Waste Treatment Technologies — Revision Notes

⚡ 30-Second Revision

2016-linked CPCB selection guidance: fit technology to waste.
2023 CPCB biogas guidance: feedstock and residues matter.
Composting aerobic; digestion anaerobic.
Biogas needs upgrading for specified fuel uses.
Input tonnage ≠ usable recovery.

2-Minute Revision

Prevention and segregation shape downstream performance. Compost and digestate require suitable inputs and output-quality checks. Incineration needs an energy balance and pollution/residue controls. A facility receiving 100 tonnes and recovering 80 still has twenty tonnes to manage. Compare the full system, including maintenance and markets, using the same accounting boundaries.

5-Minute Revision

Draw three segregated input streams and assign an appropriate treatment route to each. Label every output, including rejects. Reconcile the 100-tonne example and explain why collection is not recovery. Then identify the missing information in a proposal reporting gross electricity without internal consumption or ash management.

Vyyuha Quick Recall

Input → process → product → residue → destination.