Carbonization

Sludge disposal
June 29, 2018
Milling
June 29, 2018

The dried chunks are heated in a drum kiln at high temperatures to burn off any harmful gases, eliminate pathogens and increase the amount of carbon, making the feces more flammable. This step also makes the faeces odourless.  A similar process of carbonizing sawdust also takes place in an open pan.

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