Process for converting solid waste and sewage sludge into energy sources and separate recyclable by-products
AssigneeNewest, Inc.
InventorAlfred J. Gangi
Life of this patent
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Abstract
The present invention is an energy efficient process for converting solid waste and/or sewage sludge into a chemical intermediate substrate for production of energy and/or separate non-energy related by-products. The process of this invention integrates technologies for: slurry production and material recovery; slurry demineralization and heavy metal recovery; formation and storage of chemical intermediate substrate; its dewatering; its processing into various energy sources such as solid carbon fuel, steam, or methane gas; and/or production of non-energy by-products such as cement board, gypsum fiber board, or agricultural products.
Claims13
A method for processing waste into a chemical intermediate substrate for production of energy sources and non-energy related by-products comprising:
- (1) producing a slurry of organic and inorganic materials by pulping;
- (2) separating the organic and inorganic materials shredded in step 1 by centrifuging out remaining inorganic components in the slurry of step (1) to produce a predominately organic slurry;
- (3) demineralizing and detoxifying the organic slurry of step (2);
- and
- (4) forming a chemical intermediate substrate by stabilizing, dewatering, and storing the demineralized organic material of step (3).
Dependencies are inferred from the claim text.