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US Patent 7497890 Method of converting waste to soil/feed modifiers

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Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
74978901
Patent Inventor Names
Helge Otto Friedrich Sahl1
Date of Patent
March 3, 2009
1
Patent Application Number
113859901
Date Filed
March 21, 2006
1
Patent Primary Examiner
‌
C. Sayala
1
Patent abstract

Disclosed is a method for transforming Municipal Solid Waste (MSW) into a useful compost material. The method involves both a pre-treatment and a treatment phase. In the pre-treatment phase, a waste stream is processed to remove valuable waste after which the waste is ground to a suitable size. In the treatment phase, heat and pressure are applied to the waste and activators are added to sterilize the waste and transform it into a useful end product.

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