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JellyFish® filter technical manual - Humes

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<strong>JellyFish®</strong> <strong>filter</strong><br />

Technical <strong>manual</strong><br />

Issue 4<br />

Filter


Contents<br />

<strong>JellyFish®</strong> <strong>filter</strong> 1<br />

System components 2<br />

Membrane filtration cartridge 4<br />

System operation 5<br />

Self-cleaning functions 6<br />

System performance 7<br />

Treatment efficiency 7<br />

Inlet and outlet pipes 7<br />

System options 8<br />

Design information 9<br />

Configurations and design capacities 9<br />

Bypass design 10<br />

Dry sump option 11<br />

Submerged (tidal/tailwater) installations 11<br />

Series <strong>JellyFish®</strong> <strong>filter</strong> 11<br />

System installation 12<br />

Inspection and maintenance 12<br />

Replacement parts 12<br />

Appendices 13<br />

Contact information 20


<strong>JellyFish®</strong> <strong>filter</strong><br />

The <strong>JellyFish®</strong> <strong>filter</strong> is a tertiary stormwater treatment system featuring membrane<br />

filtration to provide exceptional pollutant removal at high treatment flow rates with<br />

minimal head loss and low maintenance costs.<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

The <strong>JellyFish®</strong> <strong>filter</strong> uses gravity, flow rotation, and<br />

up-flow membrane filtration to provide tertiary<br />

treatment to stormwater in an underground structure.<br />

Using unique filtration cartridges, each <strong>JellyFish®</strong> <strong>filter</strong><br />

provides a large membrane surface area, resulting in high<br />

flow rates and pollutant removal capacity.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> efficiently captures a high level of<br />

stormwater pollutants, including:<br />

• Total Suspended Solids (TSS), median removal<br />

efficiency of 89%, including particles down to<br />

two microns<br />

• Total Nitrogen (TN), median removal efficiency of 48%<br />

• Turbidity median removal efficiency of 85%<br />

• Total Phosphorous (TP), median removal efficiency<br />

of 67%<br />

• Total Copper (Cu), median removal efficiency of 61%<br />

• Total Zinc (Zn), median removal efficiency of 91%.<br />

Designed as a polishing device for constrained sites, the<br />

<strong>JellyFish®</strong> <strong>filter</strong> is available in a range of sizes to cater for<br />

both at-source and end-of-pipe solutions.<br />

• The system provides tertiary level performance with a<br />

small footprint<br />

The proven performance of the <strong>JellyFish®</strong> <strong>filter</strong> and<br />

high flow rate membranes enables water quality<br />

objectives to be met with a smaller footprint system<br />

than typical bioretention systems.<br />

• It has been independently researched and proven<br />

The <strong>JellyFish®</strong> <strong>filter</strong> has been independently researched<br />

under both laboratory and field conditions in the<br />

United States and Australia. In the United States, it has<br />

received verification under the stringent New Jersey<br />

Corporation for Advanced Technology (NJCAT) protocol.<br />

• It treats higher flow rates than most <strong>filter</strong>s<br />

Each <strong>filter</strong> cartridge has an effective <strong>filter</strong> area of<br />

35.4 m 2 designed to treat 5 litres per second (L/s)<br />

during operation.<br />

• Above-ground land use is maintained<br />

The system is assembled within a fully-trafficable,<br />

precast concrete structure for underground<br />

installations on constrained sites, allowing maximum<br />

use for above-ground activities.<br />

• Maintenance is easy<br />

The <strong>filter</strong> backwashes after peak flows so it can<br />

self-clean several times in each storm event. Manual<br />

backwash is recommended annually. When cartridge<br />

replacement is required (usually every three to five<br />

years), it is a safe and simple process.<br />

• We provide world class treatment solutions<br />

<strong>Humes</strong> has a team of water specialists dedicated<br />

to delivering sustainable solutions, creating<br />

maximum value for your project, accommodating<br />

your site conditions, design requirements and<br />

construction factors.<br />

<strong>JellyFish®</strong> <strong>filter</strong> 1


System components<br />

The <strong>JellyFish®</strong> <strong>filter</strong> is comprised of several structural and<br />

