Mitigation and recovery of methane emissions from tropical hydroelectric dams

  • Bambace L
  • Ramos F
  • Lima I
 et al. 
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Abstract

Tropical hydroelectric reservoirs generally constitute an appreciable source of methane to the atmosphere. This paper proposes simple mitigation and recovery procedures to substantially reduce atmospheric methane emissions from hydroelectric reservoirs. We aim at transforming existing methane stocks of tropical reservoirs into a clean, renewable energy source. The recovered gas methane may be pumped to large consuming centers, stocked locally and burned in gas turbines to generate electricity during high demand periods, or even purified for transport applications. Our simulations show that the use of biogenic methane may increase considerably the energy supply in countries like Brazil. As a result, it would be possible to reduce the need of additional hydroelectric dams, protecting important pristine biomes, and avoiding the resettlement of villages and indigenous reserves. © 2006 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Bubbling
  • Energy availability
  • Methane emissions
  • Mitigation
  • Recovery
  • Spraying

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