Heat treating excreta and products thereof

Distillation: processes – thermolytic – Non-mineral distilland with catalyst or chemical treatment...

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4 10, 4131, 110 9R, C10B 4300, A47K 1102, E03D 100

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active

039620441

ABSTRACT:
Solid animal excreta, such as solid livestock excreta, solid human excreta and solid poultry excreta, is converted to useful products by particulating the excreta and heat treating it in a closed heating zone at about 200.degree.C to about 1000.degree.C for a time sufficient to volatilize a portion thereof and provide the solid residue with a carbon content of about 1% to about 80 weight percent. The volatilized portion can be withdrawn from the heating zone and separately recovered by condensing the condensibles. This consists of an aqueous and a non-aqueous portion. The non-aqueous portion of the condensate is oleaginous in the form of an oil, grease or wax containing nitrogenous substances and is useful for a variety of purposes. The aqueous portion is rich in nitrogen and is useful as a fertilizer. The solid particulate residue can be employed as a foaming agent or filler for glass products and as a coloring agent or pigment in inks, paints and rubber products.

REFERENCES:
patent: 1189638 (1916-07-01), Testrup et al.
patent: 2246224 (1941-06-01), Streander
patent: 3272740 (1966-09-01), Gitchel et al.
patent: 3639111 (1972-02-01), Brink et al.
patent: 3671403 (1972-06-01), Hess et al.
patent: 3761568 (1973-09-01), Brink et al.
patent: 3876538 (1975-04-01), Hess et al.

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