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US 12,673,229 B2Granted
Layered absorbent substrate incorporating activated carbon and superabsorbent materials
AssigneeStar Liberty LLC
InventorGregg R. Short
Life of this patent
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Abstract
Various examples of waste disposal substrates are disclosed. The waste disposal substrates include (a) at least one layer of fibers, (b) at least one layer containing activated carbon; and (c) at least one layer containing superabsorbent particles. The substrate can absorb liquid radioactive medical waste to facilitate safe disposal of liquid radioactive medical waste. The liquid radioactive medical waste, or a component of the liquid radioactive medical waste, can be collected, dissolved, adsorbed, inactivated, destroyed, and/or disposed of within the waste disposal substrate.
Claims18
A waste disposal substrate comprising:
- (a) at least one layer of fibers,
- (b) at least one layer comprising activated carbon;
- and
- (c) at least one layer comprising superabsorbent particles, wherein said waste disposal substrate further comprises liquid radioactive medical waste therein or thereon, wherein the waste disposal substrate comprises (a) two outermost nonwoven layers, (b) two nonwoven layers containing activated carbon adjacent to and between the two outermost nonwoven layers, (c) two layers containing a mixture of activated carbon and superabsorbent particles adjacent to and between the two nonwoven layers containing activated carbon, and (d) two interior nonwoven layers positioned between the two layers containing a mixture of activated carbon and superabsorbent particles.
1 more element
Dependencies are inferred from the claim text.