The present invention relates to a phytocomplex or natural concentrate rich in polyphenolic compounds such as hydroxytyrosol and 3,4-DHPA-EDA, derived from the waters from the pressing of olives for oil and/or olive pomace as residues of the olive milling process, for use in the reduction/attenuation of the symptoms and/or side effects associated with/caused by diabetes and/or the pathological conditions associated therewith.

The present invention relates to a phytocomplex or natural concentrate rich in polyphenolic compounds such as hydroxytyrosol and 3,4-DHPA-EDA, derived from the waters from the pressing of olives for oil and/or olive pomace as residues of the olive milling process, for use in the reduction/attenuation of the symptoms and/or side effects associated with/caused by diabetes and/or the pathological conditions associated therewith.

The filter module case includes a casing, a cap, a first layer, and a second layer. The casing has a cylindrical shape. The cap has a cylindrical shape and defines a passage providing communication between the inside and the outside of the casing and receives an end portion of the casing and is bonded to the casing. The first layer is closer to an end and faces an outer peripheral surface of the casing and the inner wall surface of the cap. The second layer is closer to the center and faces the outer peripheral surface of the casing and the inner wall surface of the cap. The casing and the cap have organic solvent resistance. The first layer is formed of a first adhesive with organic solvent resistance. The second layer is formed of a second adhesive that has an affinity for hard-to-adhere materials and has a higher elasticity.

The filter module case includes a casing, a cap, a first layer, and a second layer. The casing has a cylindrical shape. The cap has a cylindrical shape and defines a passage providing communication between the inside and the outside of the casing and receives an end portion of the casing and is bonded to the casing. The first layer is closer to an end and faces an outer peripheral surface of the casing and the inner wall surface of the cap. The second layer is closer to the center and faces the outer peripheral surface of the casing and the inner wall surface of the cap. The casing and the cap have organic solvent resistance. The first layer is formed of a first adhesive with organic solvent resistance. The second layer is formed of a second adhesive that has an affinity for hard-to-adhere materials and has a higher elasticity.

The present disclosure discloses a spacer tube reverse osmosis (STRO) membrane and a preparation method thereof, which relates to the technical field of reverse osmosis membranes. The preparation method of the STRO membrane specifically comprises the following steps: S101: preparation of a zirconia sol; S102: preparation of a casting solution; S103: preparation of a polysulfone ultrafiltration membrane; S104: immersion; and S105: coating. In the preparation method of the present disclosure, an ionic liquid and high-pressure-resistant particles are introduced into an ultrafiltration layer, the ionic liquid is cross-linked with the ultrafiltration layer in the process of interfacial polymerization, and a layer of the ionic liquid is coated on a surface, so that a three-layer high-performance three-dimensional crosslinking system is formed via the ionic liquid. The ionic liquid is prevented from falling off and dispersing in an oil phase solution, and the pressure resistance and hydrophilic performance of the STRO membrane is greatly improved. The STRO membrane is more suitable for using in high-pressure and high-concentration environments. By combining the ionic liquid with the zirconia sol, the STRO membrane of the present disclosure has higher tensile strength and pressure resistance compared with the reverse osmosis membrane prepared by other modified additives. In addition, the flux and desalination rate of the STRO membrane are also improved compared with the conventional reverse osmosis membranes.

A composite that includes graphene and an interfacially-polymerized polyamide, where the composite is in the form of a self-supporting membrane having a graphene side opposite to a polyamide side, or the composite is in the form of a microparticle comprising a graphene core and a polyamide shell, a method of manufacture of the composites by interfacial polymerization and methods of use of the composite are described.

A composite that includes graphene and an interfacially-polymerized polyamide, where the composite is in the form of a self-supporting membrane having a graphene side opposite to a polyamide side, or the composite is in the form of a microparticle comprising a graphene core and a polyamide shell, a method of manufacture of the composites by interfacial polymerization and methods of use of the composite are described.

Provided is a water-treatment membrane including a porous support; and a polyamide active layer including chlorine on a surface thereof, wherein CIE L*a*b* color coordinate values after storing for 30 days or longer at 25° C. to 80° C. satisfy Equation 1 to Equation 3:
91<L*<97  <Equation 1>
−1.5<a*<1.5  <Equation 2>
−1.5<b*<8  <Equation 3> of the present disclosure, a water-treatment module including the same, and a method for manufacturing the same.

Provided is a water-treatment membrane including a porous support; and a polyamide active layer including chlorine on a surface thereof, wherein CIE L*a*b* color coordinate values after storing for 30 days or longer at 25° C. to 80° C. satisfy Equation 1 to Equation 3:
91<L*<97  <Equation 1>
−1.5<a*<1.5  <Equation 2>
−1.5<b*<8  <Equation 3> of the present disclosure, a water-treatment module including the same, and a method for manufacturing the same.

The invention discloses a forward osmosis (FO) membrane containing silica nanoparticles having high permeate water flux and its manufacturing method. The FO membrane containing a plurality of silica nanoparticles comprises a substrate layer made of polysulfone and a polyamide layer disposed on the substrate layer. In the course of manufacturing the polyamide layer on the substrate layer by interfacial polymerization, the plurality of silica nanoparticles with different properties is added into the polyamide layer to obtain the FO membrane containing silica nanoparticles having high permeability and solute selectivity.