Provided are anti-pathogenic sintered nanoparticle compounds made of zeolite, silver nitrate (AgNO.sub.3), silver dioxide nanoparticles (Ag.sub.2O np), and graphene. Provided are enhanced granulated activated charcoal (EGAC) compounds made of granulated activated charcoal, silver nitrate (AgNO.sub.3), silver dioxide nanoparticles (Ag.sub.2O np), and graphene. Uses of the same are provided, including in enhanced filtration systems and/or pressurized wastewater filtration plants.

An internal combustion engine including a urea-water solution injection in the exhaust system, includes at least one urea-water solution tank, at least one pump, at least one intake line leading to the pump, at least one urea-water solution metering valve which is connected to the pump with the aid of a pressure line, and at least one return line which leads from the pump to the urea-water solution tank and at whose end opposite to the pump a filter element is situated, as well as at least one urea-water solution sensor situated in the urea-water solution tank.

Provided is a titanium filter for syringes and its manufacturing method, more particularly, a titanium filter for syringes which has an improved filtering power and high safety and its manufacturing method. The titanium filter for syringes comprises: a first body having a hollow hole formed on the inner side thereof; and a second body configured to extend in the longitudinal direction of the first body and to cover one side of the hollow hole, wherein the first body and the second body are composed of titanium powders.

A multilayer filter screen and the manufacturing method thereof are provided. The multilayer filter screen includes a conductive powder layer and a plastic powder layer. The conductive powder layer and the plastic powder layer are stacked up through a solidifying process. Therefore, the mechanical structural strength and the anti-static electricity function of the multilayer filter screen are improved.

A metal foam, such as copper metal foam, is used for water filtration and purification. A method is used to manufacture a new water purification device with the capability of killing bacteria and viruses using three dimensionally connected copper foam filter consisting of random or elongated channel pores and large surface area, thereby increasing the copper surface area in contact with contaminated water drops and purifying them. The copper foam water filter has pores on the order of several to tens of micrometers and porosity ranging from 50 percent to 75 percent to properly control the water filtration time and the contact time between the copper foam pore surface and water drops during filtration.

A filter element for the filtration of fluids can be manufactured from powdered metal using a laser manufacturing process. The powdered metal is deposited in a layer on fabrication platform and a laser beam is directed toward the layer of material so that the powdered metal granules fuse together to form a first component of the filter element. Successive layers of powdered metal can be deposited over the first component and also fused with the laser beam to form additional components. During the manufacturing process, the power or scan rate of the laser beam many be changed so that the formed layers of the filter element may have different porosity characteristics, for example, with certain portions being fluid permeable and other portions being fluid impermeable.

A filter cartridge for use within a filter housing includes a filter tube, a flow port, and a filter plate. The filter tube can be formed of an elongated tubular member that is porous along its length. The flow port can be disposed at one end of the filter tube. The filter plate can be formed of a porous material disposed within the flow port. The filter tube and the filter plate may define a resin chamber for containing an adsorbent polymer resin.

Treatment of radioactive waste comprising organic compounds and sulfur-containing compounds and/or halogen-containing compounds. An apparatus comprises a reaction vessel comprising a filter for carrying out thermal treatment of the waste and a thermal oxidizer. Utilizing co-reactants to reduce gas phase sulfur and halogen from treatment of wastes.

A filter for a chromatography system includes a filter body having an exterior wall, a cavity, an interior wall surrounding the cavity and a channel extending between the exterior and interior walls. The channel passes a flow of a liquid from the cavity. The filter body is formed of a sintered metal oxide material and has a pore size that is less than a particle size to be filtered liquid. In some embodiments the filter body is formed of zirconium oxide or aluminum oxide. The filters reduce or eliminate the types of reactions that occur between conventional filter bodies and chromatographic solvents and samples. The filters can be used at different locations in a chromatography system to remove particles that may be present in sources of chromatographic solvents or introduced into the chromatographic system flow by chromatographic components, such as pumps, valves and other chromatographic system components.

Treatment of radioactive waste comprising organic compounds, and sulfur-containing compounds and/or halogen-containing compounds. An apparatus comprises a reaction vessel comprising a filter for carrying out thermal treatment of the waste and a thermal oxidizer. Utilizing co-reactants to reduce gas phase sulfur and halogen from treatment of wastes.