OXIDATION OF ENVIRONMENTAL CONTAMINANTS WITH MIXED VALENT MANGANESE OXIDES
First Claim
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1. A method for reducing the amount of a contaminant in a contaminated medium, comprising combining manganese-based octahedral molecular sieves with the medium under conditions effective to degrade the contaminant, wherein the contaminated medium comprises solid material and the sieves are introduced to the medium, or the contaminated medium comprises fluid and the sieves are incorporated into a solid reactive barrier that is contacted by the medium.
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Abstract
Methods and compositions for reduction of contaminants using manganese-based octahedral molecular sieves.
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Citations
20 Claims
- 1. A method for reducing the amount of a contaminant in a contaminated medium, comprising combining manganese-based octahedral molecular sieves with the medium under conditions effective to degrade the contaminant, wherein the contaminated medium comprises solid material and the sieves are introduced to the medium, or the contaminated medium comprises fluid and the sieves are incorporated into a solid reactive barrier that is contacted by the medium.
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5. The method of claim 5, wherein the oxidant is a persulfate or peroxide compound.
- 13. A composition comprising manganese-based octahedral molecular sieves and a surfactant and/or cosolvent, wherein the manganese-based octahedral molecular sieves are coated with the surfactant or surfactant-cosolvent mixtures, the composition being effective to form a mutually compatible combination with a medium containing contaminant, and to oxidize the contaminant.
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20. A composition comprising:
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Manganese-based octahedral molecular sieves; at least one citrus terpene; and at least one nonionic surfactant selected from the group consisting of ethoxylated soybean oil, ethoxylated castor oil, ethoxylated coconut fatty acid, and amidified, ethoxylated coconut fatty acid; and water, the combination being effective to form a mutually compatible combination with a medium containing contaminant, and to oxidize the contaminant.
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Specification