Abstract: A build material recovery system for a three-dimensional (3D) printer can include a selective solidification device to create a 3D object using build material, a build processing device to separate the 3D object from unfused build material, a material separating and conditioning device to condition the unfused build material, and a material storage device to store the conditioned build material.

Abstract: According to one example there is provided a method for three-dimensional printing. The method comprises forming a pile of build material on a heatable plate adjacent a spreader, heating the pile of build material by contact with the heatable plate, and spreading the heated pile of build material on a support platform.

Abstract: In example implementations, an apparatus includes a storage unit, an auger screw, a housing enclosing the auger screw and at least one heater coupled to the housing. The augers screw receives a build material from the storage unit and delivers the build material to a build platform via movement of the auger screw. The build material is heated by the at least one heater as the build material is being moved by the auger screw.

Abstract: A device for treating 3D powder printing elements includes a first chamber with a first partial chamber and a second partial chamber separated by at least one screen grid. Grid meshes allow compressed powder residues to pass through. A rotation means rotates the first chamber about an axis of rotation, in particular with a rotary passage. The screen grid is inclined, in particular perpendicular, to the axis of rotation of the first chamber. A filling region allows filling the 3D powder printing elements into the first partial chamber. Gas medium is supplied in the first chamber, in particular in the first partial chamber. Gas medium suction means extract plastic powder residues from the first chamber, in particular from the second partial chamber. The gas medium suction means are mounted in or parallel to the axis of rotation and/or centered by the rotary means, in particular within the rotary passage.

Abstract: A three-dimensional printing system is for manufacturing and post-processing a three-dimensional article. The system includes a housing, a blower, and a residue trap. The housing is for surrounding the three-dimensional article during the post process and includes an air inlet and an air outlet. The blower includes an inlet and an outlet. The outlet supplies pressurized air to the air emitting nozzle. The residue trap is coupled between the housing air outlet and the inlet of the blower. The air circulates around a loop from the blower outlet, to the air inlet of the housing, out of the air outlet of the housing, and to the inlet of the blower.

Abstract: In an example implementation, a method of extracting three-dimensional (3D) objects includes forming on a vibratory extraction platform, a build cake comprising a fused 3D object encased within build material and vibrating the extraction platform to break apart the build material and sift it through openings in the extraction platform.

Abstract: A laser 3D printer presents a tubular compartment; a lifting platform engaged in a sliding manner in the tubular compartment; a feeding unit for feeding a powdered material onto the lifting platform; a laser printing head for sintering the powdered material laid on the lifting platform; and a collection chamber, which extends about at least part of the tubular compartment and is connected to the tubular compartment via at least one opening made through a side wall of the tubular compartment itself.

Abstract: According to some embodiments, a method includes depositing alternating layers of a ceramic powder and a pre-ceramic polymer dissolved in a solvent. Each layer of the pre-ceramic polymer is deposited in a shape corresponding to a cross section of an object. The alternating layers of the ceramic powder and the pre-ceramic polymer are deposited until the layers of the pre-ceramic polymer form the shape of the object. The method includes heating the deposited ceramic powder and pre-ceramic polymer to at least a decomposition temperature of the pre-ceramic polymer. The decomposition temperature of the pre-ceramic polymer is less than a sintering temperature of the ceramic powder. The method further includes removing excess ceramic powder that the pre-ceramic polymer was not deposited onto.

Abstract: A device for manufacturing an absorbent body by depositing on a deposit portion liquid absorbent fiber contained in a first gas flowing through a duct. The device for manufacturing an absorbent body includes the deposit portion that travels along a predetermined travel path, the duct that distributes the liquid absorbent fiber from a distribution opening placed opposing the travel path, a particulate matter discharge tube, a tip end thereof being introduced into the duct, that discharges a second gas having particulate matter mixed therein from a discharge hole of the tip end, and an operable throttle portion that throttles a flow path of the particulate matter discharge tube to change discharge distribution of the particulate matter. The operable throttle portion is operated in conjunction with the travel of the deposit portion.

