METHOD FOR TREATING SLUDGE

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United States of America Patent

APP PUB NO 20200102239A1
SERIAL NO

16621235

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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It is disclosed a method of treating municipal and/or industrial sludge, comprising the steps of: a) providing the sludge, which has a pH of at least 6; b) adding a catalyst to the sludge; c) adding a radical initiator, selected from hydrogen peroxide and percompounds to the sludge; d) adding a polymer to the sludge to provide a chemically treated sludge; e) dewatering the chemically treated sludge in at least one stage to provide a dewatered sludge cake, wherein step b) and c) may be performed in any order.

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Patent Owner(s)

Patent OwnerAddress
KEMIRA OYJ00180 HELSINKI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
LI, Ping Shanghai, CN 297 3581
RECKTENWALD, Michael Espoo, FI 4 24
WU, Suhua Shanghai, CN 1 0

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