Polymer coated nanoparticle activation of oxidants for remediation and methods of use thereof
First Claim
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1. A method for decreasing the amount of one or more contaminants in contaminated soil, comprising:
- obtaining polymer-coated nanoparticles comprising a biodegradable polymer coating, andintroducing the polymer-coated nanoparticles into the contaminated soil in an amount effective to decrease the amount of one or more contaminants in the soil, wherein the contaminated soil contains contaminants comprising a non-aqueous phase liquid and wherein the polymer coated nanoparticles partition into the non-aqueous phase liquid.
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Abstract
Methods of decreasing the amount of one or more contaminants in contaminated soil comprise introducing polymer-coated nanoparticles into the contaminated soil, optionally with other reagents. The polymer-coated nanoparticles exhibit an enhanced ability to migrate through the soil and provide greater control of the rate of activation of other chemicals, such as oxidants, in the contaminated soil.
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Citations
17 Claims
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1. A method for decreasing the amount of one or more contaminants in contaminated soil, comprising:
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obtaining polymer-coated nanoparticles comprising a biodegradable polymer coating, and introducing the polymer-coated nanoparticles into the contaminated soil in an amount effective to decrease the amount of one or more contaminants in the soil, wherein the contaminated soil contains contaminants comprising a non-aqueous phase liquid and wherein the polymer coated nanoparticles partition into the non-aqueous phase liquid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14)
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10. A method for decreasing the amount of one or more contaminants in contaminated soil, comprising:
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obtaining polymer-coated nanoparticles comprising a polymer coating; obtaining an oxidant; and introducing the polymer-coated nanoparticles and the oxidant into the contaminated soil in amounts effective to decrease the amount of one or more contaminants in the soil, wherein the polymer coating comprises a polymer selected from the group consisting of polymethyl methacrylate, polystyrene, polyethylene glycol, polyurethane, and combinations thereof. - View Dependent Claims (17)
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15. A method of using polymer-coated nanoparticles to treat a soil comprising a contaminant, comprising:
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emulsifying the nanoparticles with an emulsifier selected from the group consisting of a surfactant, a cosolvent, and a mixture of a surfactant and a cosolvent, to form an emulsified treatment component; blending a plant product selected from the group consisting of a plant oil, a plant extract, and a combination of a plant oil and a plant extract, to form a blended treatment component; and introducing the emulsified treatment component and the blended treatment component into a subsurface of the soil or spreading the emulsified treatment component and the blended treatment component on the surface of the soil to create a reduction zone. - View Dependent Claims (16)
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Specification