Michael A Boyko

US Patent:

41915496, Mar 4, 1980

Filed:

Aug 22, 1978

Appl. No.:

5/935962

Inventors:

Michael Boyko - Denver CO

International Classification:

C05F 1300

US Classification:

71 13

Abstract:

A solar chemical process for converting sewer sludge from a gelatinous mass into a manageable product suitable for fertilizer includes the manufacture of a carbonaceous product by treating cellulose waste such as newspaper with sulfuric acid and heating the mixture until the cellulose product becomes substantially black. The black product is mixed with sludge in a ratio to produce a grainy product that can be chlorinated for sterility and spread as fertilizer. In a modified version of the process, coal ash is added to the sludge with the carbonaceous product for its nutrient value, and sand may be added with the coal ash to aid in aeration of the soil.