Department Events

Events

  • Apr
    26

    EES Seminar: Yechan Won

    McCormick - Civil and Environmental Engineering

    2:00 PM A230, Technological Institute

    EVENT DETAILS

    Polyelectrolyte Complex Protective Layers: A New Approach to Fouling Control and Membrane Restoration

    Membrane filtration is a process in which a membrane functions as a barrier for separating materials suspended or dissolved in a fluid via sieving and affinity effects. Size based separation of the membrane filtration technologies is energy efficient because it does not require heat induced phase transition as in distillation processes. Moreover, the membrane filters are versatile and have a wide range of applications, including water purification, organics recovery, and sterilization. Nonetheless, all membrane systems suffer from membrane fouling which forms when foulants such as organic substances and microbes in the feed stream adhere to the membrane surface. Fouling layers ultimately hinder optimum membrane operation by decreasing the permeate flux rate and shortening membrane life. To control membrane fouling, polyelectrolyte complex protective layers are developed via ionic crosslinking between two oppositely charged polymers, poly(sodium 4-styrenesulfonate) and poly(4-vinylpyridine), and functionalized with antibacterial agents. The polyelectrolyte complex protective layer serves as a barrier between the foulants and underlying membrane which can be restored through complete dissolution and reapplication of the protective layer. This opens a possibility to a fully restorable membrane that releases fouling layer upon removing the polyelectrolyte complex layer and further improves distributed closed loop water recycling.

    Bio
    Yechan Won joined Professor Gray’s research group in 2015 as a Ph.D. student and is currently involved in the development and modification of polyelectrolyte complex coating for membrane filtration to control membrane fouling in collaboration with researchers in Ken Shull’s group in Material Science and Engineering. He was previously involved in a project funded by Baxter focused on the synthesis and application of TiO2 based composites as antibacterial thin films for the touch screens of medical devices. Yechan is eager to try new things that involve synthesis, characterization, and testing. Yechan was born in Incheon, South Korea and has lived all over the world, most recently Guatemala. Yechan obtained a B.S. in Chemical Engineering from Worcester Polytechnic Institute in 2015.

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    TIME Friday, April 26, 2019 at 2:00 PM - 3:00 PM

    LOCATION A230, Technological Institute    map it

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    CONTACT Tierney Acott    tierney-acott@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering

  • May
    24

    EES Seminar: Patricio Carnelli

    McCormick - Civil and Environmental Engineering

    2:00 PM A230, Technological Institute

    EVENT DETAILS

    TIME Friday, May 24, 2019 at 2:00 PM - 3:00 PM

    LOCATION A230, Technological Institute    map it

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    CONTACT Tierney Acott    tierney-acott@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering

  • May
    29

    SPREE Seminar: Marco Salviato

    McCormick - Civil and Environmental Engineering

    11:00 AM A230, Technological Institute

    EVENT DETAILS

    TIME Wednesday, May 29, 2019 at 11:00 AM - 12:00 PM

    LOCATION A230, Technological Institute    map it

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    CONTACT Tierney Acott    tierney-acott@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering

  • May
    31

    Center for Physical Genomics and Engineering Symposium

    McCormick School of Engineering and Applied Science

    9:00 AM Daniel Hale Williams Auditorium, McGaw Pavilion

    EVENT DETAILSmore info

    TIME Friday, May 31, 2019 at 9:00 AM - 5:30 PM

    LOCATION Daniel Hale Williams Auditorium, McGaw Pavilion    map it

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    CONTACT Ben Keane    b-keane@northwestern.edu EMAIL

    CALENDAR McCormick School of Engineering and Applied Science

  • May
    31

    EES Seminar: Chrissy Cabay

    McCormick - Civil and Environmental Engineering

    2:00 PM A230, Technological Institute

    EVENT DETAILS

    TIME Friday, May 31, 2019 at 2:00 PM - 3:00 PM

    LOCATION A230, Technological Institute    map it

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    CONTACT Tierney Acott    tierney-acott@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering

  • Jun
    5

    SPREE Seminar: Craig Foster

    McCormick - Civil and Environmental Engineering

    11:00 AM A230, Technological Institute

    EVENT DETAILS

    TIME Wednesday, June 5, 2019 at 11:00 AM - 12:00 PM

    LOCATION A230, Technological Institute    map it

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    CONTACT Tierney Acott    tierney-acott@northwestern.edu EMAIL

    CALENDAR McCormick - Civil and Environmental Engineering

  • Jun
    8

    Spring classes end

    University Academic Calendar

    All Day

    EVENT DETAILS

    TIME Saturday, June 8, 2019

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    CONTACT Office of the Registrar    nu-registrar@northwestern.edu EMAIL

    CALENDAR University Academic Calendar