Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.

Abstract: Aerobic processes are disclosed for the treatment of wastewater which contains at least one substrate comprising at least one of organocarbon component and ammonium cation. A bioreactor is used for the treatment which contains ME biocatalysts to provide high bioreactor bioactivity density. The processes reduce sludge generated and are capable of effecting the metabolic oxidation at low dissolved oxygen concentrations.

Abstract: Bioconversion processes are disclosed in which biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are cycled between at least two different fluid media for the bioconversion of one or more substrates to one or more bioproducts. The processes are particularly attractive for using gas phase or using liquid feedstocks containing the substrate.

Abstract: Bioconversion processes are disclosed in which two or more biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are used in a common aqueous medium. In one exemplary embodiment, one biocatalyst produces a chemical product that is a substrate to at least one other biocatalyst. In another exemplary embodiment, the feed includes two or more substrates and one biocatalyst bioconverts at least one substrate and another biocatalyst bioconverts at least one other substrate. This aspect is particularly useful for treating water including disparate contaminants by metabolic degradation in a bioreaction zone including multiple types of biocatalysts.

Abstract: Overlay processes are disclosed for making ethanol that not only increase ethanol conversion but do so in a cost effective manner with a reduction in energy requirements per unit of ethanol production. The processes can provide, if desired, higher organic compound as a co-product with ethanol.

Abstract: Overlay processes are disclosed for making ethanol that not only increase ethanol conversion but do so in a cost effective manner with a reduction in energy requirements per unit of ethanol production. The processes can provide, if desired, higher organic compound as a co-product with ethanol.

Abstract: Aerobic processes are disclosed for the treatment of wastewater which contains at least one substrate comprising at least one of organocarbon component and ammonium cation. A bioreactor is used for the treatment which contains ME biocatalysts to provide high bioreactor bioactivity density. The processes reduce sludge generated and are capable of effecting the metabolic oxidation at low dissolved oxygen concentrations.

Abstract: Bioconversion processes are disclosed in which biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are cycled between at least two different fluid media for the bioconversion of one or more substrates to one or more bioproducts. The processes are particularly attractive for using gas phase or using liquid feedstocks containing the substrate.

Abstract: Bioconversion processes are disclosed in which biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are cycled between at least two different fluid media for the bioconversion of one or more substrates to one or more bioproducts. The processes are particularly attractive for using gas phase or using liquid feedstocks containing the substrate.

Abstract: Ethanol is produced at high concentration by the fermentation of sugars using a biocatalyst comprising an open, porous hydrophilic polymeric structure having microorganisms for the bioconversion of sugar irreversibly retained therein in which the microorganisms have undergone phenotypic alteration to enhance tolerance to ethanol.

Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.

Abstract: Butanol is produced by the bioconversion of substrate using a biocatalyst comprising an open, porous hydrophilic polymeric structure having microorganisms for the bioconversion irreversibly retained therein wherein the microorganisms have undergone phenotypic alterations which includes enhanced tolerance to butanol.

Abstract: Processes are disclosed for bioconversion processes in which a ME biocatalyst is surrounded by water-insoluble liquid during the bioconversion to facilitate one or more of mass transfer of substrate to and bioproduct from the biocatalyst and the separation and recovery of bioproduct from the water-insoluble liquid. The ME biocatalyst irreversibly retains microorganizms for the bioconversion and has, in its interior, an aqueous environment.

Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.

Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.

Abstract: Bioconversion processes are disclosed in which biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are cycled between at least two different fluid media for the bioconversion of one or more substrates to one or more bioproducts. The processes are particularly attractive for using gas phase or using liquid feedstocks containing the substrate.

Abstract: NDMA can be degraded by Rhodococcus sp. in the presence of sufficient amounts of at least one oxygenated hydrocarbon selected from the group of secondary alcohols, ketones and aldehydes and having up to five carbon atoms.

Abstract: Bioconversion processes are disclosed in which two or more biocatalysts including microorganisms or isolated enzymes that are substantially irreversibly retained in the interior of an open, porous, highly hydrophilic polymer are used in a common aqueous medium. In one exemplary embodiment, one biocatalyst produces a chemical product that is a substrate to at least one other biocatalyst. In another exemplary embodiment, the feed includes two or more substrates and one biocatalyst bioconverts at least one substrate and another biocatalyst bioconverts at least one other substrate. This aspect is particularly useful for treating water including disparate contaminants by metabolic degradation in a bioreaction zone including multiple types of biocatalysts.

Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.

Abstract: Processes are disclosed for bioconversion processes in which a ME biocatalyst is surrounded by water-insoluble liquid during the bioconversion to facilitate one or more of mass transfer of substrate to and bioproduct from the biocatalyst and the separation and recovery of bioproduct from the water-insoluble liquid. The ME biocatalyst irreversibly retains microorganisms for the bioconversion and has, in its interior, an aqueous environment.