Abstract: Disclosed herein is a multibubble injection type DAF (Dissolved Air Flotation) water treatment apparatus which supplies fine bubbles injected through injection of saturated water to a lower area of a separation zone as well as a lower area of a contact zone of a flotation basin, thereby improving removal efficiency of flocs.

Abstract: Depressants comprising one or more types of polysaccharides comprising one or more types of pentosan units are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more collecting agents and one or more of the depressants.

Abstract: This descriptive report refers to an invention patent for the improvement in a metallic filtration body, belonging to the area of filtration equipment components for liquids, particularly the equipment named turbo filter (100), formed by: a filter body provided with intermediate filtration chamber (101), with extreme product inlet (102), lower filtrate outlet (103) and an opposite outlet for solids (104); by the metallic filtration body (1); by a rotor (105), provided with a set of fine step paddles (106), laid out at the turbo filter body inlet; and a set of coarse step paddles (107), laid inside and along the filtration body (1); by washing and counterwashing devices in the filtration body; by a motor device (108) for driving the rotor and others; said metallic filtration body (1) comprising basically two or more sections of the coaxial tubular metallic filtration body (1)?; by a connection device (20) among the sections of the tubular metallic (1)? filtration body; and by a regulation device (60) for the p

Abstract: What is presented is a material processing system for processing tailings discharged from an ore processing system. The tailings comprise coarse waste rock, the fine waste rock, coarse valuable product, and the fine valuable product. The material processing system comprises a classification element, a coarse flotation element, and a fines flotation element arranged to separate the coarse valuable product, the coarse waste rock, the fine valuable product, and the fine waste rock. The classification element separates the coarse waste rock and/or the coarse valuable product from the fine waste rock and/or the fine valuable product. The coarse flotation element separates the coarse waste rock from the coarse valuable product, the fine waste rock, and/or the fine valuable product. The fines flotation element separates the fine valuable product from the coarse waste rock, the fine waste rock, and/or the coarse valuable product.

Abstract: Disclosed herein is a method for removing contaminants from an industrial fluid waste. The method comprises the steps of ozofractionating the industrial fluid waste, whereby contaminants are oxidised and a foam fractionate is formed; and separating at least a portion of the foam fractionate and any precipitate from the ozofractionated fluid.

Abstract: An oil filter retention device comprises a cup and a lid. The cup has an enlarged upper outer rim having an interior threaded portion. The interior wall of the cup also has a plurality of grip enhancing nubs. The lid is fashioned as a curvilinear upper portion and a frustoconical lower portion. A threaded portion circumscribes an exterior side wall the lid at a position between the upper portion and lower portion. The bottom of the lid is open ended. The lid is configured to removably secure to the cup.

Abstract: A collapsible colander having a back wall, a front wall, a bottom wall and a pair of side walls. The back wall is positioned adjacent to a sink wall and is configured to attach to the sink wall. The front wall opposes the back wall and is moveable between a first position that is parallel to the back wall and a second position. The bottom wall has a number of apertures formed therethrough and has at least a first position that is substantially perpendicular to the back wall. The pair of side walls each have a first edge connected to the front wall and a second edge connected to the back wall. Additionally, the pair of side walls each have two or more hinges operable to move the front wall between at least the first position and the second position.

Abstract: A soil remediation facility includes a first screen apparatus including a vibratory screen, a drum mixer apparatus mixing the contaminated soil with a diluent, a saturated steam and hot water, a scrubbing apparatus including a mixing container and an impeller, a second screen apparatus including a vibratory screen. The facility further includes a floatation apparatus which adds a chemical agent for generating bubbles to the soil mixture, injects an air into the soil mixture to desorb contaminants from the soil mixture, and separates the desorbed contaminants by causing the desorbed contaminants to float. The facility further includes a hydro-cyclone apparatus which swirls substances contained in the soil mixture to sort the substances depending on a particle size and a desilter which swirls substances in the soil mixture at a higher angular velocity than an angular velocity in the hydro-cyclone apparatus to sort the substances.

Abstract: A microflotation system comprises a flotation tank with a dispersion water feed line in which an expansion valve arrangement is disposed. An adjusting apparatus is configured to adjust a flow rate of the expansion valve arrangement and an electronic control is connected to the adjusting apparatus. A measuring apparatus is disposed downstream from the expansion valve arrangement for detecting a size distribution of gas bubbles and the electronic control is configured to set the flow rate depending on a size distribution detected with the measuring apparatus.

Abstract: Separation of hydrophobic particles from a mixture of particles in a fluid is performed by providing a fluidized bed as a relatively non-turbulent contacting mechanism in a flotation cell incorporating a settling chamber located immediately above the fluidized bed. Hydrophobic particles attach to bubbles in the fluidized bed and rise to the interface with the settling chamber where non-hydrophobic particles flow over the lip of an internal launder and are removed as tailings at. The hydrophobic particles attached to bubbles float upwardly in the relatively placid settling chamber where unwanted gangue can fall back to interface. The bubbles form a froth layer at the upper surface of the settling chamber, and flow over the launder lip carrying the hydrophobic particles. An operation of the apparatus is kept stable by recirculating fluid from the settling chamber via pip and pump to mix with new feed entering at duct.

