Electrically enhanced membrane filtration of waste water

Hanna Huotari, Gun Trägårdh, Marianne Nyström

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    The effect of a constant DC electric field in cross-flow membrane filtration of industrial wastewaters was studied.The best results were achieved when filtering a sample with highly charged particles or colloids.In that case the limiting flow could be increased many-fold.The conductivity of the samples studied was over 500 µ-S/cm.At such high conductivities, electrochemical gas formation occurred on the electrodes.The flux enhancement decreased significantly when the carbon fibre - carbon composite membrane worked as an electrode and the gas was produced on the membrane.The problem did not exist when a non-conductive ceramic membrane was used and an electric field was applied across the membrane.However, the high conductivity caused high-energy consumption, which is a problem with the electrofiltration of real wastewater.
    Original languageEnglish
    Title of host publicationProceedings of World Filtration Congress 8
    Pages1197-1200
    Volume2
    Publication statusPublished - 2000
    MoE publication typeA4 Article in a conference publication
    Event8th, World Filtration Congress, WFC 8 - Brighton, United Kingdom
    Duration: 3 Apr 20007 Apr 2000

    Conference

    Conference8th, World Filtration Congress, WFC 8
    CountryUnited Kingdom
    CityBrighton
    Period3/04/007/04/00

    Keywords

    • waste water
    • filtration
    • membranes
    • membrane filtration
    • electric field
    • colloids
    • electrodes
    • electrofiltration
    • electrophoresis
    • fouling
    • ceramic membranes

    Fingerprint Dive into the research topics of 'Electrically enhanced membrane filtration of waste water'. Together they form a unique fingerprint.

  • Cite this

    Huotari, H., Trägårdh, G., & Nyström, M. (2000). Electrically enhanced membrane filtration of waste water. In Proceedings of World Filtration Congress 8 (Vol. 2, pp. 1197-1200)