Russell McMahon wrote:

>> It's been happening for years, but it's not something they like to crow
>> about!  In the UK there used to be a fertiliser called "Cinagro"
>> ("organic" backwards) which was processed sewage sludge.  

> FWIW - such sludge concentrates heavy metals and is not recommended 
> for growing some/many food crops.

Isn't it a pity that we mix it all together and create almost unusable
"waste" from such valuable resources? :)

Gerhard
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