Abstract: Disclosed herein is a method for recycling synthetic turf that includes agglomerating a plurality of synthetic turf fragments and extruding the agglomerated material. The method produces a recycled material suitable for use as infill in a synthetic turf. Accordingly, an infill for synthetic turf and a synthetic turf including that infill are also disclosed herein.

Abstract: An absorbent manufacturing device forms an absorbent by depositing a liquid absorbent fiber and a super absorbent polymer in a deposition part. The absorbent manufacturing device includes: a plurality of suction holes that are provided in the deposition part, wherein the liquid absorbent fiber and the super absorbent polymer flowing inside a scattering duct are deposited in the deposition part by suction; a suction duct that is provided in communication with the suction holes and draws air so that the suction holes perform suction; and a separator that separates a super absorbent polymer of size equal to or larger than a certain size from a flow of air flowing in the suction duct and returns the separated super absorbent polymer to the scattering duct.

Abstract: An environmentally beneficial process for utilizing waste drill cuttings from oil and gas exploration. The waste drill cuttings (20) are used as a filler and combined with plastic to provide a plastic based product (26) in the plastics industry. In an embodiment the cuttings are thermally treated and formed into pellets. In a further embodiment the cuttings are treated and mixed with recycled plastic to be formed into pellets. The pellets are then used in the manufacture of rigid plastic products such as bollards, planters, benches and decking.

Abstract: The present invention relates to a device for manufacture of three-dimensional models by means of a 3D printing process, whereby a spreader device is used to deposit particulate material in layers on a build platform and the particulate material flow, which occurs perpendicular to the spreading direction, is transferred into containers that are actively cleaned by sliders or brushes at the spreader device. It exploits the fact that particulate material that is moves dynamically can only bridge small height differences. The arrangement can be implemented in a space-saving manner beneath the spreading plane.

Abstract: A method for producing non-expandable pellets can include introducing a vinyl aromatic polymer to a pelletizer (L). The pelletizer (L) can have a die plate having a holes of large diameter. During the start-up of the production of the non-expandable pellets, pellets can be produced in the pelletizer (L). When the polymer flow rate is in the operating range of the pelletizer (S), the introduction of the vinyl aromatic polymer can be switched from the pelletizer (L) to the pelletizer (S). The pelletizer (S) can be operated at conditions effective to produce the non-expandable pellets. The pelletizer (S) can have a die plate having holes of small diameter. The non-expandable pellets can be recovered from the pelletizer (S), and the pellets can be recovered from the pelletizer (L).

Abstract: To improve the work environment by preventing a larger amount of a powder compounding agent from being discarded as power dust and by returning the powder compounding agent into a kneading tank by capturing said powder compounding agent by employing a simple means in closed pressure type kneader. Also to bring the compound quality closer to the design quality by drastically increasing the valuable collection rate. A recovery device for collecting an ejected powder compounding agent is installed on a closed pressure type kneader for kneading a kneading material along with a powder compounding agent in a kneading tank by rotating a kneading rotor. In the recovery device, a tubular air bag capable of expanding and contracting is connected to the side surface of the surrounding wall of the kneading tank with a ventilation chute between the air bag and the surrounding wall, the surrounding wall surrounding the periphery of a pressurized lid rising/lowering path.

Abstract: A method for producing expandable pellets can include introducing a vinyl aromatic polymer and an expandable agent to a pelletizer (L). The pelletizer (L) can have a die plate having a holes of large diameter. During the start-up of the production of the expandable pellets, pellets can be produced in the pelletizer (L). When the polymer flow rate is in the operating range of the pelletizer (S), the introduction of the vinyl aromatic polymer and the expandable agent can be switched from the pelletizer (L) to the pelletizer (S). The pelletizer (S) can be operated at conditions effective to produce the expandable pellets. The pelletizer (S) can have a die plate having holes of small diameter. The expandable pellets can be recovered from the pelletizer (S), and the pellets can be recovered from the pelletizer (L).

