Jellyfish Compliance with SEQ MUSIC Modelling Guidelines · MCU15/0122

System operation                                                 Gravitational forces remove coarse sediment (generally




                                                                                                                                        JellyFish® filter
                                                                 >50 microns), particulate-bound pollutants (nutrients,
As a tertiary treatment system, the JellyFish® filter            toxic metals, hydrocarbons), free oil and floatable
is designed to be an “offline” structure, as part of a           trash and debris (that may bypass upstream primary
treatment train. For effective operation, the system             treatment devices). Large, heavy particles fall to the sump
requires a difference in elevation between upstream and          (sedimentation) and low specific gravity pollutants rise to
downstream water levels. Typically, a minimum 455 mm             the surface (floatation) behind the MAW.
of driving head is designed into the system but may
vary from 305 mm to 610 mm depending on specific                 Treatment begins when flow enters the system through
site requirements.                                               the inlet pipe (standard). Below-deck inlet pipes are
                                                                 offered as an option. Influent enters the MAW zone and
The JellyFish® filter uses gravity, flow rotation and            passes through a large opening in the deck to the lower
membrane filtration treatment to remove pollutants               chamber. The large deck opening and change in flow
from stormwater runoff. These functions are depicted in          direction attenuate the influent flow velocity. Buoyant
Figure 3 below.                                                  pollutants remain on the surface in the MAW zone.




Figure 3 – JellyFish® filter functions




      Inlet



                                                                                         Outlet




                        Gravitational            Flow rotation
                     particles settling




                                               Membrane
                                                filtration




                                                                                                                JellyFish® filter   5