A natural zeolite block for improving water quality that is capable of being built in rivers, streams, and reservoirs having point and non-point pollutant sources to purify the water polluted by pollutants, to remove the eutrophication in the water to prevent the occurrence of green and red tides, and to consistently purify heavy metals and all kinds of harmful substances flowing into the water and to a method for manufacturing the same.

A dehumidifying element includes a plurality of sheets that have moisture adsorption and desorption properties and that are stacked on top of each another. At least some of the sheets each have an irregular shape. The sheets each contain a hygroscopic agent having properties of a re-moistening-type glue that exhibits adherence when adsorbing moisture and that solidifies when being dried. The sheets are bonded to each other by the hygroscopic agent.

A filter includes a porous molded article, which is a sintered material of mixed powder containing activated carbon powder and thermoplastic resin powder. When water having a specific electrical resistance value of 18 MΩ.Math.cm or greater is caused to pass through the filter at a space velocity of 1200 hr.sup.−1, a specific electrical resistance value of the water after being caused to pass through the filter is 13 MΩ.Math.cm or greater. To provide a filter capable of efficiently removing metal ions in a treatment liquid and capable of easily obtaining a solution having an extremely low metal ion content.

The invention belongs to the field of eliminating pollutant gases. In particular, the invention belongs to the field of pollutant gas-absorbing material such as CO2, SO2, NOx and VOCs.

The present invention relates to a fresh composite or composite paste and a composite material comprising aggregates of recycled concrete, porous carbon, a binder and optionally water, as well as to the method for manufacturing the composite and the use thereof for sanitizing air (indoor or outdoor). The invention also relates to an article (for example, an anti-noise wall, a tunnel lining, an indoor decoration, an item of street furniture, etc.) comprising the composite according to the invention.

The present invention relates to a stable composition comprising super absorbent polymer and a bioactive agent. The present invention also relates to a method of coating seeds with said compositions and method of controlling weeds with said compositions.

A high-strength zeolite molding includes 10 parts by weight or more and 40 parts by weight or less of clay relative to 100 parts by weight of zeolite, and having a compressive strength of 20 N or more, in which the zeolite contains at least one zeolite that has Si/Al.sub.2 of 300 or more and 100000 or less and a water adsorption amount of 10 (g/100 g) or less under conditions of 25° C. and a relative pressure of 0.5, and the clay contains at least one clay that has a solid acidity of 0.15 mmol/g or less as determined by a NH.sub.3-TPD method. A method for producing includes kneading, molding, drying and disintegrating a product and then firing at 400° C. or higher and 700° C. or lower.

A flexible material is disclosed comprising a flexible substrate, a sorbent comprising zirconium hydroxide and a binder, wherein the solids weight ratio of the binder to the zirconium hydroxide is in the range 1:1 to 1:120. Also disclosed is a process for production of a fabric, comprising: providing a flexible material, providing at least one sorbent dispersion comprising zirconium hydroxide and a binder, applying the sorbent dispersion to the flexible material to produce a treated flexible material, squeezing the treated flexible material under pressure, and passing the pressed treated flexible material through a stenter.

The present disclosure provides for a porous gas sorbent monolith with superior gravimetric working capacity and volumetric capacity, a gas storage system including a porous gas sorbent monolith of the present disclosure, methods of making the same, and method for storing a gas. The porous gas sorbent monolith includes a gas adsorbing material and a non-aqueous binder.

A preparation method of a granular adsorbent is provided, including the following: adding a pyrrole monomer to an acidic solution, and adding an oxidant as an initiator to allow a polymerization reaction of the pyrrole monomer to produce polypyrrole (PPy), where an adsorption material powder is added to a reaction system before, during, or immediately after the polymerization reaction, and a resulting mixture is thoroughly stirred; after the polymerization reaction is completed, filtering a resulting reaction system to obtain a filter cake, which is the granular adsorbent; or subjecting the resulting reaction system to centrifugal sedimentation to obtain the monolithic adsorbent. In the present disclosure, the pyrrole monomer is subjected to a polymerization reaction to generate PPy; before being tightly stacked, network structures of PPy wrap the adsorption material powder; and the granular adsorbent is formed through sedimentation and stacking.

The present invention relates to a molding comprising a zeolitic material having framework type MWW, wherein the framework structure comprises Ti, Si, and O, wherein the zeolitic material further comprises Zn and an alkaline earth metal M, the molding further comprising a binder, wherein the molding exhibits a specific Lewis acidity. Further, the present invention relates to the method of preparation of said molding and the use thereof.