An aquarium filter housing unit includes a top chamber composed of a fluid impeller housing and a fluid impeller, as well as a bottom chamber for a replaceable filter cartridge. The top chamber and the bottom chamber are formed as separate units and are held together via a friction fit along a bottom edge of the top chamber and a top edge of the bottom chamber. The bottom chamber includes a plurality of bottom chamber sidewalls and a base wall, wherein a door is provided for selectively accessing the filter cartridge held within in the bottom chamber.

A composite absorbent filter media having adsorption and/or absorption properties for the filtration of ester oils from a liquid includes a graphene and/or graphite composite mixed into a final emulsion, which is subsequently heat treated or cured, cooled, compressed, and dried. The resultant adsorption/absorption media is then disposed within a plug structure having an ingress and egress for liquids mixed with ester oils to pass through. Alternatively, the resultant adsorption/absorption media is disposed into a fabric and formed as a wall used to enclose oil-filled equipment. The media adsorbs/absorbs the ester oils from the liquid, while allowing the liquid to disperse and pass through.

A multilayer filter material for an interior air filter element of an air conditioning system of a vehicle may include an ion exchange layer including ion exchange particles and a plurality of further layers. The ion exchange layer may directly adjoin at least one of the plurality of further layers. The plurality of further layers may include an active layer including non-impregnated active carbon particles, and an impregnation layer including impregnated active carbon particles. The active layer may be arranged between the ion exchange layer and the impregnation layer. The ion exchange layer may be hygroscopic and may contain ions which form a toxic environment with water. The impregnation layer may include a component of active carbon particles impregnated with potassium iodide and a component of active carbon particles impregnated with potassium carbonate. The component impregnated with potassium iodide may be greater than the component impregnated with potassium carbonate.

A method of filtering water contained in a squeezable bottle includes filling the squeezable water bottle with water; screwing a portable filtration apparatus onto the squeezable water bottle, the portable filtration apparatus includes a cap piece, the cap piece having a mouthpiece and a threaded portion, wherein the threaded portion is configured to screw onto the squeezable bottle; and a filter fluidly connected to the cap piece, wherein the filter comprises a plurality of hydrophilic hollow fibers and hydrophobic hollow fibers, the hydrophobic fibers are configured to allow air to flow into the squeezable bottle; flowing a filtrate out through the mouthpiece from the filter in response to a pressure differential between an inside portion of the squeezable bottle and an outside portion of the squeezable bottle.

An article comprised of an oxidized carbon nanotube (CNT) membrane is disclosed. Incorporation of the article in a filtration system is further disclosed. A method for oxidizing a surface of a CNT membrane, e.g., by applying a direct-current (DC) potential in/on said CNT membrane is further disclosed.

An air pollution prevention system is disclosed and includes at least one detection and processing device and at least one cleaning device. The detection and processing device includes a nano actuator, a nano photodetector, a carbon nanotube and a microprocessor, which are integrated as a single chip device through semiconductor manufacturing processes. The detection and processing device configured to detect a particulate matter and gas contained in an air pollution source and output a control command. The cleaning device includes a nano blower, a nano filter and a controller. The cleaning device receives the control command outputted from the detection and processing device through the controller to control the nano blower for guiding the air pollution source to flow through the nano filter for filtration.

Carbon fiber composite additives, media incorporating the carbon fiber composites, and related methods are provided herein. In some aspects, a composition includes at least one medium; and a carbon fiber composite incorporated with the at least one medium, the carbon fiber composite including one or more carbon fibers with an epoxy resin matrix applied thereto to produce a composition having improved characteristics and filtration performance.

In one aspect, a material structure is disclosed, which includes a macroscopic porous substrate configured to receive a flow of a medium for passage of at least a portion thereof through the porous substrate. At least one porous coating is disposed on at least a portion of an inner surface of the porous substrate, wherein the porous coating comprises a matrix having a plurality of interconnected passages. The porous substrate and the coating are configured to treat at least one contaminant, if any, present in the flowing medium.

Carbon fiber composite additives, media incorporating the carbon fiber composites, and related methods are provided herein. In some aspects, a composition includes at least one medium; and a carbon fiber composite incorporated with the at least one medium, the carbon fiber composite including one or more carbon fibers with an epoxy resin matrix applied thereto to produce a composition having improved characteristics and filtration performance.

The invention provides a filtration system with a rotating core driving thimble opening and closing water passage, comprising a casing, a filter and a connector, wherein the filter and the connector are connected and fixed in an inner cavity of the casing, the casing consists of an upper cover of the casing and a lower cover of the casing, which are connected via a connecting member; a connector core of the present invention has a groove and a boss thereon, the connector core, a water intake thimble and a water outtake thimble are tightly pressed by a spring, when the connector is rotated, the water intake thimble and the water outtake thimbles are raised from the position of the groove to the position of the boss, and the water passage is opened. When disassembled, the connector is lowered from the position of the boss to the position of the groove, and the water passage is closed, preventing the leakage of the connector water due to the removal of a filter element. Due to the action of the spring, even if the water intake thimble and the water outtake thimble are worn seriously, the water intake sealing ring and the water outtake thimble sealing ring is attached to a water intake thimble sleeve and a water outtake thimble sleeve, realizing the sealing and not causing the leakage phenomenon.