functional components:<br />

• A cylindrical precast concrete structure which is<br />

available in a range of diameters and depths that<br />

serves as a vessel providing structural support<br />

for a 50 year design life and provides storage for<br />

accumulated <strong>filter</strong>ed pollutants.<br />

• A rigid high-strength fibreglass cartridge deck<br />

separates the vessel into a lower chamber and upper<br />

chamber. This houses the <strong>filter</strong> cartridges, provides<br />

a surface and flow path for treated water to the<br />

effluent pipe, and provides containment of oil and<br />

other hydrocarbons below the deck and also provides<br />

a platform for maintenance personnel to safely service<br />

the <strong>filter</strong> cartridges.<br />

• The lower chamber provides storage for pollutant<br />

separation and membrane filtration.<br />

• The upper chamber provides adequate clearance for<br />

inspection and maintenance.<br />

• A rigid high-strength fibreglass Maintenance Access<br />

Wall (MAW) attenuates influent water velocity and<br />

directs flow into the lower chamber through a large<br />

opening in the cartridge deck. In addition, it provides<br />

storage for floatable pollutants. It also serves as an<br />

inspection and maintenance access point.<br />

• <strong>JellyFish®</strong> membrane filtration cartridges are secured<br />

to the deck by the cartridge lids. Each <strong>filter</strong> cartridge<br />

consists of multiple membrane <strong>filter</strong> tentacles, which<br />

treat the stormwater by <strong>filter</strong>ing out fine suspended<br />

particulates (TSS) and particulate-bound pollutants on<br />

the membrane of each tentacle. Filtered water passes<br />

through the membranes, up the centre tube of each<br />

tentacle and exits through the top.<br />

• Filter cartridges are designated as either high-flow or<br />

draindown cartridges, depending on their location in<br />

the cartridge deck. High-flow cartridges placed within<br />

the backwash pool are automatically backwashed after<br />

each storm event.<br />

• Draindown cartridges located outside the backwash<br />

pool facilitate the draindown of the backwash<br />

pool. The design flow rate (2.5 L/s) of a draindown<br />

cartridge is controlled by the lid orifice. The lower<br />

design flow rate of the draindown cartridge ensures<br />

the membranes last for longer periods between<br />

scheduled maintenance.<br />

• Cartridge lids are fastened into the deck to securely<br />

anchor the <strong>filter</strong> cartridges. The lids are removable to<br />

allow <strong>manual</strong> rinsing and replacement of the <strong>filter</strong><br />

cartridges when required. Cartridge lids contain a<br />

flow control orifice that is specifically sized for use<br />

with high-flow and draindown cartridges. Blank lids<br />

have no orifice and are used to cover unoccupied deck<br />

apertures in systems that do not use the full rated flow<br />

capacity of the system.<br />

• A rigid fibreglass backwash pool weir extends<br />

150 mm above the cartridge deck and encloses the<br />

high-flow cartridges. During inflow, <strong>filter</strong>ed water<br />

leaving the high-flow cartridges forms a pool inside<br />

the weir. When the water level in the pool exceeds<br />

the weir height it overflows and spills to the cartridge<br />

deck where it then flows to the outlet pipe. As the<br />

inflow event subsides and pressure decreases, water<br />

in the backwash pool reverses flow direction and<br />

automatically backwashes the high-flow cartridges,<br />

cleaning the membrane surfaces. Water in the lower<br />

chamber (below deck) is displaced through the<br />

draindown cartridges.<br />

This self-cleaning mechanism may occur multiple<br />

times during a single storm event as rainfall/runoff<br />

intensities rise and fall, thereby significantly<br />

extending the service life of the cartridges and the<br />

maintenance interval.<br />

2 <strong>JellyFish®</strong> <strong>filter</strong>


• A separator skirt encloses the filtration cartridge<br />

and defines the filtration zone. The separator skirt<br />

extends the full length of the filtration tentacles and<br />

prevents contamination of the membranes with oil<br />

and floatable debris. The separator skirt also forces<br />

water to enter the filtration zone under low velocities.<br />

The separator skirt is attached to the underside of the<br />

cartridge deck.<br />

• Large diameter access lids are installed at the surface<br />

and are removed to allow access for maintenance<br />

of the system. The upper chamber is designed<br />

with tapered surrounds to match with finished<br />

surface grades.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> and components are depicted in<br />