Abstract: An absorbent manufacturing device forms an absorbent by depositing a liquid absorbent fiber and a super absorbent polymer in a deposition part. The absorbent manufacturing device includes: a plurality of suction holes that are provided in the deposition part, wherein the liquid absorbent fiber and the super absorbent polymer flowing inside a scattering duct are deposited in the deposition part by suction; a suction duct that is provided in communication with the suction holes and draws air so that the suction holes perform suction; and a separator that separates a super absorbent polymer of size equal to or larger than a certain size from a flow of air flowing in the suction duct and returns the separated super absorbent polymer to the scattering duct.

Abstract: An environmentally beneficial process for utilising waste drill cuttings from oil and gas exploration. The waste drill cuttings (20) are used as a filler and combined with plastic to provide a plastic based product (26) in the plastics industry. In an embodiment the cuttings are thermally treated and formed into pellets. In a further embodiment the cuttings are treated and mixed with recycled plastic to be formed into pellets. The pellets are then used in the manufacture of rigid plastic products such as bollards, planters, benches and decking.

Abstract: The present invention relates to a process for producing reclaimed casting sand, which has step (I) of grinding recovered sand in the presence of an additive (A) containing a liquid having a surface tension of not higher than 35 mN/m at 25° C. and a boiling point of not lower than 150° C. at 1 atmospheric pressure.

Abstract: A three-dimensional object forming apparatus is provided, which at least comprises: a construction stage, a printing module, plural temporary storage tanks, plural powder supplying tanks, a construction tank, a printing quality inspection component for forming a pattern to determine whether the printing module is blocked or not, a maintenance device, and a dust-proof device.

Abstract: Disclosed is a method for making a refractory material from aluminum residues of aluminum recycling. At first, the aluminum residues is mixed with adhesive solution so that the percentage by weight of the adhesive solution is 5 wt % to 10 wt %. The mixture is granulated into grains. The grains are filled in a mold, pressed and then removed from the mold so that the grains are turned into a green body. The green body is heated in a furnace at a range of temperature from 1100° C. to 1400° C. so that the grains are sintered and become a refractory material.

Abstract: A three-dimensional object-forming apparatus is disclosed, which includes an in-batches powder-rationing tank system, a construction tank system, a printing powder-applying system, a rapid drying heating system, a printing maintenance device, a dust-proof device, a successive liquid-supplying device, a powder auto-filtrating and recycling device, and a print quality detection device.

Abstract: A method for producing a sintered ferrite magnet having an M-type ferrite structure and represented by: Ca1?x?yRxBayFe2n-zCoz, (by atomic ratio), where 0.3?1?x?y?0.65, 0.2?x?0.65, 0.001?y?0.2, 0.03?z?0.65, 4?n?7, and 1?x?y>y. The method includes mixing a Ca compound, an R element compound, a Ba compound, an iron compound and a Co compound as starting materials; calcining the starting materials to obtain calcined bodies; pulverizing the calcined bodies to obtain a calcined powder; providing recycled materials having an M-type ferrite structure and being represented by the above formula; pulverizing the recycled materials to obtain a recycled material powder; mixing the recycled material powder with the calcined powder to form a moldable material; molding the moldable material to obtain green bodies; and sintering the green bodies to obtain the sintered ferrite magnet.

Abstract: The present invention concerns an air-laid non-woven fibre product comprising recycled material and manufactured by a dry forming process, said product comprising: a first portion of up to 99% dust material, where the dust material is preferably recovered dust from manufacturing or the like of fibrous textile material, preferably cotton textiles, and a second portion at least 1% bi-component fibres having a length between 2-75 mm, preferably 2-25 mm in length.

Abstract: A three-dimensional object forming apparatus for forming a three-dimensional object includes: a base platform; a transmission portion; a detachable construction tank; a movable powder supplying tank provided for driving to supply construction powder above the detachable construction tank; a print module including at least a print cartridge with at least a nozzle; a heating portion; an lifting portion arranged below the detachable construction tank; a nozzle cleaning module; a nozzle sealing module having a holder, at least a sealing portion and a moisture portion; and a stretchable dust-proof cover connected to a side of the powder supplying tank, which is provided for moving together with the powder supplying tank to cover the construction powder in the construction tank.

