Abstract: The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

Abstract: The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

Abstract: A supercritical water oxidation (SCWO) system with a well-mixed SCWO reactor, a feedstock supplied to the well-mixed SCWO reactor by a feedstock supply line, a recirculation loop flow regulator in fluid communication with the well-mixed SCWO reactor; and a recirculation loop which includes the well-mixed SCWO reactor and the recirculation loop flow regulator, such that the recirculation loop flow regulator receives an oxidant from an oxidant supply line and a first portion of a reactor effluent from the well-mixed SCWO reactor and supplies the oxidant and the first portion of the reactor effluent to the well-mixed SCWO reactor. The SCWO system also includes a heat transfer unit operationally associated with the well-mixed SCWO reactor which performs at least one of: heating the well-mixed SCWO reactor and cooling the well-mixed SCWO reactor.

Abstract: A system for on-line monitoring of a supercritical water oxidation (SCWO) process, the system including an SCWO reactor, a feedstock supply line which supplies a feedstock to the SCWO reactor, an oxidant supply line which supplies an oxidant to the SCWO reactor, at least one sensor which measures at least one parameter of the feedstock and the oxidant, and a controller which determines a Chemical Oxygen Demand (COD) and a Heating Value (HV) of the feedstock based on the at least one parameter, such that the controller adjusts the amount of the oxidant supplied to the SCWO reactor based upon the COD and the HV of the feedstock.

Abstract: A SCWO reactor fouling prevention and mitigation system that includes at least one feedstock tee which provides a feedstock to the SCWO reactor, at least one feedstock tee pressure sensor, such that each of the at least one feedstock tee has one of the at least one feedstock tee pressure sensor, at least one pressure sensor proximate a SCWO reactor inlet, and at least one pressure sensor proximate a SCWO reactor outlet. Also included is a controller which triggers a Clean In Place (CIP) procedure when there is a pressure difference between any two of the following, the SCWO reactor inlet, the at least one feedstock tee, and the SCWO reactor outlet. The CIP procedure includes washing a portion of the SCWO reactor with a fluid supplied through the at least one feedstock tee.

Abstract: The present disclosure describes intravascular oxygenation systems and methods with one or more of improved oxygen diffusion flux, improved resistance to bubble formation on the surface of non-porous hollow fibers, and reduced size. The systems and methods include a pneumatic inlet coupled to a pneumatic source that provides a gas containing oxygen at a high pressure. A plurality of hollow fiber membranes (HFM) are in pneumatic communication with the pneumatic inlet to receive the gas containing oxygen and with an outlet to exhaust a partially deoxygenated gas. An electronic controller drives the motor to oscillate the plurality of HFMs to cause a diffusive flux of the gas containing oxygen from the plurality of HFMs into a region of interest of a subject. The electronic controller may drive the motor according to an oscillation pattern, which may include a macro-oscillation with superimposed micro-oscillations.

Abstract: A waste processing system includes a reactor including an inlet end and an outlet end configured to discharge reactor effluent. The inlet end includes a mixing unit having an oxidizing material input and a waste stream input. The reactor oxidizing material input is configured to receive reactor oxidizing material at a temperature greater than 200° C. and at a pressure greater than 60 atm. A second waste stream input is positioned between the reactor inlet end and the reactor outlet end.

Abstract: A waste processing system includes a reactor including an inlet end and an outlet end configured to discharge reactor effluent. The inlet end includes a mixing unit having an oxidizing material input and a waste stream input. The reactor oxidizing material input is configured to receive reactor oxidizing material at a temperature greater than 200° C. and at a pressure greater than 60 atm. A second waste stream input is positioned between the reactor inlet end and the reactor outlet end.

Abstract: A gas sensing device (nanosensor) includes a substrate with at least a pair of conductive electrodes spaced apart by a gap, and an electrochemically functionalized semiconductive nanomaterial bridging the gap between the electrodes to form a nanostructure network. The nanomaterial may be single-walled carbon nanotubes (SWNTs) functionalized by the deposition of nanoparticles selected from the group consisting of an elemental metal (e.g., gold or palladium), a doped polymer (e.g., camphor-sulfonic acid doped polyaniline), and a metal oxide (e.g. tin oxide). Depending on the nanoparticles employed in the functionalization, the nanosensor may be used to detect a selected gas, such as hydrogen, mercury vapor, hydrogen sulfide, nitrogen dioxide, methane, water vapor, and/or ammonia, in a gaseous environment.

Abstract: A gas sensing device (nanosensor) includes a substrate with at least a pair of conductive electrodes spaced apart by a gap, and an electrochemically functionalized semiconductive nanomaterial bridging the gap between the electrodes to form a nanostructure network. The nanomaterial may be single-walled carbon nanotubes (SWNTs) functionalized by the deposition of nanoparticles selected from the group consisting of an elemental metal (e.g., gold or palladium), a doped polymer (e.g., camphor-sulfonic acid doped polyaniline), and a metal oxide (e.g. tin oxide). Depending on the nanoparticles employed in the functionalization, the nanosensor may be used to detect a selected gas, such as hydrogen, mercury vapor, hydrogen sulfide, nitrogen dioxide, methane, water vapor, and/or ammonia, in a gaseous environment.

Abstract: A biofiltration apparatus and method for reducing methyl bromide concentration in a volume of a gas are disclosed. The apparatus includes a housing and a substrate component located in the housing. The substrate component includes a population of methyl bromide degrading microorganisms. The housing receives a volume of contaminated gas, such as exhaust from a fumigation site, through a contaminated gas inlet. The contaminated gas is exposed to the methyl bromide degrading microorganisms where the methyl bromide is biodegraded. The filtered gas, or the gas with a reduced methyl bromide concentration, is then directed out of the housing. The apparatus may also include a contaminated gas load dampening device.

Abstract: A biofiltration apparatus and method for reducing methyl bromide concentration in a volume of a gas are disclosed. The apparatus includes a housing and a substrate component located in the housing. The substrate component includes a population of methyl bromide degrading microorganisms. The housing receives a volume of contaminated gas, such as exhaust from a fumigation site, through a contaminated gas inlet. The contaminated gas is exposed to the methyl bromide degrading microorganisms where the methyl bromide is biodegraded. The filtered gas, or the gas with a reduced methyl bromide concentration, is then directed out of the housing. The apparatus may also include a contaminated gas load dampening device.