JellyFish® filter Technical manual
Transcription
JellyFish® filter Technical manual
JellyFish® filter Technical manual Issue 5 Filter Contents JellyFish® filter 1 System components 2 Membrane filtration cartridge 4 System operation 5 Self-cleaning functions System performance 6 7 Treatment efficiency 7 Inlet and outlet pipes 7 System options 8 Design information 9 Configurations and design capacities 9 Bypass design 10 Dry sump option 11 Submerged (tidal/tailwater) installations 11 Series JellyFish® filter 11 System installation 12 Inspection and maintenance 12 Replacement parts 12 Appendices 13 Precast solutions 20 Contact information 21 JellyFish® filter JellyFish® filter The JellyFish® filter is a tertiary stormwater treatment system featuring membrane filtration to provide exceptional pollutant removal at high treatment flow rates with minimal head loss and low maintenance costs. The JellyFish® filter uses gravity, flow rotation, and • The system provides tertiary level performance with a up-flow membrane filtration to provide tertiary small footprint treatment to stormwater in an underground structure. The proven performance of the JellyFish® filter and Using unique filtration cartridges, each JellyFish® filter high flow rate membranes enables water quality provides a large membrane surface area, resulting in high objectives to be met with a smaller footprint system flow rates and pollutant removal capacity. than typical bioretention systems. The JellyFish® filter efficiently captures a high level of • It has been independently researched and proven The JellyFish® filter has been independently researched stormwater pollutants, including: under both laboratory and field conditions in the • Total Suspended Solids (TSS), median removal United States and Australia. In the United States, it has efficiency of 89%, including particles down to received verification under the stringent New Jersey two microns Corporation for Advanced Technology (NJCAT) protocol. • Total Nitrogen (TN), median removal efficiency of 55% • Total Phosphorous (TP), median removal efficiency • It treats higher flow rates than most filters Each filter cartridge has an effective filter area of of 65% 35.4 m2 designed to treat 5 litres per second (L/s) • Total Copper (Cu), median removal efficiency of 61% during operation. • Total Zinc (Zn), median removal efficiency of 91%. • Above-ground land use is maintained Designed as a polishing device for constrained sites, the The system is assembled within a fully-trafficable, JellyFish® filter is available in a range of sizes to cater for precast concrete structure for underground both at-source and end-of-pipe solutions. installations on constrained sites, allowing maximum use for above-ground activities. • Maintenance is easy The filter backwashes after peak flows so it can self-clean several times in each storm event. Manual backwash is recommended annually. When cartridge replacement is required (usually every three to five years), it is a safe and simple process. • We provide world class treatment solutions Humes has a team of water specialists dedicated to delivering sustainable solutions, creating maximum value for your project, accommodating your site conditions, design requirements and construction factors. JellyFish® filter 1 System components • Filter cartridges are designated as either high-flow or draindown cartridges, depending on their location in The JellyFish® filter is comprised of several structural and the cartridge deck. High-flow cartridges placed within functional components: the backwash pool are automatically backwashed after • A cylindrical precast concrete structure which is available in a range of diameters and depths that each storm event. • Draindown cartridges located outside the backwash serves as a vessel providing structural support pool facilitate the draindown of the backwash for a 50 year design life and provides storage for pool. The design flow rate (2.5 L/s) of a draindown accumulated filtered pollutants. cartridge is controlled by the lid orifice. The lower • A rigid high-strength fibreglass cartridge deck separates the vessel into a lower chamber and upper chamber. This houses the filter cartridges, provides a surface and flow path for treated water to the design flow rate of the draindown cartridge ensures the membranes last for longer periods between scheduled maintenance. • Cartridge lids are fastened into the deck to securely effluent pipe, and provides containment of oil and anchor the filter cartridges. The lids are removable to other hydrocarbons below the deck and also provides allow manual rinsing and replacement of the filter a platform for maintenance personnel to safely service