Importance

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Abstract

A system for converting biosolids to fertilizer comprising: a storage tank for holding biosolids; a conveyor operably connected to the storage tank for conveying the biosolids from the storage tank to a pressurized screener, wherein the pressurized screener selectively eliminates unwanted debris from the biosolids; a second conveyor operably connected to the pressurized screener to convey the biosolids to a centrifuge, the centrifuge operatively configured to remove water from the biosolids; a third conveyor operably connected to the centrifuge to convey the biosolids to a feeding chamber, a self-leveling conveyer position in the feeding chamber configured to deliver the biosolids to a nip feeder operatively positioned in the feeding chamber to selectively biosolids from the feeding chamber to a nip, wherein the nip is a gap between a first and second dryer drums; the first and second dryer drums operatively positioned to rotate and draw biosolids from the nip feeder into the nip, wherein a first and second scrapers are operably positioned to remove biosolids from the first and second dryer drums as they rotate, wherein the first and second dryer drums are selectively heated with steam provided by a boiler; a fourth conveyor positioned underneath the dryer drums to collect the biosolids after they pass through the nip and to convey the biosolids to a pelletizer configured to form the biosolids into pellets; a fifth conveyor operably connected to the pelletizer to convey the pellets to a cooling chamber.

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First Claim