A scum filtration system is used to separate, collect, capture, and remove surface scum and contaminants from a body of standing water. The scum filtration system includes at least one treatment assembly, a pumping system, and a main support structure. The at least one treatment assembly is used to filter scum, contaminants, and other similar material from a body of water such as, but not limited to, a pond or lake. The pumping system is used to drive water from a pond or lake into the at least one treatment assembly. The main support structure is used to support the at least one treatment assembly. Further, the main support structure is used to maintain the arrangement of the at least one treatment assembly.

A scum filtration system is used to separate, collect, capture, and remove surface scum and contaminants from a body of standing water. The scum filtration system includes at least one treatment assembly, a pumping system, and a main support structure. The at least one treatment assembly is used to filter scum, contaminants, and other similar material from a body of water such as, but not limited to, a pond or lake. The pumping system is used to drive water from a pond or lake into the at least one treatment assembly. The main support structure is used to support the at least one treatment assembly. Further, the main support structure is used to maintain the arrangement of the at least one treatment assembly.

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 rotary tool for a mechanical separator, the tool can optionally comprise: a center shaft having a longitudinal axis; a plurality of longitudinal paddles coupled to the shaft, at least one paddle of the plurality of paddles having an inner edge and aligned radially relative to the longitudinal axis, wherein the at least one paddle has an elongate extent along the longitudinal axis with opposing lateral sides along the elongate extent; and a flange having a triangular shape in a radial cross-section, the flange affixed to the inner edge of the at least one paddle and having an apex radially inward of the at least one paddle. Other examples of the application include the rotary tool having a plurality of tools and the mechanical separator having the capability of being raised or lowered to alter a residence time of slurry within the mechanical separator.

Screen designs and screens for a mechanical separation device are disclosed for separating solids from liquids in a process stream. A screen may have a plurality of openings, which are conical shaped, having a diameter of about 1.0 mm to about 1.4 mm in size that are formed on a stainless steel sheet.

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.

Provided is an apparatus and method for interacting with objects of interest. A filtering apparatus can comprise a channel system, through which objects of interest are able to diffuse. The channel system can comprise a channel of suitably configured non-uniform cross-sectional area along the length of the channel. In some embodiments, the channel system can be provided by a suitably configured porous bulk material. In some embodiments, channel system can comprise an interior chamber comprising filtered objects, where the filtered objects are contained on a first side by a first filtering surface, such as a semi-permeable membrane, and on a second side by second filtering surface, where the cross-sectional areas of a representative channel of the first and second filtering surfaces are not identical. The filtered objects can also be configured to interact with an externally applied body force, such as an electric field acting on charged filtered objects. The channel system is configured to interact with objects of interest on a scale which is smaller than a value several orders of magnitude larger than the mean free path of an object of interest. Some embodiments are configured to interact with particles, such as air molecules, water molecules, or aerosols. Other plate embodiments are configured to interact with waves or wavelike particles, such as electrons, photons, phonons or acoustic waves.

A filter and filter media configured and arranged for placement in a fuel stream is disclosed. The filter and filter media allow for filtering of liquid fuels, such as diesel fuel. In certain embodiments the filter media includes a media fiber (such as glass) and a binder fiber (such as bicomponent) that combine to create a media structure having low solidity and relatively low compressibility, and which contain a pore structure that avoids premature fouling of the filter by fuel degradation products.

A filtering apparatus formed by a plurality of channel systems. Each of the channel systems include an inlet port formed on an inlet side of the plate; no more than one outlet port formed on an outlet side of the plate; and a channel formed in the plate, the channel coupled to the inlet port and to the outlet port, wherein the ratio of the product of the capture area of the inlet ports of a channel system with the first transmissivity associated with the inlet ports to the product of the capture area of the outlet ports of a channel system with the second transmissivity associated with the outlet ports is greater than one. The channel system is configured to interact with objects of interest on a scale which is smaller than a value several orders of magnitude larger than the mean free path of an object of interest. Some plate embodiments are configured to interact with particles, such as air molecules, water molecules, or aerosols. Other plate embodiments are configured to interact with waves or wavelike particles, such as electrons, photons, phonons or acoustic waves.

One or more techniques and/or systems are disclosed for bypass flow filtering. A bypass valve filter includes at least one wall configured to engage a surface of a bypass valve and a filter surface having a plurality of openings between an inside of the at least one wall and an outside of the at least one wall. One or more openings of the plurality of openings have a first size and one or more other openings of the plurality of openings have a second size, wherein the first size is different than the second size to define different levels of filtering. The bypass valve further includes an open end configured to allow fluid flow therethrough and to the plurality of openings.