Abstract: A filter assembly having anti-rotation features that prevent rotation of a shell relative to a nutplate and a method of forming the disclosed filter assembly are described. The disclosed method radially deforms a flange of the housing to the shape of the pre-formed anti-rotation features, and does not utilize a secondary operation such as a staking operation to stake selected edge portions.

Abstract: Flotation device for the separation (purification or removal) of dispersed particles in a fluid, in particular removal of dispersed oil in water. The device includes a flotation cell (1) with one or more nozzles (4) provided at or near the bottom of the cell for the supply of gas or fluid to the interior of the cell. Further the ceil is provided with an inlet (5) for the fluid to be treated and two or more outlets (6, 7) for the separated products. The flotation cell is in the form of a longitudinal pipe (1), the diameter of which is basically the same as the diameter of the fluid transport or feeding pipe (2) connected to the inlet (5) of the pipe. The nozzles (4) for the supply of gas or fluid are provided at distance along the bottom of the pipe.

Abstract: An electrocoagulation apparatus is disclosed integrated with a plate clarifier for effluent treatment. The clarifier includes first and second tanks, an electrocoagulation reactor positioned in the first tank.

Abstract: A device for the intake or manipulation of a fluid, in particular, a liquid, and a method for the production of a device of this type in which a flat, non-preformed covering film is laminated onto a carrier, a three-dimensionally shaped or convex chamber wall being formed solely by means of the laminating process. The chamber wall which forms a boundary of a chamber for the fluid is partially deformable. The device is simple to produce and can be used universally.

Abstract: A filter assembly where the filter cartridge is secured to the nutplate and a seal is provided between the filter cartridge and the nutplate. The sealing relationship between the filter cartridge and the nutplate is maintained during use of the filter assembly without using a spring engaged with the filter cartridge that biases the filter cartridge into engagement with the nutplate.

Abstract: A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. The membranes have an outside diameter of about 200 microns or less and occupy between 0.5% and 4% of the tank volume. A biofilm supported on the membranes occupies between about 40% and 80% of the volume of water to be treated in a reactor. The membranes may be oriented generally vertically and a spreader may be located near the bottom of the apparatus to disperse the membranes. Wastewater treatment processes are described. A process to dentrify water or treat oxidized contaminants comprises introducing hydrogen into an inner volume of the membranes to grow autotrophic organisms in the biofilm near the membrane and heterotrophic organism near the water. Another process is operated at a biomass concentration of at least 10 g/L and up to about 40 g/L to maintain a biofilm having a surface area of over 1000 square metres per cubic metre of tank volume.

Abstract: The disclosed process and system are used for the denitrification of wastewater. The system comprises: an influent concentration analyzer for measuring an influent dissolved oxygen concentration, an influent nitrate concentration, and an influent nitrite concentration; and a feed chemical controller for providing a feed chemical at a controlled rate.

Abstract: The invention relates to a method and a device for purifying liquid effluents, in which water is separated from substances by performing, in a single vertical enclosure (3), a vertical bubbling in the effluents fed at a flow rate d. The enclosure has a free surface and includes at least two compartments (4, 5, 6, 7) communicating together for enabling a circulation between the compartments successively from the top to the bottom and from the bottom to the top between the lower portion thereof and a medium level at a flow rate D at least three times higher than the flow rate d. The supernatant phase is continuously discharged and a hydraulic or gaseous chemical oxidation of said effluents is simultaneously carried out in the same enclosure, the chemical oxidation rate and the bubble flow rate and size being selected in order to progressively obtain a separation of the solid/liquid and liquid/liquid phases at the surface of the enclosure for obtaining a COD below a predetermined threshold.

Abstract: Methods and apparatuses for treatment of contaminated liquid are provided including an integrated ultra-filtration and clarification apparatus, and an optional integrated electrocoagulation capability. The integrated apparatus comprises an outer tank, an inner casing, and a plurality of ultra-filtration filters contained within the inner casing. Clarification of liquid occurs in the gap between the casing and tank. Solid matter settles, and aggregates in the bottom portion of the tank. The accumulated solid material acts as a secondary filter by pre-filtering the liquid prior to contact with the ultra-filtration filters. Clarified liquid is retained in a chamber of the casing, and the clarified liquid is drawn through the ultra-filtration filters as initiated by a source of vacuum communicating with the ultra-filtration filters.