Abstract: A rotating machine comprising a sintered ferrite magnet having an M-type ferrite structure, comprising Ca, an R element that is at least one of rare earth elements and indispensably includes La, Ba, Fe and Co as indispensable elements, and having a composition represented by the formula: Ca1?x?yRxBayFe2n?zCoz, wherein (1?x?y), x, y, z and n represent the contents of Ca, the R element, Ba and Co, and a molar ratio, meeting 0.3?1?x?y?0.65, 0.2?x?0.65, 0.001?y?0.2, 0.03?z?0.65, 4?n?7, and 1?x?y>y; a bonded magnet comprising ferrite powder having the above composition and a binder, and a magnet roll, at least one magnetic pole portion of which is made of the above bonded magnet.

Abstract: A process for making a solid component out of recycled powder coat is provided. The process can include providing a powder coat material and providing a second material. Thereafter, the powder coat and the second material are mixed to produce a powder coat-second material mixture. The powder coal-second material mixture is processed in order to produce a polymer containing precursor. The processing can include granulating or densifying the powder coat-second material mixture. After the precursor has been produced, it can be placed within a molding machine and a solid component is molded. The molding machine can be an injection molding machine, an extrusion molding machine or a blow molding machine.

Abstract: An apparatus for processing fly ash comprising a heated refractory-lined vessel having a series of spaced angled rows of swirl-inducing nozzles which cause cyclonic and/or turbulent air flow of the fly ash when introduced in the vessel, thus increasing the residence time of airborne particles. Also disclosed is a method of fly ash beneficiation using the apparatus.

Abstract: The present invention is a new composition of matter and can be used as components of a capacitor. The dielectric properties possess in this material has improved tremendously as compared to the existing component. The finding of high dielectric permittivity in the present invention ceramic according to its formulation and processing technique that can operate or use at wide range frequencies and temperatures are very useful in electronic and electrical devices. The present invention is best for applications at the range of temperatures. The permittivity is recorded at 1 kHz are between ˜20,000 to ˜54,000 and almost constant over three decade of frequency. Thus, the dielectric permittivity obtained can be used as energy storage, sensor, electric filter, etc., besides minimizing the devices size.

Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enables the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.

Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enables the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.

Abstract: A dust-reduced nicotine-containing granulate comprising a homogenous mixture of nicotine or a pharmaceutically acceptable nicotine derivative and an excipient, the granulate having a particle size of at least 150 ?m. Method for the preparation of a dust-reduced nicotine-containing granulate, and use of the nicotine-containing granulate for the preparation of pharmaceutical products.

Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze, and comprising immiscible blends of at least one polyester comprising 2,2,4,4-tetramethyl-1,3-cyclobutanediol, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.

Abstract: Disclosed is a process for the preparation of shaped articles such as, for example, sheeting, films, tubes, bottles, preforms and profiles, having high transparency and low haze comprising immiscible blends of one or more thermoplastic polymers selected from polyesters, polycarbonates, and polyarylates, and a copolyamide or a transamidized, homogeneous blend of a least two polyamides. The components of the immiscible blend which have refractive indices which differ by about 0.006 to about ?0.0006. The small difference in the refractive indices enable the incorporation of regrind into the polymer composition to produce transparent shaped articles. These articles may have one or more layers and can exhibit improved excellent barrier properties and good melt processability while retaining excellent mechanical properties. Metal catalysts can be incorporated into the compositions to produce shaped articles having oxygen-scavenging properties.