Figure 1 below.<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

• As an option, the inlet pipe can be located below the<br />

deck for drainage networks with deep invert levels.<br />

In these systems, a deflector plate is installed across<br />

the inlet pipe to induce tangential water flow<br />

through the channel between the chamber wall and<br />

separator skirt.<br />

Figure 1 – <strong>JellyFish®</strong> <strong>filter</strong> components<br />

Maintenance access wall<br />

High-flow cartridges<br />

Inlet<br />

Backwash pool<br />

Outlet<br />

Draindown cartridge<br />

Cartridge deck<br />

Separator skirt<br />

<strong>JellyFish®</strong> <strong>filter</strong> 3


Membrane filtration cartridge<br />

Figure 2 – <strong>JellyFish®</strong> membrane filtration cartridge<br />

The <strong>JellyFish®</strong> <strong>filter</strong> utilises multiple lightweight<br />

membrane filtration cartridges. Each cartridge consists of<br />

multiple removable <strong>filter</strong> elements (“filtration tentacles”)<br />

attached to a cartridge head plate. Each filtration<br />

tentacle consists of a central perforated tube surrounded<br />

by a specialised membrane. A removable oil-resistant<br />

polymeric gasket provides a watertight seal between the<br />

cartridge and the deck. A <strong>JellyFish®</strong> membrane filtration<br />

cartridge is depicted in Figure 2.<br />

Tentacles<br />

Head plate<br />

Attachment<br />

nuts<br />

Lifting eyes<br />

Gasket<br />

The cartridge length is 1,372 mm. The dry weight of<br />

a new cartridge is less than 9 kg, and the wet weight<br />

of a used cartridge is less than 23 kg. No heavy lifting<br />

equipment is required during exchange.<br />

The filtration tentacle membranes provide a large surface<br />

area, resulting in high flow and suspended sediment<br />

removal capacities. A typical <strong>JellyFish®</strong> cartridge with<br />

11 filtration tentacles has 35.4 m 2 of membrane<br />

surface area. Hydraulic testing on clean <strong>filter</strong> cartridges<br />

demonstrated a flow rate of 11.3 L/s at 455 mm of<br />

driving head.<br />

Extensive independent field testing, including testing<br />

at an urban site with high intensity rainfall and runoff,<br />

has demonstrated consistently high pollutant removal<br />

performance with a conservative design flow rate of<br />

5 L/s for the high-flow cartridges and 2.5 L/s for the<br />

draindown cartridges.<br />

These values translate to a conservative design<br />

membrane filtration flux rate (flow per unit surface area)<br />

of 0.14 L/s/m 2 for the high-flow cartridge and 0.07 L/s/m 2<br />

for the draindown cartridge.<br />

In addition, the filtration membrane has been treated<br />

to allow biofilm to grow but not clog the pores of the<br />

membrane. The flow rating of a particular <strong>JellyFish®</strong> <strong>filter</strong><br />

cartridge is based on the membrane filtration surface<br />

area of the cartridge and data collected from both<br />

laboratory testing and field testing. The cartridge deck<br />

contains apertures for each <strong>filter</strong> cartridge.<br />

4 <strong>JellyFish®</strong> <strong>filter</strong>


System operation<br />

As a tertiary treatment system, the <strong>JellyFish®</strong> <strong>filter</strong><br />

is designed to be an “offline” structure, as part of a<br />

treatment train. For effective operation, the system<br />

requires a difference in elevation between upstream and<br />

downstream water levels. Typically, a minimum 455 mm<br />

of driving head is designed into the system but may<br />

vary from 305 mm to 610 mm depending on specific<br />

site requirements.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> uses gravity, flow rotation and<br />

membrane filtration treatment to remove pollutants<br />

from stormwater runoff. These functions are depicted in<br />

Figure 3 below.<br />

Gravitational forces remove coarse sediment (generally<br />

>50 microns), particulate-bound pollutants (nutrients,<br />

toxic metals, hydrocarbons), free oil and floatable<br />

trash and debris (that may bypass upstream primary<br />

treatment devices). Large, heavy particles fall to the sump<br />

(sedimentation) and low specific gravity pollutants rise to<br />

the surface (floatation) behind the MAW.<br />

Treatment begins when flow enters the system through<br />

the inlet pipe (standard). Below-deck inlet pipes are<br />

offered as an option. Influent enters the MAW zone and<br />

passes through a large opening in the deck to the lower<br />

chamber. The large deck opening and change in flow<br />

direction attenuate the influent flow velocity. Buoyant<br />

pollutants remain on the surface in the MAW zone.<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

