Disclosed is a method for manufacturing a photocatalytic filter for air purification. The present manufacturing method comprises the steps of: oxidizing a titanium metal to obtain a nanostructured titanium dioxide (TiO2); adding the nanostructured titanium dioxide to an acidic fluorine-containing solution to allow a reaction to occur therebetween for a predetermined period of time; and, after treatment in the acidic fluorine-containing solution, performing heat treatment on the nanostructured titanium dioxide.

A filter for water treatment exhibiting high filtering capability by preventing vortices, and a filter apparatus including same is provided. The filter for water treatment, which is a cross flow type filter, includes a metal thin plate and a plurality of micropores passing through the metal thin plate so as to filter water flowing on one side of the metal thin plate. A micropore includes an inlet port which is formed on one surface of the metal thin plate and through which water flows in; a discharge port which is formed on the other surface positioned opposite from the one surface of the metal thin plate, and through which the water flowing in through the inlet port is discharged; and a curved portion convexly curved towards the inside of the micropore connects the inlet port and the discharge port. The curved portion and the other surface form a singular surface.

An automated organic closed-loop grow enclosure that has rows of hydration trays that support removable (three across) grow containers for microgreens such as broccoli. Each grow container has a layer of soil. The seeds are treated with mycorrhizae and mixed with enriched top soil having a wicking agent. The grow containers are automatically watered once a day from the bottom and the capillary action of the soil lifts and holds the water in the grow container. LED Lighting is used to stimulate day and night cycles. The water is treated with magnets, turbulence and charcoal filters. The water cascades down the tiered trays using siphons. No other treatment of the water is necessary since almost no micro-organisms or organic material leak from the grow containers due to a filter barrier in the bottom of the grow container. Spectacular consistent growth rates are easily achieved.

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

A filtration assembly comprising can include a housing in fluid communication with an inlet for receiving waste water from a wellbore. The assembly can also include a filter device for filtering a substances from the waste water. The filtering device can include a plurality of pores that are sized and shaped to define first dimensions. The filter device may be configurable in response to stimulus for altering the dimensions of the plurality of pores of the filter device to define a second area that is different from the first area.

The present disclosure provides small diameter tubular porous fiber filters. These tubular porous fiber filters have many uses including but not limited a filtration medium for removing particles of 5 microns or less from liquid or air.

A filter element for the filtration of fluids can be manufactured from powdered metal using a laser manufacturing process. The powdered metal is deposited in a layer on fabrication platform and a laser beam is directed toward the layer of material so that the powdered metal granules fuse together to form a first component of the filter element. Successive layers of powdered metal can be deposited over the first component and also fused with the laser beam to form additional components. During the manufacturing process, the power or scan rate of the laser beam many be changed so that the formed layers of the filter element may have different porosity characteristics, for example, with certain portions being fluid permeable and other portions being fluid impermeable.

Devices and methods are provided that permit efficient and selective separation of liquid biological specimens into at least two constituent components to facilitate subsequent quantitative and qualitative analysis on at least one analyte of interest in at least one of the components. The devices generally include one or more sample deposition regions supported on a base. Each sample deposition region includes a separation membrane for separating the liquid biological specimen into two different fractions. The first fraction is trapped by the separation membrane while the second fraction passes through the separation membrane and into a respective collection membrane. The separation and collection membranes are easily separable from the devices and can be utilized for further processing and analysis.

A filter cartridge for use within a filter housing includes a filter tube, a flow port, and a filter plate. The filter tube can be formed of an elongated tubular member that is porous along its length. The flow port can be disposed at one end of the filter tube. The filter plate can be formed of a porous material disposed within the flow port. The filter tube and the filter plate may define a resin chamber for containing an adsorbent polymer resin.

An object of the present invention is to provide a filtering device which makes it possible to obtain a chemical liquid having excellent performance and enables filter media to have sufficiently long pot life. Another object of the present invention is to provide a purification device, a chemical liquid manufacturing device, a filtered substance to be purified, a chemical liquid, and an actinic ray-sensitive or radiation-sensitive resin composition. A filtering device according to an embodiment of the present invention has a first filter unit including a first filter, which satisfies at least one condition selected from the group consisting of following conditions 1 to 3, and a housing accommodating the first filter and a second filter unit including a second filter different from the first filter and a housing accommodating the second filter, in which the first filter unit and the second filter unit are independently disposed in a pipe line through which a substance to be purified is supplied.

Condition 1: the filter has a filter medium including two or more layers containing materials different from each other.

Condition 2: the filter has a filter medium including two or more layers having different pore structures.

Condition 3: the filter has a filter medium including one layer in which different materials are mixed together.