METHOD FOR TREATING SLUDGE
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United States of America Patent
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Issued Date -
Apr 2, 2020
app pub date -
Jun 13, 2017
filing date -
Jun 13, 2017
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Abstract
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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