Figure 3 – <strong>JellyFish®</strong> <strong>filter</strong> functions<br />

Inlet<br />

Outlet<br />

Gravitational<br />

particles settling<br />

Flow rotation<br />

Membrane<br />

filtration<br />

<strong>JellyFish®</strong> <strong>filter</strong> 5


Flow into the lower chamber must then pass tangentially<br />

around the separator skirt protecting the cartridges<br />

and increasing the flowpath length. Coarse sediment<br />

settles out of the MAW zone into the sump. As water<br />

flows tangentially around the separator skirt in the<br />

lower chamber, the large opening in the bottom of the<br />

separator skirt and upward change in direction further<br />

reduces flow velocity and enhances particle separation.<br />

As a result, sediment settles in the sump.<br />

Flows pass through the cartridge in the filtration zone.<br />

Each <strong>filter</strong> cartridge consists of multiple tentacles.<br />

Hydraulic pressure across the entire membrane surface<br />

area causes water to penetrate the filtration tentacles.<br />

Water enters the membrane pores radially and deposits<br />

fine particulates on the exterior membrane surface.<br />

Filtered water flows into the centre drain tube of each<br />

tentacle, the water then flows upward and out the top.<br />

Water exiting the top of the tentacles combines under<br />

the lid, where the combined flow exits the cartridge<br />

through the orifice with a pulsating fountain effect<br />

into the backwash pool. When the water level in the<br />

backwash pool exceeds the weir height it overflows to<br />

the outlet pipe.<br />

Outside the backwash pool, the draindown cartridge<br />

provides treatment at a reduced flow rate (2.5 L/s) and<br />

allows the treated water captured in the backwash pool<br />

to return through the cartridges and balance water<br />

pressure as the storm event ends.<br />

As particles build up on the external membrane surface,<br />

the pores progressively become smaller. This process,<br />

referred to as “<strong>filter</strong> ripening”, significantly improves<br />

the removal efficiency relative to a brand new or clean<br />

membrane. Filter ripening accounts for the ability of<br />

the <strong>JellyFish®</strong> <strong>filter</strong> to remove particles finer than the<br />

nominal pore size. An animation of the <strong>JellyFish®</strong> <strong>filter</strong><br />

operation and maintenance is available at humes.com.au.<br />

Self-cleaning functions<br />

The <strong>JellyFish®</strong> <strong>filter</strong> utilises several self-cleaning<br />

processes to remove accumulated sediment from the<br />

external surfaces of the filtration membranes, including<br />

automatic backwash of the high-flow cartridges,<br />

vibrational pulses, and gravity. These processes have<br />

been confirmed by more than 12 months of full<br />

scale prototype testing. Combined, these processes<br />

significantly extend the cartridge life, maintenance<br />

interval and reduce life-cycle costs.<br />

Automatic backwash occurs with the high-flow<br />

cartridges at the end of each runoff event. This can occur<br />

multiple times during a single storm event as intensity<br />

and driving head varies. As the inflow subsides and<br />

driving head decreases, water in the backwash pool<br />

reverses flow direction and automatically backwashes<br />

the high-flow cartridges, removing sediment from the<br />

membrane surfaces. Water in the lower chamber (below<br />

deck) is displaced through the draindown cartridges.<br />

Vibrational pulses occur as a result of complex and<br />

variable pressure and flow direction conditions that<br />

arise in the deck during operation. During forward flow<br />

a stream of <strong>filter</strong>ed water exits the top of each filtration<br />

cartridge and encounters resistance from the turbulent<br />

pool of water in the backwash pool. Water is forced<br />

through the cartridge lid orifice into the backwash pool<br />

with a pulsating fountain effect. The resulting pulses<br />

transmit vibrations through the deck to the membranes,<br />

thereby dislodging accumulated sediment. The effect<br />

is pronounced at higher flow rates, and influences<br />

all cartridges.<br />

Accumulated sediment on the membranes will settle<br />

under gravity both during inflow events and inter-event<br />

dry periods. As fine particles form into larger masses<br />

on the membrane surface, adhesion to the membrane<br />

surface lessens, and sediment sheds away from the<br />

membrane. Chemical processes and biofilm effects also<br />

play a role.<br />

6 <strong>JellyFish®</strong> <strong>filter</strong>


System performance<br />

The <strong>JellyFish®</strong> <strong>filter</strong> has been designed to provide tertiary<br />

level treatment and may be combined with a Gross<br />

Pollutant Trap (GPT) as part of a treatment train to<br />

optimise overall performance.<br />

Treatment efficiency<br />

Inlet and outlet pipes<br />

An above-deck inlet pipe configuration is standard<br />

for the <strong>JellyFish®</strong> <strong>filter</strong> and an optional below-deck<br />

inlet configuration is available on request. Specific site<br />

constraints generally determine the configuration that<br />

is most favourable. In both configurations, the invert<br />

level of the outlet pipe is identical to the cartridge<br />

deck elevation.<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

Extensive research of the <strong>JellyFish®</strong> <strong>filter</strong> has proven<br />

its performance under Australian laboratory, US field<br />

conditions and Australian field conditions. Field testing in<br />

the United States has received independent verification<br />

under the stringent New Jersey Corporation for Advanced<br />

Technology (NJCAT) protocol. The results are summarised<br />

in Table 1 below<br />

Table 1 – <strong>JellyFish®</strong> <strong>filter</strong> performance summary<br />

