A filtering film includes a porous substrate and a membrane disposed on the porous substrate. The membrane includes a plurality of fibers of one or more bio-degradable materials. The fibers have an average diameter of about 50 nm to about 3 μm. The one or more bio-degradable materials has a melt flow index of at least 5 g/10 min at 210° C. at a load of 2.16 kg.

A method and apparatus for collection and disposal or utilization as a carbon neutral fuel of fats, oil and grease that includes a first porous container, a second porous container, and a grease trap having an inlet and an outlet. The first porous container is positioned proximate the grease trap inlet and the second porous container is positioned proximate the grease trap outlet. The first and second porous containers are formed of a porous fabric and contain an absorbent, organic hydrocarbon material capable of absorbing a quantity of fats, oil and grease. The second porous container may be positioned on either side of the grease trap outlet (within the grease trap or intermediate the outlet and an exit pipe) and may be held in a stationary manner via a tether and/or a hinged door having a flange for capturing and holding the porous container in a stationary manner.

The present invention relates to nanofilters and nanofliter systems for personal and health care protective equipment to protect against health and safety hazards having application in healthcare, industrial, public, domestic environments, They are applied to face masks, respirators, face shields, protective glasses and clothes, to protect healthcare workers and other individuals against microparticles, dust, bacteria, fumes, vapors, gases, allergens, air pollutants, airborne microorganisms and especially nanosized viruses such as influenza, HIV, SARs, SARs-CoV-2. It also relates to a method for fabricating thereof with higher filtration efficiency, and to Nano-face masks, respirators, Nano-face shields exhibiting antibacterial, anti-viral protection and particulate-filtering due to the excellent barrier and filtration properties of the nanofliter system. It is also applied to the delivery of nanoparticles, organic or inorganic with antibacterial, antiviral properties, drugs, therapeutic agents, nanomedicines, or/and compounds, sensors,

An apparatus for collection and disposal of fats, oil and grease that includes a fabric container having at least one open end, a biogradable material capable of absorbing a large quantity of fats, oil and grease positioned in the container through the open end, the container and biogradable material adapted for being placed in a source of fats, oil and/or grease for absorbing the fats, oil and/or grease for removal from the source and for transport to a location for processing.

An apparatus for collection and disposal of fats, oil and grease that includes a fabric container having at least one open end, a biogradable material capable of absorbing a large quantity of fats, oil and grease positioned in the container through the open end, the container and biogradable material adapted for being placed in a source of fats, oil and/or grease for absorbing the fats, oil and/or grease for removal from the source and for transport to a location for processing.

A cigarette has a tipping wrapper connecting a mouthpiece rod and a tobacco rod, wherein the mouthpiece rod and the tobacco rod each have a cylindrical shape with a respective longitudinal axis arranged as a surface normal of the base area of the respective cylindrical shape, wherein the tipping wrapper is circumferentially wrapped around the mouthpiece rod and the tobacco rod at least in part along their consecutively arranged longitudinal axes, has an inner surface directed towards the mouthpiece rod and tobacco rod and an oppositely arranged outer surface and includes at least wood pulp. The tipping wrapper further includes at least 20% of clay and/or Al(OH).sub.3, has a porosity equal to or less than 5.0 C.U. and a surface smoothness of more than 100 sec (Bekk) on the outer surface.

A method for controlling fiber cross-alignment in a nanofiber membrane, comprising: providing a multiple segment collector in an electrospinning device including a first and second segment electrically isolated from an intermediate segment positioned between the first and second segment, collectively presenting a cylindrical structure, rotating the cylindrical structure around a longitudinal axis proximate to an electrically charged fiber emitter; electrically grounding or charging edge conductors circumferentially resident on the first and second segment, maintaining intermediate collector electrically neutral; dispensing electrospun fiber toward the collector, the fiber attaching to edge conductors and spanning the separation space between edge conductors; attracting electrospun fiber attached to the edge conductors to the surface of the cylindrical structure, forming a first fiber layer; increasing or decreasing rotation speed of the cylindrical structure to alter the angular cross-alignment relationship between aligned nanofibers in adjacent layers, the rotation speed being altered to achieve a target relational angle.

An air filter apparatus may comprise a frame and a hemp-based filter disposed within the frame. The hemp-based filter is configured to sequester carbon dioxide in response to air flowing through the hemp-based filter.

Provided is a filter plug, a well system, and a method for fracturing a well system. The filter plug, in one aspect, includes a filtration skeleton. The filter plug according to this aspect further includes a degradable material in contact with the filtration skeleton, the filtration skeleton and degradable material configured to lodge within a port in a wellbore, and thus substantially plug the port when the degradable material remains intact with the filtration skeleton and allow the filtration skeleton to filter particulate matter as fluid passes there through when the degradable material no longer remains intact with the filtration skeleton.

Filter media and filters comprising a fibrous material, a bonding material, and a flame-resistant treatment composition are disclosed herein. Methods of making and using the same are also disclosed herein.