Abstract: A part washing apparatus includes a centrifugal filter and an ultra filter provided as a single base unit. A washing chamber is provided to enclose one or more industrial parts for cleaning with a washing solution, which is collected in a washer bath. The washing solution is then pumped through a centrifugal filter to remove contaminants from the washing solution and subsequently pumped through an ultra filter a filter configured to remove further contaminants from the washing solution.

Abstract: To provide a purification process where a fluorine-based solvent can be obtained at a high purity by relatively small equipment without using a distillation apparatus. A purification process of a mixed solution containing a fluorine-based solvent which is a process for purifying a fluorine-based solvent from a mixed solution containing a fluorine-based solvent, a water-soluble organic solvent contaminant, an organic contaminant and an ion contaminant, the process comprising: step (1): washing the mixed solution with water to obtain a first treated solution in which the water-soluble organic solvent concentration is reduced to 0.

Abstract: A method of membrane separation and membrane separation apparatus, with which not only a supply liquid can be evaluated but also the problems, such as scale, occurring on reverse osmosis membrane can be monitored in a highly straightforward fashion. There is provided a membrane separation apparatus equipped with reverse osmosis membrane module (3) so as to be adapted for feeding of a supply liquid and obtaining of a permeated liquid and a concentrated liquid, characterized by comprising a feeding-side membrane separation means (10) which includes a separation membrane (11) of which the membrane face (11a) can be monitored and guides the supply liquid so as to separate the membrane, and a concentrating-side membrane separation means (20) which includes a separation membrane (21) of which the membrane face (21a) can be monitored and guides the concentrated liquid so as to separate the membrane separation thereof.

Abstract: A method is provided of recycling and cleaning up oil-based waste drilling mud and cuttings contaminated with oil-based waste drilling mud. A facility for performing the method is also provided. The method includes removing the coarse solids from the mud, breaking the emulsion, separating the hydrophobic phase from the water phase and the solid phase, vaporizing all residual oil and water from the solids, and burning off the vaporized oil. The method produces a solid “soil” product that is free from oil contamination, an oil product that is fit for reuse, and clean air emissions. A thermal desorber can be used to efficiently vaporize the oil at low temperature. Optionally the water fraction of the mud can be vaporized, solutes and salts can be captured as evaporite and then be mixed with the soil product. The method has the unique advantage of producing no persistent hazardous waste.

Abstract: A system and method for the treatment of process streams. A catalyst mediates a wet oxidation process at elevated temperatures and pressures for treating at least one undesirable constituent in an aqueous mixture. The aqueous mixture may be contacted with a catalyst and an oxidizing agent at an elevated temperature and a superatmospheric pressure.

Abstract: The present invention relates to a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution, and provides a process and an apparatus for separating and recovering the waste alkali from a cyclohexane oxidation solution. According to the invention, a gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process.

Abstract: Cooling water (circulating back water) which is raised its temperature by a refrigerator 12 is sprayed from a spraying device 2 of a cooling tower, and is collected in a pit 4. The cooling water in the pit 4 is circulated via a circulation pump (10), a circulation forward pipe (11) and a circulation return pipe through the refrigerator 12. Make-up water is supplied from a make-up water line 9 at a rate corresponding to an evaporation loss, windage loss W and a blowdown water amount B from a blowdown valve 8 of a blowdown line 7 of the cooling tower 1. A load of the cooling tower is calculated based on a temperature difference between the circulating forward water and the circulating back water, and a feeding rate of a treating agent from a feeding device 14 is controlled based on the load.

Abstract: There is provided an underwater pulse plasma processing apparatus including: a power supply unit for generating pulse power; at least one discharge unit for discharging the pulse power generated in the power supply unit to a water surface including an air layer or to water including air bubbles; and a plasma processing unit for removing underwater microorganisms through plasma generated by the at least one discharge device.