Abstract: Methods and systems for processing waste materials and for manufacturing composite materials are disclosed herein. According to some embodiments, the heterogeneous waste includes a plastic component and a non-plastic component, and the non-plastic component includes a plurality of pieces of waste. The heterogeneous waste is heated to melt at least a portion of said plastic component and reducing a volume of said heterogeneous waste, and then mixed (e.g. by rotating a mixing chamber or by stirring) until at least some said pieces are each encapsulated by the melted plastic component. Upon cooling, the mixture optionally sets into a composite material. The presently disclosed invention does not require pre-sorting of the heterogeneous waste and is operative to process “as is” waste. Optionally, the waste is pre-sorted.

Abstract: A composite material comprises a particulate material generated as a waste by-product of an industrial process, and a binder for binding the particulate material into a uniform mass. The particulate material and binder are combined in preselected proportions and compressed to form a counterweight having a preselected density and a fixed configuration. A counterweight is manufactured by selecting a first proportion of a particulate material generated as a waste by-product of an industrial process, selecting a second proportion of a binder for binding the particulate material into a uniform mass, combining the first proportion of the particulate material with the second proportion of the binder into a uniform mass, forming the counterweight from the uniform mass, and incorporating the counterweight into a finished product.

Abstract: A method for manufacturing an environment-friendly composite material, using polyolefin particles and powder rubber that are made from reclaimed plastic and reclaimed rubber as a raw material, comprises the steps of: powder rubber surface treatment: using interface treatment coupling agent to perform a powder rubber surface treatment to improve the compatibility between the polyolefin particles and the powder rubber; additive treatment: adding the selected additive according to the desired function; blending: melt-blending the polyolefin particles and the powder rubber evenly; extrusion granulating: granulating the evenly-blended polyolefin grain and powder rubber by means of extrusion using a processing machine so as to form the granulated raw material, which has a wide application range and is environment-friendly.

Abstract: A method of making a laminar material suitable for use in the manufacture of shoes. The material includes an extruded core having laminated thereto on both sides a fibre fabric layer, the thermoplastic sheet core is made from a mixture of granulated scrap shoe stiffener material with virgin extrudable thermoplastics material the core including at least 40% by weight of virgin extrudable thermoplastics material. Hot melt adhesive coatings are applied on both sides. The scrap material in the core includes fibrous particles.

Abstract: New methods and systems for manufacturing a three-dimensional form, comprising steps of providing a plurality of particulates; contacting the particulates with an activation agent; contacting particulates having the activation agent with a binder material that is activatable by the activation agent; at least partially hardening the binder for forming a layer of the three-dimensional form; and repeating these steps to form the remainder of the three-dimensional form. Following sequential application of all required layers and binder material to make the form, the unbound particles are appropriately removed (and optionally re-used), to result in the desired three-dimensional form. The invention also contemplates a novel method for preparing a form, where unbound particulates free of binder material are re-claimed.

Abstract: A method for reusing foamed material comprises the steps of: crumbling waste material into smaller pieces by blocks and by batches by using a crumbling machine; extruding the crumbling waste material block into a screw rod machine and forging the block so as to destroy the molecular structures of the waste material block; grinding the waste material block into waste material powders by a grinding machine so as to increasing total surface areas of the waste material; and activating the waste material powders by adding foaming material thereinto so that the waste material powders are reacted with the foaming material so as to form, as an active foaming material.

Abstract: A resin composition is provided and includes a copolymer having a structure represented by formula (I) and a structure represented by formula (II). In the formulae, X1 and X2 each independently represent a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted alkoxy group; X3 and X4 each independently represent a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted alkoxycarbonyl group; a and b each independently are an integer of from 1 to 4, and n is an integer of from 1 to 10, and R1 represents a linear or branched alkylene group; and m is an integer of 10 or more.

Abstract: A reclaimed ceramic starting material is produced from scrap generated in a method for producing a cordierite ceramic body. The scrap is an unnecessary part generated in a cutting step of cutting a dried ceramic molded article into a predetermined length or a defective dried ceramic molded article generated in a drying step of drying an extruded ceramic material. The scrap is crushed. From a powder obtaind by crushing, at least particles smaller than the predetermined size are removed to produce a reclaimed powder having a particle size within a predetermined size range. The reclaimed powder is used as a reclaimed ceramic starting material. Instead of crushing, the scrap may be fired at a temperature where a contained binder can burn away to obtain a reclaimed powder. The reclaimed ceramic starting material ensures no deterioration in the quality of a cordierite ceramic body produced therefrom.

