Abstract: A method for cleaning and conditioning air in which the air is first passed through or along water in a reservoir, then passed through a layer of soil to clean and condition the air, and then passed through a layer of a germ-reducing material.

Abstract: Subterranean gases are removed from a building site by drawing air from ambience and passing the air through an air permeable bed of materials (10) located at the site as a diffused air stream. The subterranean gases become entrained in the diffused air stream which is then exhausted from the bed and removed from the site. A system for practicing the method has slotted air injection conduits (12) interspersed between slotted air extraction conduits (15) embedded in an air permeable bed of materials beneath the building. The system has means (18) for drawing air from the extraction conduits and removing it from the site.

Abstract: A method of anti-pollution for exhaust and a device thereof provide a closed housing filled with filter materials and clearances between the filter materials. A discharge part of the exhaust is connected to an inlet hole disposed at an end of the housing and an outlet hole is disposed at another end of the housing for guiding the treated exhaust out. The exhaust is guided into the housing and a plurality of contaminating particles in the exhaust are left in the housing and the pollution resulting from the treated exhaust can be reduced greatly before being guided out from the housing.

Abstract: The present invention relates to a method for treating air with an iodinated resin to remove contaminants contained in the air. The iodinated resin is an iodinated anion exchange resin. The present invention also relates a system for treating air. The system comprises a means for providing an air path for air to move through, and an iodinated resin disposed in the air path.

Abstract: Disclosed is a device and method for filter particulates contained in exhaust gas exhausted from a combustor in an effective manner. The particulate filtering device includes: a filter part disposed on a predetermined position of an exhaust passage to which particulates produced from a combustor are exhausted and having a predetermined volume in which the particulates are filtered; and a support part with which the filter may be of a predetermined shape.

Abstract: The invention concerns a method for capturing very fine particles generated by a process using a supercritical pressurized fluid and a device therefor. Said method is characterized in that it consists in percolating, in a capture chamber, said fluid loaded with particles through a receptor bed consisting of granules.

Abstract: Filter medium includes at least two kinds of filter media particles. A first plurality of filter media particles includes an extended surface area substrate comprising at least one transition metal impregnant. A second plurality of filter media particles includes an extended surface area substrate comprising a tertiary amine impregnant. In preferred embodiments, at least one and preferably both of the kinds of filter media particles is/are substantially free of chromium, and more preferably contain no detectable chromium. The filtering medium has very broad filtering capabilities. The filtering medium successfully achieves performance levels mandated both by applicable industrial filter approval specifications and by international military filter performance specifications.

Abstract: A gas condensing and cooling system for cooling hot vaporous emissions from a hot vaporous emissions source to a level below prescribed regulatory limits that includes a cooling unit that operates using a readily available pressurized natural gas as the refrigerant element within the cooling unit and includes a multi-chamber condenser unit having a number of chambers each containing a volume of porous rock suspended above a liquid barrier.

Abstract: A method for the use of a porous, preferably dimensionally stable, particulate material in a packed filter bed for separating a disperse liquid phase from a gas and/or separating a disperse liquid phase from a liquid, with the average size of the particles being in the range of from 0.1 to 10 mm and the internal surface area of the material being such that, after it has been filled with the disperse liquid phase to be separated and placed, as a packed bed, at a distance of from R to r from the center in a centrifuge rotating at an angular velocity w, for which it holds that0<w.sup.2 (R.sup.2 -r.sup.2).ltoreq.20 (rad/s).sup.2 m.sup.2,wherein w stands for the angular velocity (in rad/s) and R and r represent the largest and the smallest radius (in m), respectively, of the material in the centrifuge, at least 1% of the liquid will have been separated after 5 minutes, while at least 10% of the liquid will have been separated after 60 minutes is disclosed.

Abstract: According to the present invention, ceramics which are prepared by calcining a composition comprising raw ceramic materials and a microorganism and/or culture fluid thereof, wherein the microorganisms is capable of producing an antioxidation material. The ceramic of the present invention possesses a variety of activities of, for instance, improving the soil, decomposing sewage or sludge, and deodorizing an unpleasant odor.

Abstract: A method and apparatus for glass manufacture is described having batch preheating and reduced pollution emission. The apparatus includes two modules containing pelletized glass and/or cullet. One module functions as a pelletized glass preheater, and the other as a filter for removing pollution emissions from furnace exhaust gases. The modules are switchable, such that the preheating module can be converted to a filter module, and the filter module converted to a preheating module, thus allowing periodic cleaning and routine maintenance.

Abstract: A filter-purifier that removes particles as well as trace amounts of moisture, oxygen, and other chemical impurities from a gas stream. The filter-purifier includes a removable canister that contains a purifying medium and a pair of sealing poppet valves that automatically close when the canister is removed from an in-line block body. The block body includes gas line fittings with close gland-to-gland separations, since the canister is off to one side and not positioned directly in line between the glands.

Abstract: The hot raw gas, which contains slag droplets is conducted downwardly in an entrance chamber of a slag separator through a first bed of packings into a flow-deflecting space, in which the raw gas is upwardly deflected and then flows upwardly in an exit chamber through a second bed of packings to a gas outlet. The effective velocity of flow of the raw gas in the first bed is 1.5 to 10 times its effective velocity of flow in the second bed. Liquid slag is drained from the flow-deflecting space.

Abstract: A process for impregnating zeolite with a quaternary ammonium cation (QAC) and then coating the impregnated zeolite with permanganate (such as potassium permanganate), and for impregnating zeolite with permanganate and then coating the impregnated zeolite with a QAC, and coated, impregnated zeolite crystals resulting from either process. Either coating acts as a protective agent for the impregnating substance in each zeolite crystal's interior, and allows regulated time release control of the impregnating substance, thus permitting a controlled diffusion (or absorption) rate in applications in which the coated, impregnated zeolite is employed to absorb contaminants from air or water. Combinations of coated and uncoated zeolite crystals can be chosen to match specific environmental circumstances calculable by analysis of the air or water to be treated.

Abstract: The invention relates to a bioreactor unit for the aerobic biological treatment of hydrocarbon contaminated waste water and off-gases. The bioreactor comprises a biotreatment chamber comprising a vertically extending housing unit forming the walls, floor and ceiling of the biotreatment chamber. The housing unit also comprises a door for accessing the biotreatment chamber. The biotreatment chamber also comprises waste water inlet means for discharging waste water under pressure from the upper portion of the biotreatment chamber, onto a plurality of superimposed water treatment trays disposed substantially horizontally inside the chamber, the water treatment trays being adapted for retrieval from the biotreatment chamber through the door of the housing unit. Each water treatment tray has at least one bottom porous section adapted to receive contact media.

Abstract: A filter plate for removing hydrocarbons and other contaminants from solutions and gases comprises a plate provided with rows of alternate perpendicular and parallel, substantially linear openings. A liquid and gas filtering apparatus comprises a container provided with the filter plate of the invention, means for inflow and outflow of water or air and means for introducing and removing filtering materials. A method of purifying a solution or a gas comprises removing impurities by passing the solution or gas through a filtering material supported on the filter plate of the invention. A method of removing hydrocarbons and other contaminants from a solution or gas comprises passing the solution or gas through a filtering material supported on the present filter plate. A method of reducing clogging when removing contaminants from a solution comprises passing the solution through a filtering material supported on the filter plate of this invention.