What is the Jellyfish Filter?
Jellyfish Filter is a stormwater quality treatment technology featuring high surface area and high flow rate membrane filtration, at low driving head. By incorproating pretreatment with light-weight membrane filtration, Jellyfish Filter removes a high level and a wide variety of stormwater pollutants, including the finest of particles. The high surface area membrane cartridges, combined with up flow hydraulics, frequent backwashing and the cartridge rinse-able and reusable feature, ensures long-lasting superior performance.
The Jellyfish Filter has been verified through the ISO 14034 Environmental Management – Environmental Technology Verification (ETV) program and is the only stormwater filtration device in Canada to achieve this verification.
How Does the Jellyfish Filter Work?
- Stormwater enters the Jellyfish through the inlet pipe or inlet grate, builds driving head, and traps floating pollutants behind the maintenance access wall and below the cartridge deck
- Water is pushed down below the cartridge deck where a separation skirt around the cartridges directs oil, trash and debris outside the filtration zone, allowing sand-sized particles to settle in the sump
- Water is directed to the filtration zone and up through the top of the cartridge into the backwash pool. Once the water has filled the backwash pool, clean water overflows the weir and exits via the outlet pipe
- The membrane filters provide a very large surface area to effectively remove fine sand and silt-sized particles, and a high percentage of particulate-bound pollutants such as nitrogen, phosphorus, metals and hydrocarbons, while ensuring long-lasting treatment
- After every storm peak, the filtered water in the backwash pool flows back through the hi-flo membrane cartridges into the lower chamber. This passive backwash coupled with vibrational pulses and gravity extends cartridge life, keeping the membrane clean for future events
- The draindown cartridge located outside the backwash pool enables water levels to balance
Jellyfish Filter - Performance Testing Results
| Pollutant of Concern |
% Removal |
| Total Trash |
99% |
| Total Suspended Solids (TSS) |
89% |
| Total Phosphorus (TP) |
77% |
| Total Nitrogen (TN) |
51% |
| Total Copper (TCu) |
>80% |
| Total Zinc (TZn) |
>50% |
| Turbidity (NTU) |
<15 |
Sources:
TAPE Field Study – 2020 JF6-6-1 Configuration
TARP II Field Study – 2012 JF 4-2-1 Configuration View Study
MRDC Floatables Testing – 2008 JF6-6-1 Configuration |
Jellyfish Filter - Features and Benefits
| Features |
Benefits |
| 1. High surface area, high flow rate membrane filtration |
1. Long-lasting and effective stormwater treatment |
| 2. Highest design treatment flow rate per cartridge (up to 80 gpm (5 L/s)) |
2. Compact system with a small footprint, lower construction cost |
| 3. Low driving head (typically 18 inches or less (457 mm)) |
3. Design Flexibility, lower construction cost |
| 4. Lightweight cartridges with passive backflush |
4. Easy maintenance and low life-cycle cost |
| 5. 3rd party verified field performance per TARP protocol |
5. Superior pollutant capture with confidence |
Jellyfish Filter Approvals & Verifications
Jellyfish Filter is approved through numerous state and federal verification programs, including:
- Canada ISO 14034 Environmental Management – Environmental Technology Verification (ETV)
- Ontario Ministry of the Environment – New Environmental Technology Evaluation (NETE) – Certification
- New Jersey Corporation for Advanced Technology (NJCAT) – Field Performance Verification per TARP Tier II Protocol
- Washington State Department of Ecology (TAPE –GULD)
- Maryland Department of the Environment (MD DOE)
- Texas Commission on Environmental Quality (TCEQ)
- Virginia Department of Environmental Quality (VA DEQ)
- New York Department of Environmental Conservation (DEC)
- City of Denver
- Los Angeles County
Jellyfish Filter Configurations
Jellyfish Filter can be can be configured in a variety of systems; a manhole, catch basin, vault, fiberglass tank or custom configuration. Typically, 18 inches (457 mm) of driving head is designed into the system. For low drop sites, the designed driving head can be less.
Jellyfish Filter Applications
- Commercial and residential development, infill and redevelopment and stormwater quality retrofit applications
- Highways, airports, seaports and military installations
- Industrial sites
- Pretreatment for Low Impact Development, infiltration and rainwater harvesting, and reuse systems
Jellyfish Filter Maintenance
- Jellyfish Filter cartridges are light weight, easy to use and reusable
- Maintenance of the Jellyfish Filter cartridges is performed by removing, rinsing and reusing the cartridge tentacles
- Vacuum extraction of captured pollutants in the sump is recommended at the same time
- Full cartridge replacement intervals differ by site due to varying pollutant loading and type, and maintenance frequency. Replacement is anticipated every 2-5 years
Jellyfish Filter Owner's Manual