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Abstract

Organic fertilizer produced from raw manure, and systems and methods related to the production thereof. A high-velocity air stream is injected into at least one substantially-closed chamber, where it interacts with a supply of raw manure; the raw manure can be bovine or other animal waste products. The high-velocity air stream pulverizes and dries the raw manure, whereby an end product having a moisture content substantially less than the initial moisture content and a live bacteria content substantially equal to the initial live bacteria content of the raw manure is produced. In a preferred embodiment, a cyclonic comminution apparatus is used to pulverize and dry the raw manure; alternatively, a first cyclonic comminution apparatus can be used to substantially pulverize the raw manure and a second cyclonic comminution apparatus can be used to substantially dry the raw manure. A complete system further includes a roll compactor to form briquets from the pulverized and dried raw manure, and a grinder to reduce the briquets to organic fertilizer pellets of a desired size. The system may also include a screening apparatus to separate ones of the organic fertilizer pellets having a size less than a desired size, and an apparatus for bagging the organic fertilizer pellets.

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First Claim