Abstract: An air-conditioning system of a substrate processing apparatus includes an air inlet line for providing air to a clean room. A contamination control apparatus for removing contaminants in the air is connected to the air inlet line. A controller controls temperature and humidity of the air without the contaminants. An air outlet line provides the air having the controlled temperature and humidity to a substrate processing chamber that is disposed in the clean room. The contamination control apparatus includes a spray unit having at least one nozzle that sprays water. At least one eliminator that traps the water for capturing contaminants in the air and drops the trapped water into a tank. A water circulation unit provides the water that includes an additive for controlling pH of the water to the spray unit.

Abstract: An air filtering apparatus including a housing having an air suction port and air blow-out port, an electrolytic bath for generating electrolytic water, a gas-liquid contact member disposed in the housing, an electrolytic water supply unit for supplying the electrolytic water to the gas-liquid contact member so that the electrolytic water infiltrates into the gas-liquid contact member, an air blowing fan for bringing indoor air sucked from the air suction port into contact with the electrolytic water infiltrating in the gas-liquid contact member and blowing out the indoor air from the air blow-out port, a water receiving portion for receiving the electrolytic water passed through the gas-liquid contact member, and a foreign material removing mechanism for removing foreign materials contained in the electrolytic water. The foreign material may be a filter member disposed in front of the gas-liquid contact member, or a dam member disposed in the water receiving portion.

Abstract: A process and corresponding apparatus for dehydrating gas, especially natural gas. The process includes an absorption step and a membrane pervaporation step to regenerate the liquid sorbent.

Abstract: The portable air cleaning apparatus includes a body casing that has a base having a generally vertical sidewall and removable top wall. A fluid spray chamber has a recirculation system that supplies a fluid to at least one spray nozzle through which the fluid is sprayed into the fluid spray chamber. An air driving mechanism directs ambient air into an air inlet through the fluid spray chamber and discharges at least partially purified air out a plurality of air outlets. At least one inlet filter is positioned between the air inlet and a reservoir inside the spray chamber to create a counter-current contact between the air and the fluid to maximize the removal of particulates from the air. At least one outlet filter is positioned below the air outlets to further remove particulate matter from the air flow being discharged through the air outlets.

Abstract: A system and method of cleaning a gas of undesired particulate, aromas, and gases is disclosed. The invention uses a centrifugal scrubbing space to liquid wet a gas and includes a container for containing a liquid with a pump to circulate the liquid. The gas is pumped from outside the container, through an inlet cylinder, a fan wheel, a scrubbing space, over a surface of the liquid, through a cyclone space, and out a top outlet. The liquid may be pumped with a standard pump, a cone-shaped rotatable case attached to the fan wheel, or a pump with a non-case rotatable case and an impeller attached to a same shaft as the fan wheel. The gas inlet may be positioned below or above the apparatus, and the fan motor may be positioned inside or outside the apparatus.

Abstract: An air cleaning apparatus is disclosed which, in one embodiment, has: an inlet for ambient air; an outlet for purified air; a mechanism for the uptake of a scrubbing liquor and for the removal of impurities dissolved or dispersed in the ambient air by contact with said scrubbing liquor; an inlet for feeding a scrubbing liquor from a scrubbing liquor feeding tank; an outlet for discharging used scrubbing liquor; and a blower for drawing ambient air into the apparatus, flowing the air through the apparatus and discharging the purified air from the apparatus. A kit including an apparatus as described above and a refill of scrubbing liquor ingredients, or of a scrubbing liquor concentrate or of a ready-to-use scrubbing liquor is also disclosed.

Abstract: A gas reduction apparatus 12 is provided for reducing the amount of gas 15 emitted from a cooling tower 10 into the atmosphere. The apparatus 12 in accordance with the principles of this invention includes a first air conduit 13 which collects the gas 15 and chemical particles therein released from the cooling tower 10 before they are released into the atmosphere. The conduit 13 then provides a path for the gas 15 and chemical particles formed therein to flow to a liquefier 16. The liquefier 16 converts the gas 15 to a liquid 17. A filter 32 is coupled adjacent the liquefier 16 to separate the chemical particles released into the liquefier from the liquid 17 formed in the liquefier. The liquid 17 is then directed through an outlet conduit 34 to a cooling tower reservoir 36 where it finds itself back into the cooling tower 10.

Abstract: An apparatus and method for recovering a clean liquid condensate from a synthesis gas at elevated temperatures and pressures. The apparatus includes at least one heat exchanger for reducing the temperature of the synthesis gas down to below 200° F. (93° C.) so as to form a syngas condensate at elevated pressure. The syngas condensate is flashed so that it separates into a liquid phase condensate and a gas phase. The liquid phase condensate is primarily water, dissolved ammonia and particulates. The gas phase contains carbon monoxide, carbon dioxide, various sulfur containing compounds and trace amounts of other compounds that may have been dissolved in the syngas condensate. The gas phase is removed from the flash tank and sent to a sour gas treatment unit and/or flare. The liquid phase condensate is then filtered so as to remove larger sized particulates.

Abstract: An ion exchange scrubber has a housing, and a partition plate installed within the housing. The partition plate partitions an inner space of the housing in longitudinal direction into two chambers that are filled with a predetermined amount of aqueous solution. The upper end portions of the two partitioned chambers communicate with each other. At least one cartridge is installed at the upper portion and has an ion exchange resin. The ion exchange resin removes a harmful substance contained in the gas. By repeatedly pumping the aqueous solution from one side chamber to the other side chamber, and immersing and cleaning the contaminated ion exchange resin in the aqueous solution, the contaminated gas can be effectively processed even with a small amount of water.