Pollutant<br />

Median reduction<br />

TSS 89%<br />

TP 67%<br />

TN 48%<br />

Cu 61%<br />

Zn 91%<br />

Total oil and grease 62%<br />

Reference: University of Florida (2011) and West Ipswich (2014 ).<br />

<strong>JellyFish®</strong> <strong>filter</strong> 7


System options<br />

The <strong>JellyFish®</strong> <strong>filter</strong> can be customised to suit your project<br />

requirements. As each treatment train is unique and<br />

units are designed to match surface levels, please contact<br />

<strong>Humes</strong> for assistance, however, Table 2 below can be<br />

used as a guide.<br />

Table 2 – <strong>JellyFish®</strong> <strong>filter</strong> model range and details<br />

<strong>JellyFish®</strong><br />

model<br />

Number of highflow<br />

cartridges<br />

JF1200-1-1 1<br />

Number of<br />

draindown<br />

cartridges<br />

Inlet pipe<br />

diameters (mm)<br />

Treatment flow<br />

(L/s)<br />

JF1200-2-1 2 12.5<br />

JF1800-3-1 3 17.5<br />

1<br />

JF1800-4-1 4 22.5<br />

150 - 225<br />

JF1800-5-1 5 27.5<br />

JF1800-6-1 6 32.5<br />

JF2400-6-2 6<br />

JF2400-7-2 7 40.0<br />

JF2400-8-2 8<br />

JF2400-9-2 9 50.0<br />

JF2400-10-2 10 55.0<br />

JF3000-11-3 11<br />

62.5<br />

3<br />

JF3000-12-3 12 225 - 300<br />

67.5<br />

JF3000-12-4 12<br />

JF3000-13-4 13 75.0<br />

JF3000-14-4 14 80.0<br />

JF3000-15-4 15 85.0<br />

4<br />

JF3000-16-4 16<br />

90.0<br />

JF3000-17-4 17 95.0<br />

JF3000-18-4 18 100.0<br />

JF3000-19-4 19 105.0<br />

JF3600-20-5 20<br />

JF3600-21-5 21 117.5<br />

300 - 375<br />

JF3600-22-5 22 122.5<br />

2<br />

7.5<br />

35.0<br />

45.0<br />

70.0<br />

112.5<br />

JF3600-23-5 23 127.5<br />

5<br />

JF3600-24-5 24 132.5<br />

JF3600-25-5 25 137.5<br />

JF3600-26-5 26 142.5<br />

JF3600-27-5 27 147.5<br />

Nominal<br />

structure<br />

diameter (mm)<br />

1,200<br />

1,800<br />

2,400<br />

3,000<br />

3,600<br />

Note: Designers should allow for upstream and downstream bypass pits and a bypass pipe link in a triangular configuration.<br />

8 <strong>JellyFish®</strong> <strong>filter</strong>


Design information<br />

The <strong>JellyFish®</strong> <strong>filter</strong> has many flexible design features to<br />

accommodate a wide range of specific site requirements<br />

and constraints. Please contact <strong>Humes</strong> for assistance.<br />

Configurations and design capacities<br />

For the standard above-deck inlet pipe configuration, the<br />

invert elevation of the inlet pipe is typically set 150 mm<br />

higher than the invert elevation of the outlet pipe. This<br />

generally ensures that the inlet pipe will drain completely<br />

after each rainfall/runoff event, while providing sufficient<br />

volume within the MAW zone for surface accumulation<br />

of floatables below the inlet pipe. The elevation of the<br />

inlet pipe can be varied as required.<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

Design flow capacities and pollutant capacities for<br />

standard <strong>JellyFish®</strong> <strong>filter</strong> configurations are shown in<br />

Table 2 on the previous page.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> standard model numbers provide<br />

information about the manhole inside diameter and<br />

cartridge counts for high-flow and draindown cartridges.<br />

For example, the <strong>JellyFish®</strong> <strong>filter</strong> model number<br />

