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12/16/11(Fri)07:07 No.95184 File1324037235.jpg-(161 KB, 500x375, vermiculture.jpg)
>>95135 Consider the self-contained bio system:
Graywater goes through a gravel filter and then into your flush toilet.
Food waste goes into a grinder and into the digester.
Flush toilet feeds blackwater into the digester.
Digester is a pressure vessel containing anaerobic microbes. It produces heat, biosludge, and biogas.
Heat: Run pipes between it and the pond to keep fish warm.
Biosludge:
Clean(er) compost. Grow mushrooms in a closet. Raise black soldier
flies and worms in a vermiculture box to feed the pupa/worms to the
fish. Use as fertilizer.
Biogas: Water scrubbing cleans it up to 95% methane.
Methane:
Operate any natural gas appliances. Home heating, air conditioning,
water heater, and cooking. Recharge your batteries with excess gas via a
gas engine (45% efficiency). Do this at night when its cold, so the 55%
heat loss warms the house.
Edison cell: Nontoxic, will last 50 years, 6.6 Watts/$, and 80% efficiency. Use for lighting, pumps, and your computer.
Solar
cell: You've already bought a 300 Watt panel; it comes with the
air-to-water package. When you're not using it to make water, recharge
the batteries.
Combining vermiculture with aquaponics creates a
self-contained system. If you chose not to use your compost to grow fly
pupa or worms for your fish, you will have to supplement your fishes
algae diet with fish food or duckweed. Fish food costs money; duckweed
costs space in your hydroponics you would have grown food for yourself.
If
you chose to raise goats for milk and chickens for eggs, and use a dog
to protect the animals from themselves and pests, you will have more
poop to feed into the digester.
Note the standard 6-8 m^3
digesters used in India are $500 and release 300 m^3 biogas a year. Each
m^3 of biogas, being 50-75% CH4, holds 5-7.5 kWh of energy. This
averages to about 5 kWh a day. Compare to solar cells, which produce
approximately 1 kWh per day per m^2 (a 150 Watt unit is about 1 m^2). |