cartridges when required. Cartridge lids contain a the filter cartridges. flow control orifice that is specifically sized for use • The lower chamber provides storage for pollutant separation and membrane filtration. • The upper chamber provides adequate clearance for inspection and maintenance. with high-flow and draindown cartridges. Blank lids have no orifice and are used to cover unoccupied deck apertures in systems that do not use the full rated flow capacity of the system. • A rigid fibreglass backwash pool weir extends • A rigid high-strength fibreglass Maintenance Access 150 mm above the cartridge deck and encloses the Wall (MAW) attenuates influent water velocity and high-flow cartridges. During inflow, filtered water directs flow into the lower chamber through a large leaving the high-flow cartridges forms a pool inside opening in the cartridge deck. In addition, it provides the weir. When the water level in the pool exceeds storage for floatable pollutants. It also serves as an the weir height it overflows and spills to the cartridge inspection and maintenance access point. deck where it then flows to the outlet pipe. As the • JellyFish® membrane filtration cartridges are secured inflow event subsides and pressure decreases, water to the deck by the cartridge lids. Each filter cartridge in the backwash pool reverses flow direction and consists of multiple membrane filter tentacles, which automatically backwashes the high-flow cartridges, treat the stormwater by filtering out fine suspended cleaning the membrane surfaces. Water in the lower particulates (TSS) and particulate-bound pollutants on chamber (below deck) is displaced through the the membrane of each tentacle. Filtered water passes draindown cartridges. through the membranes, up the centre tube of each This self-cleaning mechanism may occur multiple tentacle and exits through the top. times during a single storm event as rainfall/runoff intensities rise and fall, thereby significantly extending the service life of the cartridges and the maintenance interval. 2 JellyFish® filter • Large diameter access lids are installed at the surface and defines the filtration zone. The separator skirt and are removed to allow access for maintenance extends the full length of the filtration tentacles and of the system. The upper chamber is designed prevents contamination of the membranes with oil with tapered surrounds to match with finished and floatable debris. The separator skirt also forces surface grades. JellyFish® filter • A separator skirt encloses the filtration cartridge water to enter the filtration zone under low velocities. The separator skirt is attached to the underside of the The JellyFish® filter and components are depicted in cartridge deck. Figure 1 below. • As an option, the inlet pipe can be located below the deck for drainage networks with deep invert levels. In these systems, a deflector plate is installed across the inlet pipe to induce tangential water flow through the channel between the chamber wall and separator skirt. Figure 1 – JellyFish® filter components Maintenance access wall High-flow cartridges Inlet Backwash pool Outlet Draindown cartridge Cartridge deck Separator skirt JellyFish® filter 3 Membrane filtration cartridge Figure 2 – JellyFish® membrane filtration cartridge Head plate The JellyFish® filter utilises multiple lightweight membrane filtration cartridges. Each cartridge consists of Lifting eyes Attachment nuts Gasket multiple removable filter elements (“filtration tentacles”) attached to a cartridge head plate. Each filtration tentacle consists of a central perforated tube surrounded by a specialised membrane. A removable oil-resistant polymeric gasket provides a watertight seal between the cartridge and the deck. A JellyFish® membrane filtration Tentacles cartridge is depicted in Figure 2. The cartridge length is 1,372 mm. The dry weight of a new cartridge is less than 9 kg, and the wet weight of a used cartridge is less than 23 kg. No heavy lifting equipment is required during exchange. The filtration tentacle membranes provide a large surface area, resulting in high flow and suspended sediment These values translate to a conservative design removal capacities. A typical JellyFish® cartridge with membrane filtration flux rate (flow per unit surface area) 11 filtration tentacles has 35.4 m of membrane of 0.14 L/s/m2 for the high-flow cartridge and 0.07 L/s/m2 surface area. Hydraulic testing on clean filter cartridges for the draindown cartridge. 