A method of cleaning naturally occurring radioactive materials (NORMs) from filtration socks utilizes a system that is equipped with a centrifuge, a disposal well, a surfactant and heated water. Through oil production, filtration socks become saturated with oil and NORMs. Typically, the used filtration socks are disposed of in a radioactive landfill or other proper disposal means. Through the method of cleaning NORMs, the used filtration socks are placed into a washing drum within a centrifuge and agitated with a surfactant and heated water to extract the NORMs from the used filtration socks. The centrifuge is spun to eject the waste solution from the washing drum, where the waste solution is pumped out of the centrifuge and into a class II disposal well to properly dispose the NORMs and brine from oil production processes. Cleaned filtration socks are then reusable or disposable in a more convenient manner.

A method of recovering crude oil from crude oil drenched adsorbent and simultaneously regenerating the adsorbent to render it suitable for re-use in crude oil adsorption. The method includes contacting crude oil drenched adsorbent, in the form of solid nanofibrous expanded polystyrene drenched with adsorbed crude oil, with a non-polar solvent, thereby obtaining regenerated crude oil lean adsorbent and crude oil rich solvent.

A system for chemical compounds collection, deposition and separation in a fluid stream includes: a stack of layers with a number of window openings, allowing the fluid stream to pass through, neighboring layers forming an angle 0<90, the angle and the distance between neighboring layers being variable and controlled, so as to control the velocity of the fluid stream; spreading apertures in between the layers, and adapted to spray liquid chemical solution inside the closed volume, so as to create a thin film on the surfaces of the layers and lateral walls of the closed volume; a system for generating droplets of chemical solution upstream of the stack, to be mixed in the fluid stream; particles of the chemical compounds being collected by impaction with the droplets, and by diffusion on the thin film, and counter flowing with the chemical solution.

Each cell is pressurized with gas from outside of the cell, the amount of permeation of the gas permeated into each cell is measured, and a cell having the amount of permeation greater than (average value of all cells+A) (wherein A is a predetermined value of ? to 6?, where ? is the standard deviation) is considered to be defective. Alternatively, pressure is reduced for each cell, the degree of vacuum in each cell is measured, and a cell having the degree of vacuum worse than (average value of all cells+A) is considered to be defective. Then, a polymer compound is poured into the defective cells of the monolithic separation membrane structure and cured so that the defective cells are sealed. Alternatively, the polymer compound formed in advance as the sealing member is inserted into the defective cells to seal the defective cells.

A cabin air filtration system and method for regenerating a cabin air filtration system are disclosed. The filtration system includes a frame, and a renewable sorption layer within the frame, the renewable sorption layer configured to clean air from one or more of outside of an automobile and inside an automobile. The cabin air filtration system for an automobile can include a first layer, the first layer configured to particulates, and a second layer, the second layer configured to remove volatile compounds and gases. The method includes placing a renewable sorption layer within a frame in an oven, the renewable sorption layer configured to filter air from one or more of outside of the automobile and inside the automobile; creating a vacuum within the oven; and heating a source of water within the oven to perform a steam regeneration treatment on the renewable sorption layer.

A cabin air filtration system and method for regenerating a cabin air filtration system are disclosed. The filtration system includes a frame, and a renewable sorption layer within the frame, the renewable sorption layer configured to clean air from one or more of outside of an automobile and inside an automobile. The cabin air filtration system for an automobile can include a first layer, the first layer configured to particulates, and a second layer, the second layer configured to remove volatile compounds and gases. The method includes placing a renewable sorption layer within a frame in an oven, the renewable sorption layer configured to filter air from one or more of outside of the automobile and inside the automobile; creating a vacuum within the oven; and heating a source of water within the oven to perform a steam regeneration treatment on the renewable sorption layer.

A method is provided for regenerating an odor absorbent in a motor vehicle HVAC system. That method includes the step of heating and regenerating the odor absorbent using heat from a heater core of the HVAC system.

A method is provided for regenerating an odor absorbent in a motor vehicle HVAC system. That method includes the step of heating and regenerating the odor absorbent using heat from a heater core of the HVAC system.

A system includes an engine cover covering a side-facing rotorcraft engine and having an opening and an ice protection member mounted on the engine cover between the opening and the engine, an area of the ice protection member smaller than an area of the opening. The ice protection member is configured to partially cover the opening to prevent ice having a particular size from entering into the engine and to allow air flow downstream into the engine.

An exhaust gas purification device, including a diesel particulate filter (DPF) for collecting particulate matter contained in an exhaust gas, a forced regeneration unit or performing forced regeneration, a capacitance detection unit for detecting a capacitance of the DPF, a total accumulated amount estimation unit for estimating a total amount of accumulated particulate matter and ash collected in the DPF on the basis of the detected capacitance, and an ash accumulated amount calculation unit for calculating an amount of accumulated ash by using, as the amount of accumulated ash, the total amount of accumulation which is estimated when the forced regeneration finishes.