JF1800-5-1 is an 1,800 mm diameter structure with five<br />

high-flow cartridges and one draindown cartridge.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> can accommodate a range of angles<br />

between the inlet and outlet pipes. Standard outlet pipe<br />

locations are within a 180° span about the circumference<br />

of the structure (refer to Figure 4 below). The separation<br />

angle relationship of the inlet pipe to the outlet pipe can<br />

vary from 90 to 270 degrees to provide maximum design<br />

flexibility. Contact <strong>Humes</strong> Water Solutions for assistance<br />

with angles outside this range. The <strong>JellyFish®</strong> <strong>filter</strong> can be<br />

installed at a range of depths of cover.<br />

With systems using an external bypass from an upstream<br />

diversion structure, the driving head is calculated as the<br />

difference in elevation between the top of the diversion<br />

structure weir and the invert of the <strong>JellyFish®</strong> <strong>filter</strong> outlet<br />

pipe. A minimum of 455 mm is required to drive the flow<br />

through the <strong>JellyFish®</strong> <strong>filter</strong> at the rates shown in Table 2.<br />

Figure 4 – Typical <strong>JellyFish®</strong> <strong>filter</strong> outlet locations<br />

Inlet<br />

Outlet<br />

Recommended design flows of 5 L/s for high flow<br />

cartridges and 2.5 L/s for draindown cartridges are to<br />

ensure longevity of the <strong>filter</strong>.<br />

Submerged or backwater conditions may be<br />

accommodated in some circumstances and assistance<br />

from <strong>Humes</strong> engineers is recommended.<br />

<strong>JellyFish®</strong> <strong>filter</strong> 9


Bypass design<br />

The <strong>JellyFish®</strong> <strong>filter</strong> should be designed in an offline<br />

configuration for most catchments. All stormwater <strong>filter</strong><br />

systems will perform for a longer duration between<br />

required maintenance services when designed and<br />

applied in offline configurations. A standard offline<br />

configuration has an external bypass that uses an<br />

upstream diversion structure. The elevation difference<br />

between the top of the diversion structure and the<br />

<strong>JellyFish®</strong> <strong>filter</strong> outlet pipe invert should be a minimum<br />

of 455 mm. Excess flow that overflows the diversion,<br />

bypasses the <strong>JellyFish®</strong> <strong>filter</strong>.<br />

For smaller sites an online configuration might be more<br />

suitable. In these cases, an optional internal bypass<br />

pressure relief pipe(s) can be placed in one or multiple<br />

cartridge receptacles within the <strong>JellyFish®</strong> <strong>filter</strong>.<br />

The pressure relief pipe height and diameter can be<br />

varied to accommodate the design peak flow rate and<br />

system driving head requirements. For these systems, the<br />

driving head is calculated as the difference in elevation<br />

between the top of the pressure relief pipe and the invert<br />

of the outlet pipe.<br />

When the internal bypass option is utilised, peak flow<br />

rates receive membrane filtration treatment up to the<br />

filtration design flow rate, with the balance of the peak<br />

flow receiving primary treatment only. In these cases,<br />

increased sump depth may be required to increase<br />

sediment storage capacity and to minimise re-suspension<br />

of previously captured sediment at peak flow rates.<br />

It is also possible to configure this arrangement using<br />

a single diversion structure. Contact <strong>Humes</strong> for design<br />

assistance.<br />

Figure 5 – <strong>JellyFish®</strong> <strong>filter</strong> offline arrangement without diversion weir<br />

Diversion chamber inlet<br />

Low flow<br />

<strong>JellyFish®</strong> unit outlet I.L.<br />

is 455 mm lower than<br />

I.L. of high flow bypass<br />

inlet<br />

Low flow<br />

High flow bypass<br />

Bypass inlet I.L. is 455 mm<br />

higher than <strong>JellyFish®</strong><br />

unit outlet<br />

Diversion chamber<br />

<strong>JellyFish®</strong> unit<br />

Collection chamber<br />

Figure 6 – <strong>JellyFish®</strong> <strong>filter</strong> offline arrangement with diversion weir<br />

Diversion chamber inlet<br />

<strong>JellyFish®</strong> unit outlet I.L.<br />

is 455 mm lower than<br />

top of weir wall<br />

Low flow<br />

Low flow<br />

High flow bypass<br />

Top of weir is 455 mm<br />

higher than I.L. of<br />

<strong>JellyFish®</strong> unit outlet<br />

Diversion chamber<br />

<strong>JellyFish®</strong> unit<br />

Collection chamber<br />

10 <strong>JellyFish®</strong> <strong>filter</strong>


Dry sump option<br />

The <strong>JellyFish®</strong> <strong>filter</strong> can be supplied with a dry sump<br />

option by way of <strong>filter</strong>ing the water collected in the sump<br />

during a rainfall event to an offline soak well.<br />

The captured water is <strong>filter</strong>ed with a horizontally<br />

positioned <strong>filter</strong> “tentacle” that is covered by a stainless<br />

steel shroud for protection at the sump invert.<br />

The release of <strong>filter</strong>ed water is controlled by using an<br />

Figure 7 – <strong>JellyFish®</strong> <strong>filter</strong> with dry sump option<br />

