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US 12,168,614 B2Granted
Amorphous carbons for phosphate removal and methods thereof
AssigneeWashington State University
InventorsManuel Garcia-Perez, Michael A. A. Apasiku, Sohrab Haghighi Mood, Jean-Sabin McEwen
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Abstract
The present disclosure provides adsorbent compositions of carbon-containing material and nitrogen that are co-doped with a metal, such as magnesium or calcium. The disclosure also provides methods of adsorbing phosphate, as well as beneficial end products following the process of adsorption.
Claims12
A method of adsorbing phosphate, said method comprising the step of contacting an adsorbent composition with a liquid composition comprising the phosphate,
- wherein the phosphate in the liquid composition is adsorbed by the adsorbent composition, and
- wherein the adsorbent composition comprises i) a carbon-containing material, ii) nitrogen, and iii) one or more metals, wherein the carbon-containing material is biochar, and wherein the one or more metals comprises magnesium, calcium, or a combination thereof,
- wherein the carbon-containing material are doped with the nitrogen, and
- wherein the one or more metals is embedded in a matrix of the carbon-containing material.
1 more element
Dependencies are inferred from the claim text.