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US 12,350,535 B2Granted
In situ treatment systems for remediation of polychlorinated biphenyl contaminated building materials
AssigneeUniversity of Central Florida Research Foundation, Inc.
InventorsCherie Yestrebsky, Adibah M. Almutairi
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Abstract
Treatment systems and methods for capable of extracting or extracting and degrading trapped PCBs within a variety of building materials.
Claims9
A treatment system capable of remediating a halogenated compound, the treatment system comprising:
- optionally from about 0 to about 80 percent by weight based on the total weight of the treatment system of a plurality of zero-valent metal particles;
- and
- from about 5 to about 95 percent by weight based on the total weight of the treatment system of a co-solvent comprising:
- from about 85 to about 90 percent by weight based on the total weight of the co-solvent of a first organic hydrogen donating solvent, wherein the first organic hydrogen donating solvent is selected from the group consisting of ethanol, 2-butoxyethanol, t-butanol, n-propanol, 1,4 butadiol, ethylenediamine, ethylene glycol, 2,2 diphenylethanol, 2-piperidinethanol, 2-methoxyethanol, and combinations thereof;
- and wherein the first organic hydrogen donating solvent is optionally acidified, and
- from about 5 to about 10 percent by weight based on the total weight of the co-solvent of a second organic hydrogen donating solvent, wherein the second organic hydrogen donating solvent comprises ethyl lactate, ethyl laurate or a solvent having the formula:
- wherein R1 is a C1 to C6 hydrocarbon moiety,
- wherein R2 is a C1 to C3 hydrocarbon moiety, and
- wherein R3 is selected from hydrogen and a C1 to C3 hydrocarbon moiety.
6 more elements
Dependencies are inferred from the claim text.