BLACK SOLDIER FLY COMPOSTING

NEWS

• Karnataka Deputy Chief Minister D K Shivakumar announced in the Legislative Assembly that the government plans to introduce Black Soldier Fly (BSF) composting in Bengaluru to tackle the city’s massive waste burden.
• The technique has been successfully demonstrated in Mangaluru and has received appreciation at national levels.

KEY ANNOUNCEMENTS

Introduction of BSF Composting

• BSF larval composting to be deployed as a scientific and rapid waste-processing method.

New Waste Processing Sites Identified

• North Bengaluru:
  • 134 acres at Doddabelavangala (Doddaballapur)—site of the defunct Terrafirma plant.
• South Bengaluru:
  • 84 acres at Gollahalli (Uttarahalli).

ABOUT BSF COMPOSTING

How It Works

• BSF larvae feed on organic waste and convert it in 7–10 days.
• Produces:
  • Protein-rich larvae (used as animal feed)
  • Nutrient-rich frass (organic manure)

Advantages

• Reduces waste volume by 60–80%
• Low odour, low operational cost
• Suitable for municipal waste
• Reduces methane emissions compared to conventional composting

Significance

• Marks a shift towards circular, bio-based waste management.
• Could reduce landfill pressure and promote sustainable urban governance