Organic Soil Amendments with Ions Bound Thereto for Removing Contaminants from Aqueous Streams
AssigneeNeo Water Treatment, LLC
InventorMason Reames HANELINE
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Abstract
A composition for treating water including an organic soil amendment and having ions bound thereto is beneficial to aid in the removal of aqueous contaminants, such as phosphate, other phosphorus containing compounds, arsenic, arsenic containing compounds, fluorides, and PFAS from water. In these compositions the ions include rare earth cations, iron cations, and mixtures thereof. There are also methods for making these soil amendment compositions, as well as methods for using these compositions to effectively remove contaminants from water.
Claims21
A method for removing contaminants from an aqueous stream, comprising:
- (i) contacting an aqueous stream having a first contaminant concentration with a composition for treating water comprising (a) an organic soil amendment selected from the group consisting of superabsorbent polymers (SAPs), humic acid, humic acid salts, humic acid esters, and mixtures thereof and (b) cations selected from rare earth cations, iron cations, or mixtures thereof, wherein the cations are bound to the soil amendment and the composition comprises about 1% to about 50% by weight cations based on the total weight of the composition not taking into account any water present in the composition;
- (ii) removing contaminant from the aqueous stream by contact of the aqueous stream with the composition;
- and
- (iii) providing a treated aqueous stream with a second contaminant concentration less than the first contaminant concentration.
A method for removing contaminants from an aqueous stream, comprising:
- (i) contacting an aqueous stream having a first contaminant concentration with a composition for treating water comprising (a) an organic soil amendment selected from the group consisting of superabsorbent polymers (SAPs), humic acid, humic acid salts, humic acid esters, and mixtures thereof and (b) rare earth cations, wherein the cations are bound to the soil amendment and wherein the composition comprises about 1% to about 50% by weight rare earth cations based on the total weight of the composition not taking into account any water present in the composition;
- (ii) removing contaminant from the aqueous stream by contact of the aqueous stream with the composition;
- and
- (iii) providing a treated aqueous stream with a second contaminant concentration less than the first contaminant concentration,
- wherein the contaminant is selected from the group consisting of phosphate, phosphorus containing compounds, arsenic, arsenic containing compounds, PFAS, fluorides, and mixtures thereof.
A method of making a composition for treating water comprising the steps of:
- providing an organic soil amendment selected from the group consisting of superabsorbent polymers (SAPs), humic acid, humic acid salts, humic acid esters, and mixtures thereof;
- and
- contacting the organic soil amendment with an amount of rare earth salts in water to provide a composition comprising an organic soil amendment with rare earth cations bound to the soil amendment, wherein the composition comprises about 1% to about 50% by weight rare earth cations based on the total weight of the composition not taking into account any water present in the composition.
Dependencies are inferred from the claim text.