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Manure-Powered Generators On The Rise

Sunkist writes "The San Francisco Chronicle has a report on Marin County rancher Albert Straus that, after 25 years of work, began using a generator powered by manure. While this type of 'power' has been in use for a while, recent legislation has made it more widespread. From the article, 'The Straus Farms' covered-lagoon methane generator, powered by methane billowing off a covered pool of decomposing bovine waste, is expected to save the operation between $5,000 and $6,000 per month in energy costs.' Let's hear it for poop!"

5 of 444 comments (clear)

  1. Popular in India by G4from128k · · Score: 4, Informative

    In India, they call them gobar gas plants (more details in a 1971 Mother Earth New article). As long as one keeps the 30:1 carbon/nitrogen ratio, they can consume other organic waste too (grass clippings, urine, food waste, etc.). The only problem with them is that they tend to create hydrogen sulfide that makes the gas highly corrisive to iron equipment (some people use a filter of steel wool to remove the H2S).

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  2. Re:The inherited problem is still by Doesn't_Comment_Code · · Score: 4, Informative

    Without forrest like we used to have...

    Many forests around the world have been significantly depleted, but the myth of deforestation in the U.S. is just that, a myth. There hasn't been a significant decrease in plantlife except in very urban areas, like New York.

    Also, on a world wide scale, much of the plantlife that handles the CO2 issue is in the ocean. I don't remember the number, but something like 70% of the CO2 converting plants live in the ocean. I think that's the bigger issue.

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  3. Re:The inherited problem is still by stratjakt · · Score: 4, Informative

    I read recently that there's enough old growth forest in the US to make a band as wide as texas from NY to Seattle.

    Much of it is in undesirable areas (mountains etc) or protected parks so it's pretty much safe.

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  4. Referred to commonly as "biomass" power generation by tbmaddux · · Score: 4, Informative

    See the Green-E website. Many landfills already extract their methane emissions. This is good even from a global-warming perspective, as methane is also a greenhouse gas. Finally, the EPA has tips on reducing methane emissions from livestock themselves, as opposed to their turds.

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    Can't you see that everyone is buying station wagons?
  5. Re:inefficient usage by confused+one · · Score: 4, Informative

    They still use it as fertilizer. While it's sitting in the lagoon decomposing, they capture the methane (instead of letting it outgas into the atmosphere). Then they take the good stuff out of the lagoon and spread it.