Concrete cover<br />

Upper converter<br />

surround ring<br />

Lower converter<br />

surround ring<br />

Maintenance access wall<br />

Inlet pipe<br />

Manholes<br />

Treatment<br />

chamber<br />

Outlet pipe<br />

Drainage channel<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

orifice plate at the exit of the sump, which is sized<br />

Separator skirt<br />

to match the required hydraulic conductivity of the<br />

receiving media.<br />

Filter cartridges<br />

Base unit<br />

Submerged (tidal/tailwater) installations<br />

The <strong>JellyFish®</strong> <strong>filter</strong> is designed to function optimally<br />

under free-surface flow conditions. For systems that<br />

may experience submerged or backwater conditions due<br />

to tailwater or tidal effects, driving head calculations<br />

must account for water elevation during the backwater<br />

condition. The <strong>JellyFish®</strong> <strong>filter</strong> treatment functions<br />

Perforated shroud<br />

Filter medium<br />

One-way valve<br />

Stop valve<br />

uPVC pipe<br />

will continue to operate despite backwater conditions.<br />

A customised design will be required to ensure litter<br />

capture and backwash. Contact <strong>Humes</strong> for assistance.<br />

Series <strong>JellyFish®</strong> <strong>filter</strong><br />

For sites with water quality treatment flow rates that<br />

exceed the design flow rate of the largest standard<br />

<strong>JellyFish®</strong> <strong>filter</strong> model, custom systems can be<br />

designed that hydraulically connect multiple <strong>JellyFish®</strong><br />

<strong>filter</strong>s in series. For any design questions or custom<br />

modifications, contact <strong>Humes</strong> for assistance.<br />

<strong>JellyFish®</strong> <strong>filter</strong> 11


System installation<br />

The <strong>JellyFish®</strong> <strong>filter</strong> can be installed by a civil or plumbing<br />

contractor in much the same way as a manhole or other<br />

stormwater drainage structures. It is supplied on-site in<br />

separate, easily identifiable components. The upstream<br />

bypass pit and downstream junction pit are supplied<br />

separately.<br />

The <strong>JellyFish®</strong> <strong>filter</strong> is lowered into place by a crane<br />

or excavator, the components interlock and a tapered<br />

surround can be supplied and rotated to match a surface<br />

grade (if the system is located in road pavement). The<br />

system arrives to the site with the internal parts fully<br />

assembled.<br />

Inspection and maintenance<br />

For inspection and maintenance information, please refer<br />

to the <strong>JellyFish®</strong> <strong>filter</strong> owner’s <strong>manual</strong>.<br />

An animation of the <strong>JellyFish®</strong> <strong>filter</strong> operation and<br />

maintenance is available at humes.com.au.<br />

Replacement parts<br />

Replacement parts for the <strong>JellyFish®</strong> <strong>filter</strong> can be<br />

ordered by contacting <strong>Humes</strong> at ph 1300 361 601 or<br />

info@humes.com.au.<br />

12 <strong>JellyFish®</strong> <strong>filter</strong>


Appendices<br />

<strong>JellyFish®</strong> <strong>filter</strong> standard drawings<br />

<strong>JellyFish®</strong> <strong>filter</strong> inspection and maintenance log<br />

<strong>JellyFish®</strong> <strong>filter</strong><br />

<strong>JellyFish®</strong> <strong>filter</strong> 13


Holcim (Australia) Pty Ltd<br />

TECHNICAL SERVICES<br />

BRISBANE, QUEENSLAND


Holcim (Australia) Pty Ltd<br />

TECHNICAL SERVICES<br />

BRISBANE, QUEENSLAND


Holcim (Australia) Pty Ltd<br />

TECHNICAL SERVICES<br />

BRISBANE, QUEENSLAND


Holcim (Australia) Pty Ltd<br />

TECHNICAL SERVICES<br />

BRISBANE, QUEENSLAND


Holcim (Australia) Pty Ltd<br />

TECHNICAL SERVICES<br />

BRISBANE, QUEENSLAND


<strong>Humes</strong><br />

Holcim (Australia) Pty Ltd<br />

ABN 87 099 732 297<br />

18 Little Cribb st<br />

Milton QLD 4064<br />

Australia<br />

<strong>JellyFish®</strong> <strong>filter</strong> inspection and maintenance log<br />

