Leatherist -> RE: Country Life vs. City Life (2/22/2008 9:38:34 AM)
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The beauty of the system is the nitrifying bacteria in the gravel beds. They convert the ammonia into nitrates, which the plants use as fertilzer. The water returns from the beds pretty much free and clean in a balanced system. As far as wood burning and forestation, there are many trees of chippable grade that grow very fast. Again, we can think outside of the box. Seperated fish waste solids can be run through worm beds, or in methane composting tanks-then used to fertilize the tree crop, replacing the nutrients used up in heating. There are a lot of burn crops that can be cycled in a season or less for fuel. Chipped wood can be fed into a boiler firebox in much the same way as a pellet stove, and also be used to run electric steam turbines. Waste steam is then used to heat the greenhouses, and returned in a closed loop cycle.
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