Turning sewage into fertilizer

By | August 4, 2012
Come on… do we really need research to tell you that peeing on plants is natural fertilizer? I thought this was common knowledge!

…though recovery from the rest of the sewage water, which contains soap, antibacterial stuff, drain cleaning chemicals, laundry detergent, and so on is a centralized solutiion that is interesting. I personally think a household filtration system on your toilet would be more effective – no need to worry about expensive separation from the household chemical sludge!

Using wastewater as fertilizer
Sewage sludge, wastewater and liquid manure are valuable sources of fertilizer for food production. Fraunhofer researchers have now developed a chemical-free, eco-friendly process that enables the rec…

9 thoughts on “Turning sewage into fertilizer

  1. Sophie Wrobel

    +Mariusz Kaczmarek Mar but it isn't just chemicals. Seeds themselves are also an issue. The last few years are bad from a farming perspective, but compare the ancient species to the modern ones I added to the garden. The old ones are productive like crazy, the new ones are so fragile. I should post a picture of the two, its quite a contrast.

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  2. Mariusz Kaczmarek

    Recommend Nancy Conner's Living Green from +O'Reilly Verlag  where she's writing about exactly this topic. Ph-neutral and nontoxic detergents that do not cause dead zones and over-fertilization of grounds. Don't make the mistake in using chemicals in the first place. 
    #imho  
    Nonetheless it's nice to see that some folks trying to solve that issue. And yes, it's common sense that #1 or #2 makes your plants grow faster 😉

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  3. Per Siden

    Those old dry systems, and the composting ones, are still qute common here in people's 'summer houses'. But I doubt anyone uses them in urban areas. Would have to be some sort of separation toilet and centralized system I guess. Would save tons of water and reduce emissions of fertilizing stuff where it does more harm than good.

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  4. Sue Travers

    +Per Siden I'm sure it's habit that keeps us using water. I remember years ago being on a farm and there was a totally dry system, it wasn't brilliant from a smell point of view, but worked perfectly well. The composting one where I house sat recently was excellent. No smell, and it created good garden fertiliser. It's crazy to use good potable water for the flush. I'd love to see all houses using recycled grey water.

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  5. Per Siden

    I think it was the Nature Governance Department in Sweden that only last week suggested we have to move away from water closets in order to stop waste. I haven't read the proposal but I suppose it will take decades to shift everyone into something new and more sustainable.

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