Systems and methods for processing a heterogeneous waste stream
AssigneeAccordant Energy, LLC
InventorDingrong Bai
Life of this patent
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Abstract
Systems and methods for processing and sorting a municipal solid waste stream are described herein. A system can include a processing sub-system configured to receive a municipal solid waste stream and to remove the non-processable waste, a processing apparatus configured and disposed to receive constituents of the municipal solid waste stream from the processing sub-system and reduce the size of the constituents of the waste stream to an average particle size of less than about ¾ inch, and separators configured to sort the waste stream into constituents based on density.
Claims17
A method of sorting a municipal solid waste stream, the method comprising:
- removing non-processable waste and marketable recyclables from the municipal solid waste stream;
- shredding the waste stream to reduce the size of constituents of the waste stream to be less than a first predetermined size;
- removing additional non-processable and non-combustible waste from the shredded waste stream to form a processable waste stream;
- further reducing the size of constituents of the processable waste to be less than a second predetermined size;
- separating the processable waste into at least a plastic stream and a fiber stream;
- and
- combining a quantity of the plastic stream and a quantity of the fiber stream to form an engineered fuel feedstock.
A method of sorting a municipal solid waste stream to provide a classified waste stream for the production of an engineered fuel feedstock, the method comprising:
- removing non-processable waste and marketable recyclables from the municipal solid waste stream;
- shredding the waste stream to reduce the size of constituents of the waste stream to be less than a first predetermined size;
- removing additional non-processable and non-combustible waste from the shredded waste stream to form a processable waste stream;
- further reducing the size of constituents of the processable waste to be less than a second predetermined size;
- separating the processable waste into at least a plastic stream and a fiber stream;
- combining an additive with a quantity of at least one of the plastic stream and the fiber stream to form an intermediate material;
- and further combining the intermediate material with at least one of a quantity of the plastic stream and a quantity of the fiber stream to provide a classified waste stream for the production of an engineered fuel feedstock.
Dependencies are inferred from the claim text.