Abstract: A filter device may include a filter housing with a filter housing pot and a cover screwable onto the filter housing pot, and an annular filter element arranged in the filter housing and having an axially protruding pin for closing a run-off channel. The annular filter element may be connected to the cover via a first thread, which may have a dome protruding centrally and axially from an upper end disc of the annular filter element, with an outer thread interrupted by free passages, and hollow cylindrical spring elements, which may protrude axially from the cover and on which an inner thread portion designed to complement the outer thread may be arranged. Each inner thread portion may extend over a longer circumferential portion than one of the free passages. The first thread may be designed running counter to a second thread arranged between the filter housing pot and the cover.

Abstract: A drum structure, for a rotary drum filtering apparatus, comprising: a generally annular supporting drum, and a plurality of rib elements carried by the supporting drum longitudinally extending along the circumference of the drum generally in the longitudinal direction of the drum. A duplex stainless steel cover plate extends between two rib elements. A single supporting element supports the cover plate extending between each pair of two rib elements.

Abstract: A microbubble generating device that is capable of generating microbubbles from contaminated water is provided. The microbubble generating device 10 according to the present invention includes a liquid flow path 11 through which a pressurized liquid flows, a discharge path 12 through which generated microbubbles and a liquid are discharged, a throat part 13 that connects the liquid flow path 11 and the discharge path 12, and that has a flow path area smaller than the area of the liquid flow path 11 or the discharge path 12, and a gas supply path 14 for supplying a gas into the liquid flow path 11 or the throat part 13, wherein the gas supply path 14 has an exit end 143 that opens toward the downstream side of the liquid flow.

Abstract: The present invention relates an apparatus for cleaning water, in particular precleaning seawater, including at least one tank for receiving water containing at least one flocculating agent for separating organic and possibly biological constituents contained in the water. The at least one tank includes at least one contact zone K for contacting the water containing the flocculating agent with at least one gas, in particular air, and at least one separation zone S for separating the flocculated organic constituents buoyed up by the gas. At least one gassing unit is arranged in the at least one contact zone K and at least one filtration unit is arranged in the at least one separation zone S. The at least one gas is injected via the at least one gassing unit without using a liquid carrier.

Abstract: A filter pad for use in a dewatering container is presented. The filter pad is configured to fit within the interior cavity and substantially line the interior surfaces. Material, which is usually liquids and slurries, is added to the container with the filter in place and gravity is used to filter the sediment, while the water is released through a release nozzle. The solids are retained in the filter pad for later disposal. The filter pad has a portion that can be selectively opened and is configured for placement substantially adjacent the door to permit selective egress of contents of the interior cavity.

Abstract: A method for industrial refining of coal ash created in power plants and carbonaceous ashes produced in other combustion processes by separating coal from said ashes and returning it to use and by recovering a substantially coal-free ash fraction obtained in the refining. In the method, coal ash and at least one ash fraction created by gasification technique in combustion plants are carefully proportioned in relation to one another and formed into a slurry mixture by means of an efficient dispersion technique, the slurry being then led to a flotation step, where a fraction rich in coal and a siliceous fraction poor in coal and a fraction dissolving in the process water are separated by flotation.

Abstract: The descriptions relate to preventing assembly of a fluid filter apparatus unless a filter cartridge is installed, and preventing assembly of a fluid filter apparatus if the incorrect filter cartridge is installed. A mechanism includes cooperation of a movable member and a structure that can move the movable member to ensure that a fluid filter apparatus cannot be completely assembled, for example connecting its filter head to its shell, when there is no cartridge installed inside the shell or when there is an attempt to install an incorrect cartridge. This can protect from an inadvertent or intentional failure to install a cartridge (or correct cartridge) in the fluid filter apparatus.

Abstract: A dissolved gas flotation system including a flotation cell having an inlet and an outlet defining a direction of flow along a longitudinal axis extending from the inlet to the outlet. The flotation cell has a top and a bottom to define a cell depth extending from the top of the flotation cell to the bottom of the flotation cell in a direction of a transverse axis transvers to the longitudinal axis. A first means discharges a first dissolved gas and bubble mix in a first direction adjacent the inlet; and a second means discharge a second dissolved gas and bubble mix in a second direction adjacent the outlet counter-current to the first direction.

Abstract: A filter receptacle assembly is described including a filter receptacle having a receptacle wall and a circular edge defining an opening for receiving a filter cartridge and a first interlock device coupled to the receptacle wall of the filter receptacle, wherein the first interlock device comprises a first actuator moveable between a first position and a second position and biased into the first position, wherein at least a portion of the first actuator protrudes from the receptacle wall in the first position, wherein the first interlock device is configured so that when a filter cartridge is inserted into the filter receptacle, the first actuator is moved by the filter cartridge from the first position to the second position and is held in the second position by the filter cartridge.

Abstract: A synthetic bead for use in mineral separation is described. The synthetic bead has a surface made of a synthetic material such as polymer and the synthetic material is functionalized with molecules having a functional group for attaching mineral particles to the surface in a separation process. The synthetic beads can be placed in flotation cell containing a mixture of water, valuable material and unwanted material or in a pipeline where the mixture is transported from one location to another. The enriched synthetic beads carrying the mineral particles are separated from the unwanted materials in the mixture. The mineral particles are then released from the synthetic beads by means of low pH treatment, ultrasonic agitation, thermal or electromagnetic treatment.