Judith G Ulan

Judith G Ulan is a prominent inventor based in Richmond, California. She has made significant contributions to the field of nanofiltration, holding three patents that showcase her innovative approaches to solving complex problems in aqueous solutions.

Latest Patents

One of her latest patents focuses on the nanofiltration of concentrated aqueous salt solutions. This process utilizes conventional nanofiltration membrane modules under positive applied pressure to selectively alter the concentration of solutes. It effectively separates monovalent ions, such as sodium chloride, from multivalent ions like sodium sulfate, particularly in high salt aqueous concentrations. This method is particularly beneficial in reducing undesirable ions, such as silica and dichromate, in chloralkali and chlorate brine solutions.

Another notable patent addresses the removal of trace metal and metalloid species from brine. This process is crucial for the production of chlorine and sodium hydroxide through electrolysis in membrane cells. It involves the adsorption of heavy metals, metalloids, and fluoride species on hydroxyapatite, with a specific emphasis on using bone charcoal for effective removal.

Career Highlights

Judith Ulan is currently associated with Chemetics International Company, Ltd., where she continues to advance her research and development efforts. Her work has significantly impacted the field of chemical engineering, particularly in the areas of water treatment and resource recovery.

Collaborations

Throughout her career, Judith has collaborated with esteemed colleagues, including Kenneth R Maycock and Zbigniew Twardowski. These partnerships have fostered innovation and enhanced the development of her patented technologies.

Conclusion

Judith G Ulan's contributions to nanofiltration technologies exemplify her commitment to innovation in chemical engineering. Her patents not only address critical environmental challenges but also pave the way for advancements in industrial applications.