2 demonstrated a flow rate of 11.3 L/s at 455 mm of driving head. In addition, the filtration membrane has been treated to allow biofilm to grow but not clog the pores of the Extensive independent field testing, including testing membrane. The flow rating of a particular JellyFish® filter at an urban site with high intensity rainfall and runoff, cartridge is based on the membrane filtration surface has demonstrated consistently high pollutant removal area of the cartridge and data collected from both performance with a conservative design flow rate of laboratory testing and field testing. The cartridge deck 5 L/s for the high-flow cartridges and 2.5 L/s for the contains apertures for each filter cartridge. draindown cartridges. 4 JellyFish® filter System operation JellyFish® filter Gravitational forces remove coarse sediment (generally >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 particles settling Flow rotation Membrane filtration JellyFish® filter 5 Flow into the lower chamber must then pass tangentially Self-cleaning functions around the separator skirt protecting the cartridges and increasing the flowpath length. Coarse sediment The JellyFish® filter utilises several self-cleaning settles out of the MAW zone into the sump. As water processes to remove accumulated sediment from the flows tangentially around the separator skirt in the external surfaces of the filtration membranes, including lower chamber, the large opening in the bottom of the automatic backwash of the high-flow cartridges, separator skirt and upward change in direction further vibrational pulses, and gravity. These processes have reduces flow velocity and enhances particle separation. been confirmed by more than 12 months of full As a result, sediment settles in the sump. scale prototype testing. Combined, these processes significantly extend the cartridge life, maintenance Flows pass through the cartridge in the filtration zone. interval and reduce life-cycle costs. Each filter cartridge consists of multiple tentacles. Hydraulic pressure across the entire membrane surface Automatic backwash occurs with the high-flow area causes water to penetrate the filtration tentacles. cartridges at the end of each runoff event. This can occur Water enters the membrane pores radially and deposits multiple times during a single storm event as intensity fine particulates on the exterior membrane surface. and driving head varies. As the inflow subsides and Filtered water flows into the centre drain tube of each driving head decreases, water in the backwash pool tentacle, the water then flows upward and out the top. reverses flow direction and automatically backwashes the high-flow cartridges, removing sediment from the Water exiting the top of the tentacles combines under membrane surfaces. Water in the lower chamber (below the lid, where the combined flow exits the cartridge deck) is displaced through the draindown cartridges. through the orifice with a pulsating fountain effect into the backwash pool. When the water level in the Vibrational pulses occur as a result of complex and backwash pool exceeds the weir height it overflows to variable pressure and flow direction conditions that the outlet pipe. arise in the deck during operation. During forward flow a stream of filtered water exits the top of each filtration Outside the backwash pool, the draindown cartridge cartridge and encounters resistance from the turbulent provides treatment at a reduced flow rate (2.5 L/s) and pool of water in the backwash pool. Water is forced allows the treated water captured in the backwash pool through the cartridge lid orifice into the backwash pool to return through the cartridges and balance water with a pulsating fountain effect. The resulting pulses pressure as the storm event ends. transmit vibrations through the deck to the membranes, thereby dislodging accumulated sediment. The effect As particles build up on the external membrane surface, is pronounced at higher flow rates, and influences the pores progressively become smaller. This process, all cartridges. referred to as “filter ripening”, significantly improves the removal efficiency relative to a brand new or clean Accumulated sediment on the membranes will settle membrane. Filter ripening accounts for the ability of under gravity both during inflow events and inter-event the JellyFish® filter to remove particles finer than the dry periods. As fine particles form into larger masses nominal pore size. An animation of the JellyFish® filter on the membrane surface, adhesion to the membrane operation and maintenance is available at humes.com.au. surface lessens, and sediment sheds away from the membrane. Chemical processes and biofilm effects also play a role. 6 JellyFish® filter Inlet and outlet pipes The JellyFish® filter has been designed to provide tertiary An above-deck inlet pipe configuration is standard level treatment and may