Abstract: A wastewater disposal system passively accumulates and dumps wastewater, which may advantageously prevent ice from forming in a drain line. The system includes a dump having two compartments. The dump is pivotally mounted to oscillate between a first and a second position under the influence of the weight of wastewater accumulated in the compartments. In the first position, a first compartment is aligned with an inlet while a second compartment is tilted to discharge or dump accumulated wastewater. In the second position, the second compartment is aligned with the inlet and the first compartment tilted to discharge or dump accumulated wastewater. Such may be useful at hydrocarbon well heads, particularly in cold environments.

Abstract: The present invention is an ultrasonic device with the transmitting head located outside a housing enclosure while radial mode PZTs and tail mass are located inside the housing enclosure. The ultrasonic device and related process are useful for any process involving supplying ultrasonic energy to a liquid, including controlling algae and decontaminating liquids with multiple ultrasonic transmitters driven at variable frequencies. A broad range of algae can be successfully controlled and various liquids can be decontaminated or otherwise processed in a rapid and effective way. Each transmitter is housed in an enclosure that can float on the surface of tanks; pools, reservoirs, lakes, ponds, and water and waste-water facilities. Alternatively, the transmitters can be attached to a structure and positioned with the transmitting head immersed into the liquid. The exposed transmitting head efficiently transmits ultrasonic energy to the liquid.

Abstract: Disclosed is a power-saving type safe drinking water discharge device to treat cold water from a cooling reservoir (110), in which water is temporarily stored and cooled, prior to discharging the water to the outside through a tap valve (120). A connecting tube (10), provided around an outer circumference thereof with a coolant tube (40), is provided between the cooling reservoir and the tap valve, such that the water, which is primarily cooled to a predetermined temperature in the cooling reservoir, is secondarily cooled while passing through the connecting tube, prior to being discharged through the tap valve. The discharge device is used to sterilize and cool water in a public or domestic drinking water appliance, thereby minimizing contamination of water and allowing a user to always drink cold water.

Abstract: Organic nitro compounds, especially nitro aromatic compounds and nitramines, in water are degraded through contact with bimetallic particles comprising cores of zero-valent iron having discontinuous coatings of metallic copper on the surfaces thereof. Higher rates of degradation are achieved when the water has a pH in the range of about 3.5 to about 4.5, especially when acetic acid is present in the water.

Abstract: A process for affecting reductive conversion reactions in a reactor using the palladized bacterial cellulose immobilized on a support for reductive conversion reactions in a reactor.

Abstract: A fluid filtering system includes a housing portion and a lid portion, with a safety pin mechanism extending through the lid portion which prevents the fluid filtering system from operating correctly through visual indicators. A vent bore is included in the housing which includes a vent gasket therein for proper seating of the lid portion against the housing portion to prevent leakage of fluid being filtered. An inner circumferential gasket is also included to secure the lid portion to the housing portion and to prevent fluid leakage. A camming interface between the lid portion and the housing portion assures a secure fit of both the lid portion and the housing portion; the safety pin mechanism disallows the lid portion from being removed from the housing portion, thereby preventing accidental, and unsafe, release of the lid portion from the housing portion.

Abstract: A support for supporting and positioning a filter bowl of a filter system may include a bracket body, a rod, an extension arm threadably connected to the rod and a support band connected to and rotatable with respect to the extension arm. The bracket body may include a top plate. The top plate may include an opening for receiving the rod. The rod may be rotatably positioned in the opening in the top plate and extend from the top plate in a direction away from the top plate of the bracket body. The extension arm may be operable to extend from the bracket body or retract towards the top plate of the bracket body when the rod is rotated. The support band may be configured for attachment to the filter bowl of the filter system.

Abstract: A process for the filtration of an ionic liquid involves feeding an ionic liquid containing precipitated metal halides to a first filtering zone, which includes at least one first filter, to provide a partially filtered product. The process further includes subsequently feeding the partially filtered product to a second filtering zone, which includes at least one second filter having a smaller pore size than the at least one first filter, to provide a filtered product. A filter system capable of filtering precipitated metal halides from ionic liquid is also disclosed.

Abstract: DISPOSITION INTRODUCED IN RACK FOR SERVER AND SIMILAR WITH CLOSURE IN MIXED SHEET consists essentially in a rack (1) for server with a closure made of sheet (2) with thermoplastic material, which are anchored in shapes (3) which reassemble the chassis (4) of the rack (1), and it may take the most varied configurations and constructive dispositions.

