A DAC method as well as a unit containing an adsorber structure having an array of adsorber elements with a support layer and on both sides thereof a sorbent layer (1, 2), wherein the adsorber elements are parallel and spaced apart forming parallel fluid passages for flow-through of ambient atmospheric air and steam. The method involves the following sequential and repeating steps: (a) adsorption by flow-through; (b) isolating the sorbent; (c) injecting a stream of saturated steam through the parallel fluid passages and inducing an increase of the temperature; (d) extracting desorbed carbon dioxide from the unit and separating it from steam; (e) bringing the sorbent material to ambient temperature conditions wherein in step (a) the speed of the air is in the range of 2-8 m/s, and wherein at least in step (d) the speed of the steam is at least 0.2 m/s.

Methods of disposing of liquid radioactive medical waste are disclosed. The methods relate to depositing liquid radioactive medical waste into or onto a substrate that includes (a)(i) fibers, or (ii) both fibers and foam, and (b) activated carbon. The substrate adsorbs liquid radioactive medical waste to facilitate safe disposal of liquid radioactive medical waste.

Waste disposal substrates are also disclosed. The waste disposal substrates include (a) at least one layer of fibers, (b) at least one layer containing activated carbon; and (c) at least one layer containing superabsorbent particles. Methods of using waste disposal substrates are also disclosed. Methods of using a waste disposal substrate may include contacting a waste disposal substrate with a liquid fluid, the waste disposal substrate containing: (a) at least one layer of fibers, (b) at least one layer containing activated carbon; and (c) at least one layer containing superabsorbent particles. The liquid fluid, or a component of the liquid fluid, is collected, dissolved, adsorbed, inactivated, destroyed, and/or disposed of within the waste disposal substrate.

Provided are a composition for forming an absorption-desorption sheet, an absorption-desorption sheet including the same, and a method of preparing the absorption-desorption sheet. The composition for forming an absorption-desorption sheet includes: a polymerizable first monomer or oligmer comprising an ionic hydrophilic group; a polymerizable second monomer or oligmer comprising a non-ionic hydrophilic group; and a deliquescent salt that has excellent absorption-desorption performance- and allows repeated use of the absorption-desorption sheet. In addition, the absorption-desorption sheet has antibacterial and deodorant performance, and thus, is able to inhibit the growth of bacteria and fungi in a humid environment.

A dehumidifying element includes a plurality of sheets that have moisture adsorption and desorption properties and that are stacked on top of each another. At least some of the sheets each have an irregular shape. The sheets each contain a hygroscopic agent having properties of a re-moistening-type glue that exhibits adherence when adsorbing moisture and that solidifies when being dried. The sheets are bonded to each other by the hygroscopic agent.

A process for the efficient transfer of molecules between phases employing mesoporous poly (aryl ether ketone) hollow fiber membranes is provided. The method addresses the controlled transfer of reactants into and removal of reaction products from a reaction media and the removal and separation of target molecules from process streams by membrane-assisted liquid-liquid extraction. A number of possible modes of liquid-liquid extraction are possible according to the invention by utilizing porous poly (aryl ether ketone) hollow fiber membranes of Janus-like structure that exhibit a combination of hydrophilic and hydrophobic surface characteristics. The method of the present invention can address the continuous manufacture of chemicals in membrane reactors and is useful for a broad range of separation applications, including separation and recovery of active pharmaceutical ingredients.

Methods and (articles of manufacture therefrom) including forming an elastic film from a polymer composition; tensioning the elastic film to a stretch ratio of between 2 and 6 in the MD; laminating the elastic film to an extensible facing to provide an elastomeric laminate having a CD hysteresis loss of 70% or less and an MD hysteresis loss of 50% or less.

A method of manufacturing a hydrocarbon absorbent structure comprises providing a lower sheet of material and dispensing a hydrocarbon absorbent polymer mixture thereon. The polymer mixture is then preheated so as to at least partially melt the polymer mixture. An upper sheet of material is then provided onto the at least partially melted polymer mixture on the lower sheet of material. The lower sheet of material, polymer mixture and upper sheet of material are then laminated together to form a hydrocarbon absorbent laminate structure.

The present invention relates to a sheet filter material, in particular having an aerosol filter function and/or a particle filter function, preferably having a protective function against chemical, biological and/or chemical harmful and toxic substances, and to a method for the production thereof. The sheet filter material is particularly suitable for producing protective equipment, protective objects, sports and leisure clothing and filters and filter materials of all types.

A filter bag is disclosed that comprises a porous membrane having a strength in the transverse direction to improve durability. There is a filter assembly for filtering particulates from a gas stream comprising a support substructure and a filter bag at least partially surrounding the support substructure. The filter bag comprises a porous membrane having a upstream surface exposed to the gas stream. The porous membrane is lightweight and has a structure to collect the particulates on the upstream surface. In particular, the porous membrane has a bubble point of 0.06 MPa or more and has a strength in a transverse direction that is 100 N/m or more. Other filter bags disclosed comprise a laminate comprising a porous membrane having a bubble point of 0.06 MPa or more and a second layer that acts as a sacrificial material.

Provided is a stretchable film having excellent stretchability, excellent air permeability, and an excellent deodorizing property. Also provided is an article including such stretchable film. A stretchable film of the present invention is a film having stretchability, and includes a deodorant. The stretchable film of the present invention is a film having stretchability, and has a deodorization efficiency for each of ammonia and hydrogen sulfide 3 hours after the start of a deodorization test, the deodorization efficiency being measured by a detector tube method, of 10% or more.