This is another great reason to modify water power, maybe this way?
http://amazngdrx.blogharbor.com/blog/_archives/2005/7/15/...
To restore wetlands, control flood damage, generate clean electric power, restore aquifers, and stop the eco-destruction of regular dams that block fish and wildlife from their natural migration.
By restoring wetlands the carbon sink effect will actually sequester a huge amount of greenhouse gases.
That problem of methane emission from organic matter in silt is due mainly to high nitrogen concentrations in lakes and rivers from agrichem and manure runnoff from farms, lawns, golf courses, and feedlot farming.
The manure can be digested and the methane consumed in fuel cell/turbine generators (75% efficient)to back up the grid that eventually will be mainly supplied with renewable energy. The cO2 recycled through algae solar systems that make more fuel.
The chemical fertilizer can be entrapped out of the watershed by filtering algae from the lake or river into bioreactors that float on the water and produce extra methane to feed the solid oxide fuel cell/turbine generators.
This water bourne algae is a huge energy source, and using it would allow the removal of pollutants along with the algae. Heavy metals can be separated from the bioreactor sediment using renewable energy.
The bioreactor filter would allow everything but the algae to escape digestion into biogas, clean water, and fertilizer.
