Disc Filtration Articles

  • WORKING ON A LOVE/HATE RELATIONSHIP WITH THE SURFACE CHEMISTRY OF MEMBRANE FILTERS

    Water, oils, and solvents sometimes need to be filtered. But when you see filters labeled as hydrophilic, hydrophobic, and now oleophobic; what does all this mean?  Sterlitech currently offers membrane disc and sheet filters in 10 different polymer types and 4 inorganic filters. 2 of the polymer types are subdivided into 4 subgroups based on surface ...


    By Sterlitech Corporation

  • Overview of Rotating Disc Electrode (RDE) Optical Emission Spectroscopy for In-Service Oil Analysis

    Introduction The basis of modern oil analysis is the use of optical emission spectroscopy (OES) to measure the ppm (parts per million) levels of wear metals, contaminants and additives in oil samples. Whatever else an oil lab may measure, a multi-elemental analysis is the core of in-service oil analysis. This paper gives an overview of Rotating Disc Electrode Elemental Spectroscopy and its ...


    By Spectro Scientific

  • Mine backfill

    Mine backfill is defined as the material used to fill the cavities (i.e., stopes) created by underground mining. Backfilling can be a means to dispose of sludge and/ or tailings which may contain hazardous materials and to reduce surface environmental impacts by storing tailings underground. Alternately, backfilling with nonhazardous materials can allow for mining productivity improvements. To ...


    By WesTech Engineering, Inc.

  • PREFILTERS IN ULTRAFILTRATION PROCESSES

    AZUD HELIX AUTOMATIC filters are excellent protecting Ultrafiltration membranes. Their operation is based in the disc filtration technology, which supplies an in-depth filtration. The installation of AZUD HELIX AUTOMATIC filtration equipments as prefilters is one of its commonest applications. The installation of AZUD HELIX AUTOMATIC filtration equipment prior to the cartridge filters permits: ...


    By Sistema Azud, S.A.

  • The hybrid process TiO2/PAC: performance of membrane filtration

    In investigations concerning the photocatalytic degradation by TiO2 usually filter discs with a pore size of 0.22 μm and 0.45 μm are used for the removal of photocatalyst particles in aqueous suspensions. In this study the effective rejection of suspended particles by microfiltration in different types of membrane modules and with different membrane materials was investigated. Furthermore, ...


    By IWA Publishing

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