation:
Sustainable Aviation Fuel (SAF)
1. Agricultural residues: These can indeed be used for SAF production. They’re a common biomass feedstock.
2. Corn grain: This is also used for biofuel production, including SAF.
3. Wastewater treatment sludge: This organic waste can be converted into biofuels, including SAF.
4. Wood mill waste: Another viable biomass feedstock for SAF production.
All of these materials can be used as feedstocks for producing Sustainable Aviation Fuel through various conversion processes. Each represents a form of biomass or waste that can be transformed into fuel, reducing the reliance on fossil fuels and potentially lowering carbon emissions.
Therefore, the correct answer is: (c) 1, 2, 3 and 4