be combined with a Gross for the JellyFish® filter and an optional below-deck Pollutant Trap (GPT) as part of a treatment train to inlet configuration is available on request. Specific site optimise overall performance. constraints generally determine the configuration that JellyFish® filter System performance is most favourable. In both configurations, the invert level of the outlet pipe is identical to the cartridge deck elevation. Treatment efficiency Extensive research of the JellyFish® filter has proven its performance under Australian laboratory, US field conditions and Australian field conditions. Field testing in the United States has received independent verification under the stringent New Jersey Corporation for Advanced Technology (NJCAT) protocol. The results are summarised in Table 1 below. Table 1 – JellyFish® filter performance summary Pollutant Median reduction TSS 89% TP 65% TN 55% Cu 61% Zn 91% Total oil and grease 62% Reference: University of Florida (2011) and West Ipswich (2014). JellyFish® filter 7 System options The JellyFish® filter can be customised to suit your project requirements. As each treatment train is unique and units are designed to match surface levels, please contact Humes for assistance, however, Table 2 below can be used as a guide. Table 2 – JellyFish® filter model range and details JellyFish® model Number of highflow cartridges Number of draindown cartridges Inlet pipe diameters (mm) Treatment flow (L/s) JF1200-1-1 1 7.5 JF1200-2-1 2 12.5 JF1800-3-1 3 JF1800-4-1 4 JF1800-5-1 5 JF1800-6-1 6 32.5 JF2400-6-2 6 35.0 JF2400-7-2 7 40.0 JF2400-8-2 8 JF2400-9-2 9 50.0 JF2400-10-2 10 55.0 JF3000-11-3 11 JF3000-12-3 12 JF3000-12-4 12 70.0 JF3000-13-4 13 75.0 JF3000-14-4 14 80.0 JF3000-15-4 15 85.0 JF3000-16-4 16 JF3000-17-4 17 95.0 JF3000-18-4 18 100.0 JF3000-19-4 19 105.0 JF3600-20-5 20 112.5 JF3600-21-5 21 JF3600-22-5 22 JF3600-23-5 23 JF3600-24-5 24 JF3600-25-5 25 137.5 JF3600-26-5 26 142.5 JF3600-27-5 27 147.5 150 - 225 2 22.5 27.5 45.0 225 - 300 8 JellyFish® filter 2,400 67.5 3,000 90.0 300 - 375 117.5 122.5 127.5 132.5 Note: Designers should allow for upstream and downstream bypass pits and a bypass pipe link in a triangular configuration. 1,800 62.5 4 5 1,200 17.5 1 3 Nominal structure diameter (mm) 3,600 For the standard above-deck inlet pipe configuration, the JellyFish® filter Design information invert elevation of the inlet pipe is typically set 150 mm The JellyFish® filter has many flexible design features to higher than the invert elevation of the outlet pipe. This accommodate a wide range of specific site requirements generally ensures that the inlet pipe will drain completely and constraints. Please contact Humes for assistance. after each rainfall/runoff event, while providing sufficient volume within the MAW zone for surface accumulation of floatables below the inlet pipe. The elevation of the Configurations and design capacities inlet pipe can be varied as required. Design flow capacities and pollutant capacities for The JellyFish® filter can accommodate a range of angles standard JellyFish® filter configurations are shown in between the inlet and outlet pipes. Standard outlet pipe Table 2 on the previous page. locations are within a 180° span about the circumference of the structure (refer to Figure 4 below). The separation The JellyFish® filter standard model numbers provide angle relationship of the inlet pipe to the outlet pipe can information about the manhole inside diameter and vary from 90 to 270 degrees to provide maximum design cartridge counts for high-flow and draindown cartridges. flexibility. Contact Humes Water Solutions for assistance For example, the JellyFish® filter model number with angles outside this range. The JellyFish® filter can be JF1800-5-1 is an 1,800 mm diameter structure with five installed at a range of depths of cover. high-flow cartridges and one draindown cartridge. With systems using an external bypass from an upstream Figure 4 – Typical JellyFish® filter outlet locations diversion structure, the driving head is calculated as the Inlet Outlet difference in elevation between the top of the diversion structure weir and the invert of the JellyFish® filter outlet pipe. A minimum of 455 mm is required to drive the flow through the JellyFish® filter at the rates shown in Table 2. Recommended design flows of 5 L/s for high flow cartridges and 2.5 L/s for draindown cartridges are to ensure longevity of the filter. Submerged or backwater conditions may be accommodated in some circumstances and assistance from Humes engineers is recommended. JellyFish® filter 9 The pressure relief pipe height and diameter can be Bypass design varied to accommodate the design peak flow rate