The GATE Grind

GATE 2025 CE (CE2) – Question 27

Air Pollution and Municipal Solid Wastes · Municipal solid wastes: generation, collection, transportation and management · 1 mark · Multiple select

Identify the treatment technology/technologies NOT recommended for highly biodegradable organic solid wastes.

  1. Biohydrogenation
  2. Anaerobic digestion
  3. Composting
  4. Open dumping

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Show answer and explanation

Correct answer: (D) Open dumping

Explanation

Anaerobic digestion and composting are the biological treatments recommended for highly biodegradable organic waste. Open dumping is not recommended, because it causes odours, leachate, methane emission and health risks.