US 2023/0405651 A1 · SYSTEM AND METHOD FOR PROCESSING OF MIXED SOLID WASTE TO RECOVER RECYCLABLE MATERIALS

Abstract

A system for recovering recyclable materials from mixed waste is provided. The system processes existing municipal solid waste collections to recover recyclable materials from the waste. The system uses various separation processes sequenced with a rotating, horizontal constant-flow steam based waste processing vessel to efficiently separate high value materials such as metals and rigid plastics while additionally separating low value plastics and post-consumer commodities. The system reduces landfill load and operational costs while simultaneously providing the reduction of carbon emissions achieved with recycling post-consumer commodities.

Claims20

Dependent claims

A waste processing system for recovering recyclable materials from mixed waste garbage comprising:

a shredder configured to shred incoming mixed waste garbage;
a first screen separator configured to receive material from the shredder and to separate food waste rich organic materials from the mixed waste garbage;
a second separation system configured to receive material from the first separator and to separate paper, film plastics, and rigid plastics, from textiles and residual garbage material;
a steam rotary pulping machine configured to receive paper, film plastics, and rigid plastics second separation system and to reduce paper based materials to wet paper pulp through mechanical agitation and the addition of steam;
wherein wet paper pulp is separated from the plastic film and the rigid plastics;
and
a first density separator configured to use upwardly moving air to separate film plastics from rigid plastics.

4 more elements

Dependencies are inferred from the claim text.

System and method for processing of mixed solid waste to recover recyclable materials

Life of this patent

System and method for processing of mixed solid waste to recover recyclable materials

Life of this patent

Abstract

Claims20