Sludge dehydrating agent and sludge dehydration method

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United States of America Patent

PATENT NO 12110242
APP PUB NO 20230096219A1
SERIAL NO

17603586

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided are: a sludge dehydrating agent which can exert a steady dehydrating effect on various types of sludge and has excellent dehydration performance; and a sludge dehydration method using the sludge dehydrating agent. The sludge dehydrating agent of the present invention with a polymer which has a constituent unit derived from a cationic monomer, wherein a value k determined from an intrinsic viscosity [η] 1 [dL/g] of a 1-mol/L aqueous sodium nitrate solution of the polymer at 30° C. and an intrinsic viscosity [η] 0.01 [dL/g] of a 0.01-mol/L aqueous sodium nitrate solution of the polymer at 30° C. in accordance with formula (I) is 0.8 to 2.2 exclusive

description='In-line Formulae' end='lead'k=([η]0.01−[η]1)/9  (I).description='In-line Formulae' end='tail'

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Patent Owner(s)

Patent OwnerAddress
KURITA WATER INDUSTRIES LTDJAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Sakamoto, Ayako Tokyo, JP 5 20
Sato, Shigeru Tokyo, JP 171 2216
Sekiguchi, Shihoko Tokyo, JP 5 62
Watanabe, Kazuya Tokyo, JP 314 2802

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