The invention relates to a corrosion-resistant, reactive adsorbent which is made up of element iron on a carbon carrier plus sulfur and additional phosphorus as well as a method for producing this reactive adsorbent and use thereof for removal of reductively degradable pollutants in contaminated groundwater and wastewater.

Construction for absorbing a fluid, for example, a liquid or gaseous, organic chemical, has an extended web, fabric, yarn or foam member and associated with the extended web, fabric, yarn or foam member is a water-insoluble polymer. The water-insoluble polymer can absorb the fluid organic chemical, and the construction provides for contact of the water-insoluble polymer with the fluid organic chemical when deployed in an environment where the fluid organic chemical may be present for absorption. The construction may be employed in aquatic, aqueous, or dry environments, as a blotter, a wipe or sponge, a filter, in a cartridge, and so forth.

Construction for absorbing a fluid, for example, a liquid or gaseous, organic chemical, has an extended web, fabric, yarn or foam member and associated with the extended web, fabric, yarn or foam member is a water-insoluble polymer. The water-insoluble polymer can absorb the fluid organic chemical, and the construction provides for contact of the water-insoluble polymer with the fluid organic chemical when deployed in an environment where the fluid organic chemical may be present for absorption. The construction may be employed in aquatic, aqueous, or dry environments, as a blotter, a wipe or sponge, a filter, in a cartridge, and so forth.

An absorbent core composite is disclosed for incorporation into a disposable absorbent article. The composite includes a first material layer and a second material layer (preferably nonwoven) partially secured to the first material layer to define at least one pocket therebetween. Preferably, multiple pockets are defined, except in the case of where a generally uniform layer or bed of absorbent is preferred or better suited for the application. The pocket is said have a fixed initial volume. Further, an aggregate of absorbent particles is provided in the pocket(s) to occupy a portion of the fixed initial volume. The absorbent particles are preferably SAP particles and is characterized by a dry volume associated with a dry state and a swell volume associated with a liquid saturation state. In respect to or for the pocket, the aggregate is characterized by a collective dry volume and a collective swell volume, wherein the pocket has an initial configuration that retains the aggregate therein.

A method is disclosed of forming core-shell iron oxide-polymer nanofiber composites. The method includes synthesizing composite nanofibers of polyacrylonitrile (PAN) with embedded hematite (α-Fe.sub.2O.sub.3) nanoparticles via a single-pot electrospinning synthesis; and generating a core-shell nanofiber composite through a subsequent hydrothermal growth of α-Fe.sub.2O.sub.3 nanostructures on the composite nanofibers of polyacrylonitrile (PAN) with the embedded hematite (α-Fe.sub.2O.sub.3) nanoparticles.

A method of removing an organic pollutant from water by contacting the water with a ball milled and sonicated oil fly ash powder to adsorb the organic pollutant onto the ball milled and sonicated oil fly ash powder. A method of producing a ball milled and sonicated oil fly ash powder involving ball milling oil fly ash to provide ball milled oil fly ash particles with an average particle size of less than 1 μm and sonicating the ball milled oil fly ash particles in an aqueous medium to form the ball milled and sonicated oil fly ash powder. A method of improving recovery of valuable metals/elements from oil fly ash.

There is provided a system and a method for transferring energy, the method comprising the steps of: a)feeding a material comprising an absorbed fluid into a tube, b) heating the tube so that the fluid is desorbed in gas phase from the material, so that a fluid flow is created by the desorbed fluid in the tube, causing a flow of the material present as particles, and c) performing one of i) separating the material from the fluid so that a charged material is obtained, and ii)cooling the material and fluid so that the fluid is absorbed by the material whereby heat is released. An advantage is that no active transport means such as pumps are needed to transport the material during charging.

The process of reacting nanoscale ce-MoS.sub.2 nanosheets anchored on oxide support with lead in solution at room temperature whereby the reaction is rapid and spontaneous resulting in the formation of PbMoO.sub.4-xS.sub.x in the process of scavenging Pb.sup.2+ and Pb.sup.4+ present in the solution.

A platform and system for concentration, reduction and regeneration of heavy metals and other contaminants from fluids is provided. The platform has a three-tiered hierarchical porous structure, composed of micropores formed by woven carbon cloth, nanopores formed after carbon nanotube growth on the cloth fibers and mesopores formed by a polymer outer layer. The material of the platform can be incorporated into cells with two electrodes with properly functionalized PDAN grafted 3D carbon as an anode and cathode respectively. Metal ions and toxic anions in water will be captured selectively by primary amine, secondary amine and quaternary amine groups in porous PDAN on the anode. Metals are captured and reduced by the cathode.

A method of removing an organic pollutant from water by contacting the water with a ball milled and sonicated oil fly ash powder to adsorb the organic pollutant onto the ball milled and sonicated oil fly ash powder. A method of producing a ball milled and sonicated oil fly ash powder involving ball milling oil fly ash to provide ball milled oil fly ash particles with an average particle size of less than 1 μm and sonicating the ball milled oil fly ash particles in an aqueous medium to form the ball milled and sonicated oil fly ash powder. A method of improving recovery of valuable metals/elements from oil fly ash.