Granular green sorbent media for filtration of contaminated water
AssigneeThe Trustees of the Stevens Institute of Technology
InventorsDibyendu Sarkar, Viravid Na Nagara, Rupali Datta
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Abstract
Filter media for treating contaminated water is produced from aluminum-based water treatment residuals (Al-WTR) commonly produced as a byproduct of water treatment plants. By processing the residuals into small granules, a superior green sorbent product is obtained with the functionality to adsorb contaminants, such as metals and certain nutrients in water. Biopolymers can be incorporated into the filter media to further enhance functionality and hydraulic characters.
Claims20
A filter media for treating contaminated water, comprising a plurality of particles of powdered aluminum-based water treatment residuals, each particle of at least some of said plurality of particles being entrapped in a corresponding shell which includes calcium and potassium alginate.
Dependencies are inferred from the claim text.