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US 2023/0174401 A1Published application
Silica removal reagent for reverse osmosis membrane pretreatment
AssigneeEcolab USA Inc.
InventorsNing JIN, Lingfeng HAN, Chunbo YU
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Abstract
A method of reducing silica fouling in an aqueous system is provided. The method includes adding a composition including a ferric salt and a magnesium salt to an aqueous medium to precipitate silica in the aqueous medium and form a precipitated silica. The method also includes removing at least a portion of the precipitated silica from the aqueous medium to form an aqueous supernatant.
Claims20
A method of reducing silica fouling in an aqueous system, comprising:
- adding a composition comprising a ferric salt and a magnesium salt to an aqueous medium to precipitate silica in the aqueous medium and form a precipitated silica;
- and
- removing at least a portion of the precipitated silica from the aqueous medium to form an aqueous supernatant.
(canceled)
Dependencies are inferred from the claim text.