A water filtration device comprising: a diffusiophoretic water filter having at least one channel having an inlet and an outlet and for receiving a colloidal suspension at the inlet and flowing the colloidal suspension between the inlet and the outlet in a flow direction, the channel being in contact with a diffusiophoretic-inducing membrane. Other devices and methods are also disclosed.

A water filtration device comprising: a diffusiophoretic water filter having at least one channel having an inlet and an outlet and for receiving a colloidal suspension at the inlet and flowing the colloidal suspension between the inlet and the outlet in a flow direction, the channel being in contact with a diffusiophoretic-inducing membrane. Other devices and methods are also disclosed.

The present technology provides a method for preparing an acid-reducing filter that includes depositing a mineral blend layer to a filter substrate, where the mineral blend layer comprises calcium carbonate and magnesium carbonate at a weight ratio of about 1:10 to about 10:1, the mineral blend is free of soluble halide or hydroxide salts of alkali or alkaline earth metals, and the mineral blend layer is insoluble in water.

The present technology provides a method for preparing an acid-reducing filter that includes depositing a mineral blend layer to a filter substrate, where the mineral blend layer comprises calcium carbonate and magnesium carbonate at a weight ratio of about 1:10 to about 10:1, the mineral blend is free of soluble halide or hydroxide salts of alkali or alkaline earth metals, and the mineral blend layer is insoluble in water.

A method for manufacturing an impregnated filter material includes preparing at least one impregnating solution comprising sulphate and phosphate; providing a filter material; and impregnating the filter material with at least one impregnating solution, at least once. In this manner, it is possible to manufacture an impregnated filter material for the removal of noxious substances and/or toxins, which includes sulphate and phosphate. The noxious substances and/or toxins can thereby be present in the form of gases and/or vapours.

A method for manufacturing an impregnated filter material includes preparing at least one impregnating solution comprising sulphate and phosphate; providing a filter material; and impregnating the filter material with at least one impregnating solution, at least once. In this manner, it is possible to manufacture an impregnated filter material for the removal of noxious substances and/or toxins, which includes sulphate and phosphate. The noxious substances and/or toxins can thereby be present in the form of gases and/or vapours.

The present invention relates to a multistage fiber filtering apparatus capable of selectively filtering depending on turbidity of raw water, in which a first filtration mode where the raw water passes through a fiber ball medium, a second filtration mode where the raw water passes through a fiber yarn medium, or a third filtration mode where the raw water passes through both of the fiber yarn medium and the fiber ball medium may be selectively operated.

The present invention relates to a multistage fiber filtering apparatus capable of selectively filtering depending on turbidity of raw water, in which a first filtration mode where the raw water passes through a fiber ball medium, a second filtration mode where the raw water passes through a fiber yarn medium, or a third filtration mode where the raw water passes through both of the fiber yarn medium and the fiber ball medium may be selectively operated.

Amorphous aluminosilicates are disclosed, and these amorphous aluminosilicates are characterized by a unique combination of high surface area, low oil absorption, and a significant fraction of the total pore volume resulting from micropores. These amorphous aluminosilicates can be used in various paint and coating applications, with the resultant dried or solid film capable of removing VOC's from the surrounding air.

Amorphous aluminosilicates are disclosed, and these amorphous aluminosilicates are characterized by a unique combination of high surface area, low oil absorption, and a significant fraction of the total pore volume resulting from micropores. These amorphous aluminosilicates can be used in various paint and coating applications, with the resultant dried or solid film capable of removing VOC's from the surrounding air.