Abstract: A process is provided for coating/decorating molded resin products having excellent waterproofing properties, which is able to simply and effectively reuse waste FRP. The surface of the molded resin product obtained by mixing, melting, and making mixture 8 containing wood-derived cellulose fine powder 3, resin-derived resin powder 7, and waste FRP 4-derived FRP powder 5 into a given form is coated/decorated. In the process for coating/decorating molded resin products, the surface of the molded resin product is subjected to UV coating/decorating, and after roughening, the surface is subjected to the UV coating/decorating again.

Abstract: A moulding plant, notably intended for the production of electrodes, includes a hopper, at least a first mould and a second mould, two compression devices, each device including a working table and a pressing form. The plant is characterized in that there is fixed intermediate laying plane, interspaced between the compression devices, and vertical to the hopper, and there is a displacement device to position each either at a working table, or at the intermediate laying plane.

Abstract: A process for recycling of powder coating waste comprising the steps of (1) compressing powder coating waste to powder coating compacts having a volume of 0.5 mm3 to 15 cm3 by applying pressing forces; (2) placing the formed powder coating compacts into a vessel, rotating the vessel about a rotational axis inclined at an angle of 20 to 70 degrees relative to the horizontal and (3) heating the powder coating compacts while being moved in the rotating vessel until through-glassed powder coating bodies are formed.

Abstract: Dry flow, low compact, dust free, soluble granules of phosphoroamidothioates, preferably acephate, are produced by the process of 1) pre-mixing technical grade phosphoroamidothioate with specified adjuvants and other inert ingredients; 2) grinding to produce a ground product having a preferred particle size of 5 microns to 10 microns; 3) post-mixing; 4) granulating; 5) drying; 6) sizing to required length, preferably 1.5 to 3.0 mm; 7) and sieving to remove the fines to get the desired dust free soluble granule.

Abstract: The invention relates to a simplified production process with which it is possible to obtain carbon blocks, in particular anodes intended for aluminium production using the Hall-Héroult electrolysis process, which have high thermal shock resistance. This process comprises a grain size distribution adjustment operation of a carbon aggregate which includes: a) separating an initial ungraded carbon aggregate AC into a first fraction F1 made up of grains whose sizes are smaller than X, and into a second fraction F2 made up of grains whose sizes are X or greater, X lying between 0.2 and 2 mm; b) crushing B1 the first fraction F1 and part P1 of the second fraction F2 such as to obtain a powder F comprising a controlled proportion of ultra-fine grains; c) mixing the remaining part P2 of fraction F2 and said powder F in proportions with which it is possible to obtain crude carbon blocks whose so-called “Gr/S” ratio between the proportion PGr of grains larger than 0.

Abstract: The present invention provides a process for recycling fines produced during the production of powder coatings comprising the steps of heating the fines for a sufficient time and a sufficient temperature such that a reusable product is obtained, cooling such product, crushing the cooled product to produce particles of a desired particle size; and removing any particles which are not of desired particle size.

Abstract: A process for adjusting the level of water or water soluble additives in aqueous-based powder injection molding compounds for the purpose of recycling scrap material, controlling shrinkage or rehydrating dry feedstock. Depending on the objective, the process may require material granulation equipment, equipment for the addition or removal of water and mixing equipment. The molding compounds may be comprised of either recycled scrap material before being heat-treated or dry, virgin feedstock material.

Abstract: Waste water generated by processing a semiconductor is filtered to be cleaned. Removable matters trapped by a first filter film are used as a second filter film. Filtering capciity is maintained by applying an external force such as bubbles to the second filter film. When removable matters are mixed with the filtered water, the filtered water is recirculated again to the tank in which the waste water is stored, and after it is checked that a desired inclusion rate has been reached filtration is started again.