Abstract: A slurry monitoring system (20) is provided. A filter (34) encompasses a filter chamber (36) containing a purge piston (66). During a monitor operation (100), the purge piston (66) is retracted, and slurry (32) enters the filter chamber (36) through the filter (34), then passes into an outlet pipe (60), where a characteristic of the slurry (32) is monitored by a monitoring device (62). During a purge operation (102), a flush valve (54) is opened to allow water (56) to pass into the filter chamber (36) through an inlet pipe (52). The purge piston (66) is extended to force filtered slurry (110) from the filter chamber (36). The water (56) dilutes filtered slurry (110) remaining in the filter chamber (36). The flush valve (54) is then close and the purge piston (66) retracted. This forces diluted slurry (140) to pass out of the filter (34). This purges the filter (34). Diluted slurry (140) also passes into the outlet pipe (60), which purges the outlet pipe (60) and monitoring device (62).

Abstract: An air cleaning apparatus draws air through a convoluted air channel defined by a plurality of non-permeable baffles. The baffles are arranged so that the air stream must change direction several times before exiting the apparatus. A fluid curtain is disposed along at least a part of the convoluted channel to remove particulate material from the air stream. One preferred embodiments causes fluid to flow over the baffles to provide a plurality of fluid curtains arranged along the air channel.

Abstract: An air cleaner includes a scrubber, a water purifier and a water feeder. The scrubber includes a housing being provided with a central tank and an air outlet. A barrel is disposed inside the housing so as to form a scrubbing room with the central tank. An air pump is disposed on top of the housing for pumping air into the scrubbing room via a pipe extending downward to the central tank so as to force scrubbing water contained in the central tank sprayed upward and scattered. One or a plurality of perforated middle barrels are disposed inside the scrubbing room in a manner coaxial with the central tank for dividing the sprayed water into fine drops. The water purifier have a filtering layer and an activated carbon part for purifying the scrubbing water. A water feeding means is disposed on the upper portion of the scrubbing room for supplying scrubbing water.

Abstract: It is an object of the present invention to provide a water-based paint recycling method with which there is no need to set up the water-based paint application booth close to the condensing separator, which affords greater freedom in installation. The present invention is a water-based paint recycling method in which, in a water-based paint application booth in the bottom of which booth water is pooled, the paint mist produced when a-water-based paint is applied is trapped by this booth water, the booth water containing this trapped paint mist is treated by the condensing separator, and the resulting concentrate and filtrate are reused, wherein this water-based paint recycling method is characterized in that the water-based paint application booth and the condensing separator are independent, not being connected by piping.

Abstract: An air cleaning apparatus draws air through a convoluted air channel defined by a plurality of non-permeable baffles. The baffles are arranged so that the air stream must change direction several times before exiting the apparatus. Air cleaning means in the form of a fluid curtain is disposed along at least a part of said air channel. One preferred embodiment causes fluid to flow over the baffles to provide a plurality of fluid curtains arranged along the air channel.

Abstract: A system and method for recycling basement water to cool hot gases released from an exhaust stack is disclosed having a storage tank for collecting and storing basement water, one or more spray nozzles attached to the interior of the exhaust stack, and one or more pumps and pipe lines for transporting the basement water from the storage tank to the spray nozzles attached to the interior of the exhaust stack, wherein upon injecting the basement water into the exhaust stack, the basement water is immediately evaporated by hot gases released from the exhaust stack.

Abstract: The invention is a humidification and filtration mask having an open cell foam reservoir attached to the facial or inner surface of a paper filtration mask. The reservoir provides for evenly wetting the paper mask by capillary action, after being charged with water. The device offers low inspiratory airway resistance compared to other art and is lighter and less costly.

Abstract: An air filtration system for filtering smoke from the air. The system includes a filter tank for holding a volume of water. A bulkhead wall therein divides the filter tank into first and second compartments and has a hole therethrough to permit passage of water between the first and second compartments of the filter tank. A mesh screen substantially covers the hole of the bulkhead. An air intake conduit is fluidly connected to the first compartment of the filter tank for drawing unfiltered air and debris into the filter tank from a location such as a room. A water supply conduit is fluidly connected to the filter tank for supplying water to the filter tank. A vacuum device is provided for drawing air out of the filter tank. The vacuum device has an intake fluidly connected to the second compartment of the filter tank for drawing air from the filter tank into the vacuum device. The vacuum device has a first return conduit for receiving air drawn into the vacuum device through the intake of the vacuum device.

Abstract: A system and method for treating process gas streams containing isopropyl alcohol (IPA) to reduce the concentration of IPA therein. The invented system includes a scrubber unit that receives a process stream containing a concentration of IPA and reduces the concentration of IPA therein to below a determined threshold. The scrubber includes a reverse osmosis assembly that significantly reduces water consumption for the scrubbing process as compared to conventional once-through systems. The system may be operated at an elevated pH to prevent biofouling from inhibiting the operation of the reverse osmosis assembly. The system may contain a softening step on the make up water system to prevent scaling in the reverse osmosis system and a softening step on a sidestream of the scrubber water recirculation loop to reduce scrubber tower salting/scaling and to control the pH of the scrubbing liquid.