Abstract:
Provided are a concentration method and system for concentrating a raw material solution, and in which a raw material solution containing a solute and a solvent is concentrated to obtain a concentrate of the raw material solution, wherein the solvent contains water and an organic solvent. In the method and system for concentrating a raw material solution, the system includes a combination of: a first concentrating means for removing water in the raw material solution by means of a forward osmosis method; and a second concentrating means for evaporating and removing water and an organic solvent in the raw material solution.
Abstract:
Provided is a non-aqueous lithium-type electrical storage element having both high output and high capacity per volume. The non-aqueous lithium-type electrical storage element relevant to the present invention is a non-aqueous lithium-type electrical storage element having: an electrode body laminated with a positive electrode having a positive electrode active material layer including a positive electrode active material, and a positive electrode current collector, a separator, and a negative electrode having a negative electrode active material layer including a negative electrode active material, and a negative electrode current collector; a non-aqueous electrolytic solution including a lithium ion; and an outer casing.
Abstract:
A forward osmosis membrane comprising a support membrane and an isolative function layer, wherein: the support membrane is equipped with at least a porous support body; the isolative function layer is provided on the porous support body; the porous support body is provided with a compact layer and a macrovoid layer in this order in the depth direction from the surface thereof which contacts the isolative function layer; the thickness of the compact layer is 1.0-9.5 μm; there are 0-0.20 macrovoids/μm in a region A which extends to a depth of 0-5.0 μm from the interface between the isolative function layer and the porous support body; and there are 0.04-0.40 macrovoids/μm in a region B which extends to a depth of 5.0-10.0 μm from the interface between the isolative function layer and the porous support body.
Abstract:
Provided is a membrane distillation module 100 comprising a membrane distillation membrane cartridge 10 and a membrane distillation housing 20, wherein: the membrane cartridge 10 comprises a membrane anchoring part 12 in which porous membranes 11 are anchored by anchoring resin; the housing 20 comprises a housing body 30 and a housing lid 40; the membrane distillation module 100 comprises a support part 60 where the outer surface of the membrane anchoring part 12 is supported by the inner surface of the housing 20 with a seal member 50 interposed therebetween; and a value C in the cross section of the support part 60 is at least 30° C. as represented by the following formula, where dF is the equivalent circular diameter (mm) of the outer circumference of the membrane anchoring part 12, kF is the linear expansion coefficient (1/° C.) of the anchoring resin, dE is the equivalent circular diameter (mm) of the inner circumference of the housing 20; and kE is the linear expansion coefficient (1/° C.) of a portion where the housing 20 contacts the seal member 50.
Abstract:
A membrane distillation module comprising a membrane distillation cartridge and a membrane distillation housing, wherein: the cartridge comprises a anchoring part in which porous membranes are anchored by resin; the housing comprises a housing body and a housing lid; the membrane distillation module comprises a support part where the outer surface of the anchoring part is supported by the inner surface of the housing with a seal member interposed therebetween; and a value C in the cross section of the support part is at least 30° C. as represented by the formula, where dF is the equivalent circular diameter (mm) of the outer circumference of the anchoring part, kF is the linear expansion coefficient (1/° C.) of the resin, dE is the equivalent diameter (mm) of the inner circumference of the housing, and kE is the linear expansion coefficient (1/° C.) of a portion where the housing contacts the seal member.
Abstract:
The purpose of the present invention is to provide: a membrane distillation module with excellent stability of water treatment ability over time as a result of wetting being controlled; and a membrane distillation apparatus comprising the same. Provided is a membrane distillation module that comprises a housing and multiple porous hollow fiber membranes, both ends of which are bonded and fixed to the housing, wherein: the water contact angle of the outer surfaces of the porous hollow fiber membranes is at least 90°; and a hydrophobic polymer adheres to at least some of the areas of the porous hollow fiber membranes that are not bonded and fixed.
Abstract:
This raw-material liquid concentration system is for use in a pharmaceutical product manufacturing process, and employs a membrane-distillation method involving: bringing a raw-material liquid containing a solvent and a solute into contact with cooling water through a membrane-distillation membrane; passing the solvent in the raw-material liquid through the membrane-distillation membrane in the form of vapor; and causing the solvent to move toward the side of the cooling water, wherein the membrane-distillation membrane is a porous membrane that has a water contact angle of at least 90° at the surface thereof, has an average pore diameter of 0.02-0.5 μm, and has a porosity of 60-90%.
Abstract:
Provided is a non-aqueous lithium-type electrical storage element having both high output and high capacity per volume. The non-aqueous lithium-type electrical storage element relevant to the present invention is a non-aqueous lithium-type electrical storage element having: an electrode body laminated with a positive electrode having a positive electrode active material layer including a positive electrode active material, and a positive electrode current collector, a separator, and a negative electrode having a negative electrode active material layer including a negative electrode active material, and a negative electrode current collector; a non-aqueous electrolytic solution including a lithium ion; and an outer casing.