Waste conversion process

• US 3,875,317 A
• Filed: 09/17/1971
• Issued: 04/01/1975
• Est. Priority Date: 09/17/1971
• Status: Expired due to Term

• Current Assignee: Stuart R. Ferguson
• Original Assignee: Stuart R. Ferguson
• Inventors: Ferguson, Stuart R.
• Primary Examiner(s): Yudkoff, Norman
• Assistant Examiner(s): Bernstein, Hiram H.
• Application Number:
  US05/181,319
• Time in Patent Office: 1,292 Days
• Field of Search: 99/2,10,6,9 71/21,22 127/37 162/21,22,97 426/371,372,373,374,425,431,445,447,455,478,480,489,495
• US Class Current: 426/635
• CPC Class Codes: A23K 10/26 from waste material, e.g. feathers, bones or skin A23K10/24 takes precedence
• CPC Class Codes: A23K 10/32 from hydrolysates of wood or straw
• CPC Class Codes: C05F 3/00 Fertilisers from human or animal excrements, e.g. manure
• CPC Class Codes: Y02A 40/20 Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
• CPC Class Codes: Y02P 20/145 the feedstock being materials of biological origin

Abstract

A process for converting stable waste (manure and straw) and grandstand waste (principally paper) into useful products such as molasses, regular and activated charcoal, gypsum, acetic acid, furfural produces and fertilizer.

Claims

1. SEPARATING SOLUBLE CONTENTS OF MANURE FROM STRAW FOR SUBSEQUENT UTILIZATION AS FERTILIZER

2. The method of claim 1 wherein hot steam is used to pressurize said container and the pressure is suddenly reduced by opening a quick-release valve connected thereto.

3. The method in claim 1 wherein the cell structure of the residue mass is fractured by suddenly expelling said residue from said container by steam pressure.

4. The method in claim 1 wherein the temperature is about 300*F. and the pressure is about 100 psi.