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US 12,202,744 B2Granted
Fluoride removal process
AssigneeETH Zurich
InventorsQingrui Zhang, Raffaele Mezzenga, Sreenath Bolisetty
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Abstract
The present invention relates to the field of water treatment/fluoride removal and to materials/devices useful in such processes. Specifically, the invention provides for hybrid materials comprising amyloid fibrils and ZrO2; and to composite materials further comprising a support material. The invention further provides for the treatment of water using such hybrid or composite materials.
Claims20
A water filter comprising:
- a filter membrane comprising
- a support membrane having a surface;
- and
- a hybrid material on the surface of the support membrane, wherein the hybrid material comprises amyloid fibrils and nanoparticulate ZrO2, wherein the amyloid fibrils and the nanoparticulate ZrO2 are in intimate contact, remain separate and distinct and are thoroughly and randomly mixed;
- and wherein the nanoparticulate ZrO2 is below 50 nm size.
2 more elements
A water filter comprising;
- a filter membrane comprising a material comprising amyloid fibrils and nanoparticulate ZrO2;
- wherein the amyloid fibrils and the nanoparticulate ZrO2 remain separate and distinct and are randomly mixed with one another;
- the nanoparticulate ZrO2 is 10 nm in size or less;
- wherein the ratio of amyloid fibrils to nanoparticulate ZrO2 is in the range of from 1/1 to 1/100 (w/w);
- and
- a support material.
3 more elements
A water filter for filtering fluoride comprising amyloid fibrils, nanoparticulate ZrO2 confined to the amyloid fibrils, and a support material;
- wherein the amyloid fibrils and the nanoparticulate ZrO2 remain separate and distinct and are randomly mixed with one another;
- the nanoparticulate ZrO2 is below 50 nm size;
- wherein the ratio of amyloid fibrils to nanoparticulate ZrO2 is in the range of from 1/1 to 1/100 (w/w).
Dependencies are inferred from the claim text.