Solar chemical process for sludge treatment
OwnerMichael Boykoinventor
Life of this patent
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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.
Claims18
A process for converting dewatered gelatinous sewage sludge from a gelatinous material into a granular manageable material adapted for use as fertilizer, comprising:
- (a) combining fibrous cellulose waste material with dilute acid solution,
- (b) heating the combined acid and cellulose for an empirically determined time during which the acid and cellulose react, turning the cellulose into a dry substantially black carbonaceous product,
- (c) mixing said dry black product with gelatinous sewage sludge in an empirically determined ratio, converting the sludge and black product mixture into a granular manageable material.
A process for converting cellulose into a carbonaceous material, comprising:
- (a) combining fibrous cellulose waste material with a dilute sulfuric acid solution of from approximately 6 to 8% by volume;
- and
- (b) heating the combined acid and cellulose by exposure to actinic solar rays for an empirically determined time during which the acid, actinic rays, and cellulose react, turning the cellulose into a product at least brown in color.
Dependencies are inferred from the claim text.