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    Advanced sewage treatment plant

    Degrilleur™ trash barrier

    Trash barrier for sewage treatment plants and pump chambers

    When non dissolvable objects are flushed into the sewer and then into a sewage treatment plant or pump station downstream, it can lead to blockage or worse – possible plant failure.

    To combat this Marsh Industries has developed the ‘Degrilleur’ – a bar screen which prevents any unsuitable materials from entering the system.

    The unit has no moving parts and requires no electrics, is available in two capacities, 2000 and 12,000 litres, and is suitable for domestic, commercial and industrial installations.

    The Degrilleur can also be used as a flow splitting chamber in multi-stream sewage treatment plants or as an upstream trash screen as part of stormwater attenuation systems.

    Configuration and components are shown for illustration purposes only

    Operating principle

    The Marsh Degrilleur, positioned ahead of the system inlet, blocks the debris and forces it to rise to the top of the chamber where it is collected in a retaining trough for disposal.


    1. Inlet (110 or 160mm)
    2. Grill and frame
    3. Perforated retaining trough
    4. Outlet (110 or 160mm)
    5. Manhole cover


    Cylindrical degrilleur
    Model (pop) Dia over flanges +/-50mm Height +/-50mm/-50mm
    MID-1 1950 1283
    Horizontal degrilleur
    Model (pop) Dia over flanges +/-50mm Height +/-50mm Length over flanges+/-50mm
    MID-2 1950 2284 2860
    MID-3 1950 2284 5200

    For precise tank sizes and configurations, please contact Marsh Industries.
    All dimensions in mm.
    Due to production processes, dimensions of finished units are within a tolerance of +/-2.5%.


    Marsh Civils product portfolio and specifications