The present disclosure provides a method for treating the surface of a microporous polymeric membrane, comprising immersing a microporous polymeric membrane in a liquid; and applying ultrasonic waves to the microporous polymeric membrane immersed in the liquid.

The present disclosure provides a method for treating the surface of a microporous polymeric membrane, comprising immersing a microporous polymeric membrane in a liquid; and applying ultrasonic waves to the microporous polymeric membrane immersed in the liquid.

The present invention aims to provide a porous separation membrane that does not suffer a significant decrease in the protein permeability even after long term use. The porous separation membrane has an asymmetric structure with a dense layer forming one surface layer and with a coarse layer forming the other surface layer, supports a biocompatible polymer, and meet the requirements (1) and (2) given below in surface analysis of a cross section containing the dense layer and the coarse layer performed by TOF-SIMS: (1) the minimum value of normalized intensity of the ion signal attributed to the biocompatible polymer in the coarse layer is 0.15 times or more of the maximum value, and (2) the normalized average intensity of the ion signal attributed to the biocompatible polymer in the dense layer is 2.0 times or more of the normalized average intensity of the ion signal attributed to carboxylic acid in the coarse layer.

The present invention aims to provide a porous separation membrane that does not suffer a significant decrease in the protein permeability even after long term use. The porous separation membrane has an asymmetric structure with a dense layer forming one surface layer and with a coarse layer forming the other surface layer, supports a biocompatible polymer, and meet the requirements (1) and (2) given below in surface analysis of a cross section containing the dense layer and the coarse layer performed by TOF-SIMS: (1) the minimum value of normalized intensity of the ion signal attributed to the biocompatible polymer in the coarse layer is 0.15 times or more of the maximum value, and (2) the normalized average intensity of the ion signal attributed to the biocompatible polymer in the dense layer is 2.0 times or more of the normalized average intensity of the ion signal attributed to carboxylic acid in the coarse layer.

A carbon dioxide (CO.sub.2) capture and utilization system captures CO.sub.2 from flue gas and utilizes the same to enhance algae or cyanobacteria growth. The system generally comprises a CO.sub.2 capture unit and a utilization unit that is in fluid communication with the CO.sub.2 capture unit. The CO.sub.2 capture unit includes a membrane CO.sub.2 absorber that captures CO.sub.2 from incoming flue gas to produce a CO.sub.2-rich solvent. The utilization unit processes the CO.sub.2-rich solvent to produce a product stream that includes CO.sub.2 and NH.sub.3 in a predetermined CO.sub.2:NH.sub.3 ratio. The product stream is delivered to a cultivation subsystem of the utilization of the unit including one or more species of algae or cyanobacteria. A method for capturing and utilizing CO.sub.2 is also provided herein.

A metal coated polymer membrane, a method for the production thereof, an electrofiltration device, or an electrosorption device, and a method of electrofiltration and electrosorption using a metal coated polymer membrane. The polymer membrane is coated with metal using Atomic Layer Deposition (ALD).

A metal coated polymer membrane, a method for the production thereof, an electrofiltration device, or an electrosorption device, and a method of electrofiltration and electrosorption using a metal coated polymer membrane. The polymer membrane is coated with metal using Atomic Layer Deposition (ALD).

The present application relates to an unsupported, permanently hydrophilic filtration membrane, and its method of formation. The membrane comprises a polymeric matrix material and a cross-linked polyoxazoline hydrophilic additive blended throughout said matrix material.

The present application relates to an unsupported, permanently hydrophilic filtration membrane, and its method of formation. The membrane comprises a polymeric matrix material and a cross-linked polyoxazoline hydrophilic additive blended throughout said matrix material.

The present application relates to a multizone, unsupported, microporous, high throughput membrane. The membrane includes a first microporous zone, a second microporous zone, and a third microporous zone, where the third microporous zone is positioned between the first and second microporous zones, with the first, second, and third microporous zones being integral with one another. Further aspects of the present application include a process for making the membrane and a filtration cartridge with the membrane of the present application.