How It Works

  • The Basic Concepts Behind the BSF, in Images

    Various locations (1994) - Gallery

  • Principles of Design

    Comparison: Traditional Slow Sand Filtration (TSSF) and BioSand Filtration (BSF)

    Dr. David H. Manz, P. Eng., P. Ag. (Nov 2008)

    From a PowerPoint presentation. A thorough comparison of removal rates, vertical scale, media selection, operation, performance, cleaning and maintenance, energy efficiency, chemical usage, filter capacities, and a summary of BSF advantages. Available online

  • Use of the BSF

    Installation
    Commission
    Operation
    Maintenance
    Disinfection
    Hygiene
    Storage
    Decommissioning/restart
    Moving
    Problem solving
    Do's & Don'ts

    Please see our Guidance Manuals page.

  • Construction of Concrete Filter: Manuals

    Please find this manual (7 books) on our Construction Manuals page.

  • The BSF: Removal Applications

    The BSF Removes:
    Pathogens
    Particulate material
    Iron
    Manganese
    Arsenic
    Fluoride

  • Performance Evaluation - Methodology

    Health Improvements, Removal of Pathogens
    BSF Guidance Manual #5: Performance Evaluation of the Concrete BioSand Water Filter
    Available online

  • Other Sand Filter Technologies - Why It's Not the Real BSF

    Info coming soon.