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US 2023/0357067 A1Published application
Cationic emulsion terpolymer to increase cake solids in centrifuges
AssigneeSolenis Technologies, L.P.
InventorsNathalie Bruzzano, Markus Bröcher
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Abstract
The present disclosure generally relates to dewatering aqueous sludge that is produced by waste water or sewage treatment facilities such as from municipal and industrial processes. The method includes treating an aqueous sludge with a cationic polyacrylamide terpolymer that includes an acrylamide; a first cationic monomer and a second cationic monomer that is different from the first monomer, and dewatering the treated aqueous sludge.
Claims21
A method of dewatering aqueous sludge, said method comprising:
- a) treating the aqueous sludge with a cationic polyacrylamide terpolymer comprising:
- acrylamide;
- a first cationic monomer;
- and a second cationic monomer that is different from the first cationic monomer;
- b) dewatering the treated aqueous sludge obtained from step a).
2 more elements
A method of increasing cake dryness in a sludge dewatering processes comprising:
- a) treating an aqueous sludge with a cationic polyacrylamide terpolymer comprising:
- acrylamide;
- a first cationic monomer and a second cationic monomer that is different from the first monomer;
- b) dewatering the treated aqueous sludge obtained from step a) producing a filter cake.
1 more element
Dependencies are inferred from the claim text.