Phone (07) 3364 2800<br />

Fax (07) 3364 2835<br />

www.humes.com.au<br />

Owner:<br />

Location:<br />

GPS coordinates:<br />

<strong>JellyFish®</strong> <strong>filter</strong> model number:<br />

Land use: Commercial: Industrial: Service station:<br />

Road/highway:<br />

Mine site:<br />

Residential:<br />

Other:<br />

Date:<br />

Time:<br />

Inspector<br />

Maintenance contractor<br />

Visible oil present (Y/N)<br />

Oil quantity removed (Y/N)<br />

Floatable debris present (Y/N)<br />

Floatable debris removed (Y/N)<br />

Water depth in backwash pool<br />

Draindown cartridges backflushed (Y/N)<br />

Draindown cartridges externally rinsed<br />

and re-commissioned (Y/N)<br />

New tentacles put on draindown<br />

cartridges (Y/N)<br />

High-flow cartridges backflushed (Y/N)<br />

High-flow cartridges externally rinsed<br />

and re-commissioned (Y/N)<br />

New tentacles put on high-flow<br />

cartridges (Y/N)<br />

Sediment depth<br />

Sediment removed (Y/N)<br />

Cartridge lids intact (Y/N)<br />

Other comments:<br />

(Deck condition, blockages of upstream/<br />

downstream junctions, skirts, etc..)


Contact information<br />

National sales 1300 361 601<br />

humes.com.au<br />

info@humes.com.au<br />

Head Office<br />

New South Wales<br />

Tasmania<br />

18 Little Cribb St<br />

Milton 4064 QLD<br />

Ph: (07) 3364 2800<br />

Fax: (07) 3364 2963<br />

Queensland<br />

Ipswich/Brisbane<br />

Ph: (07) 3814 9000<br />

Fax: (07) 3814 9014<br />

Rockhampton<br />

Ph: (07) 4924 7900<br />

Fax: (07) 4924 7901<br />

Townsville<br />

Ph: (07) 4758 6000<br />

Fax: (07) 4758 6001<br />

Grafton<br />

Ph: (02) 6644 7666<br />

Fax: (02) 6644 7313<br />

Newcastle<br />

Ph: (02) 4032 6800<br />

Fax: (02) 4032 6822<br />

Sydney<br />

Ph: (02) 9832 5555<br />

Fax: (02) 9625 5200<br />

Tamworth<br />

Ph: (02) 6763 7300<br />

Fax: (02) 6763 7301<br />

Victoria<br />

Echuca<br />

Ph: (03) 5480 2371<br />

Fax: (03) 5482 3090<br />

Melbourne<br />

Ph: (03) 9360 3888<br />

Fax: (03) 9360 3887<br />

Launceston<br />

Ph: (03) 6335 6300<br />

Fax: (03) 6335 6330<br />

South Australia<br />

Adelaide<br />

Ph: (08) 8168 4544<br />

Fax: (08) 8168 4549<br />

Western Australia<br />

Gnangara<br />

Ph: (08) 9302 8000<br />

Fax: (08) 9309 1625<br />

Perth<br />

Ph: (08) 9351 6999<br />

Fax: (08) 9351 6977<br />

Northern Territory<br />

Darwin<br />

Ph: (08) 8984 1600<br />

Fax: (08) 8984 1614


National sales 1300 361 601<br />

humes.com.au<br />

info@humes.com.au<br />

A Division of Holcim Australia<br />

This brochure supersedes all previous literature on this subject. As the specifications and details contained in this publication may change please<br />

check with <strong>Humes</strong> Customer Service for confirmation of current issue. This document is provided for information only. Users are advised to<br />

make their own determination as to the suitability of this information or any <strong>Humes</strong> product for their own specific circumstances. We accept<br />

no responsibility for any loss or damage resulting from any person acting on this information. <strong>Humes</strong> is a registered business name of Holcim<br />

(Australia) Pty Ltd. The JellyFish <strong>filter</strong> is manufactured, marketed, and sold by <strong>Humes</strong> under licence from Imbrium Systems Inc, Canada. JellyFish<br />

is a registered trademark of Imbrium Systems Inc, Canada and is used in Australia under license. <strong>Humes</strong> is a registered trademark of Holcim<br />

Australia Pty Limited. JellyFish is registered under Australian Patent No. 2008286748, US Patent Application No. 11/839,303 and 12/014,888 and<br />

International Publication No. WO 2009/023832 A1.<br />

© February 2015 Holcim (Australia) Pty Ltd ABN 87 099 732 297. All rights reserved. This guide or any part of it may not be reproduced without<br />

prior written consent of Holcim.

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