Membrane-based water recovery in coffee manufacture

Christian M. Wisniewski, Mariano J. Savelski, C. Stewart Slater

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Scopus citations

    Abstract

    This paper aims to investigate the implementation of membrane processes to recover potable water for reuse from wastewater from a soluble coffee manufacturing plant. An initial screening study was conducted to evaluate flux performance and contaminant rejection for a range of membranes, including microfiltration, ultrafiltration, nanofiltration, and reverse osmosis membranes. Major contaminants considered were chemical oxygen demand (COD), turbidity, and conductivity. All membranes provided similar flux values after 60 minutes of processing. The nanofiltration and reverse osmosis membranes provided excellent contaminant rejection at over 98% for COD and turbidity for both membranes. Conductivity rejection was 51.9% and 98.5% for nanofiltration and reverse osmosis membranes, respectively. Preliminary results of dynamic filtration, by vibration, show increases of steady state flux by a factor of 4 and 1.7 for nanofiltration and reverse osmosis membranes respectively.

    Original languageEnglish (US)
    Title of host publicationWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017
    PublisherWater Environment Federation
    Pages3433-3438
    Number of pages6
    ISBN (Print)9781510863682
    StatePublished - 2017
    EventWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017 - Chicago, United States
    Duration: Sep 30 2017Oct 4 2017

    Publication series

    NameWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017
    Volume5

    Other

    OtherWater Environment Federation Technical Exhibition and Conference 2017, WEFTEC 2017
    Country/TerritoryUnited States
    CityChicago
    Period9/30/1710/4/17

    All Science Journal Classification (ASJC) codes

    • Pollution
    • Ecological Modeling
    • Environmental Chemistry
    • Waste Management and Disposal
    • Water Science and Technology

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