Pouring spouts used to filter bottled liquids as they are poured from a bottle containing such liquids.

The present invention provides a method for treating a used particulate filter, comprising: removing particulates from the particulate filter; and introducing simulated ash into inlet channels of the particulate filter after removing the particulates.

The technology disclosed herein relates to filter assemblies and methods of making filter assemblies. One filter assembly has a first sheet of filter media having a first perimeter region and a second sheet of filter media having a second perimeter region. The first perimeter region and the second perimeter region are bonded in a rim region. A plurality of adsorbent beads are disposed between the first sheet of filter media and the second sheet of filter media, and a substantial portion of the plurality of adsorbent beads are unbonded. Other embodiments are also described.

A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires in the presence of carbon together into a unitary cellular structure.

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 gas filtration device includes a self-supporting graphene layer (1) made of a graphene material. The graphene material includes graphene and/or functionalized graphene. The gas filtration device of the present invention enhances the filtration of pollutants in the atmosphere and effectively avoids secondary pollution.

The inventive subject matter disclosed herein includes multiple novel filter media comprising activated rice husks, as well as filtration systems and methods for removing contaminants from an aqueous solution, such as wastewater produced as a byproduct of various industrial processes, including mining, oil and gas exploration and extraction, farming, manufacturing, and the like.

The inventive subject matter disclosed herein includes multiple novel filter media made of activated rice husks, as well as filtration systems and methods for removing contaminants from an aqueous solution, such as wastewater produced as a byproduct of various industrial processes, including mining, oil and gas exploration and extraction, farming, manufacturing, and the like.

The present invention related to low-chloride alkylated cyclodextrin compositions, along with processes for preparing and using the same. The processes of the present invention provide alkylated cyclodextrins with low levels of drug-degrading agents and chloride.

The present invention related to low-chloride alkylated cyclodextrin compositions, along with processes for preparing and using the same. The processes of the present invention provide alkylated cyclodextrins with low levels of drug-degrading agents and chloride.