Process for dewatering organic waste product

Details Process for dewatering organic waste product Process for dewatering organic waste product

1976-08-18

1978-03-28

Hart, Charles N.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 18, 210 64, 210 65, 71 13, 71 16, 71 22, 71 25, 71 30, 71 64E, 71 64F, 426 69, 426807, C05F 300

Patent

active

040813665

ABSTRACT:
A process for the chemical treatment of organic waste materials contaminated with a pathogenic microorganism, such as raw sewage, sewage sludge and other organic waste products, and to the treated organic waste material so obtained, which process comprises: prereacting the organic waste material with a water-soluble methylol compound subject to condensation, such as a methylolurea compound, under alkaline pH conditions; and, thereafter, condensing the methylol compound by establishing an acid pH condition to form a solid waste product comprising a condensation polymer containing methylene bridges and a sterile solid waste material.

REFERENCES:
patent: 2127629 (1938-08-01), Jones
patent: 3073693 (1963-01-01), Neilsson
patent: 3226318 (1965-12-01), Schick
patent: 3227543 (1966-01-01), O'Donnell
patent: 3279979 (1966-10-01), Gribnau
patent: 3649598 (1972-03-01), Namioka
patent: 3655395 (1972-04-01), Karnematt
patent: 3705794 (1972-12-01), Czwak et al.
patent: 3942970 (1976-03-01), O'Donnell
patent: 3976465 (1976-08-01), O'Donnell

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