A short history of humanure


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NigelJ

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Certainly in GB they used to use human waste as described in that article.
Some farmers still use either the output of anaerobic digesters or filter cake and spread this on their land. There are a couple of problems one is heavy metal content which can be high due to the wide range of sources combined at UK treatment works, so road run off, human sewage and industrial drains are all combined. Another is Nimbys not liking the idea. Animal slurry is still used and is generally injected below the soil surface to reduce smells and run off. Solid animal waste is also spread but again not always popular with the neighbours.
It needs to be treated to reduce the risk of infection, a tour, I was on in Bulgaria, suffered with Shigella from water melons irrigated with untreated human waste. Fortunately I don't like water melon.
 
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We used to buy sterilised sewage residue when we first began gardening 50 years ago. Really good stuff, but we did always get a big crop of tomato plants in it.
 

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