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India's Coconut and Coir Economy

Coconut Shells and Activated Carbon

How coconut shells are turned into charcoal and activated carbon used in water filters and gold mining, and how this creates a valuable export.

Coconut shells have value.

Charcoal

Shells are burned into charcoal.

Activated carbon

Charcoal is activated with steam to create a very porous material.

Uses

  • Water and air filters.
  • Gold recovery in mining.
  • Batteries and supercapacitors.

Exports

India exports coconut shell activated carbon, with Tamil Nadu a key hub.

Crafts

Shells also become crafts and utensils.

Circular economy

Using shells turns waste into income.

The water filter

The carbon in a home water filter may come from coconut shells burned in Tamil Nadu.

Thinking coconut shells are waste

They become valuable activated carbon.

Key takeaways
  • Shells become charcoal.
  • Activated carbon filters water.
  • It's used in gold mining.
  • India exports it.
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