and The JellyFish® filter should be designed in an offline system driving head requirements. For these systems, the configuration for most catchments. All stormwater filter driving head is calculated as the difference in elevation systems will perform for a longer duration between between the top of the pressure relief pipe and the invert required maintenance services when designed and of the outlet pipe. applied in offline configurations. A standard offline configuration has an external bypass that uses an When the internal bypass option is utilised, peak flow upstream diversion structure. The elevation difference rates receive membrane filtration treatment up to the between the top of the diversion structure and the filtration design flow rate, with the balance of the peak JellyFish® filter outlet pipe invert should be a minimum flow receiving primary treatment only. In these cases, of 455 mm. Excess flow that overflows the diversion, increased sump depth may be required to increase bypasses the JellyFish® filter. sediment storage capacity and to minimise re-suspension of previously captured sediment at peak flow rates. For smaller sites an online configuration might be more suitable. In these cases, an optional internal bypass It is also possible to configure this arrangement using pressure relief pipe(s) can be placed in one or multiple a single diversion structure. Contact Humes for design cartridge receptacles within the JellyFish® filter. assistance. Figure 5 – JellyFish® filter offline arrangement without diversion weir JellyFish® unit outlet I.L. is 455 mm lower than I.L. of high flow bypass inlet Diversion chamber inlet Low flo w w Lo flo w High flow bypass Bypass inlet I.L. is 455 mm higher than JellyFish® unit outlet JellyFish® unit Diversion chamber Collection chamber Figure 6 – JellyFish® filter offline arrangement with diversion weir JellyFish® unit outlet I.L. is 455 mm lower than top of weir wall Diversion chamber inlet Low flo w w Lo flo w High flow bypass Top of weir is 455 mm higher than I.L. of JellyFish® unit outlet Diversion chamber 10 JellyFish® filter JellyFish® unit Collection chamber Figure 7 – JellyFish® filter with dry sump option Concrete cover The JellyFish® filter can be supplied with a dry sump during a rainfall event to an offline soak well. positioned filter “tentacle” that is covered by a stainless Manholes Upper converter surround ring Lower converter surround ring option by way of filtering the water collected in the sump The captured water is filtered with a horizontally JellyFish® filter Dry sump option Treatment chamber Maintenance access wall Outlet pipe Inlet pipe steel shroud for protection at the sump invert. Drainage channel The release of filtered water is controlled by using an orifice plate at the exit of the sump, which is sized Separator skirt to match the required hydraulic conductivity of the Filter cartridges receiving media. Base unit Submerged (tidal/tailwater) installations The JellyFish® filter is designed to function optimally Perforated shroud under free-surface flow conditions. For systems that Filter medium may experience submerged or backwater conditions due One-way valve Stop valve to tailwater or tidal effects, driving head calculations must account for water elevation during the backwater uPVC pipe condition. The JellyFish® filter treatment functions will continue to operate despite backwater conditions. A customised design will be required to ensure litter capture and backwash. Contact Humes for assistance. Series JellyFish® filter For sites with water quality treatment flow rates that exceed the design flow rate of the largest standard JellyFish® filter model, custom systems can be designed that hydraulically connect multiple JellyFish® filters in series. For any design questions or custom modifications, contact Humes for assistance. JellyFish® filter 11 System installation The JellyFish® filter can be installed by a civil or plumbing contractor in much the same way as a manhole or other stormwater drainage structures. It is supplied on-site in separate, easily identifiable components. The upstream bypass pit and downstream junction pit are supplied separately. The JellyFish® filter is lowered into place by a crane or excavator, the components interlock and a tapered surround can be supplied and rotated to match a surface grade (if the system is located in road pavement). The system arrives to the site with the internal parts fully assembled. Inspection and maintenance For inspection and maintenance information, please refer to the JellyFish® filter owner’s manual. An animation of the JellyFish® filter operation and maintenance is available at humes.com.au. Replacement parts Replacement parts for the JellyFish® filter can be ordered by contacting Humes at ph 1300 361 601 or [email protected]. 