Mind's Eye Re: Green Issues (might make some 'green')

Isn't this called "night soil"- no pun intended. What about the
spreading of disease via human/animal waste?

On Feb 24, 1:43 pm, archytas <nwte...@gmail.com> wrote:
> You produce some 500 litres of urine and 50 kilograms of faeces a
> year. Besides the water and organic carbon, your annual output
> contains around 10 kilograms of nitrogen, phosphorus and potassium
> compounds, the three main nutrients plants need to grow - helpfully in
> roughly the correct proportions. This is sufficient to fertilise
> plants that would produce more than 200 kilograms of cereals, says
> Christine Werner of the German development agency GIZ.
>
> Scale that up and the world's population excretes 70 million tonnes of
> nutrients annually. Applied to fields, this could replace almost 40
> per cent of the 176 million tonnes of nutrients in chemical
> fertilisers used by the world's farmers in 2011 - from New Scientist.
>
> There are loads of ways to redeploy human waste - from planting a
> banana tree so it roots under the latrine hut to large sewage
> treatment (an entrepreneurial solution can be found in India - they
> are know locally as honey-suckers).  I wonder how any such areas we
> could identify and get into action projects under an international
> project system run on an enterprise basis?

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