Primary Stormwater Treatment

The HumeGard® system is a pollution control device that is specifically designed to remove gross pollutants and coarse sediments (≥ 150 micron), from stormwater runoff. This system is designed for residential and commercial developments where litter and sediment are the predominant pollutants. It is particularly useful in retrofit applications or drainage systems on flat grades where low head loss requirements are critical.

The system utilises the processes of physical filtration and floatation/sedimentation to separate the litter and coarse sediment from stormwater runoff. It incorporates an upper bypass chamber diverting treatable flows via a floating boom, and a lower treatment chamber for settling and filtering coarse pollutants from the flow. The floating boom and bypass chamber enables the continued capture of floating material, even during peak flows, and the unit also prevents re-suspension and release of trapped materials during subsequent storm events.