12 JellyFish® filter JellyFish® filter Appendices JellyFish® filter standard drawings JellyFish® filter inspection and maintenance log JellyFish® filter 13 Holcim (Australia) Pty Ltd TECHNICAL SERVICES BRISBANE, QUEENSLAND Holcim (Australia) Pty Ltd TECHNICAL SERVICES BRISBANE, QUEENSLAND Holcim (Australia) Pty Ltd TECHNICAL SERVICES BRISBANE, QUEENSLAND Holcim (Australia) Pty Ltd TECHNICAL SERVICES BRISBANE, QUEENSLAND Holcim (Australia) Pty Ltd TECHNICAL SERVICES BRISBANE, QUEENSLAND Humes Holcim (Australia) Pty Ltd ABN 87 099 732 297 18 Little Cribb st Milton QLD 4064 Australia JellyFish® filter inspection and maintenance log Owner: GPS coordinates: Location: JellyFish® filter model number: Land use: Commercial: Industrial: Service station: Road/highway: Mine site: Residential: Other: Date: Time: Inspector Maintenance contractor Visible oil present (Y/N) Oil quantity removed (Y/N) Floatable debris present (Y/N) Floatable debris removed (Y/N) Water depth in backwash pool Draindown cartridges backflushed (Y/N) Draindown cartridges externally rinsed and re-commissioned (Y/N) New tentacles put on draindown cartridges (Y/N) High-flow cartridges backflushed (Y/N) High-flow cartridges externally rinsed and re-commissioned (Y/N) New tentacles put on high-flow cartridges (Y/N) Sediment depth Sediment removed (Y/N) Cartridge lids intact (Y/N) Other comments: (Deck condition, blockages of upstream/ downstream junctions, skirts, etc..) Phone (07) 3364 2800 Fax (07) 3364 2835 www.humes.com.au Precast solutions Top: StormTrap® system Middle: RainVault® system Bottom: Segmental shaft Stormwater Stormwater treatment Primary treatment HumeGard® Gross Pollutant Trap Secondary treatment HumeCeptor® hydrodynamic separator Tertiary treatment JellyFish® filter Detention and infiltration StormTrap® system Soakwells Harvesting and reuse RainVault® system ReserVault® system RainVault® Mini system Precast concrete cubes Segmental shafts Stormwater drainage Steel reinforced concrete pipes – trench Steel reinforced concrete pipes – salt water cover Steel reinforced concrete pipes – jacking Corrugated Metal Pipe (CMP) Box culverts Uniculvert® modules Headwalls Stormwater pits Access chambers/Manholes Kerb inlet systems Floodgates Geosynthetics Sewage transfer and storage Bridge and platform Tunnel and shaft Walling Potable water supply Irrigation and rural Traffic management Cable and power management Rail 20 JellyFish® filter Contact information National sales 1300 361 601 humes.com.au [email protected] Head Office New South Wales Tasmania 18 Little Cribb St Grafton Launceston Milton 4064 QLD Ph: (02) 6644 7666 Ph: (03) 6335 6300 Ph: (07) 3364 2800 Fax: (02) 6644 7313 Fax: (03) 6335 6330 Fax: (07) 3364 2963 Newcastle Ph: (02) 4032 6800 South Australia Queensland Fax: (02) 4032 6822 Ipswich/Brisbane Sydney Ph: (08) 8168 4544 Ph: (07) 3814 9000 Ph: (02) 9832 5555 Fax: (08) 8168 4549 Fax: (07) 3814 9014 Fax: (02) 9625 5200 Rockhampton Tamworth Ph: (07) 4924 7900 Ph: (02) 6763 7300 Fax: (07) 4924 7901 Fax: (02) 6763 7301 Adelaide Western Australia Gnangara Ph: (08) 9302 8000 Townsville Ph: (07) 4758 6000 Fax: (08) 9309 1625 Victoria Perth Fax: (07) 4758 6001 Echuca Ph: (08) 9351 6999 Ph: (03) 5480 2371 Fax: (08) 9351 6977 Fax: (03) 5482 3090 Melbourne Northern Territory Ph: (03) 9360 3888 Fax: (03) 9360 3887 Darwin Ph: (08) 8984 1600 Fax: (08) 8984 1614 National sales 1300 361 601 humes.com.au [email protected] A Division of Holcim Australia This brochure supersedes all previous literature on this subject. As the specifications and details contained in this publication may change please check with Humes Customer Service for confirmation of current issue. This document is provided for information only. Users are advised to make their own determination as to the suitability of this information or any Humes product for their own specific circumstances. We accept no responsibility for any loss or damage resulting from any person acting on this information. Humes is a registered business name of Holcim (Australia) Pty Ltd. The JellyFish filter is manufactured, marketed, and sold by Humes under licence from Imbrium Systems Inc, Canada. JellyFish is a registered trademark of Imbrium Systems Inc, Canada and is used in Australia under license. Humes is a registered trademark of Holcim Australia Pty Limited. JellyFish is registered under Australian Patent No. 2008286748, US Patent Application No. 11/839,303 and 12/014,888 and International Publication No. WO 2009/023832 A1. © April 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 prior written consent of Holcim.