US 12,017,938 B2 · Composition with a time release material for removing halogenated hydrocarbons from contaminated environments

Abstract

A composition for remediation of soil and groundwater containing halogenated compounds. The remediation composition includes an elemental iron-based composition, which may include activated carbon capable of absorbing the halogenated compounds with numerous pores impregnated with elemental iron. The remediation composition further includes a first bioremediation material including a blend of one-to-many organisms capable of degrading the halogenated compounds. The remediation composition includes an organic compound or polymeric substance and a second bioremediation material including a blend of one-to-many organisms capable of degrading the organic compound or polymeric substance over time (e.g., 20 to 365 or more days to provide a time release substrate-creating material or platform) into smaller molecules or compounds used by the organisms in the first bioremediation material while degrading the halogenated compounds. The organic compound may be a complex carbohydrate such as food grade starch, chitin, or other complex carbohydrate such as one with low water solubility.

Claims21

Dependent claims

A remediation composition, comprising:

an adsorbent for adsorbing at least one halogenated compound, wherein the adsorbent is impregnated with a metal;
a first set of one or more microorganisms able to degrade at least one halogenated compound, wherein the first set of one or more microorganisms includes acetogens;
and
a time release compound, combined with the first set of one or more microorganisms, comprising:
a polymeric substance comprising at least one of a polyamide, a polypeptide, and a polysaccharide;
and
a second set of one or more microorganisms mixed with the polymeric substance, wherein the second set of one or more microorganisms degrades, over a period of time, the polymeric substance into smaller molecules or compounds that donate electrons for use by the first set of one or more microorganisms during degradation of the halogenated compound and wherein the period of time has a length of at least 20 days.

4 more elements

Dependencies are inferred from the claim text.

Composition with a time release material for removing halogenated hydrocarbons from contaminated environments

Life of this patent

Composition with a time release material for removing halogenated hydrocarbons from contaminated environments

Life of this patent

Abstract

Claims21