The present disclosure discloses a cellulose nanocrystal-supported sodium alginate adsorbent and use thereof in enriching organic phosphorus in wastewater, belonging to the technical field of environmental engineering. Cellulose nanocrystals are prepared from papermaking deinking sludge through chemical conditioning, drying, crushing, chemical oxidation and microwave assisted separation, and then supported on alginate under weakly acidic conditions to provide the cellulose nanocrystals with the ability to enrich organic phosphorus in wastewater. By using this method, the content of organic phosphorus in the wastewater can be significantly reduced, the total phosphorus in the effluent can be reduced, and the wastewater treatment effluent can satisfy the discharge standard. The enriched organic phosphorus can be recycled as a phosphorus resource through incineration. In addition, the papermaking deinking sludge is made into the product with a high added value, so the applicability of the papermaking deinking sludge is broadened. The present disclosure has high feasibility.

A stable, solid, externally dry particulate system for controlling humidity to a selected range comprising a hydrophobic silica component and a hydrophilic silica component where the hydrophobic component comprises about 4 to 10 wt. % hydrophobic nano silica particles and from about 96 to 90 wt. % of a mixture of a saturated solution of at least one soluble solid and undissolved at least one soluble solid, and the hydrophilic micro silica component comprises from about 20 to 40 wt. % hydrophilic silica particles and about 80 to 60 wt.% of the mixture of the saturated solution of at least one soluble solid and the undissolved at least one soluble solid. The saturated solution is made of at least one soluble solid dissolved into a polar liquid and has an equilibrium relative humidity when a saturated solution in the polar liquid.

A chromatographic material including a substrate having a surface and having a polymeric layer covalently bound to the surface; the polymeric layer comprising polymer molecules covalently attached to the surface of the substrate, each polymer molecule being attached to the surface via multiple siloxane bonds and each polymer molecule being connected to one or more functionalizing compounds that each comprise a functional group, wherein the polymeric layer is formed by covalently attaching polymer molecules to the surface of the substrate via multiple siloxane bonds, each polymer molecule containing multiple first reactive groups, and reacting the first reactive groups of the attached polymer molecules with at least one functionalizing compound that comprises a second reactive group that is reactive with the first reactive groups and that further comprises a functional group. Preferred conditions of reacting the polymer with the substrate include elevated temperature and reduced pressure.

A device for separating analytes is disclosed. The device has a sample injector, sample injection needle, sample reservoir container in communication with the sample injector, chromatography column downstream of the sample injector, and fluid conduits connecting the sample injector and the column. The interior surfaces of the fluid conduits, sample injector, sample reservoir container, and column form a flow path having wetted surfaces. A portion of the wetted surfaces of the flow path are coated with an alkylsilyl coating that is inert to at least one of the analytes. The alkylsilyl coating has the Formula I: ##STR00001##
R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are each independently selected from (C.sub.1-C.sub.6)alkoxy, —NH(C.sub.1-C.sub.6)alkyl, —N((C.sub.1-C.sub.6)alkyl).sub.2, OH, OR.sup.A, and halo. R.sup.A represents a point of attachment to the interior surfaces of the fluidic system. At least one of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6 is OR.sup.A. X is (C.sub.1-C.sub.20)alkyl, —O[(CH.sub.2).sub.2O].sub.1-20—, —(C.sub.1-C.sub.10)[NH(CO)NH(C.sub.1-C.sub.10)].sub.1-20—, or —(C.sub.1-C.sub.10)[alkylphenyl(C.sub.1-C.sub.10)alkyl].sub.1-20-.

Sorptive gas separators can employ contactors having various sorbents blended together. The various sorbents used to make a blended sorbent contactor can be selected for their various physical and chemical properties, which will allow operators to customize formulations and structural configurations to obtain optimum performance of sorptive gas separators using blended sorbents.

One aspect of the present invention relates to a coated resin particle including: a water-absorbent resin particle; and a coating layer that coats at least a part of a surface of the water-absorbent resin particle, in which the coating layer contains a water-soluble component in which a solubility in 100 g of water is in a range of 1.0 g or more and 150 g or less at 25° C.

Air filter media comprising at least one active bead layer comprises an antistatic agent and polyethylenimine coated polymeric beads that can provide better formaldehyde abatement properties than incumbent activated carbon filters and can be prepared by using existing processing facilities for manufacture of incumbent activated carbon filters.

A porous sorbent ceramic product includes a three-dimensional structure having an electrically conductive ceramic material, wherein the conductive ceramic material has an open cell structure with a plurality of intra-material pores, a sorbent additive primarily present in the intra-material pores of the conductive ceramic material for adsorption of a gas, and at least two electrodes in electrical communication with the conductive ceramic material.

The present invention is directed to a method, device and system to capture carbon dioxide in air using solid amine sorbents and using a radio frequency and/or microwave generator to desorb the carbon dioxide by directly exciting the amine-carbon bond thereby significantly reducing the energy cost of releasing the carbon dioxide.

A nucleophilic substitution reaction to crosslink cyclodextrin (CD) polymer with rigid aromatic groups, providing a high surface area, mesoporous CD-containing polymers (P-CDPs). The P-CDPs can be used for removing organic contaminants from water. By encapsulating pollutants to form well-defined host-guest complexes with complementary selectivities to activated carbon (AC) sorbents. The P-CDPs can rapidly sequester pharmaceuticals, pesticides, and other organic micropollutants, achieving equilibrium binding capacity in seconds with adsorption rate constants 15-200 times greater than ACs and nonporous CD sorbents. The CD polymer can be regenerated several times, through a room temperature washing procedure, with no loss in performance.