Joe Barfield's List: permaculture

• If Hermetia larvae digested all of the manure from the 40,000 feeder pigs (avg. wt = 155 lb) on a large swine farm and converted it into prepupae at a FCR of 16%, they would produce about 6,000 lb of dried prepupae each day. Extending this system to the approximately 67 million swine in the United States, about 5,000 tons of dried prepupae meal would be produced per day (1.8 million tons per year). At the same time manure nutrients that could cause environmental problems would be assimilated into a valuable feedstuff.
• If Hermetia larvae digested all of the manure from the 40,000 feeder pigs (avg. wt = 155 lb) on a large swine farm and converted it into prepupae at a FCR of 16%, they would produce about 6,000 lb of dried prepupae each day.
• If Hermetia larvae digested all of the manure from the 40,000 feeder pigs (avg. wt = 155 lb) on a large swine farm and converted it into prepupae at a FCR of 16%, they would produce about 6,000 lb of dried prepupae each day.
• If Hermetia larvae digested all of the manure from the 40,000 feeder pigs (avg. wt = 155 lb) on a large swine farm and converted it into prepupae at a FCR of 16%, they would produce about 6,000 lb of dried prepupae each day.

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• They reportedly can be fully submerged in rubbing alcohol for up to an hour without negative effects.
• Additionally, they do not bite as they have no functioning mouth parts and consume no food as emerged flies. As adult flies they only live 8-9 days, require only water, and survive off body fat stored in the larval stage.   For these reasons, they are not a vector of disease as many flies including the common housefly are.    In fact, as discussed earlier, Hermetia Illucens have been found to repel common pests such as the housefly in commercial poultry operations.
• they have been found to reduce harmful bacteria in organic wastes such as manure  and when manure has been used as a larvae feed substrate they have been found to reduce manure mass by 50%, and total nitrogen concentration by 62%.  This is important because when left untreated excess nitrogen from manure is a water supply contaminant. 

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• n an experiment conducted  in Texas over a period of one year, ESR LLC determined that  SF larvae can digest over 15 kilograms per day of  restaurant food waste per square meter of feeding surface  area, or roughly 3 lbs per square foot per day. A 95%  reduction in the weight and volume of this waste was also  noted. This means that for every 100 lbs of restaurant food  waste deposited into a unit, only 5 lbs of a black, friable  residue remain!

• Passive Solar Design

• • Batch
    • Thermosyphon
    • Open-loop direct
    • Pressurized glycol
    • Closed-loop drainback

   

  The proven winners are simple, reliable, and long lasting. Some systems are "open loop" (the domestic water itself is directly heated) and some are "closed loop" (a heat-transfer fluid is heated by the collector and the heat is passed on to the domestic hot water by means of a heat exchanger). Some systems are "active," using moving parts such as pumps and valves, and others are "passive," using no mechanical or moving parts.

• • How to design a passive solar water   heater

   
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    How to build a passive solar water   heater

   
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    How to install a passive solar   water heater

   
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    Examples of many types of designs   that would almost any situation

   
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    Discussion of potential   improvements to the design