A method of mitigating the environmental impact of invasive fish in rivers and lakes is provided. The method comprising recruiting overfishing of a species of fish harvested from one or more rivers or lakes in which the species of fish is invasive, obtaining fish bones from the harvested fish, producing a sorbent from the fish bones by drying and milling the fish bones into sorbent particles having a metal sorption capacity effective for treating a metal contaminated material, and treating metal contaminated material with an effective amount of the sorbent to form immobilized reaction products of the metal contaminated material and the sorbent.

Provided are a method for preparing a three-dimensional lithium adsorbent, which produces a lithium adsorbent having a high lithium adsorption rate per unit volume and unit mass, strong durability, and various shapes, and a three-dimensional lithium adsorbent using the same.

A preparation method for a high-adsorption-capacity granular aluminum salt lithium extraction adsorbent includes: step 1, preparation of lithium-intercalated aluminum salt precursor slurry by uniformly mixing an aluminum source, a lithium source and water, and then adding alkali liquor to adjust the pH value so as to obtain the wet lithium-intercalated aluminum salt precursor; step 2, integrated granulation, which includes preparing a VC composite adhesive; blending and homogenizing; and granulating; and step 3, drying, washing and activating the granulated adsorbent to obtain the granular aluminum salt lithium extraction adsorbent. The resulting aluminum salt lithium extraction adsorbent prepared is of high porosity, high lithium adsorption capacity, high lithium extraction rate, long cycle service life and the like, is effectively used for lithium extraction of salt lakes with high magnesium-lithium ratio and low lithium grade, including lithium chloride type salt lakes, lithium sulfate type salt lakes and salt lakes combining the two types.

The present invention is a solid material for recovering carbon dioxide, the solid material including from 50% by weight to 99% by weight of sodium ferrite and from 1% by weight to 50% by weight of an organic binder or an inorganic binder, having an average particle diameter of 1 mm to 10 mm, and having a specific surface area of 1 m.sup.2/g to 50 m.sup.2/g, wherein an axial ratio of an average major axis diameter to an average minor axis diameter of primary particles of the sodium ferrite is from 1 to 2.

A method of mitigating the environmental impact of invasive fish in rivers and lakes is provided. The method comprising recruiting overfishing of a species of fish harvested from one or more rivers or lakes in which the species of fish is invasive, obtaining fish bones from the harvested fish, producing a sorbent from the fish bones by drying and milling the fish bones into sorbent particles having a metal sorption capacity effective for treating a metal contaminated material, and treating metal contaminated material with an effective amount of the sorbent to form immobilized reaction products of the metal contaminated material and the sorbent.

The present disclosure is directed to stationary phase materials for performing size exclusion chromatography. Embodiments of the present disclosure feature hydroxy-terminated polyethylene glycol surface modified silica particle stationary phase materials, which are optionally also methoxy-terminated polyethylene glycol surface modified.

A particulate, heterogeneous solid CO.sub.2 absorbent composition, comprising decomposition products of Ca.sub.3Al.sub.2O.sub.6 after having been heated to a temperature between 500 C. and 925 C. in the presence of H.sub.2O and CO.sub.2 for a period of time sufficient to allow the Ca.sub.3Al.sub.2O.sub.6 to react and form the particulate, heterogeneous absorbent composition which exhibits a higher concentration of aluminum than calcium in the particle core but a higher concentration of calcium than aluminum at the particle surface. The invention also comprises a method for preparing the particulate, heterogeneous product as well as a method for utilizing the composition for separating CO.sub.2 from a process gas.

A method for removing contaminants from a gas stream including contacting a gas stream comprising hydrocarbons and sulfur contaminants with a modified nanocomposite adsorbent. Also provided are compositions and processes for forming compositions of a modified nanocomposite adsorbent composition for removing sulfur contaminants from a hydrocarbon stream. Additionally, provided is system for removing sulfur impurities from a gaseous hydrocarbon stream, where the system includes a plurality of adsorbent vessels arranged in series, where the adsorbent vessels include an emulsion of a modified nanocomposite adsorbent composition.

Embodiments of the present disclosure may include the synthesis of a sorbent spinel material, which can be essential for applications necessitating specific chemical attributes and high lithium loading capacities. The disclosure includes preparing a precursor blend from specific reactants, including manganese compounds, and calcining the precursor blend at a determined temperature and duration to form an intermediate blend with desired constituents at specific ratios. In some embodiments, cooling and milling may be performed to achieve the final product. In some embodiments the process involves adjusting the reaction conditions to bias the composition of the intermediate blend, which may include different proportions of Mn.sub.3O.sub.4, Mn.sub.2O.sub.3, and lithium manganese oxide (LMO), resulting in variable lithium loading capacities (9.0 to 23.0 mg/g of LMO) when higher-quality reactants are used.

A porous material is prepared mixing at least one bio-based polymer and at least one polyionic biopolymer and water, in an aqueous solution of a polyvalent metal ion to prepare a gel, exposing the gel to a water-miscible solvent to obtain a gel, and drying of the gel. The porous material obtained in the method finds application as thermal insulation material, as carrier material for load and release of actives, for electrode materials in batteries, fuels cells or electrolysis, for catalysis, for capacitors, for consumer electronics, for building and construction applications, for home and commercial appliance applications, for temperature-controlled logistics applications, for vacuum insulation applications, for battery applications, for apparel applications, for food applications, for cosmetic applications, for biomedical applications, for agricultural applications, for consumer applications, for packaging applications or for pharmaceutical application or as carrier materials or adsorbents.