Abstract: A cable tray constructed of U-shaped transverse members made from geometrically shaped raw material that reduces the contact point load between the plurality of the U-shaped members and an electrical conductor that is placed within the cable tray.

Abstract: A cable tray constructed of longitudinal and transverse members having a shape in which the vertical dimension of the shape is greater than the horizontal dimension of the shape wherein the longitudinal or transverse members are positioned such that the vertical dimension of the shape is substantially perpendicular to the load being placed on the cable tray.

Abstract: A shelving unit includes a support frame and a plurality of support boards each detachably mounted on the support frame. The support frame includes a front support bracket, a first connecting bracket having a first end connected with a first end of the front support bracket, a second connecting bracket having a first end connected with a second end of the front support bracket, and a back board having a first end connected with a second end of the first connecting bracket and a second end connected with a second end of the second connecting bracket. Thus, the shelving unit can be assembled and disassembled without using tools, thereby facilitating a user assembling the shelving unit. In addition, the shelving unit can be folded into a smaller volume and reduces the cost of packaging, transportation and storage of the shelving unit.

Abstract: A shelving unit includes a support frame and a backplane combined with the support frame. The backplane includes an upright support, a transverse connecting rack detachably combined with the upright support, a first connecting bracket secured on the upright support, a second connecting bracket secured on the connecting rack and detachably combined with the first connecting bracket, and a fastening pin extending through the first connecting bracket and the second connecting bracket to combine the first connecting bracket and the second connecting bracket together. Thus, the first connecting bracket and the second connecting bracket are combined together and detached from each other by the fastening pin, so that the upright support and the connecting rack are assembled or disassembled easily and quickly, thereby facilitating a user assembling or disassembling the backplane of the shelving unit without using tools and saving a considerable amount of time for a user.

Abstract: A device designed to be mounted in a complete container, the device comprising a container neck (3), in which a valve membrane (2) is mounted and fixed, the membrane having an opening (8) in its centre, which interacts with a central pin (9), which is a part of the neck (3), and the membrane and its opening sealing the container, since the membrane with a certain surface pressure till be pressed against the central pin (9), and that the membrane, directly subsequent to an emptying or a partial emptying continuously closes the container anew, this being done without any air flowing backwards and into the partially emptied container.

Abstract: A plastic container for a child-resistant package, including a sidewall with an outer surface, a deflectable release cantilevered from the outer surface and deflectable toward the outer surface, and deflection limiting elements carried by the deflectable release to limit deflection of the release. The deflection limiting elements include laterally spaced lugs transversely extending toward the sidewall outer surface from the deflectable release and having portions normally spaced from the sidewall outer surface, such that deflection of the release brings the portions of the lugs into abutment with the sidewall outer surface.

Abstract: A hazardous materials containment bottle provides greater sealing against the environment by the combination of a funnel-like cone-shaped insert with a lid which includes a downward projecting stopper that mates with an aperture in the center of the insert. A second sealing point is provided by a circular rim at the top of the insert which is compressed between a ledge along the top of the bottle sidewall and the underside of the lid. A third sealing point is provided by a gasket between the outer circumference of the lid and a flange around the mouth of the bottle.

Abstract: A portable, re-usable mixing device adapted to be removably attachable and re-attachable to a material entry site of a container of a liquid to be blended with another material. The mixing device has a housing encompassing a mixing chamber having, relative to the vertical plane, an upper end and a lower end. The upper end has a re-openable and re-closeable cover such as a screw cap, or any other closure device for the mixing chamber, although under some circumstances, the upper end itself maybe closed and not be re-openable and re-closeable. The lower end is adaptable for removable attachment to the container containing the liquid or other material to be blended whereby said mixing chamber is in substantially liquid sealable communication with the inner volume of said container.

Abstract: A method of fabricating a circuit includes bonding an electrically conductive layer to a donor film, removing selected portions of the electrically conductive layer from the donor film to provide a circuit arrangement, and transferring the circuit arrangement from the donor film to a substrate.

