Methods, compositions, systems and devices are provided in which zeolite particles, preferably of silicon and aluminum, are used as desiccants. In embodiments a plurality of zeolite particles are provided that are less than 1 mm in size. The particles may be arrayed such that at least some of the plurality of particles are spaced apart from each other and may be arrayed in rows and columns. Embodiments provide the particles are useful or removing water under ambient conditions and in removing water from air or material and in an embodiment removing water from plant material, such as harvested crop material, or where the dried air is contacted with plant material. Microwave radiation may be used to efficiently and in a cost effective manner dehydrate the rehydrated particles.

This disclosure provides new filtration systems, filtration media, and processes for removing per- and polyfluoroalkyl substances (PFAS) from PFAS-contaminated water. The filtration systems, filtration media, and processes use a combination an activated carbon and a calcium sulfate which are mixed and immobilized or contained within a filter component such as a filter housing which provides a flow path for the contaminated water. This combination of components can remove PFAS contaminants to concentrations below the level of detection and provides other unexpected benefits as disclosed herein.

A system and method of applied radial technology chromatography using a plurality of beads is disclosed, with each bead comprising one or more pores therein having a diameter of about 250 Å to about 5000 Å, and each bead having an average radius between about 100 μm to about 250 μm. Also disclosed are processes for selecting beads for use in a radial flow chromatography column, and for purifying an unclarified feed stream using a radial flow chromatography column.

A chromatography device (1; 101) comprising: —at least one chromatography material unit (3), wherein said chromatography material unit comprises a convection-based chromatography material; —at least one fluid distribution system (7) which is configured to distribute fluid into and out from the at least one chromatography material unit (3); —an inlet (15); —at least one inlet fluid channel (17a, 17b) connecting the inlet (15) with each chromatography material unit (3) via the fluid distribution system (7); —an outlet (19); and —at least one outlet fluid channel (21) connecting the outlet (19) with each chromatography material unit (3) via the fluid distribution system (7), wherein at least some parts of said chromatography device (1; 101) are overmolded and sealed together by plastic or elastomer leaving at least the inlet (15) and the outlet (19) open.

Purified air is provided, having a TVOC content of from less than 5 ppb to about 500 ppb, a Biologicals content of from less than 1 CFU/M.sup.3 to 150 CFU/M.sup.3 and a Particulate content of from about 1,000 0.3 μm particles per ft.sup.3 to about 50,000 0.3 μm particles per ft.sup.3, or from about 600 0.5 μm particles per ft.sup.3 to about 500,000 0.5 μm particles per ft.sup.3.

The disclosure provides for an adsorbent bed assembly for separation of gaseous mixtures. The assembly includes a body defining an interior cavity. The body includes an outer shell, and first and second ends engaged with the outer shell that include inputs/outputs. A central support structure is positioned within the interior cavity and is engaged with the body or forms a portion thereof. Anti-telescoping devices are positioned about the central support structure, at least one of which is affixed to the central support structure. Each anti-telescoping device includes a plurality of spokes extending within the interior cavity from or proximate the central support structure towards the outer shell.

The disclosure relates to systems and methods for generating a brine solution using a salt bag for recharging zirconium phosphate in a reusable sorbent module. The salt bag can be a double layer bag. An inner water permeable bag can contain solid salts and can be surrounded by an outer water impermeable bag. Water can be added to dissolve the salts in the inner bag and the resulting solution can be collected as a brine solution for use in recharging the zirconium phosphate.

The present invention relates to cylinder packages utilized in the delivery of highly toxic and/or flammable compounds to semiconductor manufacturers. More specifically, the present invention provides a cartridge adapted to removably attach to the gas outlet of a gas discharge passageway in a cylinder valve provided on a toxic gas containing cylinder package, the cartridge comprising a cylindrically shaped housing having at least one end fitted with a barrier member permeable to the toxic gas contained within the cylinder package and the housing containing a toxic-gas getter material.

The present application relates to a method for manufacturing an inverse opal structure membrane filter, the method comprising the steps of: preparing a mixed solution by mixing a nanoparticle dispersion solution and a sacrificial particle dispersion solution; applying the mixed solution onto a substrate to dry it; and heat-treating the mixed solution, wherein the surface of the sacrificial particles is modified by positive charges or negative charges.

A column for removal of a component from a fluid is disclosed. The column has a compartment with a cross sectional area. The compartment contains beads having a diameter. A ligand selected to bind to the component is coupled to the beads. The cross-sectional area and bead diameter are selected to maintain a flow velocity of the fluid within the compartment below a first threshold, thereby reducing leaching of the ligand into the fluid. Also described herein is an adsorbent comprising a ligand that is attached to a substrate by an amine bond, wherein the ligand is resistant to dissociation from the substrate.