What is waste-to-energy?, PgII

Key Highlights:

• Waste-to-Energy (WtE) converts non-recyclable waste into usable fuel like heat or electricity.
• Incineration, gasification, and anaerobic digestion are common WtE methods.
• WtE reduces waste volume by approximately 90%, extending landfill life.
• India has at least 21 WtE plants and 133 biogas facilities.
• Solid Waste Management Rules 2026 in India encourage refuse-derived fuel (RDF).

Detailed Insights:

• WtE technologies like incineration can reduce reliance on landfills and mitigate methane emissions from organic waste decomposition.
• Environmental concerns include the release of carbon dioxide, dioxins, furans, and heavy metals during waste combustion.
• Advanced WtE facilities employ scrubbing and filtration systems to minimize the emission of harmful pollutants.
• Critics argue WtE may disincentivize recycling and composting by creating a continuous demand for waste.
• The Solid Waste Management Rules 2026 mandate waste segregation to reduce landfill burden and promote RDF use in India.

Scientific/Technical Concepts Involved:

• Incineration: Burning waste at high temperatures to produce steam for power generation.
• Gasification: Converting waste into gas using high heat and low oxygen conditions.
• Anaerobic Digestion: Decomposing organic waste using bacteria to produce biogas.
• Refuse-Derived Fuel (RDF): Fuel produced from processing municipal solid waste.