Abstract: An ink composition used in a roll printing process and A method of forming a pattern on a substrate using the same are disclosed. The ink composition used in a roll printing process includes polymer or oligomer, a rosin ester based tackifier, and solvent. The method of forming a pattern on a substrate includes forming an organic film by coating an ink composition on the outer circumferential surface of a roller, forming a preliminary pattern on the outer circumferential surface of the roller, and allowing the preliminary pattern to adhere to the substrate.

Abstract: A cooling microcircuit for use in a turbine engine component is provided. The cooling microcircuit has at least one leg through which a cooling fluid flows. A plurality of cast vortex generators are positioned within the at least one leg to improve the cooling effectiveness of the cooling microcircuit.

Abstract: A highly aqueous, strongly basic planarizing solution and a process for its use to reducing or essentially eliminating protrusions or projections extending generally upwardly from a generally planar surface of polysilicon film produced by Low Temperature Poly Si (LTPS) annealing a film of amorphous silicon deposited on a substrate; the process including contacting the surface of the generally planar polysilicon film with the highly aqueous, strongly basic solution for a time sufficient to selectively etch the protrusions or projections from the surface of the generally planar polysilicon film without any significant etching of the generally planar polysilicon film, said highly aqueous, strongly basic solution being a solution having a pH of 12 or higher and comprising water, at least one strong base, and at least one etch rate control agent.

Abstract: Provided is a spin head. Chuck pins, installed at a support plate to support the lateral surface of a substrate, are moved along the perpendicular direction to the radial direction of the support plate. The effect of centrifugal force applied to the chuck pins during the rotation of the support plate is minimized to support a substrate stably.

Abstract: In a system and method of etching a sample disposed in an etching chamber, a plurality of separately stored charges of an etching gas is discharged, one at a time, into a sample etching chamber. The discharge of each charge of etching gas occurs such that a momentary overlap exists in the end discharge of one charge of etching gas with the beginning discharge of another charge of etching gas, whereupon the desired flow of etching gas into the etching chamber is maintained. During discharge of one charge of etching gas, a previously discharged charge of etching gas is recharged. The process of discharging a plurality of separately stored charges of an etching gas, one at a time, and recharging at least one previously discharged charges of etching gas during the discharge of at least one charge of etching gas continues until the sample is etched to a desired extent.

Abstract: A plasma source for processing or imaging a substrate, for ion source for proton therapy, for ion thrusters, or for high energy particle accelerators includes a coolant circuit passing adjacent to a plasma ion reactor chamber and RF antenna coils. In a method for operating the plasma ion source having an induction coil adjacent to a reaction chamber for inductively coupling power into the plasma from a radio frequency power source, the method comprises pumping a dielectric fluid into contact with induction coils of the plasma ion source along the coolant circuit. Use of the dielectric fluid both electrically insulates the plasma chamber, so that it can be biased to 30 kV and up, and efficiently transfers heat away from the plasma chamber.

Abstract: A method for producing a molded body, said method comprising: providing a film comprising a thermoplastic plastic and having a film thickness D ranging from 1 ?m to 1000 ?m; irradiating the film with ionizing radiation, to produce irradiated regions in the film; thermally reshaping the film into a molded body and generating at least one hollow structure, wherein a temperature of the thermal reshaping remains below the melting temperature for the thermoplastic plastic; removing the irradiated regions, to create pores having a diameter ? from about 10 nm to about 10 ?m in the molded body; and removing the molded body from a mold.

Abstract: A switchgear device for breaking a bidirectional direct current in an electric line comprising at least two connection terminals, and an even number of pairs of separable contacts, of arc chutes associated with distinct pairs of separable contacts, and of tripping mechanisms associated with distinct pairs of separable contacts and connected to one another by a mechanical link, each arc chute being provided with an arc extinguishing chamber and with permanent magnets presenting a polarity enabling an electric arc to be removed to said arc extinguishing chamber when the current is flowing in the electric line in a predefined direction, said predefined direction being different for one half of the arc chutes.

