Methods of production and use of rare earth enhanced coagulants
AssigneeSePRO Corporation
InventorsByran C. FUHRMANN, Pamela DUGAN
Life of this patent
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Abstract
A formulation of a trivalent coagulant with a smaller amount of water soluble rare earth that provides enhanced removal of turbidity and particulate phosphorus while simultaneously increasing the density of sludge produced after the removal of organic matter from the treated water. In one embodiment, coagulant and rare earth combination formulations include an aluminum coagulant with a smaller amount of lanthanum and cerium salts. In another embodiment, coagulant and rare earth combination formulations include an iron coagulant with a smaller amount of lanthanum and cerium salts.
Claims17
A method of improving water quality, the method comprising:
- applying a product to a body of water, the product including a mixture of a first amount of a trivalent metal coagulant with a second amount of a rare earth salt, the first amount being greater than the second amount;
- and
- reducing turbidity, reducing particulate phosphorus, and/or increasing sludge density by the application of the product to the body of water.
A product for improving water quality, the product comprising:
- a mixture of a first amount of a trivalent metal coagulant and a second amount of a rare earth salt, the first amount being greater than the second amount.
A product for improving water quality, the product comprising:
- a mixture of an iron-based coagulant with a smaller amount of a rare earth salt, the mixture including:
- a first amount of an iron coagulant, the first amount comprising more than 90% of the product by volume or weight;
- and
- a second amount of a rare earth salt, the rare earth salt comprising of cerium and/or lanthanum.
Dependencies are inferred from the claim text.