Bioremediation using co-metabolism substrates
AssigneesOregon State University, North Carolina State University
InventorsLewis Semprini, Mitchell Rasmussen, Michael R. Hyman
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Abstract
Certain disclosed embodiments concern a bioremediation composition comprising microbial cells, at least one co-metabolism substrate to induce selected enzyme production by the microbial cells, and a bead or gel encapsulating the microbial cells, such as bacterial or fungi cells, and the at least one co-metabolism substrate. For certain embodiments, the substrate is a slow release compound, such as an orthosilicate that hydrolyzes to produce an alcohol growth substrate. Embodiments of a method for using the composition to transform contaminants of concern also are disclosed.
Claims2
A composition for remediating 1,4-dioxane, 1,1,1-trichloroethane (1,1,1-TCA) and/or dichloroethene (DCE), comprising:
- microbial cells obtained from Rhodococcus rhodochrous ATCC 21198;
- at least one orthosilicate co-metabolism substrate selected from tetrabutyl orthosilicate (TBOS), tetra-sec-butyl orthosilicate (T2BOS), and combinations thereof, to induce selected enzyme production by the microbial cells;
- and
- a bead having at least one dimension of at least 1 millimeter or greater encapsulating the microbial cells and the at least one co-metabolism substrate.
Dependencies are inferred from the claim text.