Abstract: The time period is shortened till a cutoff spring force is released when a switchgear is cut off. This switchgear comprises: a closing shaft; a main lever fixed turnably on the closing shaft and associated with a movable contact; a closing spring; a sub shaft; a sub lever and a latch lever fixed on the sub shaft; a roller mounted on the leading end of the latch lever; a turnable latch and a kick lever; a lock lever made turnable with respect to the latch; a latch returning spring for biasing the latch; a lock returning spring for biasing the kick lever and the lock lever; and a stopper for restricting the turns of the lock lever and the latch.

Abstract: There is disclosed a welding frame for welding a first pipe having a first free end to a second pipe having a second free end; the frame comprising a first clamp for reconforming the first pipe adjacent its first free end and a second clamp for reconforming the second pipe adjacent its second free end; and a mounting frame mounting the first and second clamps in substantially coaxial relation. The first clamp and second clamp are actuable to hold the first free end of the first pipe in close coaxial opposition with the second free end of the second pipe for welding. There are also disclosed clamps for a frame for welding pipes, dies for use with the clamps, and methods for welding pipes.

Abstract: An adjustable vacuum and support system for evacuating particulate matter, smoke, excess gasses, and molten metal from a work area during TIG welding and for providing adjustable support to a welding head. The vacuum system has a vacuum head and a vacuum nozzle. An adjustable mounting bracket arrangement has a first portion fixed to the vacuum head and a second portion securable to the welding head. The bracket arrangement establishes pivotal and slidable couplings between the welding head and the vacuum head. The vacuum nozzle has a support surface for being rested on a surface of a workpiece to support the vacuum head and the welding head. The support surface of the vacuum nozzle can be a base bevel surface at the tip of the nozzle. An opposed suction bevel surface can have a nozzle aperture interposed therealong.

Abstract: A welding apparatus includes a first electrode tip; a second electrode tip opposing the first electrode tip; and an electrically conductive part which is provided so as to be freely interposed between the second electrode tip and a work and ensures electrical conduction between the second electrode tip and the work when the electrically conductive part is interposed between the second electrode tip and the work, the electrically conductive part including an electrically conductive member one side of which opposes the work with a presence of a void space from the work when the electrically conductive member is interposed between the second electrode tip and the work, and against which the second electrode tip is abutted on another side thereof, and a pair of electrically conductive abutment members which are provided integrally with the electrically conductive member in such a manner as to extend toward the work, and distal ends of which are abutted against the work, a position of abutment of the electrically

Abstract: A process for producing through-holes in a sheet member to form a perforated article, such as an arcuate (non-planar) acoustic skin suitable for use in an acoustic panel of an aircraft engine nacelle. The process includes deforming a sheet member to have an arcuate shape with an arcuate surface, mounting and rotating the arcuate-shaped sheet member on a mandrel and then, while rotating the sheet member, directing an electron beam at the arcuate surface of the sheet member and deflecting the electron beam toward multiple locations on the arcuate surface to produce the through-holes through the sheet member in a defined hole pattern and thereby yield a perforated arcuate-shaped sheet member with holes having axes substantially normal to the arcuate surface. The holes are not subjected to elongation in a nonuniform manner after they are produced, and have the same transverse cross-sectional shape.

Abstract: The present invention provides a method of removing a coated resin layer of a resin-coated metal tube whereby a resin layer can be stripped rapidly without the risk of damaging a plating layer. In a method of removing a coating resin layer of a resin-coated metal tube according to the present invention, a coating resin layer is removed by a rotating body of a rotating body stripping apparatus, whereupon the coating resin layer is removed by a laser beam of a laser apparatus.

Abstract: A method of forming a plurality of shaped holes on a workpiece. The method may include rotating the workpiece about multiple axes relative to a laser beam, and positioning the laser at a first predetermined angle relative to the workpiece. The laser beam is pulsed to form a first plurality of trepan cuts defining a row of metering holes. The laser beam, after adjusting to a next predetermined angle and adjacent a previous row of trepan cuts, is pulsed to create a plurality of rows of trepan cuts wherein each cut in the previous row of trepan cuts is connected to a cut in said subsequent row of trepan cuts. The plurality of rows of trepan cuts are formed in a side-to-side sweeping formation and define a portion of each of the shaped holes. Next, the laser is pulsed in alignment with the metering hole to remove debris from therein.