General Electric Company

Bl Technologies, Inc.

Yanrong Zhu

Su Lu

Wei Zhang

Wenqing Peng

Bing Zhang

Liping Zheng

Hui Lei

Liming Yu

Sijing Wang

Zhida Pan

Liangliang Qiang

Mingna Xiong

Gaorong He

A membrane filtration process includes pretreating an influent solution to remove suspended solids, to produce a pretreated solution. pH of the pretreated solution is adjusted to at least 8.3 or lower by injecting COinto the pretreated solution, to produce a conditioned solution. Injecting COalso serves to supplement bicarbonate in the conditioned solution. The conditioned solution is flowed through a membrane filtration unit, to produce a permeate solution and a retentate solution. The membrane filtration unit comprises reverse osmosis membranes or nanofiltration membranes, or both. The retentate solution is then treated to cause precipitation, to produce a supernatant solution and a reject solution. At least a portion of the supernatant solution is recirculated by combining it with the influent solution prior to the step of pretreating.

Membrane filtration process with high water recovery

The invention is a device comprising a substrate and a material provided on at least a portion of the substrate and having an exposed surface. The exposed surface of the material is non bio-adhesive. The invention further includes a non bio-adhesive material composition and a method of making a device having the same non bio-adhesive surface. The invention further provides a device having a coating of a hydrophobic material. In particular, the hydrophobic material coated portion of the device is resistant to bio-adhesion.

Non bio-adhesive polymer coating composition, articles and devices thereof

A water soluble ROMP catalyst, which has high catalytic efficiency for ring opening metathesis is use in the preparation of polymeric blends for use in monolithic columns. In one embodiments a method for making a polymeric blend is discolosed comprising reaction of a water-soluble ROMP catalyst with a norbornene-substituted cycloolefin polymer or a polynorbornene polymer precursor, and wherein the contacting occurs in an aqueous or polar solvent in the presence of a solid support. In another embodiment a monolithic bed is disclosed comprising the water-soluble ROMP catalyst immobilized on a surface of a solid support. Also disclosed is a monolithic bed comprising: a polymer blend, the polymer blend produced from contacting a water soluble ROMP catalyst with a norbornene-substituted cycloolefin polymer or a polynorbornene polymer precursor; and wherein the contacting occurs in an aqueous or polar solvent in the presence of a solid support.

Aqueous ROMP-based monolith materials and methods for making

Growing community of inventors

Shanghai, China

Yanrong Zhu