Method for treating waste, in particular household refuse, and unit for implementing same

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United States of America Patent

PATENT NO 9943858
SERIAL NO

14388731

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Abstract

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The invention relates to a waste treatment method in which waste is subjected to a first screening process (4). The fraction of waste passing through the screening is subjected to a pre-fermentation treatment in a rotating tube (1) and the material leaving the pre-fermentation treatment tube is subjected to mixing in a mixing hopper, and, subsequently, to a methanization treatment in a digester (2). The organic materials are separated from the undesirable products in the material leaving the pre-fermentation treatment tube before it enters the digester. The digester (2) is horizontal and mechanically stirred, and a fraction of the digestate leaving the digester is recirculated at least in the mixing hopper, the recirculation rate being sufficiently high to ensure complete mixing.

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Patent Owner(s)

Patent OwnerAddress
SUEZ INTERNATIONAL92040 PARIS LA DÉFENSE CEDEX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sommain, Arnaud Mireval, FR 2 0

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